Press Alt + R to read the document text or Alt + P to download or print.
This document contains no pages.
HomeMy WebLinkAboutFinal Agenda Packet
CITY OF RENTON
AGENDA - City Council Regular Meeting
7:00 PM - Monday, July 19, 2021
Council Chambers, 7th Floor, City Hall – 1055 S. Grady Way
Due to the COVID-19 pandemic, Councilmembers are attending this meeting remotely
through Zoom. Audience comments will be accommodated through Zoom, but the public is
requested to sign up for such testimony by calling 425-430-6501 or emailing
cityclerk@rentonwa.gov or jsubia@rentonwa.gov by 10 a.m. on the day of the meeting. The
public may also submit comments in writing to cityclerk@rentonwa.gov by 5 p.m. on the day
of the meeting.
For those wishing to attend by Zoom, please (1) click this link:
https://us02web.zoom.us/j/84938072917?pwd=TUNCcnppbjNjbjNRMWpZaXk2bjJnZz09 (or
copy the URL and paste into a web browser) or (2) call-in to the Zoom meeting by dialing 253-
215-8782 and entering 849 3807 2917 Passcode 156708, or (3) call 425-430-6501 by 10 a.m.
on the day of the meeting to request an invite with a link to the meeting.
Those providing audience comments will be limited to 5 minutes each speaker unless an
exception is granted by the Council. Attendees will be muted and not audible to the Council
except during times they are designated to speak. Advance instructions for how to address
the Council will be provided to those who sign up in advance to speak and again during the
meeting.
1. CALL TO ORDER
2. ROLL CALL
3. PUBLIC HEARING
a) Extend Interim Zoning Controls in the Urban Center (UC) Zone
4. ADMINISTRATIVE REPORT
a) Administrative Report
5. AUDIENCE COMMENTS
NOTICE to all participants: Pursuant to state law, RCW 42.17A.555, campaigning for any
ballot measure or candidate in City Hall and/or during any portion of the council meeting,
including the audience comment portion of the meeting, is PROHIBITED.
6. CONSENT AGENDA
The following items are distributed to Councilmembers in advance for study and r eview, and
the recommended actions will be accepted in a single motion. Any item may be removed for
further discussion if requested by a Councilmember.
a) Approval of Council Meeting minutes of July 12, 2021.
Council Concur
b) AB - 2906 City Clerk reports bid opening on May 27, 2021 for CAG -21-033, Houser Way
Intersection and Pedestrian Improvements project, and submits the staff
recommendation to award the contract to the lowest responsive and responsible bidder,
Westwater Construction Company, in the amount of $1,169,867.05. This project will
make improvements at the intersections of Houser Way S with Wells Ave S and Williams
Ave S, including raised asphalt intersections, new curb/gutter/sidewalk, illumination,
streetscape landscaping, channelization/signing, storm drainage, and a new 12" water
main installed in an existing casing under the BNSF railroad tracks.
Council Concur
c) AB - 2907 City Clerk reports bid opening on June 24, 2021 for the Duvall Ave NE - NE 9th
St to Sunset Blvd (SR-900) project, CAG -20-065, and submits the staff recommendation to
award the contract to the lowest responsive and responsible bidder, Reed Trucking &
Excavating, Inc., in the amount of $5,218,171.95. Th is project will reconstruct Duvall Ave
NE between NE Sunset Blvd and NE 10th St with four travel lanes, left turn pockets, bike
lanes, curb/gutter/landscaped medians, a sidewalk along the west side, and new
illumination and an enhanced storm drainage syste m.
Council Concur
d) AB - 2905 Police Department recommends approval of a cost reimbursement agreement
with the King County Sheriff's Office, in order to receive up to $16,246.55 for
reimbursement of overtime costs for verifying the addresses and re sidencies of
registered sex and kidnapping offenders in Renton.
Council Concur
e) AB - 2892 Public Works Utility Systems Division recommends adoption of a resolution
ratifying the 2021 WRIA 9 (Green/Duwamish and Central Puget Sound Watershed)
Salmon Habitat Plan Update.
Refer to Utilities Committee
f) AB - 2899 Public Works Utility Systems Division recommends approval to execute an
agreement with RH2 Engineering, Inc., in the amount of $216,343, for design and services
during bidding of the West Hill Booster Pump Station Improvements project.
Refer to Utilities Committee
7. UNFINISHED BUSINESS
Topics listed below were discussed in Council committees during the past week. Those topics
marked with an asterisk (*) may include legislation. Committee reports on any topics may be
held by the Chair if further review is necessary.
a) Finance Committee: Vouchers, Local Agency Agreement with the Federal Aviation
Administration Under the Airport Improvement Grant Program for an Airport Layout Plan
and Narrative Update, Utility Billing Leak Adjustment for Valley Medical Center, City
Policy 800-12, City-Wide Department Reorganization*
8. LEGISLATION
Resolutions:
a) Resolution No. 4441: 2021/2022 2nd Quarter Fee Schedule Update (Approved via
7/12/2021 Finance Committee)
b) Resolution No. 4442: Amending Council Policy 800-12 (See Item 7.a)
Ordinances for first reading and advancement to second and final reading:
c) Ordinance No. 6022: Extension of IZC in UC Zone (See Item 3.a)
d) Ordinance No. 6023: Title III - City-wide Reorganization (See Item 7.a)
Ordinance for second and final reading:
e) Ordinance No. 6021: 2021 2nd Quarter Budget Amendment (First Reading 7/12/2021)
9. NEW BUSINESS
(Includes Council Committee agenda topics; visit rentonwa.gov/cityclerk for more
information.)
10. ADJOURNMENT
COMMITTEE OF THE WHOLE MEETING AGENDA
(Preceding Council Meeting)
6:00 p.m. - MEETING REMOTELY
Hearing assistance devices for use in the Council Chambers are available upon request to the City Clerk
CITY COUNCIL MEETINGS ARE TELEVISED LIVE ON GOVERNMENT ACCESS CHANNEL 21
To view Council Meetings online, please visit rentonwa.gov/councilmeetings
PUBLIC HEARING:
URBAN CENTER (UC) ZONE –INTERIM ZONING CONTROLS
Renton City Council
July 19, 2021
Presented by: Paul Hintz, Senior Planner
425-430-7436
phintz@rentonwa.gov AGENDA ITEM #3. a)
BACKGROUND
Emergency Ordinance 6012 was adopted on January 25, 2021.
Established interim zoning controls for the UC zone:
1.Development of multifamily requires commercial space integrated into
the ground floor equivalent to 33% of the site’s land area;
2.Subject to Residential Mixed-Use Standards of RMC 4-4-150; and
3.Building setbacks of the Commercial Arterial zone.
State law allows interim controls to be extended after a public hearing if a work
program is developed.
Staff have initiated a work program and are requesting interim zoning controls
to be extended until October 31, 2021. AGENDA ITEM #3. a)
FINDINGS
The Urban Center (UC) zone is intended for the creation of dense employment,
destination retail, recreation, and public gathering spaces, with the potential
for large scale redevelopment opportunities that will create a mixed-use retail,
employment and residential center;
The purpose of the UC zone is to provide an area for pedestrian-scale urban
mixed-use development that supports the residential and employment goals
of Renton’s Regional Growth Center;
A development agreement between the City of Renton and The Boeing Company
governing many of the use and development standards in the UC zone sunset
on December 31, 2020;
Without that development agreement there are insufficient zoning controls for
new development in the UC zone, as compared to the zoning controls of other
commercial zones in the City, thereby limiting the City’s ability to further the policy
and purpose of the zone. AGENDA ITEM #3. a)
Staff Contact:
Paul Hintz, Senior Planner
425-430-7436
phintz@rentonwa.gov
Tonight:Accept public testimony and vote on interim zoning controls
Date TBD: Planning Commission briefing
NEXT STEPS
AGENDA ITEM #3. a)
EXECUTIVE DEPARTMENT
M E M O R A N D U M
DATE: July 19, 2021
TO: Randy Corman, Council President
Members of Renton City Council
FROM: Armondo Pavone, Mayor
Ed VanValey, Chief Administrative Officer
SUBJECT: Administrative Report
• Update from the Parks and Trails Division:
o Construction begins in August to retrofit the May Creek Trestle to provide a
12-foot-wide paved trail bridge for the Eastrail. Detour around the site is out
to Lake Washington Boulevard North and back onto the trail. For your safety,
please follow directions on all posted signage. Email
Eastrail@kingcounty.gov with any questions.
o Renton Farmers Market continues at Gateway Park each Tuesday from 3:00
to 7:00 p.m. Purchase fresh produce, prepared foods, flowers, and more;
enjoy crafting in the children’s area and live music provided by Renton’s
Municipal Arts Commission. Supplemental Nutrition Assistance Program and
matching dollars are also available. See the Renton Farmers Market webpage
for more information.
• Update from the Parks Planning and Natural Resources Division:
o The basketball court at Thomas Teasdale Park is reopened after being
demolished and replaced, and with a new mow curb. The new court
complements the colors of the adjacent playground that was renovated in
2019.
For updated parks and trails information, visit rentonwa.gov/parks or contact
Community Services at 425-430-6600.
• Are you looking for a fun and educational activity for your five to 12-year-olds this
summer? Renton Police Department has partnered with Renton Regional Fire
Authority to present a five-week Virtual Youth Public Safety Academy. Weekly from
Wednesday, July 21 to August 11, the departments will post a video with a link to an
activity that your child can complete at their own pace. You can participate in all
activities or just the ones that are of interest. On Wednesday, August 18, the last
activity will be a virtual Q&A with a police officer and firefighter. It's an excellent
opportunity to ask questions and learn about police and fire careers. Please go to
the Renton Police Department Facebook page for more information.
AGENDA ITEM #4. a)
Randy Corman, Council President
Members of Renton City Council
Page 2 of 2
July 19, 2021
• Information about preventative street maintenance, traffic impact projects, and
road closures happening this week can be found at http://rentonwa.gov/traffic. All
projects are weather permitting and unless otherwise noted, streets will always
remain open. Preventative street maintenance, traffic impact projects, and road
closures will be at the following locations:
Monday, July 19 through Friday, July 23, 7:00 a.m. to 4:00 p.m. The
intersection of Lake Washington Boulevard Southeast and Southeast 76th Street
will be controlled by flaggers in support the WSDOT I-405 Renton to Bellevue
Widening and Express Toll Lanes Project. Questions may be directed to Justin
Johnson at 425-902-7172.
Monday, July 19 through Friday, July 23, 8:30 a.m. to 3:30 p.m. Possible trucks
entering and exiting onto Maple Valley Highway east of 140th Way SE. Questions
may be directed to Tom Main at 206-999-1833.
Monday, July 19 through Friday, July 23, 7:00 a.m. to 4:00 p.m. Street
maintenance crews will conduct asphalt repairs along SE 182nd Street between
112th Avenue SE and 114th Avenue SE. During this time, only local traffic and
emergency vehicles will have access to the project area.
Ongoing Trail Closure through Summer 2021. Ripley Lane North Trail closure
just north of the VMAC and the trailhead going north in support the WSDOT I-
405 Renton to Bellevue Widening and Express Toll Lanes Project. Questions may
be directed to Justin Johnson at 425-902-7172.
Lake Washington Loop Trail Project, Logan Avenue South and Airport Way.
Lane closures continue between now and project completion in late
summer/early fall. For more information and project updates, please visit the
project webpage at
https://rentonwa.gov/cms/One.aspx?portalId=7922741&pageId=9346818.
Williams Avenue South and Wells Avenue South Conversion Project. Impacts
to traffic will continue throughout this area between South 2nd Street and South
3rd Street. Please visit the project webpage at https://rentonwa.gov/ww for
more information.
Downtown Utility Improvement Project. The Downtown Utility Improvement
Project requires several roadway closures and detours between now and project
completion in 2022. For more information on current upcoming road closures
and traffic impacts or to sign up for email or text alerts, visit the project website
at https://rentonwa.gov/duip.
AGENDA ITEM #4. a)
July 12, 2021 REGULAR COUNCIL MEETING MINUTES
CITY OF RENTON
MINUTES - City Council Regular Meeting
7:00 PM - Monday, July 12, 2021
Council Chambers, 7th Floor, City Hall – 1055 S. Grady Way
CALL TO ORDER
Mayor Pavone called the meeting of the Renton City Council to order at 7:00 PM.
ROLL CALL
Councilmembers Present:
Randy Corman, Council President
Angelina Benedetti, Council Position No. 2
Valerie O'Halloran, Council Position No. 3
Ryan McIrvin, Council Position No. 4
Ed Prince, Council Position No. 5
Ruth Pérez, Council Position No. 6
Kim-Khánh Vǎn, Council Position No. 7
(All councilmembers attended remotely)
Councilmembers Absent:
ADMINISTRATIVE STAFF PRESENT
Armondo Pavone, Mayor
Ed VanValey, Chief Administrative Officer
Cheryl Beyer, Senior Assistant City Attorney
Jason Seth, City Clerk
Judith Subia, Council Liaison
Preeti Shridhar, Deputy Public Affairs Administrator
Chip Vincent, Community & Economic Development Administrator
Martin Pastucha, Public Works Administrator
Kari Roller, Administrative Services Administrator
Ellen Bradley-Mak, Human Resources and Risk Management Administrator
Kelly Beymer, Community Services Administrator
Ron Straka, Public Works Utility Systems Director
Vanessa Dolbee, Planning Director
Kristi Rowland, Organizational Development Manager
Kim Gilman, HR Labor Manager
AGENDA ITEM #6. a)
July 12, 2021 REGULAR COUNCIL MEETING MINUTES
Amanda Askren, Property & Technical Services Manager
Interim Chief Jon Schuldt, Police Department Administrator
Commander Chad Karlewicz, Police Department
(All City staff attended remotely except City Clerk Seth)
ADMINISTRATIVE REPORT
CAO Ed VanValey reviewed a written administrative report summarizing the City’s recent
progress towards goals and work programs adopted as part of its business plan for 2021 and
beyond. Items noted were:
• The Washington State Department of Ecology has awarded the Surface Water Utility a
total of $5 million in Stormwater Financial Assistance Program grant funding for the
following projects:
o Stormwater Management Action Planning Study - $202,125. This study will assess
water quality in city subbasins and is a regulatory requirement of the city’s NPDES
Municipal Stormwater Permit.
o Monroe Avenue NE Storm System Improvements - $4,797,875. This project is a
combined flood reduction and water quality retrofit project and will design and
construct a permanent drainage and water quality treatment solution to replace an
expiring temporary stormwater overflow for a 245-acre basin draining into Monroe
Avenue NE and South 2nd Street.
• Preventative street maintenance will continue to impact traffic and result in
occasional street closures.
AUDIENCE COMMENTS
• Lanissa Youngquist, Renton, stated that she is a member of the Black Lives Matter
mural team, provided an update on the progress of the mural, and urged the City to
help the team get this important piece of artwork installed before the end of painting
season.
• Tree Williams, Renton, stated that he is also a member of the Black Lives Matter
mural team and echoed Ms. Youngquist's request to help the team complete the
project as soon as possible.
Mayor Pavone noted that a location had been selected for the mural, but some residents had
objected to that location. He also noted that a new location in a City parking lot had been
designated but would follow-up with the mural team on the project's progress.
CONSENT AGENDA
Items listed on the Consent Agenda were adopted with one motion, following the listing.
a) Approval of Council Meeting minutes of June 28, 2021. Council Concur.
b) AB - 2901 City Clerk submitted the quarterly list of fully executed contracts between 4/1/2021
- 6/30/2021, and a report of agreements expiring between 7/1/2021 – 12/31/2021. Council
Concur.
AGENDA ITEM #6. a)
July 12, 2021 REGULAR COUNCIL MEETING MINUTES
c) AB - 2897 Administrative Services Department submitted a utility bill leak adjustment request
from Valley Medical Center, a commercial property located at 400 S 43rd St, and
recommended an adjustment in the amount of $4,679.28 for applicable Renton water and
sewer and King County Sewer portions of the utility bill in accordance with Renton Municipal
Code 8-4-46 and 8-5-23. Refer to Finance Committee.
d) AB - 2904 Administration recommended approval of a city-wide reorganization to establish a
new Department of Equity, Housing, and Human Services (EHHS), which includes the creation
of an EHHS Administrator, Administrative Assistant for EHHS, Community Outreach and
Events Coordinator, and moves the Housing Program from the Department of Community and
Economic Development and the Human Services Division from the Community Services
Department to EHHS; establishes an Executive Services Department (ESD), including the
creation of a Deputy Chief Administrative Officer, regrades an Administrative Secretary to
Administrative Assistant for ESD, regrades the Deputy Administrator of Public Affairs to
Director of Communications & Engagement, moves the Information Technology Division from
the Administrative Services Department and the Divisions of the City Clerk, Emergency
Management, Organizational Development, and Communications to ESD; renames the
Administrative Services Department to the Finance Department; renames the Community
Services Department to the Parks and Recreation Department; and moves the Facilities
Division from the Community Services Department to the Public Works Department, effective
August 1, 2021. Refer to Finance Committee.
e) AB - 2902 Administrative Services Department recommends adoption of resolution to update
Policy and Procedure 800-12 in order to align it with City practices and to update state
contracting bid thresholds. Refer to Finance Committee.
f) AB - 2894 Community & Economic Development Department recommended approval of the
following reappointments to the Renton Lodging Tax Advisory Committee: Cathy Martinez,
Director of Design & Owners' Representative, Legacy Development and Management; Pina
Purpero, General Manager of Hyatt Regency Lake Washington; Preeti Shridhar, City of Renton
Deputy Public Affairs Administrator; and Menka Soni, Founder and President of the non-profit
agency AmPowering (formerly Ravishing Women). Council Concur.
g) AB - 2895 Community & Economic Development Department submitted a Multi-Family
Housing Property Tax Exemption application from Sunset Terrace, a 108-unit multi-family
project currently under construction in the Sunset designated residential target area; and
requested the following, 1) waive the application deadline to allow the application to be
submitted after receiving a building permit, 2) approve the Multi-Family Housing Property Tax
Exemption Agreement, and 3) authorize execution of said agreement in substantially the
same form. Refer to Planning & Development Committee.
h) AB - 2896 Public Works Airport recommended approval of a Local Agency Agreement, with
the Federal Aviation Administration, to receive $172,078 in non-matching grant funds for the
purpose of updating the Airport Layout Plan and Narrative Update. Refer to Finance
Committee.
MOVED BY CORMAN, SECONDED BY MCIRVIN, COUNCIL CONCUR TO APPROVE
THE CONSENT AGENDA, AS PRESENTED. CARRIED.
AGENDA ITEM #6. a)
July 12, 2021 REGULAR COUNCIL MEETING MINUTES
UNFINISHED BUSINESS
a) Finance Committee Chair O'Halloran presented a report concurring in the staff recommendation
to approve the following payments:
1. Accounts Payable – total payment of $6,696,276.23 for vouchers, 10298, 10318-
10324, 392899-392902, 392912-393108; payroll benefit withholding vouchers 6601-
6611, 392903-392911 and one wire transfer.
2. Payroll – total payment of $1,475,631.09 for payroll vouchers that include 599 direct
deposits and 20 checks. (06/01/21-06/15/21 pay period).
MOVED BY O'HALLORAN, SECONDED BY PRINCE, COUNCIL CONCUR IN THE
COMMITTEE RECOMMENDATION. CARRIED.
b) Finance Committee Chair O'Halloran presented a report concurring in the staff recommendation
to approve the request to compensate M. Patrice Kent (for Senior Assistant City Attorney) at Step
D Grade m42.
MOVED BY O'HALLORAN, SECONDED BY PRINCE, COUNCIL CONCUR IN THE
COMMITTEE RECOMMENDATION. CARRIED.
c) Finance Committee Chair O'Halloran presented a report concurring in the staff recommendation
to approve a three-year agreement with Origami, in the total amount of $148,140, for
comprehensive risk management tracking and incident management services. The Mayor and
City Clerk are authorized to execute the implementing documents when ready.
MOVED BY O'HALLORAN, SECONDED BY PRINCE, COUNCIL CONCUR IN THE
COMMITTEE RECOMMENDATION. CARRIED.
d) Finance Committee Chair O'Halloran presented a report concurring in the staff recommendation
to:
1. Approve the amendment and adopt the ordinance amending the 2021/2022 Budget
appropriations in the amount of $(27,164,592) for an amended total budget of
$674,490,315 for the biennium; and
2. Approve resolution amending the 2021/2022 Fee Schedule.
MOVED BY O'HALLORAN, SECONDED BY PRINCE, COUNCIL CONCUR IN THE
COMMITTEE RECOMMENDATION. CARRIED.
LEGISLATION
Ordinance for first reading:
a) Ordinance No. 6021: an ordinance was read amending the City of Renton Fiscal Years
2021/2022 Biennial Budget, as adopted by Ordinance No. 5991 and amended by Ordinance
No. 6017, in the amount of $(27,164,592) and establishing an effective date.
MOVED BY O'HALLORAN, SECONDED BY PRINCE, COUNCIL REFER THE
ORDINANCE FOR SECOND AND FINAL READING AT THE NEXT COUNCIL MEETING.
CARRIED.
AGENDA ITEM #6. a)
July 12, 2021 REGULAR COUNCIL MEETING MINUTES
NEW BUSINESS
Please see the attached Council Committee Meeting Calendar.
ADJOURNMENT
MOVED BY PRINCE, SECONDED BY CORMAN, COUNCIL ADJOURN. CARRIED.
TIME: 7:18 P.M.
Jason A. Seth, MMC, City Clerk
Jason Seth, Recorder
12 Jul 2021
AGENDA ITEM #6. a)
Council Committee Meeting Calendar
July 12, 2021
July 19, 2021
Monday
3:00 PM Finance Committee, Chair O’Halloran – VIDEOCONFERENCE
1. Local Agency Agreement with the Federal Aviation Administration
Under the Airport Improvement Grant Program for an Airport Layout
Plan Update
2. Utility Billing Leak Adjustment for Valley Medical Center
3. Update to City Policy 800-12
4. City-wide Department Reorganization
5. Vouchers
6. Emerging Issues in Finance
4:00 PM Utilities Committee, Chair Benedetti - VIDEOCONFERENCE
1. Emerging Issues in Utilities
4:45 PM Public Safety Committee, Chair Pérez - VIDEOCONFERENCE
1. Recent Narcotics Cases Briefing
2. RFA Briefing
3. Emerging Issues in Public Safety
CANCELED Transportation Committee, Chair McIrvin
6:00 PM Committee of the Whole, Chair Corman – VIDEOCONFERENCE
1. Proposed Police Body Worn Camera Program Overview
7:00 PM Council Meeting - VIDEOCONFERENCE
AGENDA ITEM #6. a)
AB - 2906
City Council Regular Meeting - 19 Jul 2021
SUBJECT/TITLE: CONTRACT AWARD: Houser Way Intersection and Pedestrian
Improvements Project; CAG-21-003
RECOMMENDED ACTION: Council Concur
DEPARTMENT: City Clerk
STAFF CONTACT: Jason Seth, City Clerk
EXT.: 6502
FISCAL IMPACT SUMMARY:
Bid Award: $1,169,867.05
Total Budget: $1,479,867 ($123,367 from Water Utility; $789,625 (including a $400,000 Complete Streets
Award from the WA State Transportation Improvement Board) from Transporta tion; and the balance of
$566,875 which will be funded in the next Budget Adjustment).
Engineer's Estimate: $1,092,615.76
SUMMARY OF ACTION:
The City Clerk opened sealed bids for the Houser Way Intersection and Pedestrian Improvements project,
CAG-21-003, on May 21, 2021. The bid opening met the following Council criteria:
1) More than one bid was submitted;
2) The lowest responsive and responsible bid was within the project budget; and
3) There were no irregularities with the lowest responsive and responsible bid.
Therefore, staff recommends awarding the Houser Way Intersection and Pedestrian Improvements project,
CAG-21-003, to the lowest responsive and responsible bidder, Westwater Construction Company, in the
amount of $1,169,867.05.
EXHIBITS:
A. Staff Recommendation Memo
B. Bid Tab
STAFF RECOMMENDATION:
Award the Houser Way Intersection and Pedestrian Improvements project, CAG-21-003, to the lowest
responsive and responsible bidder, Westwater Construction Company, in the amount of $1,169,867.05.
AGENDA ITEM #6. b)
AGENDA ITEM #6. b)
Jason Seth
Page 2 of 2
June 29, 2021
h:\division.s\transpor.tat\design.eng\keith\houser complete streets\600 pre-construction\620 advertising and
award\620.5 bid review & analysis\memo to city clerk award cag-21-003.docx
This construction contract will make improvements at the intersections of Houser Way
South with Wells Avenues South and Williams Avenue South. The improvements will be
raised asphalt intersections, new curb/gutter/sidewalk, illumination, streetscape,
landscaping, channelization/signing, storm drainage, and a new 12” water main installed
in an existing casing under the BNSF railroad tracks.
Attachments: TIP #20-16
Bid Tabulations
Bid Evaluation
cc: Martin Pastucha, Public Works Administrator
Jim Seitz, Transportation Systems Director
Ron Straka, Utilities Systems Director
Vangie Garcia, Transportation Planning Manager
Heather Gregersen, Program Development Coordinator II
Josef Harnden, Transportation Administrative Secretary I
File
AGENDA ITEM #6. b)
City of Renton | 2021-2026 Transportation Improvement Program
TIP #:20-16
Houser Way Intersection and Pedestrian Improvements
Project
City Account #:123007
Planning Area:City Center
Street Classification:Minor Arterial
Project Length:N/A
Description:This project will fund construction of new curb, gutter and sidewalk (including curb extensions),
driveway and ADA improvements along Houser Way between Williams Ave S and Wells Ave S.
Purpose:To enhance safety for pedestrians and bicyclists crossing at this intersection.
Project
Aspects:
Operations and Safety, Active Transportation
Status/
Changes:
The city was awarded a TIB Complete Streets grant in the amount of $500,000 in 2019. The
project is being constructed in coordination with Williams and Wells Ave S Conversion Project
(TIP#20-28).
Funding Status:
Fully Funded - CN
Planning:
Preliminary Engineering $200,000
ROW:$100,000
Construction:$700,000
Expenditures:
Priority Rank 10
For Projects, these expenditures are for the life of the project.
For Programs, they are the total expenditures programmed for
the 6 years in the TIP, 2021-2026
- 44 -
RESOLUTION NO. 4418 AGENDA ITEM #6. b)
Construction Cost EstimateBid TabABB ‐ AJune 29, 2021ENGINEER'S ESTIMATENo. Spec No. Description Quantity Unit Unit Cost TOTAL COST UNIT COST TOTAL COST UNIT COST TOTAL COST UNIT COST TOTAL COST UNIT COST TOTAL COST UNIT COST TOTAL COST SCHEDULE A ‐ ROADWAY IMPROVEMENTS1 1‐04Minor Change1EST25,000.00$ 25,000.00$ 25,000.00$ 25,000.00$ ‐$ 25,000.00$ 25,000.00$ 25,000.00$ 25,000.00$ 25,000.00$ 25,000.00$ 25,000.00$ 25,000.00$ 2 1‐05Roadway Surveying1 LS 13,600.00$ 13,600.00$ 12,500.00$ 12,500.00$ (1,100.00)$ 11,000.00$ 11,000.00$ 18,750.00$ 18,750.00$ 11,500.00$ 11,500.00$ 15,000.00$ 15,000.00$ 3 1‐05Record Drawings (Minimum Bid $1,000)1 LS 1,000.00$ 1,000.00$ 1,000.00$ 1,000.00$ ‐$ 1,000.00$ 1,000.00$ 1,500.00$ 1,500.00$ 1,000.00$ 1,000.00$ 1,000.00$ 1,000.00$ 4 1‐07SPCC Plan1 LS 800.00$ 800.00$ 500.00$ 500.00$ (300.00)$ 150.00$ 150.00$ 1,000.00$ 1,000.00$ 500.00$ 500.00$ 500.00$ 500.00$ 5 1‐09Mobilization1 LS 73,000.00$ 73,000.00$ 110,000.00$ 110,000.00$ 37,000.00$ 130,793.00$ 130,793.00$ 125,000.00$ 125,000.00$ 125,000.00$ 125,000.00$ 121,500.00$ 121,500.00$ 6 1‐10Project Temporary Traffic Control1 LS 91,000.00$ 91,000.00$ 90,000.00$ 90,000.00$ (1,000.00)$ 200,000.00$ 200,000.00$ 224,000.00$ 224,000.00$ 103,500.00$ 103,500.00$ 109,000.00$ 109,000.00$ 7 1‐10Traffic Control Supervisor1 LS 6,000.00$ 6,000.00$ 15,000.00$ 15,000.00$ 9,000.00$ 80,000.00$ 80,000.00$ 37,600.00$ 37,600.00$ 61,000.00$ 61,000.00$ 25,000.00$ 25,000.00$ 8 2‐02Removal of Structure and Obstruction1 LS 21,000.00$ 21,000.00$ 25,000.00$ 25,000.00$ 4,000.00$ 25,000.00$ 25,000.00$ 59,000.00$ 59,000.00$ 45,000.00$ 45,000.00$ 25,000.00$ 25,000.00$ 9 2‐03Roadway Excavation Incl. Haul740 CY 75.00$ 55,500.00$ 90.00$ 66,600.00$ 11,100.00$ 100.00$ 74,000.00$ 75.00$ 55,500.00$ 48.50$ 35,890.00$ 160.00$ 118,400.00$ 10 4‐04Crushed Surfacing Base Course610 TON 55.00$ 33,550.00$ 80.00$ 48,800.00$ 15,250.00$ 65.00$ 39,650.00$ 75.00$ 45,750.00$ 45.00$ 27,450.00$ 55.00$ 33,550.00$ 11 5‐04HMA Cl. 1/2" PG 64‐22520 TON 160.00$ 83,200.00$ 145.00$ 75,400.00$ (7,800.00)$ 150.00$ 78,000.00$ 154.38$ 80,277.60$ 165.00$ 85,800.00$ 135.00$ 70,200.00$ 12 5‐04Temporary Pavement70 TON 260.00$ 18,200.00$ 150.00$ 10,500.00$ (7,700.00)$ 350.00$ 24,500.00$ 250.00$ 17,500.00$ 244.00$ 17,080.00$ 350.00$ 24,500.00$ 13 7‐05Adjust Cleanout to Grade 1 EA 400.00$ 400.00$ 250.00$ 250.00$ (150.00)$ 625.00$ 625.00$ 100.00$ 100.00$ 575.00$ 575.00$ 800.00$ 800.00$ 14 7‐05Adjust Sewer Manhole 1 EA 800.00$ 800.00$ 1,000.00$ 1,000.00$ 200.00$ 625.00$ 625.00$ 2,500.00$ 2,500.00$ 575.00$ 575.00$ 1,000.00$ 1,000.00$ 15 8‐01Erosion Control and Water Pollution Prevention1 LS 15,300.00$ 15,300.00$ 2,500.00$ 2,500.00$ (12,800.00)$ 25,000.00$ 25,000.00$ 16,000.00$ 16,000.00$ 23,000.00$ 23,000.00$ 4,000.00$ 4,000.00$ 16 8‐02Protection of Private Property and Tree Protection1 LS 2,000.00$ 2,000.00$ 1,000.00$ 1,000.00$ (1,000.00)$ 1,000.00$ 1,000.00$ 2,000.00$ 2,000.00$ 3,900.00$ 3,900.00$ 2,500.00$ 2,500.00$ 17 8‐02Property Restoration1EST2,000.00$ 2,000.00$ 2,000.00$ 2,000.00$ ‐$ 2,000.00$ 2,000.00$ 2,000.00$ 2,000.00$ 2,000.00$ 2,000.00$ 2,000.00$ 2,000.00$ 18 8‐02Topsoil Type A16 CY 75.00$ 1,200.00$ 100.00$ 1,600.00$ 400.00$ 69.00$ 1,104.00$ 65.00$ 1,040.00$ 72.00$ 1,152.00$ 95.00$ 1,520.00$ 19 8‐02Bark or Wood Chip Mulch2 CY 100.00$ 200.00$ 150.00$ 300.00$ 100.00$ 67.00$ 134.00$ 65.00$ 130.00$ 70.00$ 140.00$ 70.00$ 140.00$ 20 8‐02PS Amelanchier laevis 'JFS‐ARB'/ Spring Flurry Serviceberry; 1 1/4" cal., 10'‐12' ht.2 EA 600.00$ 1,200.00$ 1,400.00$ 2,800.00$ 1,600.00$ 460.00$ 920.00$ 100.00$ 200.00$ 481.00$ 962.00$ 440.00$ 880.00$ 21 8‐02PS Fothergilla gardenii 'Blue Mist'/ Blue Mist Dwarf Fothergilla; 2 Gal. Cont.2 EA 35.00$ 70.00$ 20.00$ 40.00$ (30.00)$ 46.00$ 92.00$ 100.00$ 200.00$ 48.00$ 96.00$ 44.00$ 88.00$ 22 8‐02PS Hebe anomala 'Purpurea Nana'/ Dwarf Hebe18 EA 35.00$ 630.00$ 20.00$ 360.00$ (270.00)$ 46.00$ 828.00$ 100.00$ 1,800.00$ 48.00$ 864.00$ 44.00$ 792.00$ 23 8‐02PS Berberis thunbergii 'Admiration'/Admiration Barberry; 2 Gal .Cont4 EA 35.00$ 140.00$ 20.00$ 80.00$ (60.00)$ 46.00$ 184.00$ 100.00$ 400.00$ 48.00$ 192.00$ 44.00$ 176.00$ 24 8‐02PS Weigela florida 'Elvira'/ Midnight Wine Weigela; 2 Gal. Cont.18 EA 35.00$ 630.00$ 20.00$ 360.00$ (270.00)$ 46.00$ 828.00$ 100.00$ 1,800.00$ 48.00$ 864.00$ 44.00$ 792.00$ 25 8‐02PS Sesleria Autumnalis/ Autumn Moor Grass; 1 Gal. Cont.54 EA 35.00$ 1,890.00$ 15.00$ 810.00$ (1,080.00)$ 35.00$ 1,890.00$ 100.00$ 5,400.00$ 36.00$ 1,944.00$ 33.00$ 1,782.00$ 26 8‐02PS Erica carnea 'Myretoun Ruby'/ Myretoun Ruby Winter Heath; 1 Gal. Cont.30 EA 15.00$ 450.00$ 15.00$ 450.00$ ‐$ 35.00$ 1,050.00$ 100.00$ 3,000.00$ 36.00$ 1,080.00$ 33.00$ 990.00$ 27 8‐02Plant Establishment ‐ 1 Year 1 LS 5,000.00$ 5,000.00$ 1,700.00$ 1,700.00$ (3,300.00)$ 4,500.00$ 4,500.00$ 2,500.00$ 2,500.00$ 4,600.00$ 4,600.00$ 4,000.00$ 4,000.00$ 28 8‐04Cement Conc. Traffic Curb and Gutter230 LF 40.00$ 9,200.00$ 70.00$ 16,100.00$ 6,900.00$ 73.00$ 16,790.00$ 62.50$ 14,375.00$ 70.00$ 16,100.00$ 38.00$ 8,740.00$ 29 8‐04Cement Conc. Valley Curb480 LF 42.00$ 20,160.00$ 70.00$ 33,600.00$ 13,440.00$ 65.00$ 31,200.00$ 62.50$ 30,000.00$ 70.00$ 33,600.00$ 37.00$ 17,760.00$ 30 8‐04Extruded Curb100 LF 30.00$ 3,000.00$ 35.00$ 3,500.00$ 500.00$ 38.00$ 3,800.00$ 10.00$ 1,000.00$ 10.00$ 1,000.00$ 9.00$ 900.00$ 31 8‐14Thickened Edge Sidewalk480 LF 35.00$ 16,800.00$ 65.00$ 31,200.00$ 14,400.00$ 23.00$ 11,040.00$ 25.00$ 12,000.00$ 28.00$ 13,440.00$ 25.00$ 12,000.00$ 32 8‐14Cement Conc. Sidewalk 710 SY 75.00$ 53,250.00$ 90.00$ 63,900.00$ 10,650.00$ 65.00$ 46,150.00$ 50.00$ 35,500.00$ 56.00$ 39,760.00$ 84.00$ 59,640.00$ 33 8‐14Detectable Warning Surface210 SF 60.00$ 12,600.00$ 30.00$ 6,300.00$ (6,300.00)$ 23.00$ 4,830.00$ 25.00$ 5,250.00$ 48.00$ 10,080.00$ 55.00$ 11,550.00$ 34 8‐19Adjust Utility Vault to Grade 3 EA 950.00$ 2,850.00$ 1,500.00$ 4,500.00$ 1,650.00$ 600.00$ 1,800.00$ 1,500.00$ 4,500.00$ 575.00$ 1,725.00$ 1,200.00$ 3,600.00$ 35 8‐20Illumination System, Complete1 LS 102,000.00$ 102,000.00$ 150,000.00$ 150,000.00$ 48,000.00$ 140,000.00$ 140,000.00$ 187,487.50$ 187,487.50$ 141,000.00$ 141,000.00$ 127,600.00$ 127,600.00$ 36 8‐21'Permanent Signing 1 LS 17,000.00$ 17,000.00$ 10,000.00$ 10,000.00$ (7,000.00)$ 6,000.00$ 6,000.00$ 16,933.75$ 16,933.75$ 12,000.00$ 12,000.00$ 9,600.00$ 9,600.00$ 37 8‐22Removing Existing Pavement Markings1 LS 5,000.00$ 5,000.00$ 100.00$ 100.00$ (4,900.00)$ 4,000.00$ 4,000.00$ 4,721.25$ 4,721.25$ 4,600.00$ 4,600.00$ 4,000.00$ 4,000.00$ 38 8‐22Plastic Stop Line 70 LF 15.00$ 1,050.00$ 10.00$ 700.00$ (350.00)$ 15.00$ 1,050.00$ 8.13$ 569.10$ 8.00$ 560.00$ 7.00$ 490.00$ 39 8‐22Plastic Crosswalk Line 490 SF 12.00$ 5,880.00$ 10.00$ 4,900.00$ (980.00)$ 12.00$ 5,880.00$ 6.25$ 3,062.50$ 6.00$ 2,940.00$ 5.50$ 2,695.00$ 40 8‐22Plastic Line 390 LF 5.00$ 1,950.00$ 10.00$ 3,900.00$ 1,950.00$ 8.00$ 3,120.00$ 2.44$ 951.60$ 2.50$ 975.00$ 2.20$ 858.00$ 41 8‐23Temporary Pavement Marking550 LF 1.00$ 550.00$ 3.00$ 1,650.00$ 1,100.00$ 1.00$ 550.00$ 0.38$ 209.00$ 2.00$ 1,100.00$ 2.00$ 1,100.00$ 42 8‐27Waste Receptacle4 EA 2,000.00$ 8,000.00$ 2,500.00$ 10,000.00$ 2,000.00$ 2,800.00$ 11,200.00$ 1,000.00$ 4,000.00$ 2,650.00$ 10,600.00$ 2,700.00$ 10,800.00$ 43 8‐28Landscape Strip Fencing160 LF 250.00$ 40,000.00$ 150.00$ 24,000.00$ (16,000.00)$ 250.00$ 40,000.00$ 10.00$ 1,600.00$ 395.00$ 63,200.00$ 560.00$ 89,600.00$ 44 8‐30Bench4 EA 2,300.00$ 9,200.00$ 2,500.00$ 10,000.00$ 800.00$ 2,600.00$ 10,400.00$ 2,500.00$ 10,000.00$ 2,650.00$ 10,600.00$ 2,200.00$ 8,800.00$ 45 8‐31'Bike Rack4 EA 1,200.00$ 4,800.00$ 1,000.00$ 4,000.00$ (800.00)$ 1,000.00$ 4,000.00$ 2,500.00$ 10,000.00$ 825.00$ 3,300.00$ 3,500.00$ 14,000.00$ 46 8‐32'Vehicular Bollard 24 EA 3,500.00$ 84,000.00$ 3,000.00$ 72,000.00$ (12,000.00)$ 1,800.00$ 43,200.00$ 500.00$ 12,000.00$ 5,250.00$ 126,000.00$ 4,800.00$ 115,200.00$ 47 8‐35Resolution of Utility Conflicts1EST20,000.00$ 20,000.00$ 20,000.00$ 20,000.00$ ‐$ 20,000.00$ 20,000.00$ 20,000.00$ 20,000.00$ 20,000.00$ 20,000.00$ 20,000.00$ 20,000.00$ 48 8‐35Utility Potholing20 EA 700.00$ 14,000.00$ 650.00$ 13,000.00$ (1,000.00)$ 350.00$ 7,000.00$ 500.00$ 10,000.00$ 525.00$ 10,500.00$ 800.00$ 16,000.00$ 885,050.00$ 978,900.00$ 93,850.00$ 1,141,883.00$ 1,114,107.30$ 1,103,744.00$ 1,125,043.00$ 1,131,507.20$ SCHEDULE B‐ WATER IMPROVEMENTS1 7‐08Shoring or Extra Excavation Trench1 LS 10,000.00$ 10,000.00$ 1,500.00$ 1,500.00$ (8,500.00)$ 2,000.00$ 2,000.00$ 15,000.00$ 15,000.00$ 1,250.00$ 1,250.00$ 5,000.00$ 5,000.00$ 2 7‐09Remove or Abandon Existing Water System1 LS 5,000.00$ 5,000.00$ 1,500.00$ 1,500.00$ (3,500.00)$ 2,500.00$ 2,500.00$ 69,000.00$ 69,000.00$ 1,900.00$ 1,900.00$ 5,000.00$ 5,000.00$ 3 7‐09Removal and Replacement of Unsuitable Foundation Material50 CY 100.00$ 5,000.00$ 100.00$ 5,000.00$ ‐$ 150.00$ 7,500.00$ 100.00$ 5,000.00$ 127.00$ 6,350.00$ 50.00$ 2,500.00$ 4 7‐09Furnish and Install 12 In. Diam. Ductile Iron Pipe for Water Main & Fittings190 LF 250.00$ 47,500.00$ 300.00$ 57,000.00$ 9,500.00$ 270.00$ 51,300.00$ 150.00$ 28,500.00$ 224.00$ 42,560.00$ 319.00$ 60,610.00$ 5 7‐09Bank Run Gravel for Trench Backfill190 TON 34.00$ 6,460.00$ 50.00$ 9,500.00$ 3,040.00$ 55.00$ 10,450.00$ 100.00$ 19,000.00$ 46.00$ 8,740.00$ 40.00$ 7,600.00$ 6 7‐09Connection to Existing Water Main2 EA 10,000.00$ 20,000.00$ 5,000.00$ 10,000.00$ (10,000.00)$ 9,500.00$ 19,000.00$ 2,500.00$ 5,000.00$ 8,500.00$ 17,000.00$ 8,500.00$ 17,000.00$ 7 7‐09Concrete Thrust Blocking and Dead‐Man Anchor Blocks5 CY 500.00$ 2,500.00$ 200.00$ 1,000.00$ (1,500.00)$ 650.00$ 3,250.00$ 200.00$ 1,000.00$ 640.00$ 3,200.00$ 3,000.00$ 15,000.00$ 8Furnish and Install 6 In. Gate Valve Assembly1 EA 2,900.00$ 2,900.00$ 2,000.00$ 2,000.00$ (900.00)$ 2,250.00$ 2,250.00$ 7,500.00$ 7,500.00$ 1,800.00$ 1,800.00$ 1,800.00$ 1,800.00$ 9 7‐12Furnish and Install 12 In. Gate Valve Assembly1 EA 3,200.00$ 3,200.00$ 3,000.00$ 3,000.00$ (200.00)$ 4,500.00$ 4,500.00$ 10,000.00$ 10,000.00$ 3,650.00$ 3,650.00$ 2,700.00$ 2,700.00$ 10 7‐12Adjust Existing Water Valve Box to Grade (RC)5 EA 500.00$ 2,500.00$ 250.00$ 1,250.00$ (1,250.00)$ 450.00$ 2,250.00$ 1,000.00$ 5,000.00$ 480.00$ 2,400.00$ 700.00$ 3,500.00$ 11 7‐14Furnish and Install Hydrant Assembly1 EA 7,500.00$ 7,500.00$ 8,500.00$ 8,500.00$ 1,000.00$ 11,000.00$ 11,000.00$ 10,000.00$ 10,000.00$ 6,850.00$ 6,850.00$ 8,000.00$ 8,000.00$ 12 7‐14Furnish and Install 1.5 In. Water Service Connection2 EA 5,800.00$ 11,600.00$ 5,000.00$ 10,000.00$ (1,600.00)$ 6,000.00$ 12,000.00$ 1,000.00$ 2,000.00$ 4,800.00$ 9,600.00$ 4,500.00$ 9,000.00$ 13 7‐15Adjust Existing Water Meter Box to Grade 1 EA 600.00$ 600.00$ 300.00$ 300.00$ (300.00)$ 450.00$ 450.00$ 1,000.00$ 1,000.00$ 425.00$ 425.00$ 750.00$ 750.00$ 14 7‐15Temporary Water Bypass System, Complete 1 EA 5,000.00$ 5,000.00$ 1,500.00$ 1,500.00$ (3,500.00)$ 5,000.00$ 5,000.00$ 25,000.00$ 25,000.00$ 3,000.00$ 3,000.00$ 15,000.00$ 15,000.00$ 129,760.00$ 112,050.00$ (17,710.00)$ .133,450.00$ 203,000.00$ 108,725.00$ 153,460.00$ $ 13,105.7611,317.05$ (1,788.71)$ 13,478.45$ 20,503.00$ 10,981.23$ 15,499.46$ $ 142,865.76123,367.05$ (19,498.71)$ 146,928.45$ 223,503.00$ 119,706.23$ 168,959.46$ SCHEDULE C ‐ STORM DRAINAGE IMPROVEMENTS1 7‐01'Drain Pipe 4 in. Diam30 LF 65.00$ 1,950.00$ 50.00$ 1,500.00$ (450.00)$ 40.00$ 1,200.00$ 100.00$ 3,000.00$ 48.00$ 1,440.00$ 60.00$ 1,800.00$ 2 7‐04'Ductile Iron Storm Sewer Pipe 8 In. Diam290 LF 120.00$ 34,800.00$ 65.00$ 18,850.00$ (15,950.00)$ 100.00$ 29,000.00$ 125.00$ 36,250.00$ 86.00$ 24,940.00$ 125.00$ 36,250.00$ 3 7‐04'Bank Run Gravel for Trench Backfill Storm 25 TON 34.00$ 850.00$ 50.00$ 1,250.00$ 400.00$ 45.00$ 1,125.00$ 75.00$ 1,875.00$ 52.00$ 1,300.00$ 45.00$ 1,125.00$ 4 7‐05'Shallow Concrete Inlet 1 EA 1,400.00$ 1,400.00$ 5,000.00$ 5,000.00$ 3,600.00$ 1,600.00$ 1,600.00$ 2,500.00$ 2,500.00$ 1,450.00$ 1,450.00$ 1,500.00$ 1,500.00$ 5 7‐05'Catch Basin Type 16 EA 1,800.00$ 10,800.00$ 5,000.00$ 30,000.00$ 19,200.00$ 1,850.00$ 11,100.00$ 2,500.00$ 15,000.00$ 1,450.00$ 8,700.00$ 1,800.00$ 10,800.00$ 6 7‐05'Adjust Drainage Structure 12 EA 600.00$ 7,200.00$ 500.00$ 6,000.00$ (1,200.00)$ 600.00$ 7,200.00$ 1,000.00$ 12,000.00$ 575.00$ 6,900.00$ 900.00$ 10,800.00$ 7 7‐05'Connection to Drainage Structure 7 EA 800.00$ 5,600.00$ 500.00$ 3,500.00$ (2,100.00)$ 1,400.00$ 9,800.00$ 1,000.00$ 7,000.00$ 1,700.00$ 11,900.00$ 1,000.00$ 7,000.00$ 8 7‐05'Furnish and Install Rectangular Solid Metal Cover2 EA 700.00$ 1,400.00$ 500.00$ 1,000.00$ (400.00)$ 1,150.00$ 2,300.00$ 2,500.00$ 5,000.00$ 925.00$ 1,850.00$ 700.00$ 1,400.00$ 9 7‐05'Furnish and Install Bi‐Directional Locking Vaned Grate1 EA 700.00$ 700.00$ 500.00$ 500.00$ (200.00)$ 1,350.00$ 1,350.00$ 5,000.00$ 5,000.00$ 925.00$ 925.00$ 800.00$ 800.00$ 64,700.00$ 67,600.00$ 2,900.00$ 64,675.00$ 87,625.00$ 59,405.00$ 71,475.00$ 64,700.00$ 67,600.00$ 2,900.00$ 64,675.00$ 87,625.00$ 59,405.00$ 71,475.00$ 1,092,615.76$ 1,169,867.05$ 77,251.29$ 1,353,486.45$ 1,425,235.30$ 1,282,855.23$ 1,365,477.46$ 1,092,615.76$ 1,169,867.05$ 77,251.29$ 1,353,486.45$ 1,425,235.30$ 1,282,855.23$ 1,365,477.46$ 1,169,755.00$ 1,353,353.00$ 1,442,432.20$ 1,282,746.50$ 1,365,324.00$ NORDVIND COMPANY, ESTIMATE NORTHWEST CASCADE INC, ESTIMATE R.W. SCOTT CONSTRUCTION, ESTIMATE Schedule A ‐ Roadway Improvements Subtotal Subtotal Schedule B WESTWATER CONSTRUCTION, ESTIMATE (LOW BIDDER) ACTIVE CONSTRUCTION INC, ESTIMATE Total Construction Cost (Schedule A+ B + C) According to Bid ProposalHouser Way Intersection and Pedestrian Improvements Schedule B ‐ Water Improvements Subtotal Subtotal Schedule CSCHEDULE C ‐ Storm Drainage ImprovementsTotal Roadway Improvements Cost (Schedule A+B+C)Total Construction Cost (Schedule A+ B + C)Sales Tax (10.1%)AGENDA ITEM #6. b)
LNI Doing Business As (DBA) n/a
WA UBI No. 601 173 970
License No. WestWCC110kd
Entity Type. Profit Corporation
RCW or Spec Section Item Description Determination
SP 1‐02.1 (& 1‐02.14)
Qualifications of Bidder ‐ Before award of a public works contract, a bidder must
meet at least the minimum qualifications of RCW 39.04.350(1) to be considered
a responsible bidder and qualified to be awarded a public works project.
Criteria Met (below)
RCW 39.04.350(1) 1
Before award of a public works contract, a bidder must meet the following
responsibility criteria to be considered a responsible bidder and qualified to be
awarded a public works project. The bidder must:
Criteria Met (below)
a At time of bid submittal, have certificate of registration in compliance with
chapter 18.27 RCW Criteria Met
b Have a current state unified business identified number; Criteria Met
c
If applicable, have industrial insurance coverage for the bidder's employees
working in Washington as required in Title 51 RCW; an employment security
department number as required in Title 50 RCW; and a state excise tax
registration number as required in Title 82 RCW;
Criteria Met
d Not be disqualified from bidding on any public works contract under RCW
39.06.010 or 39.12.065(3);Criteria Met
e
If bidding on a public works project subject to the apprenticeship utilization
requirements in RCW 39.04.320, not have been found out of compliance by the
Washington state apprenticeship and training council for working apprentices
out of ration, without appropriate supervision, or outside their approved work
processes as outlined in their standards of apprenticeship under chapeter 49.04
RCW for the one‐year period immediately preceding the date of the bid
solicitation;
Criteria Met
f
Have received training on the requirements related to public works and
prevailing wage under this chapter and chapter 39.12 RCW. The bidder must
designate a person or persons to be trained on these requirements. The training
must be provided by the department of labor and industries or by a training
provider whose curriculum is approved by the department. The department, in
consultation with the prevailing wage advisory committee, must determine the
length of the training. Bidders that have completed three or more public works
projects and have had a valid business license in Washington for three or more
years are exempt from this subsection. The department of labor and industries
must keep records of entities that have satisfied the training requirement or are
exempt and make the records available on its web site. Responsible parties may
rely on the records made available by the department regarding satisfaction of
the training requirement or exemption; and
n/a ‐ Wastewater has
performed close to 100 public
works projects
g
Within the three‐year period immediately preceding the date of the bid
solicitation, not have been determined by a final and binding citation and notice
of assessment issued by the department of labor and industries or through a civil
judgement entered by a court of limited or general jurisdiction to have willfully
violated, as defined in RCW 49.48.082, any provision of chapter 49.46, 49.48, or
49.52 RCW.
Criteria Met
CAG‐21‐003
Exhibit 1
Bidder: Westwater Construction Company
Evaluation of Bidder
Houser Way Intersection and Pedestrian Improvements Project
Entity Name Registered with Secretary of State Westwater Construction Company
AGENDA ITEM #6. b)
SP 1‐02.5
Proposal Forms ‐ The bidder shall complete spaces on the proposal form that
call for, but are not limited to, unit prices; extensions; summations; the total bid
amount; signatures; date; and, where applicable, retail sales taxes and
acknowledgment of addenda; the bidder's name, address, telephone number,
and singature; a State of Washington Contractor's Registration Number; and a
Business License Number.
Criteria Met
SP 1‐02.6
Preparation of Proposal ‐ The Bidder shall submit with their Bid a completed
Contractor Certification Wage Law Compliance form, provided by the
Contracting Agency.
Criteria Met
SP 1‐02.6(1)
Recycled Materials Proposal ‐ The Bidder shall submit with the Bid, its proposal
for incorporating recycled materials into the project, using the form provided in
the Contract Provisions.
Criteria Met
SP 1‐02.7 Bid Deposit ‐ Bidder must use the bond form included in the Contract Provisions Criteria Met
SP 1‐08 Non‐Collusion Declaration and Lobbying Certification
forms submitted Criteria Met
SP 1‐02.13 Irregular Proposals
1 A Proposal will be considered irregular and will be rejected if: Criteria Met (below)
a The Bidder is not prequalified when so required; n/a
b The authorized Proposal form furnished by the Contracting Agency is not used or
is altered;Criteria Met
c The completed Proposal form contains any unauthorized additions, deletions,
alternate Bids, or conditions;Criteria Met
d The Bidder adds provisions reserving the right to reject or accept the award, or
enter into the Contract;Criteria Met
e A price per unit cannot be determined from the Bid Proposal; Criteria Met
f The Proposal form is not properly executed; Criteria Met
g The Bidder fails to submit or properly complete a Subcontractor list, if
applicable, as required in Section 1‐02.6;Criteria Met
h The Bidder fails to submit or properly complete a Disadvantaged Business
Enterprise Certification, if applicable, as required in Section 1‐02.6;n/a
i
The Bidder fails to submit written confirmation from each DBE firm listed on the
Bidder's completed DBE Utilization Certification that they are in agreement with
the bidders DBE participation commitment, if applicable as required in Section 1‐
02.6, or if the written confirmation that is submitted fails to meet the
requirements of the Special Provisions;
n/a
j
The Bidder fails to submit DBE Good Faith Effort documentation, if applicable, as
required in Section 1‐02.6, or if the documentation that is submitted fails to
demonstrate that a Good Faith Effort to meet the Condition of Award was made;
n/a
k
The Bidder fails to submit a DBE Bid Item Breakdown form, if applicable, as
required in Section 1‐02.6, or if the documentation that is submitted fails to
meet the requirements of the Special Provisions;
n/a
l
The Bidder fails to submit DBE Trucking Credit Forms, if applicable, as required in
Section 1‐02.6, or if the documentation that is submitted fails to meet the
requirements of the Special Provisions;
n/a
m The Bid Proposal does not constitute a definite and unqualified offer to meet the
material terms of the Bid invitation; or Criteria Met
n More than one Proposal is submitted for the same project from a Bidder under
the same or different names.Criteria Met
2 A Proposal may be considered irregular and will be rejected if:
a The Proposal does not include a unit price for every Bid item;Criteria Met
b
Any of the unit prices are excessively unbalanced (either above or below the
amount of a reasonable Bid) to the potential detriment of the Contracting
Agency;
Criteria Met
c Receipt of Addenda is not acknowledged; Criteria Met
d
A member of a joint venture or partnership and the joint venture or partnership
submit Proposals for the same project (in such an instance, both Bids may be
rejected); or
Criteria Met
e If Proposal form entries are not made in ink. Criteria Met
AGENDA ITEM #6. b)
SP 1‐02.14
Disqualification of Bidders ‐ The Contracting Agency will verify that the Bidder
meets the mandatory bidder resopnsibility criteria in RCW 39.04.350(1), and
Supplemental Criteria 1‐2. Evidence that the Bidder meets Supplemental
Criteria 3‐7 shall be provided by the Bidder later, if required.
Criteria Met
1
Delinquent State Taxes ‐ The Bidder shall not owe delinquent taxes to the
Washington State Department of Revenue without a payment plan approved by
the Department of Revenue.
Criteria Met
2 Federal Debarment ‐ The Bidder shall not currently be debarred or suspended by
the Federal government.Criteria Met
3 Subcontractor Responsibility ‐ RCW 39.06.020 Verification of subcontractor
responsibility criteria.(not requested)
4
Claims Against Retainage and Bonds ‐ The Bidder shall not have a record of
excessive claims filed against the retainage or payment bonds for public works
projects in the three years prior to the bid submittal date, that demonstrate a
lack of effective management by the Bidder of making timely and appropriate
payments to its subcontractors, suppliers, and workers, unless there are
extenuating circumstances and such circumstances are deemed acceptable to
the Contracting Agency.
(not requested)
5
Public Bidding Crime ‐ The Bidder and/or its owners shall not have been
convicted of a crime involving bidding on a public works contract in the five
years prior to the bid submittal date.
(not requested)
6
Termination for Cause / Termination for Default ‐ The Bidder shall not have had
any public works contract terminated for cause or terminated for default by a
government agency in the five years prior to the bid submittal date, unless there
are extenuating circumstances and such circumstances are deemed acceptable
to the Contracting Agency.
(not requested)
7
Lawsuits ‐ The Bidder shall not have lawsuits with judgments entered against the
Bidder in the five years prior to the bid submittal date that demonstrate a
pattern of failing to meet the terms of contracts, unless there are extenuating
circumstances and such circumstances are deemed acceptable to the
Contracting Agency.
(not requested)
SP 1‐03.1 Consideration of Bids
No irregularities in unit prices Criteria Met
AGENDA ITEM #6. b)
AGENDA ITEM #6. b)
AGENDA ITEM #6. b)
AGENDA ITEM #6. b)
AGENDA ITEM #6. b)
AGENDA ITEM #6. b)
1,169,867.05
AGENDA ITEM #6. b)
AGENDA ITEM #6. b)
AGENDA ITEM #6. b)
AGENDA ITEM #6. b)
AGENDA ITEM #6. b)
AGENDA ITEM #6. b)
123,367.05
1,169,867.05
AGENDA ITEM #6. b)
AGENDA ITEM #6. b)
AGENDA ITEM #6. b)
AGENDA ITEM #6. b)
AGENDA ITEM #6. b)
AGENDA ITEM #6. b)
AGENDA ITEM #6. b)
AGENDA ITEM #6. b)
AGENDA ITEM #6. b)
AGENDA ITEM #6. b)
AGENDA ITEM #6. b)
AGENDA ITEM #6. b)
AGENDA ITEM #6. b)
AGENDA ITEM #6. b)
CityofRentonContractProvisionsforHouserWayIntersectionandPedestrianImprovementsProjectIV.AGREEMENTFORMSContractDocumentsPage25HouserWayIntersectionandPedestrianImprovementsProjectApril2021ProvidedtoBuildersExchangeofWA,Inc.ForusageConditionsAgreementseewww.bxwa.com-AlwaysVerifyScalAGENDA ITEM #6. b)
AGREEMENTCONTRACTNO.CAG-21-003THISAGREEMENT,madeandenteredintothis7thdayofJune,2021byandbetweenTHECITYOFRENTON,Washington,amunicipalcorporationoftheStateofWashington,hereinafterreferredtoas“City”andWESTWATERCONSTRUCTIONCOMPANYhereinafterreferredtoas“Contractor.”WITNESSETH:Thatinconsiderationofthetermsandconditionscontainedhereinandattachedandmadeapartofthisagreement,thepartiesheretocovenantandagreeasfollows:1.TheContractorshalldoallworkandfurnishalltools,materials,andequipmentfor:HouserWayIntersectionandPedestrianImprovementsProjectinaccordancewithandasdescribedintheattachedplansandspecifications,andthe2021StandardSpecificationsforRoad,Bridge,andMunicipalConstruction,aspreparedbytheWashingtonStateDepartmentofTransportation(WSDOT)andtheWashingtonStateChapteroftheAmericanPublicWorksAssociation(APWA)whicharebythisreferenceincorporatedhereinandmadepartofhereofand,shallperformanychangesintheworkinaccordwiththeContractDocuments.TheContractorshallprovideandbeartheexpenseofallequipment,workandlabor,ofanysortwhatsoeverthatmayberequiredforthetransferofmaterialsandforconstructingandcompletingtheworkprovidedforintheseContractDocumentsexceptthoseitemsmentionedthereintobefurnishedbytheCity.2.TheCityherebypromisesandagreeswiththeContractortoemploy,anddoesemploytheContractortoprovidethematerialsandtodoandcausetobedonetheabovedescribedworkandtocompleteandfurnishthesameinaccordwiththeattachedplansandspecificationsandthetermsandconditionshereincontainedandherebycontractstopayforthesameaccordingtotheattachedspecificationsandthescheduleofunitoritemizedpricesatthetimeandinthemannerandupontheconditionsprovidedforinthiscontract.ThesumtotalofallprogresspaymentsisnottoexceedtheTotalBidAmountlistedintheScheduleofPricesincorporatedintothiscontract,unlesstheTotalBidAmountisamendedbychangeorder(s)preparedandexecutedinaccordancewiththeseContractDocuments.3.TheContractorforhimself/herself,andforhis/herheirs,executors,administrators,successors,andassigns,doesherebyagreetofullperformanceofallcovenantsrequiredoftheContractorinthecontract.4.ItisfurtherprovidedthatnoliabilityshallattachtotheCitybyreasonofenteringintothiscontract,exceptasprovidedherein.5.Intheeventlitigationiscommencedtoenforcethiscontract,theprevailingpartyshallbeentitledtorecoveritscosts,includingreasonableattorney’sandexpertwitnessfees.ContractDocumentsPage26HouserWayIntersectionandPedestrianImprovementsProjectMarch2021ProvidedtoBuildersExchangeofWA,Inc.ForusageConditionsAgreementseewww.bxwa.com-AlwaysVerifyScalAGENDA ITEM #6. b)
6.ThisContractisexecutedintwo(2)identicalcounterparts,bythepatties,eachofwhichshallforallpurposesbedeemedanoriginal.INWITNESSWHEREOF,theContractorhasexecutedthisinstrument,onthedayandyearfirstbelowwrittenandtheMayorhascausedthisinstrumenttobeexecutedbyandinthenameoftheCityofRentonthedayandyearfirstabovewritten.CONTRACTORCITYOFRENTON2E2___[Signaturiiz’OfficiaIJ*ArmondoPavone,MayorMICHAELJCAPLIS-PRESIDENTATTEST[Title]WESTWATERCONSTRUCTIONCOMPANY[BusinessName]JasonSeth,CityClerk6/7/2021[Date]*NOTE:Evidenceofthesignatory’sauthoritytosigntheAgreementonbehalfofthebusinessentityshallbesubmitted.CONTRACTORADDRESSFORGIVINGNOTICESCITYOFRENTONADDRESSFORGIVINGNOTICESWESTWATERCONSTRUCTIONCOMPANYTransportationSystemsDivisionP0BOX59237RentonCityHall—5thFloorRENTON,WA980581055SouthGradyWay___________________________________________Renton,WA98057ContractDocumentsPage27HouserWayIntersectionandPedestrianImprovementsProjectMarch2021ProvidedtoBuildersExchangeofWA,Inc.ForusageConditionsAgreementseewww.bxwa.com-AlwaysVerifyScalAGENDA ITEM #6. b)
AGREEMENTCONTRACTNO.CAG-21-003THISAGREEMENT,madeandenteredintothis7thdayofJune,2021byandbetweenTHECITYOFRENTON,Washington,amunicipalcorporationoftheStateofWashington,hereinafterreferredtoas“City”andWESTWATERCONSTRUCTIONCOMPANYhereinafterreferredtoas“Contractor.”WITNESSETH:Thatinconsiderationofthetermsandconditionscontainedhereinandattachedandmadeapartofthisagreement,thepartiesheretocovenantandagreeasfollows:1.TheContractorshalldoallworkandfurnishalltools,materials,andequipmentfor:HouserWayIntersectionandPedestrianImprovementsProjectinaccordancewithandasdescribedintheattachedplansandspecifications,andthe2021StandardSpecificationsforRoad,Bridge,andMunicipalConstruction,aspreparedbytheWashingtonStateDepartmentofTransportation(WSDOT)andtheWashingtonStateChapteroftheAmericanPublicWorksAssociation(APWA)whicharebythisreferenceincorporatedhereinandmadepartofhereofand,shallperformanychangesintheworkinaccordwiththeContractDocuments.TheContractorshallprovideandbeartheexpenseofallequipment,workandlabor,ofanysortwhatsoeverthatmayberequiredforthetransferofmaterialsandforconstructingandcompletingtheworkprovidedforintheseContractDocumentsexceptthoseitemsmentionedthereintobefurnishedbytheCity.2.TheCityherebypromisesandagreeswiththeContractortoemploy,anddoesemploytheContractortoprovidethematerialsandtodoandcausetobedonetheabovedescribedworkandtocompleteandfurnishthesameinaccordwiththeattachedplansandspecificationsandthetermsandconditionshereincontainedandherebycontractstopayforthesameaccordingtotheattachedspecificationsandthescheduleofunitoritemizedpricesatthetimeandinthemannerandupontheconditionsprovidedforinthiscontract.ThesumtotalofallprogresspaymentsisnottoexceedtheTotalBidAmountlistedintheScheduleofPricesincorporatedintothiscontract,unlesstheTotalBidAmountisamendedbychangeorder(s)preparedandexecutedinaccordancewiththeseContractDocuments.3.TheContractorforhimself/herself,andforhis/herheirs,executors,administrators,successors,andassigns,doesherebyagreetofullperformanceofallcovenantsrequiredoftheContractorinthecontract.4.ItisfurtherprovidedthatnoliabilityshallattachtotheCitybyreasonofenteringintothiscontract,exceptasprovidedherein.5.Intheeventlitigationiscommencedtoenforcethiscontract,theprevailingpartyshallbeentitledtorecoveritscosts,includingreasonableattorney’sandexpertwitnessfees.ContractDocumentsPage26HouserWayIntersectionandPedestrianImprovementsProjectMarch2021ProvidedtoBuildersExchangeofWA,Inc.ForusageConditionsAgreementseewww.bxwa.com-AlwaysVerifyScalAGENDA ITEM #6. b)
6.ThisContractisexecutedintwo(2)identicalcounterparts,bytheparties,eachofwhichshallforallpurposesbedeemedanoriginal.INWITNESSWHEREOF,theContractorhasexecutedthisinstrument,onthedayandyearfirstbelowwrittenandtheMayorhascausedthisinstrumenttobeexecutedbyandinthenameoftheCityofRentonthedayandyearfirstabovewritten.CONTRACTORCITYOFRENTON[SignatituthorizedOfficial]*ArmondoPavone,MayorMICHAELJCAPLIS-PRESIDENT[Title]WESTWATERCONSTRUCTIONCOMPANY[BusinessName]6/7/2021[Date]JasonSeth,CityClerkATTEST*NOTE:Evidenceofthesignatory’sauthoritytosigntheAgreementonbehalfofthebusinessentityshallbesubmitted.CONTRACTORADDRESSFORGIVINGNOTICESWESTWATERCONSTRUCTIONCOMPANYCITYOFRENTONADDRESSFORGIVINGNOTICESTransportationSystemsDivisionP0BOX59237RentonCityHall—5thFloorRENTON,WA980581055SouthGradyWayRenton,WA98057ContractDocumentsHouserWayIntersectionandPedestrianImprovementsProjectPage27March2021ProvidedtoBuildersExchangeofWA,Inc.ForusageConditionsAgreementseewww.bxwa.com-AlwaysVerifyScalAGENDA ITEM #6. b)
AGREEMENTCONTRACTNO.CAG-21-003THISAGREEMENT,madeandenteredintothis7thdayofJune,2021byandbetweenTHECITYOFRENTON,Washington,amunicipalcorporationoftheStateofWashington,hereinafterreferredtoas“City”andWESTWATERCONSTRUCTIONCOMPANYhereinafterreferredtoas“Contractor.”WITNESSETH:Thatinconsiderationofthetermsandconditionscontainedhereinandattachedandmadeapartofthisagreement,thepartiesheretocovenantandagreeasfollows:1.TheContractorshalldoallworkandfurnishalltools,materials,andequipmentfor:HouserWayIntersectionandPedestrianImprovementsProjectinaccordancewithandasdescribedintheattachedplansandspecifications,andthe2021StandardSpecificationsforRoad,Bridge,andMunicipalConstruction,aspreparedbytheWashingtonStateDepartmentofTransportation(WSDOT)andtheWashingtonStateChapteroftheAmericanPublicWorksAssociation(APWA)whicharebythisreferenceincorporatedhereinandmadepartofhereofand,shallperformanychangesintheworkinaccordwiththeContractDocuments.TheContractorshallprovideandbeartheexpenseofallequipment,workandlabor,ofanysortwhatsoeverthatmayberequiredforthetransferofmaterialsandforconstructingandcompletingtheworkprovidedforintheseContractDocumentsexceptthoseitemsmentionedthereintobefurnishedbytheCity.2.TheCityherebypromisesandagreeswiththeContractortoemploy,anddoesemploytheContractortoprovidethematerialsandtodoandcausetobedonetheabovedescribedworkandtocompleteandfurnishthesameinaccordwiththeattachedplansandspecificationsandthetermsandconditionshereincontainedandherebycontractstopayforthesameaccordingtotheattachedspecificationsandthescheduleofunitoritemizedpricesatthetimeandinthemannerandupontheconditionsprovidedforinthiscontract.ThesumtotalofallprogresspaymentsisnottoexceedtheTotalBidAmountlistedintheScheduleofPricesincorporatedintothiscontract,unlesstheTotalBidAmountisamendedbychangeorder(s)preparedandexecutedinaccordancewiththeseContractDocuments.3.TheContractorforhimself/herself,andforhis/herheirs,executors,administrators,successors,andassigns,doesherebyagreetofullperformanceofallcovenantsrequiredoftheContractorinthecontract.4.ItisfurtherprovidedthatnoliabilityshallattachtotheCitybyreasonofenteringintothiscontract,exceptasprovidedherein.5.Intheeventlitigationiscommencedtoenforcethiscontract,theprevailingpartyshallbeentitledtorecoveritscosts,includingreasonableattorney’sandexpertwitnessfees.ContractDocumentsPage26HouserWayIntersectionandPedestrianImprovementsProjectMarch2021ProvidedtoBuildersExchangeofWA,Inc.ForusageConditionsAgreementseewww.bxwa.com-AlwaysVerifyScalAGENDA ITEM #6. b)
6.ThisContractisexecutedintwo(2)identicalcounterparts,bytheparties,eachofwhichshallforallpurposesbedeemedanoriginal.INWITNESSWHEREOF,theContractorhasexecutedthisinstrument,onthedayandyearfirstbelowwrittenandtheMayorhascausedthisinstrumenttobeexecutedbyandinthenameoftheCityofRentonthedayandyearfirstabovewritten.CONTRACTORCITYOfRENTON[SignatAutrizOfficial]*ArmondoPavone,MayorMICHAELJCAPLIS-PRESIDENT[Title]ATTESTWESTWATERCONSTRUCTIONCOMPANY[BusinessNameJ6/7/2021[Date]JasonSeth,CityClerk*NOTE:Evidenceofthesignatory’sauthoritytosigntheAgreementonbehalfofthebusinessentityshallbesubmitted.CONTRACTORADDRESSFORGIVINGNOTICESWESTWATERCONSTRUCTIONCOMPANYCITYOFRENTONADDRESSFORGIVINGNOTICESTransportationSystemsDivisionP0BOX59237RentonCityHall—5thFloorRENTON,WA980581055SouthGradyWayRenton,WA98057ContractDocumentsHouserWayIntersectionandPedestrianImprovementsProjectPage27March2021ProvidedtoBuildersExchangeofWA,Inc.ForusageConditionsAgreementseewww.bxwa.com-AlwaysVerifyScalAGENDA ITEM #6. b)
CERTIFICATEASTOENTITYPRINCIPALPRESIDENTbehalfoftheContractor,isthePRESIDENTagreementwasdulysignedonandinbehalfofsaidandiswithinthescopeofitspowers.StateofWACountyofKING)ss.________certifythatIamoftheEntitynamedashereto,____
____whosignedsaidagreementonofsaidentity;thatsaidentitybyauthorityofitsgoverningpersons,MICHAELJCAPLIS•beingdutysworndeposesandsaysthathe/sheisPRESIDENT(Title)ofWESTWATERCONSTRUCTIONCOMPANY(NameofEntity)Subscribedandsworntobeforemethisjj.dayofSAMBcISNotaryPublicstatefWashington)>MyAppointmentExpireS0112512023)ssionNum2MICHAELJCAPLIStheContractorintheagreementMIflHAPI.1flAPIISattachedthatByJUNE-,2ONotaryPublicMELISSAMBCAPLISMycommissionexpiresJANUARY252OAGENDA ITEM #6. b)
CONTRACTBONDTOTHECITYOFRENTONBondNo.WAC55521KNOWALLMENBYTHESEPRESENTS,Thatwe,[Contractor]WESTWATERCONSTRUCTIONCOMPANYof[address]16209SE173RDPL.RENTON,WA98058asPrincipal,and[Surety]MerchantsBondingCompany(Mutual)acorporationorganizedandexistingunderthelawsoftheStateofIowaasasuretycorporation,andqualifiedunderthelawsoftheStateofWashingtontobecomesuretyuponbondsofcontractorswithmunicipalcorporations,asSurety,arejointlyandseverallyheldandfirmlyboundtotheCityofRenton(City)inthepenalsumof$$1,169,755.00TotalContractAmount,forthepaymentofwhichsumondemandwebindourselvesandourheirs,executors,administratorsandassigns,successorsandassigns,orpersonrepresentatives,asthecasemaybe.ThisobligationisenteredintopursuanttothestatutesoftheStateofWashington.DatedatSeattle,Washington,this3rddayofJune20_21Nevertheless,theconditionsoftheaboveobligationaresuchthat:WHEREAS,underandpursuanttoContractNo.CAG-21-003providingforconstructionoftheHouserWayIntersectionandPedestrianImprovementsProject;thePrincipalhasaccepted,orisabouttoaccept,theContract,andundertaketoperformtheWorkthereinprovidedforinthemannerandwithinthetimesetforth.NOW,THEREFORE,byexecutingthisContractBond,acombinedPerformanceandPaymentBond,SuretyindemnifiesandholdstheCity,itsofficers,agentsandassignsharmlessfromallclaims,liabilities,causesofaction,damagesandcosts,includingpropertydamagesandpersonalinjuries,resultingfromanydefectappearingordevelopinginthematerialprovidedorworkmanshipperformedundertheContractANDforsuchpaymentsforlabor,equipment,andmaterialsbysatisfyingallclaimsanddemandsincurredundertheContract,andreimbursingandpayingCityallexpensesthatCitymayincurinmakinggoodanydefaultbyPrincipal.FUTHERMORE,thisContractBondshallbesatisfiedandreleasedonlyupontheconditionsthatPrincipal:•FaithfullyperformsallprovisionsoftheContractandchangesauthorizedbyCityinthemannerandwithinthetimespecifiedasmaybeextendedundertheContract;•Faithfullyandpromptlypay,inaccordancewithChapters39.08,39.12and60.2$RevisedCodeofWashington(RCW),thesumsdueallworkers,laborers,mechanics,subcontractors,lowertiersubcontractors,materialsuppliers,andallotherpersonsoragentswhosupplylabor,equipment,ormaterialsforcarryingonofsuchworkundertheContract;•Faithfullyandpromptlypayalltaxes,increasesandpenalties,ifany,incurredonorrelatedtotheContractunderTitles50and51RevisedCodeofWashington(RCW)andanyandalltaxesimposedonthePrincipleunderTitle82RCWoranyotherlaw;•ReceivesawrittendischargefromCity,signedbytheMayororbyadulyauthorizedrepresentativeofCity.ContractDocumentsPage28HouserWayIntersectionandPedestrianImprovementsProjectMarch2021AGENDA ITEM #6. b)
Nochange,extensionoftime,alteration,oradditiontothetermsoftheContractortotheWorktobeperformedundertheContractshallinanywayaffectSurety’sobligationontheContractBond.Surety,forvaluereceived,herebywaivesnoticeofanychange,extensionoftime,alteration,oradditiontothetermsoftheContractortheWorktobeperformedthereunderandagreesthatmodificationsandchangestothetermsandconditionsoftheContractthatincreasethetotalamounttobepaidthePrincipalshallautomaticallyincreasetheobligationoftheSuretyonthisContractBondandnoticetoSuretyisnotrequiredforsuchincreasedobligation.ThisContractBondshallbegovernedandconstruedbythelawsoftheStateofWashington,andvenueshallbeinKingCounty,Washington.AnyprovisionofthisContractBondconflictingwithstatutoryorlegalrequirementsshallbedeemeddeletedandprovisionsconformingtosuchstatutoryorlegalrequirementsshallbedeemedincorporated.ThisContractBondshallbeexecutedintwo(2)originalcounterparts,andshaltbesignedbytheparties’dulyauthorizedofficers.ThisContractBondwillonlybeacceptedifisaccompaniedbyafullyexecutedandoriginalpowerofattorneyfortheofficeexecutingonbehalfoftheSurety.PRINCIPALSURETYWESTWATERCONSTRUCTIONCOMPANY[Principal][Signat..f.uthorizedOfficial]MICHAELJCAPLIS[PrintedName]MerchantsBondingCompany(Mutual)[Surety]JamieArmfield[PrintedName]PRESIDENT[Title]/q-oat[Date]NameandaddressoflocalofficeofAgentand/orSuretyCompany:AttorneyinFact[Title]June3,2021[Date]USIInsuranceServices601UnionStreet,Suite1000Seattle,WA98101Teleohone:2064416300ContractDocumentsHouserWayIntersectionandPedestrianImprovementsProjectPage29March2021AGENDA ITEM #6. b)
MERCHANi.BONDINGCOMPANYUPOWEROFATTORNEYKnowAllPersonsByThesePresents,thatMERCHANTSBONDINGCOMPANY(MUTUAL)andMERCHANTSNATIONALBONDING,INC.,bothbeingcorporationsoftheStateofIowa(hereincollectivelycalledthe“Companies”)doherebymake,constituteandappoint,individually,AmberEngel;DebbieLindstrom;HollyEUlfers;JamieArmfleld;PeggyAFirth;RoxanaPalacios;ScottCAldermantheirtrueandlawfulAttorney(s)-in-Fact,tosignitsnameassurety(ies)andtoexecute,sealandacknowledgeanyandallbonds,undertakings,contractsandotherwritteninstrumentsinthenaturethereof,onbehalfoftheCompaniesintheirbusinessofguaranteeingthefidelityofpersons,guaranteeingtheperformanceofcontractsandexecutingorguaranteeingbondsandundertakingsrequiredorpermittedinanyactionsorproceedingsallowedbylaw.ThisPower-of-AttorneyisgrantedandissignedandsealedbyfacsimileunderandbyauthorityofthefollowingBy-LawsadoptedbytheBoardofDirectorsofMerchantsBondingCompany(Mutual)onApril23,2011andamendedAugust14,2015andadoptedbytheBoardofDirectorsofMerchantsNationalBonding,Inc.,onOctober16,2015.“ThePresident,Secretary,Treasurer,oranyAssistantTreasureroranyAssistantSecretaryoranyVicePresidentshallhavepowerandauthoritytoappointAttorneys-in-Fact,andtoauthorizethemtoexecuteonbehalfoftheCompany,andattachthesealoftheCompanythereto,bondsandundertakings,recognizances,contractsofindemnityandotherwritingsobligatoryinthenaturethereof.”“ThesignatureofanyauthorizedofficerandthesealoftheCompanymaybeaffixedbyfacsimileorelectronictransmissiontoanyPowerofAttorneyorCertificationthereofauthorizingtheexecutionanddeliveryofanybond,undertaking,recognizance,orothersuretyshipobligationsoftheCompany,andsuchsignatureandsealwhensousedshallhavethesameforceandeffectasthoughmanuallyfixed.”InconnectionwithobligationsinfavoroftheFloridaDepartmentofTransportationonly,itisagreedthatthepowerandauthorityherebygiventotheAttorney-in-Factindudesanyandallconsentsforthereleaseofretainedpercentagesand/orfinalestimatesonengineeringandconstructioncontractsrequiredbytheStateofFloridaDepartmentofTransportation.ItisfullyunderstoodthatconsentingtotheStateofFloridaDepartmentofTransportationmakingpaymentofthefinalestimatetotheContractorand/oritsassignee,shallnotrelievethissuretycompanyofanyofitsobligationsunderitsbond.InconnectionwithobligationsinfavoroftheKentuckyDepartmentofHighwaysonly,itisagreedthatthepowerandauthorityherebygiventotheAttorney-in-FactcannotbemodifiedorrevokedunlesspriorwrittenpersonalnoticeofsuchintenthasbeengiventotheCommissioner-DepartmentofHighwaysoftheCommonwealthofKentuckyatleastthirty(30)dayspriortothemodificationorrevocation.InWitnessWhereof,theCompaniesh?vecausedthisinstrumenttobesignedandsealedthis30thdayof44\-0-2003•.!*.l?’44STATEOFIOWA““I””COUNTYOFDALLASss.Onthis30thdayofApril2021,beforemeappearedLarryTaylor,tomepersonallyknown,whobeingbymedulysworndidsaythatheisPresidentofMERCHANTSBONDINGCOMPANY(MUTUAL)andMERCHANTSNATIONALBONDING,INC.;andthatthesealsaffixedtotheforegoinginstrumentaretheCorporateSealsoftheCompanies:andthatthesaidinstrumentwassignedandsealedinbehalfoftheCompaniesbyauthorityoftheirrespectiveBoardsofDirectors.$‘APOLLYMASON0CommissionNumber750576‘MyCommissionExpires‘o,v”January07,2023(Expirationofnotary’scommissiondoesnotinvalidatethisinstrument)I,WilliamWarner,Jr.,SecretaryofMERCHANTSBONDINGCOMPANY(MUTUAL)andMERCHANTSNATIONALBONDING,INC.,doherebycertifythattheaboveandforegoingisatrueandcorrectcopyofthePOWER-OF-ATTORNEYexecutedbysaidCompanies,whichisstillinfullforceandeffectandhasnotbeenamendedorrevoked.•‘42•:$--:•‘.1933.•:•.r....:‘9O,•:--:•‘.1933•:•••.::2021AprilMERCHANTSBONDINGCOMPANY(MUTUAL)MERCHANTSNATIONALBONDING,INC.PresidentNotaiyPublicInWitnessWhereof,IhavehereuntosetmyhandandaffixedthesealoftheCompaniesonthis3rddaycisIII,II*,-0-2003...%:June,2021SecretariPOA0018(1/20)AGENDA ITEM #6. b)
KNOWALLMENBYTHESEPRESENTS,thatWestwaterConstructionCompanyRETAINAGEBONDBondNo.WA101239asPrincipalauthorizedtodobusinessintheStateofWashingtonandMerchantsBondingCompany(Mutual)asSurety,acorporationorganizedandexistingunderthelawsoftheStateofIAandauthorizedtotransactbusinessintheStateofWashingtonasSurety,arejointlyandseverallyheldandbounduntoCityofRentonasObligeeinthepenalsumofFiftySevenThousandNineHundredTwentySevenDollarsand50/100Dollars($57,927.50),whichis5%ofthePrincipal’sbid.WHEREAS,ontheC1lidayof.PZt.thesaidPrincipal,herein,executedacontractwiththeObligee,forHouserWayIntersectionandPedestrianImprovementsProjectWHEREAS,saidcontractandRCW60.28requiretheObligeetowithholdfromthePrincipalthesumof5%frommoniesearnedonestimatesduringtheprogressoftheconstruction,hereinafterreferredtoasearnedretainedfundANDNOWWHEREAS,PrincipalhasrequestedthattheObligeenotretainanyearnedretainedfundsasallowedunderRCW60.28.NOW,THEREFORE,theconditionofthisobligationissuchthatthePrincipalandSuretyareheldandbounduntothebeneficiariesofthetrustfundcreatedbyRCW60.28inthepenalsumof5%ofthefinalcontractcostwhichshallincludeanyincreasesduetochangeorders,increasesinquantitiesofworkortheadditionofanynewitemofwork.IfthePrincipalshallusetheearnedretainedfunds,whichwillnotberetained,forthetrustfundpurposesofRCW60.28,thenthisobligationshallbenullandvoid;otherwise,itshallremaininfullforceandeffect.ThisbondandanyproceedstherefromshallbemadesubjecttoallclaimsandliensandinthesamemannerandpriorityassetforthretainedpercentagesinRCW60.28.PROVIDEDHOWEVER,that:1.TheliabilityoftheSuretyunderthisbondshallnotexceed5%ofthetotalamountearnedbythePrincipalifnomoniesareretainedbytheObligeeonestimatesduringtheprogressofconstruction.2.Anysuitunderthisbondmustbeinstitutedwithinthetimeperiodprovidedbyapplicablelaw.WITNESSourhandsthisMerchantsBondingCompany(Mutual)SuretyBy:101Aftney’n-FactJamieArmfieldUSl”trruranceServicesV3rddayofJune2021WestwaterConstructionCompanyBy:MICHAJAPLISPRESIDENTPrincipalNameandAddressofLocalAgent601UnionStreet,Suite1000,Seattle,WA98101206-441-6300AGENDA ITEM #6. b)
MERCHANi.BONDINGCOMPANYTMPOWEROFATTORNEYKnowAllPersonsByThesePresents,thatMERCHANTSBONDINGCOMPANY(MUTUAL)andMERCHANTSNATIONALBONDING,INC.,bothbeingcorporationsoftheStateofIowa(hereincoJlectivelycalledthe“Companies”)doherebymake,constituteandappoint,individually,AmberEngel;DebbieLindstrom;HollyEUlfers;JamieArmfield;PeggyAFirth;RoxanaPalacios;ScottCAldermantheirtrueandlawfulAttorney(s)-in-Fact,tosignitsnameassurety(ies)andtoexecute,sealandacknowledgeanyandallbonds,undertakings,contractsandotherwritteninstrumentsinthenaturethereof,onbehalfoftheCompaniesintheirbusinessofguaranteeingthefidelityofpersons,guaranteeingtheperformanceofcontractsandexecutingorguaranteeingbondsandundertakingsrequiredorpermittedinanyactionsorproceedingsallowedbylaw.ThisPower-of-AttorneyisgrantedandissignedandsealedbyfacsimileunderandbyauthorityofthefollowingBy-LawsadoptedbytheBoardofDirectorsofMerchantsBondingCompany(Mutual)onApril23,2011andamendedAugust14,2015andadoptedbytheBoardofDirectorsofMerchantsNationalBonding,Inc.,onOctober16,2015.“ThePresident,Secretary,Treasurer,oranyAssistantTreasureroranyAssistantSecretaryoranyVicePresidentshallhavepowerandauthoritytoappointAttorneys-in-Fact,andtoauthorizethemtoexecuteonbehalfoftheCompany,andattachthesealoftheCompanythereto,bondsandundertakings,recognizances,contractsofindemnityandotherwritingsobligatoryinthenaturethereof.”‘ThesignatureofanyauthorizedofficerandthesealoftheCompanymaybeaffixedbyfacsimileorelectronictransmissiontoanyPowerofAttorneyorCertificationthereofauthorizingtheexecutionanddeliveryofanybond,undertaking,recognizance,orothersuretyshipobligationsoftheCompany,andsuchsignatureandsealwhensousedshallhavethesameforceandeffectasthoughmanuallyfixed.”InconnectionwithobligationsinfavoroftheFloridaDepartmentofTransportationonly,itisagreedthatthepowerandauthorityherebygiventotheAttorney-in-Factindudesanyandallconsentsforthereleaseofretainedpercentagesand/orfinalestimatesonengineeringandconstructioncontractsrequiredbytheStateofFloridaDepartmentofTransportation.ItisfullyunderstoodthatconsentingtotheStateofFloridaDepartmentofTransportationmakingpaymentofthefinalestimatetotheContractorand/oritsassignee,shallnotrelievethissuretycompanyofanyofitsobligationsunderitsbond.InconnectionwithobligationsinfavoroftheKentuckyDepartmentofHighwaysonly,itisagreedthatthepowerandauthorityherebygiventotheAttorney-in-FactcannotbemodifiedorrevokedunlesspriorwrittenpersonalnoticeofsuchintenthasbeengiventotheCommissioner-DepartmentofHighwaysoftheCommonwealthofKentuckyatleastthirty(30)dayspriortothemodificationorrevocation.4tON4ij’...•-0-2003G)5‘r..•..,,c;;?hP0i9i1i..,.—._a“‘—aInWitnessWhereof,theCompanieshavecausedthisinstrumenttobesignedandsealedthis30thdayof.SIhhhhll,44’3ON4‘‘•!,&..cz,o-0-2003:PSTATEOFIOWA-0-1933April,2021MERCHANTSBONDINGCOMPANY(MUTUAL)MERCHANTSNATIONALBONDING,INC.BY/7PresidentCOUNTYOFDALLASss.Onthis30thdayofApril2021,beforemeappearedLarryTaylor,tomepersonallyknown,whobeingbymedulysworndidsaythatheisPresidentofMERCHANTSBONDINGCOMPANY(MUTUAL)andMERCHANTSNATIONALBONDING,INC.;andthatthesealsaffixedtotheforegoinginstrumentaretheCorporateSealsoftheCompanies;andthatthesaidinstrumentwassignedandsealedinbehalfoftheCompaniesbyauthorityoftheirrespectiveBoardsofDirectors.siAçPOLLYMASON,%‘CommissionNumber750576y/j1R”jO”_’‘MyCommissionExpiresVI]‘-January07,2023NotarjPublic(Expirationofnotary’scommissiondoesnotinvalidatethisinstrument)I,WilliamWarner,Jr.,SecretaryofMERCHANTSBONDINGCOMPANY(MUTUAL)andMERCHANTSNATIONALBONDING,INC.,doherebycertifythattheaboveandforegoingisatrueandcorrectcopyofthePOWER-OF-ATTORNEYexecutedbysaidCompanies,wIichisstillinfullforceandeffectandhasnotbeenamendedorrevoked.InWitnessWhereof,IhavehereuntosetmyhandandaffixedthesealoftheCompaniesonthis3rddayofPOA0018(1/20)a.“qP044g.__:1933.•.‘..June,2021SecretanjAGENDA ITEM #6. b)
Client#:324787WESTWCONACORDTMCERTIFICATEOFLIABILITYINSURANCETHISCERTIFICATEISISSUEDASAMATTEROFINFORMATIONONLYANDCONFERSNORIGHTSUPONTHECERTIFICATEHOLDER.THISCERTIFICATEDOESNOTAFFIRMATIVELYORNEGATIVELYAMEND,EXTENDORALTERTHECOVERAGEAFFORDEDBYTHEPOLICIESBELOW.THISCERTIFICATEOFINSURANCEDOESNOTCONSTITUTEACONTRACTBETWEENTHEISSUINGINSURER(S),AUTHORIZEDREPRESENTATIVEORPRODUCER,ANDTHECERTIFICATEHOLDER.IMPORTANT:IfthecertificateholderisanADDITIONALINSURED,thepolicy(ies)musthaveADDITIONALINSUREDprovisionsorbeendorsed.IfSUBROGATIONISWAIVED,subjecttothetermsandconditionsofthepolicy,certainpoliciesmayrequireanendorsement.Astatementonthiscertificatedoesnotconferanyrightstothecertificateholderinlieuofsuchendorsement(s).CONTLCtPleasesendallrequestsbyPRODUCERNAMEIFAX610-362-8518USIInsuranceServicesNWCLPHONE:faxoremailI(NC,No):(NC,No,Ext)601UnionStreet,Suite1000E-MAIL:clcertrequest@usi.comADDRESSSeattle,WA98701INSURER(S)AFFORDINGCOVERAGENAIC#INSURERA:AlaskaNationalInsuranceCompany38733INSUREDINSURERB:WestwaterConstructionCompanyINSURERC:16209SE173rdPlaceINSURERD:Renton,WA98058-9102INSURERE:INSURERF:COVERAGESCERTIFICATENUMBER:REVISIONNUMBER:THISISTOCERTIFYTHATTHEPOLICIESOFINSURANCELISTEDBELOWHAVEBEENISSUEDTOTHEINSUREDNAMEDABOVEFORTHEPOLICYPERIODINDICATED.NOTWITHSTANDINGANYREQUIREMENT,TERMORCONDITIONOFANYCONTRACTOROTHERDOCUMENTWITHRESPECTTOWHICHTHISCERTIFICATEMAYBEISSUEDORMAYPERTAIN,THEINSURANCEAFFORDEDBYTHEPOLICIESDESCRIBEDHEREINISSUBJECTTOALLTHETERMS,EXCLUSIONSANDCONDITIONSOFSUCHPOLICIES.LIMITSSHOWNMAYHAVEBEENREDUCEDBYPAIDCLAIMS.GEN’LAGGREGATELIMITAPPLIESPER:IIPRO-POLICYL]JECTLOCAUTOMOBILELIABILITYXANYAUTOOWNED—AUTOSONLYHIRED—AUTOSONLYX-IAPDDAMAGETORENTEDPREMISEStEaoccurrence)$500,000MEDEXP(Anyoneperson)sf5,000PERSONAL&ADVINJURYsl,000,000GENERALAGGREGATEs2,000,000PRODUCTS-COMP/OPAGGs2,000,000BODILYINJURY(Perperson)$BODILYINJURY(Peraccident)$PROPERTYDAMAGE$(Peraccident)AxUMBRELLALIABLcJOCCUR—2OGLUJJ20807/01/202007/01/2021EACHOCCURRENCE58,000,000EXCESSLIABJCLAIMS-MADEExcessofGL,AGGREGATEs8,000,000DEDXRETENTION$70000Auto&EmpLiab$WORKERSCOMPENSATIONPER0TH-ANDEMPLOYERS’LIABILITYYINSTATUTEERANYPROPRtETOR/PARTNER/EXECUTIVEr—EL.EACHACCIDENT$OFFICER/MEMBEREXCLUDED?LiN/A(MandatoryinNH)EL.DISEASE-EAEMPLOYEE$Ifyes,describeunderDESCRIPTIONOFOPERATIONSbelow——EL.DISEASE-POLICYLIMIT$AContractor’s2OGIA11208)7/01/202007/01/2027$250,000Leased/RentedEquipment$1,000DeductibleSpecialForm——ActualCashValueDESCRIPTIONOFOPERATIONS/LOCATIONS/VEHICLES(ACORD107,AdditionalRemarksSchedule,maybeattachedifmorespaceisrequired)HouserWayIntersectionandPedestrianImprovementsProject,WA#CAG-21-003.CityofRenton,ContractingAgencyanditsofficers,electedofficials,employees,agents,andvolunteersareAdditionalInsuredandcoverageisprimaryandnoncontributoryasrespectsGeneralLiability,AutomobileLiabilityifrequiredbywrittencontractperattachedendorsements.UmbrellaLiabilityfollowsform.CERTIFICATEHOLDERCANCELLATION.SHOULDANYOFTHEABOVEDESCRIBEDPOLICIESBECANCELLEDBEFORECityofRentonTHEEXPIRATIONDATETHEREOF,NOTICEWILLBEDELIVEREDIN10555GradyWayACCORDANCEWITHTHEPOLICYPROVISIONS.Renton,WA98057AUTHORIZEDREPRESENTATIVE4”*.A’tDATE(MM/DDNYYY)6/03/2021TYPEOFINSURANCEADDLSUBRINSRWVDCOMMERCIALGENERALLIABILITYCLAIMS-MADEOCCURPDDed:2,000WAStopGapPOLICYNUMBER2OGPS11208POLICYEFFPOLICYEXP(MM/DDNYYY)(MM/DDNYYY)OTHER:A)7/07/202007/01/2021LIMITSEACHOCCURRENCE$1,000,000SCHEDULEDAUTOSNON-OWNEDAUTOSONLY2OGAS1J208HiredAutoPhysicalDamage$100DedComp$100DedCoil07/01/202007/07/2021COMBINEDSINGLELIMIT(Esaccident)WAStopGap$1,000,000ACVACV$1,000,000$©1988-2015ACORDCORPORATION.Allrightsreserved.ACORD25(2016/03)1of1TheACORDnameandlogoareregisteredmarksofACORD#S32280155/M29207130GZNZPAGENDA ITEM #6. b)
I?AlaskaNationalINSURANCECOMPANYCONTRACTORS’GENERALLIABILITYENHANCEMENTENDORSEMENTTHISENDORSEMENTCHANGESTHEPOLICY.PLEASEREADITCAREFULLY.Thisendorsementmodifiesinsuranceprovidedunderthefollowing:COMMERCIALGENERALLIABILITYCOVERAGEPARTCoverageaffordedunderthisextensionofcoverageendorsementdoesnotapplytoanypersonororganizationcoveredasanadditionalinsuredonanyotherendorsementnoworhereafterattachedtothisCoveragePart.SCHEDULEOFCOVERAGESARESUMMARIZEDBELOW1.MiscellaneousAdditionalInsureds8additionalinsuredextensions.PrimaryandNoncontributoryInsurance2.DamageToPremisesRentedtoYouLimitincreasedto$500,000.3.MedicalPaymentsLimitsincreasedto$15,000.Reportingperiodincreasedtothedateofaccident.4.Non-ownedWatercraftIncreasedto50feet.5.SupplementaryPaymentsCostofbailbondsincreasedto$10,000.Dailylossofearningsincreasedto$500.9.NoticeofOccurrence10.BroadKnowledgeofOccurrence11.BodilyInjury-ExtensionofCoverage12.ExpectedOrIntendedInjuryReasonableforce-bodilyinjuryorpropertydamage.13.BlanketWaiverofSubrogationWaiverofsubrogationwhererequiredbywrittencontractorwrittenagreement.1.Currentlyineffectorbecomingeffectiveduringthetermofthispolicy;and2.Executedpriortothe“bodilyinjury”,“propertydamage”or“personalinjuryandadvertisinginjury”,butOnlythefollowingpersonsororganizationsareadditionalinsuredsunderthisendorsementandcoverageprovidedtosuchadditionalinsuredsislimitedasprovidedherein:a.StateorGovernmentalAgencyorSubdivisionorPoliticalSubdivisionsconnectionwithoperationsperformedbyyouoronyourbehalfandthatyouarerequiredbyanyordinance,laworbuildingcodetoincludeasanadditionalinsuredonthiscoveragepartisanadditionalinsured,butonlywithrespecttoliabilityfor“bodilyinjury”,“propertydamage”,“personalandadvertisinginjury”arisingoutofsuchoperations.14.InRemActions1.MISCELLANEOUSADDITIONALINSUREDSSectionIIWhoIsAnInsuredisamendedtoincludeasanadditionalInsuredanypersonororganizationdescribedinParagraphs2.a.through2.h.belowwhomyouarerequiredtoaddasanadditionalinsuredonthispolicyunderawrittencontractorwrittenagreement.However,thewrittencontractorwrittenagreementmustbe:threeyearsfrom6.NewlyFormedOrAcquiredOrganizationsCoverageextendedtotheendofthepolicyperiodorthenextanniversaryofthispolicy’seffectivedate.7.LiberalizationClause8.UnintentionalFailureToDiscloseHazardsAnystateorsubdivisionthathasgovernmentalagencyororpoliticalsubdivisionissuedapermitinANICGL11870716Page1of6AGENDA ITEM #6. b)
AlaskaNationalINSURANCECOMPANYTheinsuranceprovidedtosuchstateorpoliticalsubdivisiondoesnotapplytoany“bodilyinjury”,“propertydamage”or“personalandadvertisinginjury”arisingoutofoperationsperformedforthatstateorpoliticalsubdivision.b.ControllingInterestAnypersonsororganizationswithacontrollinginterestinyoubutonlywithrespecttotheirliabilityarisingoutof:(1)Theirfinancialcontrolofyou,or(2)Premisestheyown,maintainorcontrolwhileyouleaseoroccupythesepremises.Thisinsurancedoesnotapplytostructuralalterations,newconstructionanddemolitionoperationsperformedbyorforsuchadditionalinsured.c.ManagersorLessorsofPremisesAmanagerorlessorofpremisesbutonlywithrespecttoliabilityarisingoutoftheownership,maintenanceoruseofthatspecificpartofthepremisesleasedtoyouandsubjecttothefollowingadditionalexclusions:Thisinsurancedoesnotapplyto:(1)Any“occurrence”whichtakesplaceafteryouceasetobeatenantinthatpremises;or(2)Structuralalterations,newconstructionordemolitionoperationsperformedbyoronbehalfofsuchadditionalinsured.U.Mortgagee,AssigneeorReceiverAmortgagee,assigneeorreceiverbutonlywithrespecttotheirliabilityasmortgagee,assignee,orreceiverandarisingoutoftheownership,maintenance,oruseofapremisesbyyou.Thisinsurancedoesnotapplytostructuralalterations,newconstructionordemolitionoperationsperformedbyorforsuchadditionalinsured.e.OwnersorOtherInterestsFromWhomLandHasBeenLeasedAnownerorotherinterestfromwhomlandhasbeenleasedbyyoubutonlywithrespecttoliabilityarisingoutoftheownership,maintenanceoruseofthatspecificpartofthelandleasedtoyouandsubjecttothefollowingadditionalexclusions:Thisinsurancedoesnotapplyto:(1)Any“occurrence”whichplaceafteryouceasetothatland;or(2)Structuralalterations,newconstructionordemolitionoperationsperformedbyoronbehalfofsuchadditionalinsured.1.Co-ownerofInsuredPremisesAco-ownerofapremisesco-ownedbyyouandcoveredunderthisinsurancebutonlywithrespecttotheco-ownersliabilityasco-ownerofsuchpremises.g.LessorofEquipmentAnypersonororganizationfromwhomyouleaseequipment.Suchpersonororganizationisanadditionalinsuredonlywithrespecttotheirliabilityfor“bodilyinjury”,“propertydamage”or“personalandAdvertisinginjury”caused,inwholeorinpart,byyourmaintenance,operationoruseofequipmentleasedtoyoubysuchpersonororganization.Aperson’sororganization’sstatusasanadditionalinsuredunderthisendorsementendswhentheirwrittencontractorwrittenagreementwithyouforsuchleasedequipmentends.Thisinsurancedoesnotapply:(1)Toany“occurrence”whichtakesplaceaftertheequipmentleaseexpires;ortakesleaseWithrespecttotheaffordedtheseadditionalthefollowingadditionalapply:insuranceinsureds,exclusionsANICGL11870716Page2of6AGENDA ITEM #6. b)
AlaskaNationalLJINSURANCECOMPANY(2)To“bodilyinjury”,“propertydamage”,or“personalandadvertisinginjury”arisingoutofthesolenegligenceofsuchadditionalinsured.h.Owners,LesseesorContractors(1)Suchpersonororganizationisanadditionalinsuredfor“bodilyinjury”,“propertydamage”and“personalandadvertisinginjury”if,andonlytotheextentthat,theinjuryordamageiscausedbynegligentactsoromissionsofyouoryoursubcontractorintheperformanceof“yourwork”towhichthewrittencontractapplies.Thispersonororganizationdoesnotqualifyasanadditionalinsuredwithrespecttoinjuryordamagecausedinwholeorinpartbyindependentnegligentactsoromissionsofsuchpersonororganization.(2)However,thisinsurancedoesnotapplyto“bodilyinjury”,“propertydamage”or“personalandadvertisinginjury”arisingoutofanarchitect’s,engineer’s,orsurveyor’srenderingoforfailuretorenderanyprofessionalservicesincluding:i.thepreparing,approving,orfailingtoprepareorapprovemaps,drawings,opinions,reports,surveys,changeorders,designspecifications;andii.supervisory,engineeringservices.orinspection,or(3)Theinsuranceprovidedtothisadditionalinsured,doesnotcover“bodilyinjury”or“propertydamage”causedbyyournegligentactsandomissionsintheperformanceof“yourwork”thatoccurswithinthe“products-completedoperationshazard”,unlessthewrittencontractcontainsaspecificrequirementthatyouprocurecompletedoperationscoverageorcoveragewithinthe“products-completedoperationshazard”fortheadditionalinsured.However,evenifcoveragewithinthe“products-completedoperationshazard”isrequiredbythewrittencontract,suchcoverageisavailabletotheadditionalinsuredonlyifthe“bodilyinjury”or“propertydamage”occurspriortotheendofthetimeperiodduringwhichyouarerequiredbythewrittencontracttoprovidesuchcoverageortheexpirationdateofthepolicy,whichevercomesfirst.AnyinsuranceprovidedtoanadditionalinsureddesignatedunderParagraphs2.a.through2.g.abovedoesnotapplyto“bodilyinjury”or“propertydamage”includedwithintheproducts-completedoperationshazard.”PrimaryAndNoncontributoryInsuranceThefollowingisaddedtotheOtherInsuranceConditionandsupersedesanyprovisiontothecontrary:Thisinsuranceisprimarytoandwillnotseekcontributionfromanyotherinsuranceavailabletoanadditionalinsuredunderyourpolicyprovidedthat:(1)TheadditionalinsuredisaNamedInsuredundersuchotherinsurance;and(2)Youhaveagreedinwritinginacontractoragreementthatthisinsurancewouldbeprimaryandwouldnotseekcontributionfromanyotherinsuranceavailabletotheadditionalinsured.SectionIII-LimitsofInsurance,thefollowingisadded:WithrespecttotheinsuranceaffordedtotheadditionalinsuredsdescribedinParagraphsa.throughh.above,themostwewillpayonbehalfofsuchadditionalinsuredistheamountofinsurance:(1)Requiredbythecontractoragreement;or(2)AvailableundertheapplicableLimitsofInsuranceshownintheDeclarations;whicheverisless.ANICGL11870716Page3of6AGENDA ITEM #6. b)
AlaskaNationalINSURANCECOMPANYThisprovisionshallnotincreasetheapplicableLimitsofInsuranceshownintheDeclaration.2.DamageToPremisesRentedtoYouSECTIONIII—LIMITSOFINSURANCE,Paragraph6.isreplacedbythefollowing:6.SubjecttoParagraph5.above,theDamagetoPremisesRentedtoYouLimitisthemostwewillpayunderCoverageAfordamagesbecauseof“propertydamage”toanyonepremises,whilerentedtoyou,orinthecaseofdamagebyfire,whilerentedtoyouortemporarilyoccupiedbyyouwithpermissionoftheowner.IfalimitisshownforDamagetoPremisesRentedtoYouthemostwewillpayunderCoverageAfordamagesbecauseor“propertydamage”toanyonepremisesistheLimitshownintheDeclarationsor$500,000,whicheverisgreater.3.MEDICALPAYMENTSA.SectionIII—LimitsofInsurance,Paragraph7.isreplacedbythefollowing:7.SubjecttoParagraphMedicalExpenseLimitispayunderCoverageCexpensesbecauseofsustainedbyanyoneperson.IfalimitisshownforMedicalExpenseintheDeclarationsthemostwewillpayunderCoverageCforallmedicalexpensesbecauseof“bodilyinjury”sustainedbyanyonepersonistheLimitshownintheDeclarationsor$15,000,whicheverisgreater.B.Thisprovision5.(MedicalPayments)doesnotapplyifSectionI-CoverageCMedicalPaymentsisexcludedeitherbytheprovisionsoftheCoveragePartorbyendorsement.C.ParagraphI.a.(3)(b)ofSectionI-CoverageC-MedicalPayments,isreplacedbythefollowing:(b)Theexpensesandreportedthreeyearsofaccident;and4.NON-OWNEDWATERCRAFTA.IfendorsementCG2109,CG2110,CG2450,orCG2451isattachedtothepolicy,ParagraphA.2.g.(2)(b)isreplacedbythefollowing:(b)Awatercraftthatyoudonotownthatis:(i)Lessthan50feetlong:and(ii)Notbeingusedtocarrypersonsorpropertyforacharge.B.IfParagraphA.doesnotapply,Paragraphg.(2)of2.EXCLUSIONunderSECTIONI—COVERAGES,COVERAGEA-BODILYINJURYANDPROPERTYDAMAGELIABILITYisreplacedbythefollowing:(2)Awatercraftthatyoudonotownthatis:(a)Lessthan50feetlong;and(b)NotbeingusedtocarrypersonsorpropertyforaA.UnderSectionI-SupplementaryPayments-CoverageAandB,Paragraph1.b.,thelimitof$250shownforthecostofbailbondsisreplacedby$10,000;B.InParagraph1.d.,thelimitof$250shownfordailylossofearningsisreplacedby$500.6.NEWLYFORMEDORACQUIREDORGANIZATIONSParagraph3.a.ofSectionII-WhoIsAnInsuredisdeletedandreplacedbythefollowing:Coverageunderthisprovisionisaffordedonlyuntiltheendofthepolicyperiodorthenextanniversaryofthispolicy’seffectivedateafteryouacquireorformtheorganization,whicheverisearlier.5.abovethethemostwewillforallmedical“bodilyinjury”charge.5.SUPPLEMENTARYPAYMENTSareincurredtouswithinthedateoftheANICGL11870716Page4of6AGENDA ITEM #6. b)
AlaskaNationalINSURANCECOMPANY7.LIBERALIZATIONCLAUSEIfweadoptachangeinourformsorruleswhichwouldbroadencoverageforcontractorsunderthisendorsementwithoutanadditionalpremiumcharge,yourpolicywillautomaticallyprovidetheadditionalcoveragesasofthedatetherevisioniseffectiveinyourstate.8.UNINTENTIONALFAILURETODISCLOSEHAZARDSSECTIONIV-COMMERCIALGENERALLIABILITYCONDITIONS—Paragraph6.—Representationsisreplacedbythefollowing:6.RepresentationsByacceptingthispolicy,youagree:a.ThestatementsintheDeclarationsareaccurateandcomplete;b.Thosestatementsarebaseduponrepresentationsyoumadetous;andc.Wehaveissuedthispolicyinrelianceprovisiondoesnotaffectourrighttocollectadditionalpremiumortoexerciseourrightsofcancellationornonrenewalinaccordancewithapplicablelawsandregulations.9.NOTICEOFOCCURRENCEThefollowingisaddedtoParagraph2.ofSectionIV-CommercialGeneralLiabilityConditions-DutiesInTheEventofOccurrence,Offense,ClaimorSuit:YourrightsunderthisCoveragePartwillnotbeprejudicedifyoufailtogiveusnoticeofan“occurrence”,offense,claimor“suit”andthatfailureissolelyduetoyourreasonablebeliefthatthe“bodilyinjury”or“propertydamage”isnotcoveredunderthisCoveragePart.However,youshallgivewrittennoticeofthis“occurrence”,offense,claimor“suit”tousassoonasyouareawarethatthisinsurancemayapplytosuch“occurrence”,offense,claimor“suit.”10.BROADKNOWLEDGEOFOCCURRENCEThefollowingisaddedtoParagraph2.ofSectionIV-CommercialGeneralLiabilityConditions-DutiesinTheEventofOccurrence,Offense,ClaimorSuit:Youmustgiveusorourauthorizedrepresentativenoticeofan“occurrence”,offense,claim,or“suit”onlywhenthe“occurrence”,offense,claimor“suit’isknownto:(1)You,ifyouareanindividual;(2)Apartner,ifyouareapartnership;(3)Anexecutiveofficerortheemployeedesignatedbyyoutogivesuchnotice,ifyouareacorporation;or(4)Amanager,ifyouarealimitedliabilitycompany.11.EXPANDEDBODILYINJURYSectionV-Definitions,thedefinitionof“bodilyinjury”ischangedtoread:“Bodilyinjury”meansbodilyinjury,sicknessordiseasesustainedbyaperson,includingdeath,humiliation,shock,mentalanguishormentalinjurybythatpersonatanytimewhichresultsasaconsequenceofthebodilyinjury,sicknessordisease.12.EXPECTEDORINTENDEDINJURY-CoverageA-BodilyDamageLiabilityisa.“Bodilyinjury”or“propertydamage”expectedorintendedfromthestandpointoftheinsured.Thisexclusiondoesnotapplyto“bodilyinjury”or“propertydamage”resultingfromtheuseofreasonableforcetoprotectpersonsorproperty.uponyourrepresentations.Theunintentionalomissionof,orunintentionalerrorin,anyinformationyouprovidedtouswhichweissuingthispolicywillnotrightsunderthisinsurance.relieduponinprejudiceyourHowever,thisExclusiona.ofSectionIInjuryandPropertyreplacedbythefollowing:ANICGL11870716Page5o16AGENDA ITEM #6. b)
AlaskaNationalINSURANCECOMPANY13.BLANKETWAIVEROFSUBROGATIONTheTransferOfRightsOfRecoveryAgainstOthersToUsCondition(SectionIV-CommercialGeneralLiabilityConditions)isamendedbytheadditionofthefollowing:Wewaiveanyrightofrecoverywemayhaveagainstanypersonororganizationbecauseofpaymentswemakeforinjuryordamagearisingoutof:1.Yourongoingoperations;or2.“Yourwork”includedinthe“products-completedoperationshazard.”However,thiswaiverappliesonlywhenyouhaveagreedinwritingtowaivesuchrightsofrecoveryinacontractoragreement,andonlyifthecontractoragreement:1.Isineffectorbecomeseffectiveduringthetermofthispolicy;and2.Wasexecutedpriortoloss.14.INREMACTIONSAnyactioninremagainstanyvesselowned,operatedbyorfor,orcharteredbyorforyouwillbetreatedinthesamemannerasthoughtheactionwereinpersonamagainstyou.Thisendorsementchangesthepolicytowhichitisattachedand,unlessotherwisestated,iseffectiveonthedateissuedat12:01A.M.standardtimeatyourmailingaddressshowninthepolicy.Theinformationbelowisrequiredonlywhenthisendorsementisissuedsubsequenttocommencementofthepolicy.EndorsementEffectiveInsuredPolicyNo.EndorsementNo.CountersignedByIncludescopyrightedmaterialofInsuranceServicesOffice,Inc.,withitspermissionANICGL11870716Page6of6AGENDA ITEM #6. b)
AlaskaNationalINSURANCECOMPANYBUSINESSAUTOCOVERAGEENHANCEMENTENDORSEMENTTHISENDORSEMENTCHANGESTHEPOLICY.PLEASEREADITCAREFULLY.Thisendorsementmodifiesinsuranceprovidedunderthefollowing:BUSINESSAUTOCOVERAGEFORMVariousprovisionsinthisendorsementrestrictcoverage.Readtheentirepolicycarefullytodeterminerights,duties,andwhatisandisnotcovered.Throughoutthispolicy,thewordsrefertotheNamedInsuredDeclarations.Thewordswe”,“us”,thecompanyprovidingthisinsurance.Otherwordsandphrasesthatappearinquotationmarkshavespecialmeaning.RefertoSECTIONV—DEFINITIONSintheBusinessAutoCoverageForm.Thecoveragesprovidedbythisendorsementapplyper“accident”and,unlessotherwisespecified,aresubjecttoalloftheterms,conditions,exclusionsanddeductibleprovisionsofthepolicy,towhichitisattached.SECTIONII—COVEREDAUTOLIABILITYCOVERAGE,ParagraphA.1.WhoIsAnInsuredisamendedtoinclude:U.Any“employee”ofyourswhileoperatingan“auto”hiredorrentedunderacontractoragreementinan“employee’s”name,withyourpermission,whileperformingdutiesrelatedtotheconductofyourbusiness.e.AnypersonororganizationforwhomyouhaveagreedinwritingtoprovideinsurancesuchasisaffordedbythisCoverageForm,butonlywithrespecttoliabilityarisingoutoftheownership,maintenanceoruseof“autos”coveredbythispolicy.Ifsuchpersonororganizationhasotherinsurancethenthisinsuranceisprimarytoandwewillnotseekcontributionfromtheotherinsurance.SECTIONIV—BusinessAutoConditions,ParagraphA.5.—TransferofRightsofRecoveryAgainstOthersToUsisamendedtoinclude:5.TransferofRightsofRecoveryAgainstOtherstoUsThisconditiondoesnotapplytoanyperson(s)ororganization(s)totheextentthatsubrogationagainstthatpersonororganizationiswaivedpriortothe“accident”orthe“loss”underacontractwiththatpersonororganization.SECTIONII—COVEREDAUTOLIABILITYCOVERAGE,ParagraphA.2.a.(2)—SupplementaryPaymentsisreplacedbythefollowing:(2)Upto$10,000forcostofbailbonds(includingbondsforrelatedtrafficlawviolations)requiredbecauseofan“accident”wecover.Wedonothavetofurnishthesebonds.SECTIONII—COVEREDAUTOLIABILITYCOVERAGE,ParagraphA.2.a.(4)—SupplementaryPaymentsisreplacedbythefollowing:(4)Allreasonableexpensesincurredbythe“insured”atourrequest,includingactuallossofearningsupto$500adaybecauseoftimeofffromwork.“you”and“your”shownintheand“our”refertoANICCA11501013Page1of4AGENDA ITEM #6. b)
AlaskaNationalINSURANCECOMPANYSECTIONII—COVEREDAUTOLIABILITYCOVERAGE,ParagraphA.2.c.—VoluntaryPropertyDamageisaddedasfollows:c.VoluntaryPropertyDamageAtyourwrittenrequest,wemaymakeavoluntarypaymentforPropertyDamagecausedbyan“insured”,butwithoutliabilitytoathirdparty,upto$25,000.WewillnotmakeaVoluntaryPropertyDamagepaymenttoanyonewhoisan“insured”underthispolicy.SECTIONIll-PHYSICALDAMAGECOVERAGE,ParagraphA.2.—Towingisreplacedbythefollowing:TowingWewillpayupto$500fortowingandlaborcostsincurredeachtimeacovered“auto”thatisa:a.Privatepassenger;c.“Loss”causedbyfallingobjectsormissiles.However,youhavetheoptionofhavingglassbreakagecausedbyacovered“auto’s”collisionoroverturnconsidereda“loss”underCollisionCoverage.GlassRepair—WaiverofDeductibleNodeductibleappliestoglassbreakage,iftheglassisrepairedratherthanreplaced.SECTIONIII-PHYSICALDAMAGECOVERAGE,ParagraphA.4.a.—TransportationExpensesisreplacedbythefollowing:a.TransportationExpensesWewillpayupto$200perdaytoamaximumof$1,500fortemporarytransportationexpenseincurredbyyoubecauseofthetotaltheftofacovered“auto”thatisa:lbs.ofGrossHowever,theatplaceofSECTIONIll-PHYSICALDAMAGECOVERAGE,ParagraphA.3.—GlassBreakage—HittingaBirdorAnimal—FallingObjectsorMissilesisreplacedbythefollowing:GlassBreakage—HittingaBirdorAnimal—FallingObjectsorMissilesIfyoucarryComprehensiveCoverageforthedamagedcovered“auto”,wewillpaythefollowingunderComprehensiveCoverage:a.GlassBreakage;b.“Loss”causedbyhittingabirdoranimal;(1)Privatepassenger;(2)Truck;(3)Pick-uptruck;(4)Panel;or(5)Vantypevehicleunder20,000lbs.ofGrossVehicleWeight.Wewillpayonlyforthosecovered“autos”forwhichyoucarryeitherComprehensiveorSpecifiedCausesofLossCoverage.Wewillpayfortemporarytransportationexpensesincurredduringtheperiodbeginning48hoursafterthetheftandending,regardlessofthepolicy’sexpiration,whenthecovered“auto”isreturnedtouseorwepayforits“loss”.b.Truck;c.Pick-uptruck;U.Panel;ore.Vantypevehicleunder20,000VehicleWeightisdisabled.labormustbeperformeddisablement.andANICCA11501013Page2of4AGENDA ITEM #6. b)
AlaskaNationalINSURANCECOMPANYSECTIONIII—PHYSICALDAMAGECOVERAGE,ParagraphA.4.b.—LossofUseExpensesisreplacedbythefollowing:b.LossofUseExpenses—Hired,Rented,orBorrowedAutomobilesWewillpayexpensesforwhichan“insured”becomeslegallyresponsibletopayforlossofuseofavehiclehired,rentedorborrowedwithoutadriverunderawrittenrentalcontractoragreement.Wewillpayforlossofuseexpenses,iicausedby:(1)OtherthanCollision,onlyiftheDeclarationsindicatethatComprehensiveCoverageisprovidedforthevehiclewithdrawnfromservice.(2)SpecifiedCausesofLossonlyiftheDeclarationsindicatethatSpecifiedCausesofLossCoverageisprovidedforthevehiclewithdrawnfromservice.onlyiftheDeclarationsthatCollisionCoverageisforthevehiclewithdrawnHowever,themostwewillpayforanyexpensesforlossofuseis$200perday,toamaximumof$1,500.Ill-PHYSICALDAMAGECOVERAGE,A.4.c.—Non-TransportationLossofUseisaddedasfollows:c.Non-TransportationLossofUseExpensesWewillpayupto$2,000fornon-transportationexpenseincurredbyyou,becauseof“loss”toacovered“auto”,ifcausedby:(1)OtherthanCollision,onlyiftheDeclarationsindicatethatComprehensiveCoverageisprovidedforthe“auto”withdrawnfromservice;(2)SpecifiedCausesofLossonlyiftheDeclarationsindicatethatSpecifiedCausesofLossCoverageisprovidedforthe“auto”withdrawnfromservice;or(3)CollisiononlyiftheDeclarationsindicatethatCollisionCoverageisprovidedforthe“auto”withdrawnfromservice.Ill-PHYSICALDAMAGECOVERAGE,A.4.d.—AirbagCoverageisaddedasd.AirbagCoverageWewillpayforthecosttorepair,replace,orresetanairbagthatinflatesforanyreasonotherthanasaresultofacollision,iftheDeclarationsindicatethatthecovered“auto”hasComprehensiveCoverageorSpecifiedCausesofLossCoverage.e.RentalReimbursementCoverageWewillpayupto$75perdayforrentalreimbursementexpensesincurredbyyoufortherentalofan“auto”becauseof“loss”toacovered“auto”thatisa:(1)PrivatePassenger;(2)Truck;(3)Pick-uptruck;(4)Panel;or(5)Vantypevehicleunder20,000lbs.ofGrossVehicleWeight.Paymentappliesinadditiontotheotherwiseapplicableamountofeachcoverageyouhaveonacovered“auto”.Nodeductiblesapplytothiscoverage.SECTIONParagraphfollows:(3)Collisionindicateprovidedfromservice.SECTIONParagraphCoverageIII-PHYSICALDAMAGECOVERAGE,A.4.e.—RentalReimbursementisaddedasfollows:SECTIONParagraphExpensesANICCA11501013Page3of4AGENDA ITEM #6. b)
AlaskaNationalINSURANCECOMPANY(1)Wewillpayonlyforthoseexpensesincurredduringthepolicyperiodbeginning24hoursafterthe“loss”andending,regardlessofthepolicy’sexpiration,withthelesserofthefollowingnumberofdays:(a)Thenumberofdaysreasonablyrequiredtorepairorreplacethecovered“auto”.(b)30days.(2)Thiscoveragedoesnotapplywhiletherearespareorreserve“autos”availabletoyouforyouroperations.(3)TheRentalReimbursementCoveragedescribedabovedoesnotapplytoacovered“auto”thatisdescribedordesignatedasacoveted“auto”onRentalReimbursementCoverageFormCA9923.SECTIONIV—BUSINESSAUTOCONDITIONS—ParagraphB.2.—Concealment,MisrepresentationOrFraudisamendedbyaddingUnintentionalFailuretoDiscloseHazardsattheendofParagraphB.2.asfollows:UnintentionalFailuretoDiscloseHazardsIfyouunintentionallyfailtodiscloseanyhazardsexistingattheinceptiondateofyourpolicy,wewillnotdenycoverageunderthisCoverageFormbecauseofsuchfailure.However,thisprovisiondoesnotaffectourtighttocollectadditionalpremiumorexerciseourrightofcancellationornon-renewal.SECTIONIV—BUSINESSAUTOCONDITIONS—ParagraphB.5.b.—OtherInsuranceisreplacedbythefollowing:b.ForHiredAutoPhysicalDamageCoverage,thefollowingaredeemedtobecovered“autos”youown:(1)Anycovered“auto”youlease,hire,tent,orborrow;and(2)Anycovered“auto”hiredorrentedbyyour“employee”underacontractinthatindividual“employee’s”name,withyourpermission,whileperformingdutiesrelatedtotheconductofyourbusiness.However,any“auto”thatisleased,hired,rentedorborrowedwithadriverisnotacovered“auto”.SECTIONV—DEFINITIONS—ParagraphC.—“Bodilyinjury”isreplacedbythefollowing:C.“Bodilyinjury”meansbodilyinjury,sicknessordiseasesustainedbyapersonincludingdeathormentalanguishresultingfromanyofthese.MentalanguishmeansanytypeofmentaloremotionalillnessordiseaseThisendorsementchangesthepolicytowhichitisattachedand,unlessotherwisestated,iseffectiveonthedateissuedat12:01A.M.standardtimeatyourmailingaddressshowninthepolicy.Theinformationbelowisrequiredonlywhenthisendorsementisissuedsubsequenttocommencementofthepolicy.EndorsementEffectiveInsuredPolicyNo.EndorsementNo.CountersignedBy©InsuranceServicesOffice,Inc.,2009ANICCA11501013Page4of4AGENDA ITEM #6. b)
Project: Houser Way Intersection Pedestrian Improvements Project - CAG-21-003
Due Date: May 25, 2021 at 1:00 p.m.
Opening Date: May 27, 2021 at 2:00 p.m. (Video Conference)
CITY OF RENTON
BID TABULATION SHEET
Bid Total from
Cover Non-Coll Bid Sub Recycle Wage Sched Sign Adden Schedule of Prices
Sheet Prop Dec Bond List Mat Comp Prices Page 1 *Includes Sales Tax
Active Construction, Inc.
P.O. Box 430
1 Puyallup x x x x x x x x x x $1,353,353.00
WA
98371
David
Ceccant
Nordvind Company
43112 248th Avenue SE
2 Enumclaw x x x x x x x x x x $1,442,432.20
WA
98022
Eric
Peterson
Northwest Cascade, Inc.
P.O. Box 7339
3 Puyallup x x x x x x x x x x $1,282,746.50
WA
98373
Clinton
Myers
Bidder
FORMS
Engineer's Estimate $1,092,486.00 AGENDA ITEM #6. b)
Project: Houser Way Intersection Pedestrian Improvements Project - CAG-21-003
Due Date: May 25, 2021 at 1:00 p.m.
Opening Date: May 27, 2021 at 2:00 p.m. (Video Conference)
CITY OF RENTON
BID TABULATION SHEET
Bid Total from
Cover Non-Coll Bid Sub Recycle Wage Sched Sign Adden Schedule of Prices
Sheet Prop Dec Bond List Mat Comp Prices Page 1 *Includes Sales Tax
Bidder
FORMS
R.W. Scott Construction Co.
4005 West Valley Highway, Suite A
4 Auburn x x x x x x x x x x $1,365,324.00
WA
98001
Jeff
Scott
Westwater Construction Company
P.O. Box 59237
5 Renton $1,169,755.00
WA
98058
Michael
Caplis
Engineer's Estimate $1,092,486.00 AGENDA ITEM #6. b)
AB - 2907
City Council Regular Meeting - 19 Jul 2021
SUBJECT/TITLE: CONTRACT AWARD: Duvall Ave NE - NE 9th St to Sunset Blvd (SR-900)
Project, CAG-20-065
RECOMMENDED ACTION: Council Concur
DEPARTMENT: City Clerk
STAFF CONTACT: Jason Seth, City Clerk
EXT.: 6502
FISCAL IMPACT SUMMARY:
Bid Award: $5,218,171.95
Total Budget: $6,061,203
Engineer's Estimate: $6,480,887.94
SUMMARY OF ACTION:
The City Clerk Division opened bids for the Duvall Ave NE - NE 9th St to Sunset Blvd (SR-900) project, CAG-20-
065, on June 24, 2021. The bids met the following Council criteria:
1) More than one bid was received;
2) The lowest responsive and responsible bid was within the project budget; and
3) There were no irregularities with the lowest responsive and responsible bid.
Therefore, staff recommends awarding the Duvall Ave NE - NE 9th St to Sunset Blvd (SR-900) project to lowest
responsive and responsible bidder Reed Trucking & Excavating, Inc., in the amount of $5,218,171.95
EXHIBITS:
A. Staff Recommendation
B. Bid Tab
STAFF RECOMMENDATION:
Award the Duvall Ave NE - NE 9th St to Sunset Blvd (SR-900) project to the lowest responsive and responsible
bidder, Reed Trucking & Excavating, Inc., in the amount of $5,218,171.95.
AGENDA ITEM #6. c)
AGENDA ITEM #6. c)
Jason Seth
Page 2 of 2
July 12, 2021
This project will provide pedestrian improvements along the east side of Duvall Avenue
NE between NE 9th Street and NE 10th Street. The project also includes landscaped
medians to help control access at intersections and prevent weaving onto on-coming
traffic. The project aims to promote multimodal transportation by improving vehicular,
pedestrian and bicycle safety and mobility and by helping to complete a missing link in
the sidewalk and bicycle system network between Sunset Blvd NE and NE 4th Street.
Attachments: TIP #20-15
Bid Tabulations
Bid Evaluation
cc: Martin Pastucha, Public Works Administrator
Jim Seitz, Transportation Systems Director
Ron Straka, Utilities Systems Director
Vangie Garcia, Transportation Planning Manager
Heather Gregersen, Program Development Coordinator II
Josef Harnden, Transportation Administrative Secretary I
File
AGENDA ITEM #6. c)
City of Renton | 2021-2026 Transportation Improvement Program
TIP #:20-15
Duvall Ave NE Roadway Improvements,
NE 7th Pl to NE Sunset Blvd
Project
City Account #:122702
Planning Area:Highlands, East Plateau
Street Classification:Principal Arterial
Project Length:0.67 mi
Description:Reconstruction/resurfacing of roadway, including new pavement, curb, gutter, sidewalk, street
lights, storm drainage, channelization and bike lanes from NE 7th St to Sunset Blvd NE.
Purpose:To enhance safety for pedestrians, bicyclists and vehicles along this corridor.
Project
Aspects:
Maintenance and Preservation, Operations and Safety, Active Transportation
Status/
Changes:
The City was awarded a TIB grant in the amount of $3,468,289 (2015) for the roadway
reconstruction between NE 10th St and NE 12th St, curb, gutter, sidewalk and streetlights on
the west side and channelization from NE 12th St to south of the intersection with NE Sunset
Blvd. The City was also awarded a Department of Ecology (DOE) grant (2018) in the amount of
$1,223,939 for water quality improvements via the installation of water quality treatment
facilities and a TIB grant of $500,000 (2018) for non-motorized improvements along the east
side of Duvall Ave NE, from NE 9th St to NE 10th St. This project is anticipated to be ready for
construction by fall 2020.
Funding Status:
Fully Funded - CN
Planning:
Preliminary Engineering $1,485,693
ROW:$164,200
Construction:$6,257,064
Expenditures:
Priority Rank 5
For Projects, these expenditures are for the life of the project.
For Programs, they are the total expenditures programmed for
the 6 years in the TIP, 2021-2026
- 43 -
RESOLUTION NO. 4418 AGENDA ITEM #6. c)
Bid Due: June 22, 2021
Bid Opening: June 24, 2021
ITEM
NO.ITEM DESCRIPTION SPEC.
SECTION UNIT QUANTITY UNIT PRICE* EXTENSION UNIT PRICE* EXTENSION UNIT PRICE* EXTENSION UNIT PRICE* EXTENSION UNIT PRICE* EXTENSION UNIT PRICE* EXTENSION UNIT PRICE* EXTENSION UNIT PRICE* EXTENSION UNIT PRICE* EXTENSION
A1 SPCC PLAN 1‐07 L.S. 1 $3,000.00 $3,000.00 $500.00 $500.00 $3,000.00 $3,000.00 $150.00 $150.00 $1,000.00 $1,000.00 $500.00 $500.00 $500.00 $500.00 $1,000.00 $1,000.00 $1,000.00 $1,000.00
A2 MOBILIZATION 1‐09 L.S. 1 $523,800.00 $523,800.00 $400,000.00 $400,000.00 $398,400.00 $398,400.00 $504,351.01 $504,351.01 $420,000.00 $420,000.00 $494,000.00 $494,000.00 $440,000.00 $440,000.00 $500,000.00 $500,000.00 $577,000.00 $577,000.00
A3 MIN BID REQ ‐ TYPE B PROGRESS SCHEDULE 1‐02 L.S. 1 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $15,000.00 $15,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00
A4 PROJECT RED LINE DRAWINGS 1‐05 L.S. 1 $4,500.00 $4,500.00 $13,000.00 $13,000.00 $20,000.00 $20,000.00 $2,500.00 $2,500.00 $6,500.00 $6,500.00 $7,500.00 $7,500.00 $7,000.00 $7,000.00 $5,000.00 $5,000.00 $15,500.00 $15,500.00
A5 CONTRACTOR SURVEYING 1‐05 L.S. 1 $25,000.00 $25,000.00 $50,000.00 $50,000.00 $51,000.00 $51,000.00 $55,000.00 $55,000.00 $60,500.00 $60,500.00 $50,000.00 $50,000.00 $43,860.00 $43,860.00 $50,000.00 $50,000.00 $58,000.00 $58,000.00
A6 ADA FEATURES SURVEYING 1‐05 L.S. 1 $3,000.00 $3,000.00 $9,000.00 $9,000.00 $5,200.00 $5,200.00 $5,500.00 $5,500.00 $6,500.00 $6,500.00 $5,000.00 $5,000.00 $5,375.00 $5,375.00 $5,000.00 $5,000.00 $5,000.00 $5,000.00
A7 UTILITY POTHOLING 1‐07 EA 25 $800.00 $20,000.00 $300.00 $7,500.00 $800.00 $20,000.00 $350.00 $8,750.00 $800.00 $20,000.00 $550.00 $13,750.00 $750.00 $18,750.00 $750.00 $18,750.00 $475.00 $11,875.00
A8 RESOLUTION OF UTILITY CONFLICTS 1‐07 FA 1 $14,500.00 $14,500.00 $14,500.00 $14,500.00 $14,500.00 $14,500.00 $14,500.00 $14,500.00 $14,500.00 $14,500.00 $14,500.00 $14,500.00 $14,500.00 $14,500.00 $14,500.00 $14,500.00 $14,500.00 $14,500.00
A9 COVID‐19 HEALTH AND SAFETY PLAN 1‐07 L.S. 1 $5,000.00 $5,000.00 $1,500.00 $1,500.00 $2,000.00 $2,000.00 $2,500.00 $2,500.00 $2,000.00 $2,000.00 $500.00 $500.00 $500.00 $500.00 $1,000.00 $1,000.00 $500.00 $500.00
A10 OTHER TEMPORARY TRAFFIC CONTROL 1‐10 L.S. 1 $100,000.00 $100,000.00 $48,000.00 $48,000.00 $30,000.00 $30,000.00 $6,000.00 $6,000.00 $15,000.00 $15,000.00 $35,000.00 $35,000.00 $58,300.00 $58,300.00 $5,000.00 $5,000.00 $384,000.00 $384,000.00
A11 TRAFFIC CONTROL SUPERVISOR 1‐10 L.S. 1 $18,000.00 $18,000.00 $50,000.00 $50,000.00 $45,000.00 $45,000.00 $35,000.00 $35,000.00 $140,000.00 $140,000.00 $40,000.00 $40,000.00 $135,150.00 $135,150.00 $125,000.00 $125,000.00 $178,000.00 $178,000.00
A12 FLAGGERS 1‐10 HR 3,200 $70.00 $224,000.00 $60.00 $192,000.00 $60.00 $192,000.00 $67.50 $216,000.00 $65.00 $208,000.00 $60.00 $192,000.00 $57.55 $184,160.00 $75.00 $240,000.00 $63.50 $203,200.00
A13 OTHER TRAFFIC CONTROL LABOR 1‐10 HR 1,000 $70.00 $70,000.00 $65.00 $65,000.00 $60.00 $60,000.00 $67.50 $67,500.00 $83.00 $83,000.00 $60.00 $60,000.00 $67.60 $67,600.00 $52.00 $52,000.00 $85.50 $85,500.00
A14 CONSTRUCTION SIGNS CLASS A1‐10 SF 1,200 $10.00 $12,000.00 $30.00 $36,000.00 $30.00 $36,000.00 $21.00 $25,200.00 $18.00 $21,600.00 $28.00 $33,600.00 $18.50 $22,200.00 $3.00 $3,600.00 $30.00 $36,000.00
A15 PORTABLE CHANGEABLE MESSAGE SIGN 1‐10 HR 8,200 $25.00 $205,000.00 $4.00 $32,800.00 $2.50 $20,500.00 $2.00 $16,400.00 $3.00 $24,600.00 $5.00 $41,000.00 $3.35 $27,470.00 $4.00 $32,800.00 $4.00 $32,800.00
A16 OFF‐DUTY UNIFORMED POLICE OFFICER 1‐10 HR 80 $90.00 $7,200.00 $110.00 $8,800.00 $135.00 $10,800.00 $140.00 $11,200.00 $145.00 $11,600.00 $85.00 $6,800.00 $101.00 $8,080.00 $150.00 $12,000.00 $85.00 $6,800.00
A17 SEQUENTIAL ARROW SIGN 1‐10 HR 15,000 $5.00 $75,000.00 $2.00 $30,000.00 $1.50 $22,500.00 $0.66 $9,900.00 $3.00 $45,000.00 $1.00 $15,000.00 $2.25 $33,750.00 $1.00 $15,000.00 $1.30 $19,500.00
A18 CLEARING AND GRUBBING 2‐01 ACRE 0.7 $10,400.00 $7,280.00 $20,000.00 $14,000.00 $27,500.00 $19,250.00 $150,000.00 $105,000.00 $22,000.00 $15,400.00 $35,000.00 $24,500.00 $23,000.00 $16,100.00 $50,000.00 $35,000.00 $31,500.00 $22,050.00
A19 REMOVING DRAINAGE STRUCTURE 2‐02 EACH 9 $700.00 $6,300.00 $800.00 $7,200.00 $500.00 $4,500.00 $300.00 $2,700.00 $190.00 $1,710.00 $250.00 $2,250.00 $1,150.00 $10,350.00 $500.00 $4,500.00 $250.00 $2,250.00
A20 REMOVING STORM SEWER PIPE 2‐02 L.F. 230 $8.00 $1,840.00 $25.00 $5,750.00 $16.00 $3,680.00 $20.00 $4,600.00 $58.00 $13,340.00 $15.00 $3,450.00 $30.00 $6,900.00 $40.00 $9,200.00 $12.00 $2,760.00
A21 REMOVAL OF STRUCTURES AND OBSTRUCTIONS 2‐02 L.S. 1 $10,000.00 $10,000.00 $50,000.00 $50,000.00 $55,000.00 $55,000.00 $60,000.00 $60,000.00 $95,000.00 $95,000.00 $8,000.00 $8,000.00 $40,275.00 $40,275.00 $50,000.00 $50,000.00 $220,000.00 $220,000.00
A22 REMOVING CEMENT CONC. SIDEWALK 2‐02 S.Y. 570 $45.00 $25,650.00 $30.00 $17,100.00 $16.00 $9,120.00 $14.00 $7,980.00 $13.50 $7,695.00 $30.00 $17,100.00 $14.25 $8,122.50 $30.00 $17,100.00 $10.75 $6,127.50
A23 REMOVING CEMENT CONC. CURB AND GUTTER 2‐02 L.F. 1,200 $20.00 $24,000.00 $15.00 $18,000.00 $7.00 $8,400.00 $6.00 $7,200.00 $8.00 $9,600.00 $14.00 $16,800.00 $7.70 $9,240.00 $15.00 $18,000.00 $4.00 $4,800.00
A24 REMOVING CEMENT CONC. CURB 2‐02 L.F. 190 $15.00 $2,850.00 $10.00 $1,900.00 $7.00 $1,330.00 $7.00 $1,330.00 $7.50 $1,425.00 $12.00 $2,280.00 $8.55 $1,624.50 $15.00 $2,850.00 $4.00 $760.00
A25 REMOVING ASPHALT CONC. PAVEMENT 2‐02 S.Y. 1,230 $13.00 $15,990.00 $25.00 $30,750.00 $14.00 $17,220.00 $12.00 $14,760.00 $5.90 $7,257.00 $25.00 $30,750.00 $50.55 $62,176.50 $40.00 $49,200.00 $17.50 $21,525.00
A26 ROADWAY EXCAVATION INCL. HAUL 2‐03 C.Y. 6,850 $30.00 $205,500.00 $50.00 $342,500.00 $45.00 $308,250.00 $60.00 $411,000.00 $33.00 $226,050.00 $40.00 $274,000.00 $43.00 $294,550.00 $50.00 $342,500.00 $35.00 $239,750.00
A27 GRAVEL BORROW INCL. HAUL 2‐03 TON 530 $30.00 $15,900.00 $35.00 $18,550.00 $27.00 $14,310.00 $30.00 $15,900.00 $19.00 $10,070.00 $34.00 $18,020.00 $54.63 $28,953.90 $45.00 $23,850.00 $40.00 $21,200.00
A28 UNSUITABLE FOUNDATION EXCAVATION INCL. HAUL 2‐03 C.Y. 400 $40.00 $16,000.00 $60.00 $24,000.00 $100.00 $40,000.00 $50.00 $20,000.00 $172.00 $68,800.00 $50.00 $20,000.00 $60.50 $24,200.00 $55.00 $22,000.00 $92.00 $36,800.00
A29 SUBGRADE PREPARATION 2‐06 S.Y. 15,000 $5.00 $75,000.00 $3.00 $45,000.00 $4.00 $60,000.00 $1.50 $22,500.00 $3.25 $48,750.00 $2.25 $33,750.00 $1.75 $26,250.00 $10.00 $150,000.00 $1.00 $15,000.00
A30 WATER 2‐07 MGAL 200 $25.00 $5,000.00 $50.00 $10,000.00 $22.75 $4,550.00 $60.00 $12,000.00 $38.50 $7,700.00 $40.00 $8,000.00 $56.00 $11,200.00 $10.00 $2,000.00 $44.00 $8,800.00
A31 STRUCTURE EXCAVATION CLASS B INCL. HAUL 2‐09 C.Y. 330 $50.00 $16,500.00 $70.00 $23,100.00 $42.00 $13,860.00 $17.00 $5,610.00 $26.00 $8,580.00 $5.00 $1,650.00 $39.54 $13,048.20 $85.00 $28,050.00 $38.00 $12,540.00
A32 GRAVEL BACKFILL FOR WALL 2‐09 C.Y. 30 $90.00 $2,700.00 $50.00 $1,500.00 $80.00 $2,400.00 $60.00 $1,800.00 $50.00 $1,500.00 $100.00 $3,000.00 $97.25 $2,917.50 $150.00 $4,500.00 $68.00 $2,040.00
A33 CONSTRUCTION GEOTEXTILE FOR UNDERGROUND DRAINAGE 2‐12 S.Y. 60 $15.00 $900.00 $15.00 $900.00 $5.00 $300.00 $11.50 $690.00 $9.00 $540.00 $15.00 $900.00 $16.75 $1,005.00 $20.00 $1,200.00 $7.50 $450.00
A34 ASPHALT PULVERIZATION FOR USE AS RECYCLED PAVEMENT 4‐01 S.Y. 15,000 $15.00 $225,000.00 $2.00 $30,000.00 $5.50 $82,500.00 $3.00 $45,000.00 $11.40 $171,000.00 $2.25 $33,750.00 $2.60 $39,000.00 $2.50 $37,500.00 $7.00 $105,000.00
A35 CRUSHED SURFACING TOP COURSE 4‐04 TON 2,570 $60.00 $154,200.00 $40.00 $102,800.00 $50.50 $129,785.00 $38.00 $97,660.00 $28.00 $71,960.00 $36.00 $92,520.00 $48.25 $124,002.50 $60.00 $154,200.00 $36.00 $92,520.00
A36 PLANING BITUMINOUS PAVEMENT 5‐04 S.Y. 3,500 $7.00 $24,500.00 $7.00 $24,500.00 $7.00 $24,500.00 $10.00 $35,000.00 $9.75 $34,125.00 $6.00 $21,000.00 $6.70 $23,450.00 $8.00 $28,000.00 $3.50 $12,250.00
A37 HMA CL. 1/2 IN. PG 64‐22 5‐04 TON 7,410 $150.00 $1,111,500.00 $103.00 $763,230.00 $88.75 $657,637.50 $93.00 $689,130.00 $92.00 $681,720.00 $92.00 $681,720.00 $99.70 $738,777.00 $93.00 $689,130.00 $96.00 $711,360.00
A38 ROADWAY CORE 5‐04 EACH 10 $100.00 $1,000.00 $400.00 $4,000.00 $975.00 $9,750.00 $280.00 $2,800.00 $580.00 $5,800.00 $1,000.00 $10,000.00 $560.00 $5,600.00 $500.00 $5,000.00 $500.00 $5,000.00
A39 ASPHALT COST PRICE ADJUSTMENT 5‐04 CALC. 1 $20,000.00 $20,000.00 $20,000.00 $20,000.00 $20,000.00 $20,000.00 $20,000.00 $20,000.00 $20,000.00 $20,000.00 $20,000.00 $20,000.00 $20,000.00 $20,000.00 $20,000.00 $20,000.00 $20,000.00 $20,000.00
A40 JOB MIX COMPLIANCE PRICE ADJUSTMENT 5‐04 CALC. 1 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00
A41 COMPACTION PRICE ADJUSTMENT 5‐04 CALC. 1 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00
A42 CONC. CLASS 4000 FOR RETAINING WALL 3A 6‐11 S.Y. 250 $150.00 $37,500.00 $200.00 $50,000.00 $870.00 $217,500.00 $750.00 $187,500.00 $1,425.00 $356,250.00 $1,500.00 $375,000.00 $1,240.40 $310,100.00 $750.00 $187,500.00 $1,540.00 $385,000.00
A43 SOLID WALL PVC STORM PIPE 4 IN. DIAM. 7‐04 L.F. 190 $50.00 $9,500.00 $20.00 $3,800.00 $83.00 $15,770.00 $31.00 $5,890.00 $70.00 $13,300.00 $45.00 $8,550.00 $97.50 $18,525.00 $100.00 $19,000.00 $52.00 $9,880.00
A44 POLYPROPYLENE STORM SEWER PIPE 12 IN. DIAM.7‐04 L.F. 2,910 $100.00 $291,000.00 $55.00 $160,050.00 $81.00 $235,710.00 $82.00 $238,620.00 $62.00 $180,420.00 $100.00 $291,000.00 $94.50 $274,995.00 $110.00 $320,100.00 $70.00 $203,700.00
A45 POLYPROPYLENE STORM SEWER PIPE 18 IN. DIAM.7‐04 L.F. 130 $120.00 $15,600.00 $75.00 $9,750.00 $126.00 $16,380.00 $135.00 $17,550.00 $90.00 $11,700.00 $130.00 $16,900.00 $121.00 $15,730.00 $200.00 $26,000.00 $95.00 $12,350.00
A46 POLYPROPYLENE STORM SEWER PIPE 24 IN. DIAM.7‐04 L.F. 70 $200.00 $14,000.00 $120.00 $8,400.00 $223.00 $15,610.00 $300.00 $21,000.00 $137.50 $9,625.00 $170.00 $11,900.00 $201.00 $14,070.00 $220.00 $15,400.00 $137.00 $9,590.00
A47 TR. 1 ST. STORM SEWER PIPE 12 IN. DIAM. 7‐04 L.F. 10 $150.00 $1,500.00 $100.00 $1,000.00 $173.00 $1,730.00 $64.00 $640.00 $135.00 $1,350.00 $140.00 $1,400.00 $250.00 $2,500.00 $285.00 $2,850.00 $96.00 $960.00
A48 DUCTILE IRON SEWER PIPE 12 IN. DIAM. 7‐04 L.F. 280 $150.00 $42,000.00 $90.00 $25,200.00 $105.00 $29,400.00 $112.00 $31,360.00 $124.00 $34,720.00 $170.00 $47,600.00 $225.00 $63,000.00 $150.00 $42,000.00 $140.00 $39,200.00
A49 CONCRETE INLET 7‐05 EACH 1 $1,800.00 $1,800.00 $1,200.00 $1,200.00 $1,700.00 $1,700.00 $2,200.00 $2,200.00 $1,445.00 $1,445.00 $1,800.00 $1,800.00 $1,500.00 $1,500.00 $1,000.00 $1,000.00 $1,750.00 $1,750.00
A50 CATCH BASIN TYPE 17‐05 EACH 25 $2,000.00 $50,000.00 $1,400.00 $35,000.00 $1,825.00 $45,625.00 $1,500.00 $37,500.00 $1,735.00 $43,375.00 $1,700.00 $42,500.00 $1,590.00 $39,750.00 $2,000.00 $50,000.00 $1,550.00 $38,750.00
A51 CATCH BASIN TYPE 1L 7‐05 EACH 5 $3,000.00 $15,000.00 $1,550.00 $7,750.00 $2,025.00 $10,125.00 $2,000.00 $10,000.00 $1,640.00 $8,200.00 $1,900.00 $9,500.00 $1,895.00 $9,475.00 $2,500.00 $12,500.00 $1,750.00 $8,750.00
A52 CATCH BASIN TYPE 2 48 IN. DIAM. 7‐05 EACH 2 $4,500.00 $9,000.00 $3,500.00 $7,000.00 $6,000.00 $12,000.00 $3,500.00 $7,000.00 $3,600.00 $7,200.00 $4,500.00 $9,000.00 $4,525.00 $9,050.00 $5,000.00 $10,000.00 $4,200.00 $8,400.00
A53 CONNECTION TO DRAINAGE STRUCTURE 7‐05 EACH 11 $1,000.00 $11,000.00 $1,500.00 $16,500.00 $825.00 $9,075.00 $900.00 $9,900.00 $725.00 $7,975.00 $3,000.00 $33,000.00 $1,255.00 $13,805.00 $500.00 $5,500.00 $1,100.00 $12,100.00
A54 ADJUST CATCH BASIN 7‐05 EACH 5 $600.00 $3,000.00 $400.00 $2,000.00 $750.00 $3,750.00 $650.00 $3,250.00 $340.00 $1,700.00 $750.00 $3,750.00 $645.00 $3,225.00 $1,000.00 $5,000.00 $535.00 $2,675.00
A55 ADJUST VALVE BOX 7‐05 EACH 18 $600.00 $10,800.00 $500.00 $9,000.00 $600.00 $10,800.00 $300.00 $5,400.00 $345.00 $6,210.00 $650.00 $11,700.00 $545.00 $9,810.00 $500.00 $9,000.00 $535.00 $9,630.00
A56 ADJUST MANHOLE 7‐05 EACH 5 $1,000.00 $5,000.00 $750.00 $3,750.00 $750.00 $3,750.00 $650.00 $3,250.00 $505.00 $2,525.00 $750.00 $3,750.00 $644.00 $3,220.00 $1,000.00 $5,000.00 $535.00 $2,675.00
A57 MANHOLE #33 PARTIAL REPLACEMENT 7‐05 EACH 1 $5,000.00 $5,000.00 $5,000.00 $5,000.00 $8,000.00 $8,000.00 $10,000.00 $10,000.00 $8,000.00 $8,000.00 $3,000.00 $3,000.00 $17,670.00 $17,670.00 $5,500.00 $5,500.00 $9,900.00 $9,900.00
A58 TRENCH DRAIN 7‐05 L.F. 50 $35.00 $1,750.00 $200.00 $10,000.00 $300.00 $15,000.00 $280.00 $14,000.00 $133.00 $6,650.00 $225.00 $11,250.00 $220.00 $11,000.00 $280.00 $14,000.00 $240.00 $12,000.00
A59 TREE BOX BIOFILTRATION UNIT 7‐06 EACH 13 $28,900.00 $375,700.00 $26,000.00 $338,000.00 $23,400.00 $304,200.00 $25,000.00 $325,000.00 $26,000.00 $338,000.00 $22,000.00 $286,000.00 $24,410.00 $317,330.00 $25,000.00 $325,000.00 $26,000.00 $338,000.00
A60 FILLING PIPE WITH CDF 7‐08 C.Y. 42 $250.00 $10,500.00 $300.00 $12,600.00 $240.00 $10,080.00 $550.00 $23,100.00 $520.00 $21,840.00 $400.00 $16,800.00 $230.00 $9,660.00 $200.00 $8,400.00 $280.00 $11,760.00
A61 SHORING OR EXTRA EXCAVATION CLASS B7‐08 S.F. 750 $2.00 $1,500.00 $1.00 $750.00 $1.00 $750.00 $1.25 $937.50 $19.50 $14,625.00 $1.00 $750.00 $8.35 $6,262.50 $5.00 $3,750.00 $2.00 $1,500.00
A62 TELEVISION INSPECTION 7‐08 L.S. 1 $10,000.00 $10,000.00 $9,000.00 $9,000.00 $19,200.00 $19,200.00 $7,500.00 $7,500.00 $6,650.00 $6,650.00 $11,000.00 $11,000.00 $8,100.00 $8,100.00 $5,000.00 $5,000.00 $8,000.00 $8,000.00
A63 EROSION CONTROL AND WATER POLLUTION PREVENTION 8‐01 L.S. 1 $18,000.00 $18,000.00 $20,000.00 $20,000.00 $60,000.00 $60,000.00 $50,000.00 $50,000.00 $35,000.00 $35,000.00 $35,000.00 $35,000.00 $14,570.00 $14,570.00 $5,000.00 $5,000.00 $110,000.00 $110,000.00
A64 SILT FENCE 8‐01 L.F. 4,300 $7.00 $30,100.00 $6.00 $25,800.00 $5.75 $24,725.00 $6.00 $25,800.00 $6.25 $26,875.00 $4.25 $18,275.00 $5.70 $24,510.00 $10.00 $43,000.00 $5.00 $21,500.00
A65 INLET PROTECTION 8‐01 EACH 30 $100.00 $3,000.00 $100.00 $3,000.00 $90.00 $2,700.00 $105.00 $3,150.00 $75.00 $2,250.00 $70.00 $2,100.00 $51.00 $1,530.00 $100.00 $3,000.00 $75.00 $2,250.00
A66 SEEDING, FERTILIZING, AND MULCHING 8‐02 SY 970 $12.00 $11,640.00 $5.00 $4,850.00 $3.75 $3,637.50 $2.00 $1,940.00 $4.00 $3,880.00 $4.00 $3,880.00 $2.05 $1,988.50 $3.00 $2,910.00 $2.00 $1,940.00
A67 TOPSOIL TYPE A8‐02 C.Y. 480 $60.00 $28,800.00 $53.00 $25,440.00 $46.50 $22,320.00 $48.00 $23,040.00 $48.00 $23,040.00 $50.00 $24,000.00 $48.15 $23,112.00 $50.00 $24,000.00 $48.50 $23,280.00
A68 PLANTS FOR LANDSCAPING 8‐02 L.S. 1 $90,200.00 $90,200.00 $77,000.00 $77,000.00 $73,000.00 $73,000.00 $105,000.00 $105,000.00 $75,000.00 $75,000.00 $80,000.00 $80,000.00 $103,500.00 $103,500.00 $80,000.00 $80,000.00 $104,000.00 $104,000.00
A69 BARK MULCH 8‐02 C.Y. 100 $50.00 $5,000.00 $63.00 $6,300.00 $46.50 $4,650.00 $61.50 $6,150.00 $48.00 $4,800.00 $50.00 $5,000.00 $61.60 $6,160.00 $50.00 $5,000.00 $62.00 $6,200.00
A70 SYNTHETIC TURF 8‐02 S.F. 550 $20.00 $11,000.00 $25.00 $13,750.00 $25.00 $13,750.00 $18.50 $10,175.00 $22.00 $12,100.00 $20.00 $11,000.00 $18.50 $10,175.00 $25.00 $13,750.00 $18.50 $10,175.00
A71 IRRIGATION SYSTEM RESTORATION 8‐03 L.S. 1 $5,000.00 $5,000.00 $6,000.00 $6,000.00 $4,400.00 $4,400.00 $6,700.00 $6,700.00 $4,470.00 $4,470.00 $4,500.00 $4,500.00 $6,720.00 $6,720.00 $10,000.00 $10,000.00 $6,800.00 $6,800.00
A72 IRRIGATION SYSTEM 8‐03 L.S. 1 $48,000.00 $48,000.00 $32,000.00 $32,000.00 $27,000.00 $27,000.00 $37,000.00 $37,000.00 $27,325.00 $27,325.00 $28,000.00 $28,000.00 $37,110.00 $37,110.00 $30,000.00 $30,000.00 $40,000.00 $40,000.00
A73 CEMENT CONC. TRAFFIC CURB AND GUTTER 8‐04 L.F. 4,600 $60.00 $276,000.00 $25.00 $115,000.00 $30.50 $140,300.00 $37.00 $170,200.00 $23.25 $106,950.00 $35.00 $161,000.00 $29.80 $137,080.00 $30.00 $138,000.00 $25.75 $118,450.00
A74 CEMENT CONC. TRAFFIC CURB 8‐04 L.F. 160 $50.00 $8,000.00 $40.00 $6,400.00 $38.75 $6,200.00 $37.00 $5,920.00 $24.00 $3,840.00 $38.00 $6,080.00 $40.50 $6,480.00 $35.00 $5,600.00 $27.25 $4,360.00
A75 CEMENT CONC. PEDESTRIAN CURB 8‐04 L.F. 145 $75.00 $10,875.00 $30.00 $4,350.00 $29.00 $4,205.00 $28.00 $4,060.00 $26.50 $3,842.50 $35.00 $5,075.00 $43.10 $6,249.50 $25.00 $3,625.00 $32.50 $4,712.50
A76 EXTRUDED CURB 8‐04 L.F. 2,350 $20.00 $47,000.00 $10.00 $23,500.00 $8.75 $20,562.50 $9.00 $21,150.00 $9.00 $21,150.00 $9.00 $21,150.00 $8.85 $20,797.50 $10.00 $23,500.00 $9.00 $21,150.00
A77 CEMENT CONC. DRIVEWAY ENTRANCE TYPE 18‐06 S.Y. 160 $150.00 $24,000.00 $90.00 $14,400.00 $140.00 $22,400.00 $75.00 $12,000.00 $90.47 $14,475.20 $95.00 $15,200.00 $115.15 $18,424.00 $75.00 $12,000.00 $105.00 $16,800.00
A78 RAISED PAVEMENT MARKER TYPE 18‐09 HUND 11 $350.00 $3,850.00 $300.00 $3,300.00 $220.00 $2,420.00 $225.00 $2,475.00 $223.50 $2,458.50 $225.00 $2,475.00 $224.00 $2,464.00 $250.00 $2,750.00 $226.00 $2,486.00
A79 RAISED PAVEMENT MARKER TYPE 28‐09 HUND 3 $1,000.00 $3,000.00 $350.00 $1,050.00 $300.00 $900.00 $310.00 $930.00 $310.00 $930.00 $325.00 $975.00 $310.25 $930.75 $300.00 $900.00 $313.00 $939.00
A80 CHAIN LINK FENCE TYPE 48‐12 L.F. 30 $100.00 $3,000.00 $75.00 $2,250.00 $108.00 $3,240.00 $81.00 $2,430.00 $82.00 $2,460.00 $80.00 $2,400.00 $81.30 $2,439.00 $90.00 $2,700.00 $99.00 $2,970.00
A81 MONUMENT CASE AND COVER 8‐13 EACH 2 $1,000.00 $2,000.00 $1,800.00 $3,600.00 $3,200.00 $6,400.00 $950.00 $1,900.00 $825.00 $1,650.00 $650.00 $1,300.00 $860.00 $1,720.00 $3,250.00 $6,500.00 $725.00 $1,450.00
A82 CEMENT CONC. SIDEWALK 8‐14 S.Y. 1,810 $125.00 $226,250.00 $60.00 $108,600.00 $59.00 $106,790.00 $51.00 $92,310.00 $55.00 $99,550.00 $65.00 $117,650.00 $68.35 $123,713.50 $55.00 $99,550.00 $57.50 $104,075.00
A83 CEMENT CONC. CURB RAMP TYPE PARALLEL 8‐14 EACH 11 $4,500.00 $49,500.00 $3,000.00 $33,000.00 $1,740.00 $19,140.00 $3,300.00 $36,300.00 $2,100.00 $23,100.00 $1,300.00 $14,300.00 $2,360.00 $25,960.00 $3,500.00 $38,500.00 $2,200.00 $24,200.00
A84 CEMENT CONC. CURB RAMP TYPE SINGLE DIRECTIONAL 8‐14 EACH 1 $5,000.00 $5,000.00 $3,300.00 $3,300.00 $1,740.00 $1,740.00 $3,500.00 $3,500.00 $2,100.00 $2,100.00 $1,800.00 $1,800.00 $2,568.00 $2,568.00 $3,500.00 $3,500.00 $2,200.00 $2,200.00
A85 ELECTRICAL SYSTEM, COMPLETE 8‐20 L.S. 1 $462,000.00 $462,000.00 $825,000.00 $825,000.00 $724,000.00 $724,000.00 $650,000.00 $650,000.00 $725,000.00 $725,000.00 $825,000.00 $825,000.00 $728,270.00 $728,270.00 $875,000.00 $875,000.00 $740,000.00 $740,000.00
A86 PERMANENT SIGNING 8‐21 L.S. 1 $8,000.00 $8,000.00 $14,000.00 $14,000.00 $22,000.00 $22,000.00 $15,000.00 $15,000.00 $20,500.00 $20,500.00 $15,000.00 $15,000.00 $12,815.00 $12,815.00 $15,000.00 $15,000.00 $15,500.00 $15,500.00
A87 REMOVING PAVEMENT MARKINGS 8‐22 L.S. 1 $5,000.00 $5,000.00 $2,700.00 $2,700.00 $2,000.00 $2,000.00 $2,000.00 $2,000.00 $2,000.00 $2,000.00 $2,000.00 $2,000.00 $1,010.00 $1,010.00 $1,000.00 $1,000.00 $1,000.00 $1,000.00
A88 PAINT LINE 8‐22 L.F. 12,300 $6.00 $73,800.00 $0.60 $7,380.00 $0.40 $4,920.00 $0.38 $4,674.00 $0.40 $4,920.00 $0.50 $6,150.00 $0.38 $4,674.00 $0.50 $6,150.00 $0.38 $4,674.00
A89 PAINTED WIDE LANE LINE 8‐22 L.F. 350 $8.00 $2,800.00 $0.75 $262.50 $0.55 $192.50 $0.56 $196.00 $0.60 $210.00 $0.55 $192.50 $0.56 $196.00 $1.00 $350.00 $0.56 $196.00
A90 PLASTIC TRAFFIC ARROW 8‐22 EACH 27 $290.00 $7,830.00 $200.00 $5,400.00 $165.00 $4,455.00 $170.00 $4,590.00 $167.50 $4,522.50 $175.00 $4,725.00 $168.00 $4,536.00 $200.00 $5,400.00 $169.00 $4,563.00
A91 PLASTIC CROSSWALK LINE 8‐22 S.F. 500 $12.00 $6,000.00 $13.00 $6,500.00 $10.75 $5,375.00 $11.00 $5,500.00 $11.00 $5,500.00 $11.00 $5,500.00 $11.10 $5,550.00 $12.00 $6,000.00 $11.00 $5,500.00
A92 PLASTIC STOP LINE 8‐22 L.F. 240 $18.00 $4,320.00 $16.00 $3,840.00 $13.50 $3,240.00 $14.00 $3,360.00 $14.00 $3,360.00 $14.00 $3,360.00 $13.95 $3,348.00 $15.00 $3,600.00 $14.00 $3,360.00
A93 PLASTIC BICYCLE LANE SYMBOL 8‐22 EACH 20 $280.00 $5,600.00 $200.00 $4,000.00 $110.00 $2,200.00 $111.00 $2,220.00 $110.00 $2,200.00 $115.00 $2,300.00 $110.85 $2,217.00 $125.00 $2,500.00 $112.00 $2,240.00
A94 PLASTIC TRAFFIC LETTER 8‐22 EACH 8 $135.00 $1,080.00 $200.00 $1,600.00 $150.00 $1,200.00 $150.00 $1,200.00 $150.00 $1,200.00 $155.00 $1,240.00 $150.00 $1,200.00 $150.00 $1,200.00 $152.00 $1,216.00
A95 TEMPORARY PAVEMENT MARKING ‐ SHORT DURATION 8‐23 L.F. 31,500 $1.00 $31,500.00 $0.20 $6,300.00 $0.45 $14,175.00 $0.25 $7,875.00 $0.30 $9,450.00 $0.30 $9,450.00 $0.28 $8,820.00 $0.50 $15,750.00 $0.17 $5,355.00
A96 FUEL COST ADJUSTMENT 1‐09 CALC. 1 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00
A97 STEEL COST ADJUSTMENT 1‐09 CALC. 1 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00 $10,000.00
A98 MAILBOX SUPPORT, TYPE 18‐18 EACH 1 $500.00 $500.00 $750.00 $750.00 $740.00 $740.00 $850.00 $850.00 $1,250.00 $1,250.00 $800.00 $800.00 $1,100.00 $1,100.00 $750.00 $750.00 $1,000.00 $1,000.00
TOTAL FOR SCHEDULE A = $5,766,405.00 $4,689,752.50 $4,813,375.00 $4,894,303.51 $4,996,940.70 $5,015,617.50 $5,135,652.85 $5,383,415.00 $5,783,269.00
*NOTE: All applicable sales tax shall be included in the unit and lump sum bid price per section 1‐07.2(1) and WAC 458‐20‐171.
ITEM
NO.ITEM DESCRIPTION SPEC.
SECTION UNIT QUANTITY UNIT PRICE* EXTENSION UNIT PRICE* EXTENSION UNIT PRICE* EXTENSION UNIT PRICE* EXTENSION UNIT PRICE* EXTENSION UNIT PRICE* EXTENSION UNIT PRICE* EXTENSION UNIT PRICE* EXTENSION UNIT PRICE* EXTENSION
B1 MOBILIZATION AND DEMOLITION (NOT TO EXCEED 10% OF TOTAL OF
BID SCHEDULE B)
7‐16 L.S. 1 $49,390.00 $49,390.00 $15,000.00 $15,000.00 $21,000.00 $21,000.00 $5,000.00 $5,000.00 $25,000.00 $25,000.00 $42,000.00 $42,000.00 $12,000.00 $12,000.00 $20,000.00 $20,000.00 $34,000.00 $34,000.00
B2 TRENCH SAFETY SYSTEMS 7‐16 L.S. 1 $4,000.00 $4,000.00 $2,000.00 $2,000.00 $1,500.00 $1,500.00 $3,850.00 $3,850.00 $2,000.00 $2,000.00 $1,000.00 $1,000.00 $3,150.00 $3,150.00 $2,500.00 $2,500.00 $5,500.00 $5,500.00
B3 REMOVAL AND REPLACEMENT OF UNSUITABLE FOUNDATION 7‐16 TON 100 $50.00 $5,000.00 $60.00 $6,000.00 $63.00 $6,300.00 $63.00 $6,300.00 $77.50 $7,750.00 $75.00 $7,500.00 $111.00 $11,100.00 $65.00 $6,500.00 $59.00 $5,900.00
B4 SELECT IMPORTED TRENCH BACKFILL 7‐16 TON 1,265 $40.00 $50,600.00 $35.00 $44,275.00 $10.00 $12,650.00 $51.00 $64,515.00 $22.50 $28,462.50 $50.00 $63,250.00 $29.00 $36,685.00 $40.00 $50,600.00 $40.00 $50,600.00
B6 FURNISH AND INSTALL 8‐INCH CL 52 WATER MAIN WITH
RESTRAINED‐JOINT FITTINGS AND POLYETHYLENE ENCASEMENT
7‐16 L.F. 20 $200.00 $4,000.00 $140.00 $2,800.00 $245.00 $4,900.00 $185.00 $3,700.00 $232.50 $4,650.00 $175.00 $3,500.00 $381.00 $7,620.00 $400.00 $8,000.00 $169.00 $3,380.00
B7 FURNISH AND INSTALL 12‐INCH CL 52 WATER MAIN WITH
RESTRAINED‐JOINT FITTINGS AND POLYETHYLENE ENCASEMENT
7‐16 L.F. 62 $250.00 $15,500.00 $125.00 $7,750.00 $180.00 $11,160.00 $150.00 $9,300.00 $178.00 $11,036.00 $175.00 $10,850.00 $185.50 $11,501.00 $200.00 $12,400.00 $149.00 $9,238.00
B8 FURNISH AND INSTALL 16‐INCH CL 52 WATER MAIN WITH
RESTRAINED‐JOINT FITTINGS AND POLYETHYLENE ENCASEMENT
7‐16 L.F. 740 $300.00 $222,000.00 $135.00 $99,900.00 $189.00 $139,860.00 $160.00 $118,400.00 $178.00 $131,720.00 $190.00 $140,600.00 $143.55 $106,227.00 $200.00 $148,000.00 $168.00 $124,320.00
B9 ADDITIONAL DUCTILE IRON FITTINGS 7‐16 LBS 3600 $5.00 $18,000.00 $5.00 $18,000.00 $4.25 $15,300.00 $6.00 $21,600.00 $6.75 $24,300.00 $4.00 $14,400.00 $4.35 $15,660.00 $1.00 $3,600.00 $7.00 $25,200.00
B10 CONCRETE FOR THRUST BLOCKING AND DEAD‐MAN ANCHOR BLOCKS 7‐16 C.Y. 27 $350.00 $9,450.00 $100.00 $2,700.00 $415.00 $11,205.00 $315.00 $8,505.00 $170.00 $4,590.00 $500.00 $13,500.00 $222.55 $6,008.85 $250.00 $6,750.00 $550.00 $14,850.00
B11 CONNECTION TO EXISTING WATER MAIN 7‐16 EACH 4 $4,000.00 $16,000.00 $3,500.00 $14,000.00 $3,100.00 $12,400.00 $3,750.00 $15,000.00 $2,950.00 $11,800.00 $4,500.00 $18,000.00 $4,605.00 $18,420.00 $5,000.00 $20,000.00 $3,000.00 $12,000.00
B12 CUT AND CAP EXISTING WATER MAIN AND ABANDON EXISTING WATER
FACILITIES
7‐16 EACH 11 $5,000.00 $55,000.00 $650.00 $7,150.00 $400.00 $4,400.00 $1,100.00 $12,100.00 $700.00 $7,700.00 $1,000.00 $11,000.00 $1,195.00 $13,145.00 $2,500.00 $27,500.00 $925.00 $10,175.00
B14 FURNISH AND INSTALL 8‐INCH GATE VALVE ASSEMBLY 7‐16 EACH 2 $2,000.00 $4,000.00 $1,400.00 $2,800.00 $1,650.00 $3,300.00 $2,000.00 $4,000.00 $2,120.00 $4,240.00 $1,800.00 $3,600.00 $1,915.00 $3,830.00 $2,500.00 $5,000.00 $1,925.00 $3,850.00
B15 FURNISH AND INSTALL 12‐INCH GATE VALVE ASSEMBLY 7‐16 EACH 1 $3,000.00 $3,000.00 $2,500.00 $2,500.00 $2,850.00 $2,850.00 $3,300.00 $3,300.00 $3,330.00 $3,330.00 $3,000.00 $3,000.00 $3,265.00 $3,265.00 $4,000.00 $4,000.00 $3,125.00 $3,125.00
B16 FURNISH AND INSTALL 16‐INCH GATE VALVE ASSEMBLY 7‐16 EACH 1 $5,800.00 $5,800.00 $8,000.00 $8,000.00 $8,425.00 $8,425.00 $9,500.00 $9,500.00 $9,350.00 $9,350.00 $10,000.00 $10,000.00 $9,020.00 $9,020.00 $8,000.00 $8,000.00 $8,925.00 $8,925.00
B17 FURNISH AND INSTALL FIRE HYDRANT ASSEMBLY ON NEW WATER MAIN 7‐16 EACH 2 $7,000.00 $14,000.00 $8,000.00 $16,000.00 $7,400.00 $14,800.00 $8,250.00 $16,500.00 $9,375.00 $18,750.00 $9,000.00 $18,000.00 $9,780.00 $19,560.00 $10,000.00 $20,000.00 $8,100.00 $16,200.00
B18 FURNISH AND INSTALL FIRE HYDRANT ASSEMBLY ON EXISTING WATER
MAIN INCLUDING WET TAP BY APPROVED WET‐ TOP CONTRACTOR
7‐16 EACH 7.0
$9,000.00 $63,000.00 $8,000.00 $56,000.00 $9,350.00 $65,450.00 $9,250.00 $64,750.00 $13,900.00 $97,300.00 $10,000.00 $70,000.00 $9,675.00 $67,725.00 $12,500.00 $87,500.00 $9,450.00 $66,150.00
B19 FURNISH AND INSTALL 1‐INCH WATER SERVICE CONNECTION 7‐16 EACH 1 $5,000.00 $5,000.00 $1,700.00 $1,700.00 $3,000.00 $3,000.00 $2,900.00 $2,900.00 $4,690.00 $4,690.00 $2,400.00 $2,400.00 $4,480.00 $4,480.00 $2,500.00 $2,500.00 $2,625.00 $2,625.00
B20 STORMWATER POLLUTION PREVENTION (AND TESC) PLAN AND
IMPLEMENTATION
7‐16 L.S. 1 $1,000.00 $1,000.00 $1,000.00 $1,000.00 $5,500.00 $5,500.00 $2,500.00 $2,500.00 $12,500.00 $12,500.00 $250.00 $250.00 $2,800.00 $2,800.00 $500.00 $500.00 $3,450.00 $3,450.00
B21 FURNISH AND INSTALL 2‐INCH PERMANENT BLOW‐OFF ASSEMBLY 7‐16 EACH 1 $2,500.00 $2,500.00 $3,500.00 $3,500.00 $2,100.00 $2,100.00 $2,500.00 $2,500.00 $1,370.00 $1,370.00 $2,800.00 $2,800.00 $1,980.00 $1,980.00 $6,415.00 $6,415.00 $3,625.00 $3,625.00
Subtotal for Schedule B = $547,240.00 $311,075.00 $346,100.00 $374,220.00 $410,538.50 $435,650.00 $354,176.85 $439,765.00 $403,113.00
Sales Tax (10.1%) = $55,271.24 $31,418.58 $34,956.10 $37,796.22 $41,464.39 $44,000.65 $35,771.86 $44,416.27 $40,714.41
TOTAL FOR SCHEDULE B = $602,511.24 $342,493.58 $381,056.10 $412,016.22 $452,002.89 $479,650.65 $389,948.71 $484,181.27 $443,827.41
*NOTE: All applicable sales tax shall be included in the unit and lump sum bid price per section 1‐07.2(1) and WAC 458‐20‐171.
ITEM
NO.ITEM DESCRIPTION SPEC.
SECTION UNIT QUANTITY UNIT PRICE* EXTENSION UNIT PRICE* EXTENSION UNIT PRICE* EXTENSION UNIT PRICE* EXTENSION UNIT PRICE* EXTENSION UNIT PRICE* EXTENSION UNIT PRICE* EXTENSION UNIT PRICE* EXTENSION UNIT PRICE* EXTENSION
C1 SPCC PLAN 1‐07 L.S. 1 $200.00 $200.00 $500.00 $500.00 $400.00 $400.00 $150.00 $150.00 $1,000.00 $1,000.00 $250.00 $250.00 $250.00 $250.00 $250.00 $250.00 $350.00 $350.00
C2 MOBILIZATION 1‐09 L.S. 1 $9,230.00 $9,230.00 $10,000.00 $10,000.00 $20,400.00 $20,400.00 $500.00 $500.00 $10,000.00 $10,000.00 $15,000.00 $15,000.00 $11,978.62 $11,978.62 $5,000.00 $5,000.00 $8,900.00 $8,900.00
C3 JOINT UTILITY TRENCH 8‐31 L.F. 180 $40.00 $7,200.00 $100.00 $18,000.00 $92.00 $16,560.00 $150.00 $27,000.00 $78.00 $14,040.00 $100.00 $18,000.00 $150.00 $27,000.00 $175.00 $31,500.00 $38.00 $6,840.00
C4 LATERAL TRENCH 8‐31 L.F.1,150 $35.00 $40,250.00 $75.00 $86,250.00 $88.00 $101,200.00 $50.00 $57,500.00 $89.00 $102,350.00 $80.00 $92,000.00 $103.35 $118,852.50 $125.00 $143,750.00 $30.00 $34,500.00
C5 INSTALL VAULT ‐ PSE TYPE 2'6"x2'6"x2'0" 8‐31 EACH 2 $1,000.00 $2,000.00 $800.00 $1,600.00 $2,200.00 $4,400.00 $325.00 $650.00 $1,825.00 $3,650.00 $2,200.00 $4,400.00 $906.00 $1,812.00 $1,000.00 $2,000.00 $1,250.00 $2,500.00
C6 INSTALL VAULT ‐ PSE TYPE 4'8"x7'0"x5'8" 8‐31 EACH 4 $5,000.00 $20,000.00 $1,000.00 $4,000.00 $4,675.00 $18,700.00 $1,700.00 $6,800.00 $2,435.00 $9,740.00 $3,400.00 $13,600.00 $1,110.00 $4,440.00 $1,250.00 $5,000.00 $2,400.00 $9,600.00
C7 INSTALL VAULT ‐ PSE TYPE 5'3"x2'3"x2'9" 8‐31 EACH 1 $2,000.00 $2,000.00 $1,000.00 $1,000.00 $2,925.00 $2,925.00 $1,400.00 $1,400.00 $2,335.00 $2,335.00 $1,250.00 $1,250.00 $1,110.00 $1,110.00 $1,250.00 $1,250.00 $1,800.00 $1,800.00
C8 INSTALL VAULT ‐ COMCAST TYPE 1'6"x3'0" PEDESTAL 8‐31 EACH 1 $1,000.00 $1,000.00 $750.00 $750.00 $1,800.00 $1,800.00 $200.00 $200.00 $735.00 $735.00 $900.00 $900.00 $793.00 $793.00 $750.00 $750.00 $1,125.00 $1,125.00
C9 INSTALL CONDUIT PIPE ‐ 2 IN. DIAM. ‐ PSE 8‐31 L.F. 30 $4.00 $120.00 $12.00 $360.00 $3.25 $97.50 $11.00 $330.00 $3.25 $97.50 $4.00 $120.00 $3.65 $109.50 $5.00 $150.00 $3.50 $105.00
C10 INSTALL CONDUIT PIPE ‐ 3 IN. DIAM. ‐ PSE 8‐31 L.F. 270 $4.00 $1,080.00 $13.00 $3,510.00 $4.25 $1,147.50 $4.00 $1,080.00 $4.50 $1,215.00 $5.00 $1,350.00 $4.85 $1,309.50 $7.00 $1,890.00 $4.75 $1,282.50
C11 INSTALL CONDUIT PIPE ‐ 4 IN. DIAM. ‐ PSE 8‐31 L.F. 3280 $5.00 $16,400.00 $11.00 $36,080.00 $5.00 $16,400.00 $3.00 $9,840.00 $5.00 $16,400.00 $6.00 $19,680.00 $6.00 $19,680.00 $8.00 $26,240.00 $6.00 $19,680.00
C12 INSTALL CONDUIT PIPE ‐ 6 IN. DIAM. ‐ PSE 8‐31 L.F. 220 $6.00 $1,320.00 $22.00 $4,840.00 $5.50 $1,210.00 $5.00 $1,100.00 $5.50 $1,210.00 $9.00 $1,980.00 $7.80 $1,716.00 $10.00 $2,200.00 $7.75 $1,705.00
C13 INSTALL CONDUIT PIPE ‐ 4 IN. DIAM. ‐ COMCAST 8‐31 L.F. 180 $5.00 $900.00 $11.00 $1,980.00 $5.00 $900.00 $4.00 $720.00 $5.00 $900.00 $6.00 $1,080.00 $6.00 $1,080.00 $8.00 $1,440.00 $6.00 $1,080.00
Subtotal for Schedule C = $101,700.00 $168,870.00 $186,140.00 $107,270.00 $163,672.50 $169,610.00 $190,131.12 $221,420.00 $89,467.50
Sales Tax (10.1%) = $10,271.70 $17,055.87 $18,800.14 $10,834.27 $16,530.92 $17,130.61 $19,203.24 $22,363.42 $9,036.22
TOTAL FOR SCHEDULE C = $111,971.70 $185,925.87 $204,940.14 $118,104.27 $180,203.42 $186,740.61 $209,334.36 $243,783.42 $98,503.72
*NOTE: All applicable sales tax shall be included in the unit and lump sum bid price per section 1‐07.2(1) and WAC 458‐20‐171.
BID SUMMARY
Total of Schedule A (Brought forward)$5,766,405.00 $4,689,752.50 $4,813,375.00 $4,894,303.51 $4,996,940.70 $5,015,617.50 $5,135,652.85 $5,383,415.00 $5,783,269.00
Total of Schedule B (Brought forward)$602,511.24 $342,493.58 $381,056.10 $412,016.22 $452,002.89 $479,650.65 $389,948.71 $484,181.27 $443,827.41
Total of Schedule C (Brought forward)$111,971.70 $185,925.87 $204,940.14 $118,104.27 $180,203.42 $186,740.61 $209,334.36 $243,783.42 $98,503.72
TOTAL BID AMOUNT $6,480,887.94 $5,218,171.95 $5,399,371.24 $5,424,424.00 $5,629,147.01 $5,682,008.76 $5,734,935.92 $6,111,379.69 $6,325,600.13
SCHEDULE A ‐ ROAD, DRAINAGE, ILLUMINATION Westwater Contruction, Co Northwest Cascade, Inc
BID TABULATIONS
Duvall Avenue NE, CAG‐20‐065
ENGINEER'S ESTIMATE Reed Trucking & Excavating Inc Road Construction Northwest, Inc Active Construction, Inc (ACI) Johansen Construction Co Rodarte Construction, Inc Pivetta Brothers Construction, Inc
SCHEDULE B ‐ WATER MAIN ENGINEER'S ESTIMATE Reed Trucking & Excavating Inc Road Construction Northwest, Inc Active Construction, Inc (ACI) Johansen Construction Co Rodarte Construction, Inc Pivetta Brothers Construction, Inc Westwater Contruction, Co Northwest Cascade, Inc
SCHEDULE C – UNDERGROUND UTILITIES ENGINEER'S ESTIMATE Reed Trucking & Excavating Inc Road Construction Northwest, Inc Active Construction, Inc (ACI) Johansen Construction Co Rodarte Construction, Inc Pivetta Brothers Construction, Inc Westwater Contruction, Co Northwest Cascade, Inc
Duvall Avenue NE
TED4004100 Page 1 of 1
Bid Tabulations
2021
AGENDA ITEM #6. c)
City of Renton
Bid Due Date: June 22, 2021; Bid Opening Date: June 24, 2021
Duvall Avenue NE
CAG-20-065
Duvall Avenue NE
Reed Trucking & Excavating Inc Road Construction Northwest, Inc Active Construction, Inc (ACI)Johansen Construction Co Rodarte Construction, Inc Pivetta Brothers Construction, Inc Westwater Contruction, Co Northwest Cascade, Inc
1a The Bidder is not prequalified when so required;N/A N/A N/A N/A N/A N/A N/A N/A
1b The authorized Proposal form furnished by the Contracting Agency is not used or is altered;NO NO NO NO NO NO NO NO
1c The completed Proposal form contains any unauthorized additions, deletions, alternate Bids,
or conditions;NO NO NO NO NO NO NO NO
1d The Bidder adds provisions reserving the right to reject or accept the award, or enter into
the Contract;NO NO NO NO NO NO NO NO
1e A price per unit cannot be determined from the Bid Proposal; NO NO NO NO NO NO NO NO
1f The Proposal form is not properly executed;NO NO NO NO NO NO NO NO
1g The Bidder fails to submit or properly complete a Subcontractor list, if applicable, as
required in Section 1-02.6;NO NO NO NO NO NO NO NO
1h The Bidder fails to submit or properly complete a Disadvantaged Business Enterprise
Certification, if applicable, as required in Section 1-02.6;N/A N/A N/A N/A N/A N/A N/A N/A
1i
The Bidder fails to submit written confirmation from each DBE firm listed on the Bidder's
completed DBE Utilization Certification that they are in agreement with the bidders DBE
participation commitment, if applicable as required in Section 1-02.6, or if the written
confirmation that is submitted fails to meet the requirements of the Special Provisions;
N/A N/A N/A N/A N/A N/A N/A N/A
1j
The Bidder fails to submit DBE Good Faith Effort documentation, if applicable, as required in
Section 1-02.6, or if the documentation that is submitted fails to demonstrate that a Good
Faith Effort to meet the Condition of Award was made;
N/A N/A N/A N/A N/A N/A N/A N/A
1k
The Bidder fails to submit a DBE Bid Item Breakdown form, if applicable, as required in
Section 1-02.6, or if the documentation that is submitted fails to meet the requirements of
the Special Provisions;
N/A N/A N/A N/A N/A N/A N/A N/A
1l
The Bidder fails to submit DBE Trucking Credit Forms, if applicable, as required in Section 1-
02.6, or if the documentation that is submitted fails to meet the requirements of the Special
Provisions;
N/A N/A N/A N/A N/A N/A N/A N/A
1m The Bid Proposal does not constitute a definite and unqualified offer to meet the material
terms of the Bid invitation; or NO NO NO NO NO NO NO NO
1n More than one Proposal is submitted for the same project from a Bidder under the same or
different names.NO NO NO NO NO NO NO NO
2a The Proposal does not include a unit price for every Bid item;NO NO NO NO NO NO NO NO
2b Any of the unit prices are excessively unbalanced (either above or below the amount of a
reasonable Bid) to the potential detriment of the Contracting Agency;TBD TBD TBD TBD TBD TBD TBD TBD
2c Receipt of Addenda is not acknowledged;NO NO NO NO NO NO NO NO
2d A member of a joint venture or partnership and the joint venture or partnership submit
Proposals for the same project (in such an instance, both Bids may be rejected); or NO NO NO NO NO NO NO NO
2e If Proposal form entries are not made in ink.NO NO NO NO NO NO NO NO
3. A Proposal may be considered irregular and may be rejected if:
3a The Bidder fails to submit with their Bid Proposal, evidence of signatory’s authority to sign
the Bid Proposal on behalf of the business entity, as required in Section 1-02.6 (below).
NO - signed by president.
Signatory's authority evidence.
NO - signed by vice president.
Signatory's authority evidence.NO - signed by president.
NO - signed by CEO.
Signatory's authority
evidence.
NO - Signed by president.NO - signed by president. Signatory's
authority evidence.
NO - signed by president. Signatory's
authority evidence.
NO - signed by vice
president. Signatory's
authority evidence.
Proposal Signed by Shawn Reed Matthew Wagester David Ceccanti Jacob Cimmer Jared Rodarte Mark Pivetta Michael Caplis Clinton Myers
The Contracting Agency will accept only those Proposals properly executed on the physical
forms it provides, or electronic forms that the Bidder has been authorized to access. Unless
it approves in writing, the Contracting Agency will not accept Proposals on forms attached to
the Plans and stamped “Informational”.
All prices shall be in legible figures (not words) written in ink or typed, and expressed in U.S.
dollars and cents. The Proposal shall include:
1 A unit price for each item (omitting digits more than four places to the right of the decimal
point),YES YES YES YES YES YES YES YES
2 An extension for each unit price (omitting digits more than two places to the right of the
decimal point), and YES YES YES YES YES YES YES YES
3 The Total Bid Amount (the sum of all extensions).YES YES YES YES YES YES YES YES
4 If a minimum bid amount has been established for any item, the unit or lump sum price
must equal or exceed the minimum amount stated.YES YES YES YES YES YES YES YES
5 Any correction to a bid made by interlineation, alteration, or erasure, shall be initialed by the
signer of the bid.YES YES YES YES YES YES YES YES
In the space provided on the signature sheet, the Bidder shall confirm that all Addenda have
been received. YES YES YES YES YES YES YES YES
The Bidder shall submit with the Bid a list of:
1 1. Subcontractors who will perform the work of heating, ventilation and air conditioning,
plumbing as described in RCW 18.106 and electrical as described in RCW 19.28, and YES YES YES YES YES YES YES YES
2 2. The work those Subcontractors will perform on the Contract.YES YES YES YES YES YES YES YES
3
3. Shall not list more than one Subcontractor for each category of work identified, except,
when Subcontractors vary with Bid alternates, in which case the Bidder shall identify which
Subcontractor will be used for which alternate.
YES YES YES YES YES YES YES YES
If no Subcontractor is listed, the Bidder acknowledges that it does not intend to use any
Subcontractor to perform those items of work. The Bidder shall make no stipulation on the
Bid Form, nor qualify the bid in any manner.
N/A N/A N/A N/A N/A N/A N/A N/A
1 Recycled Materials Proposal is provided YES YES YES YES YES YES YES YES
1 Certification of Compliance with Wage Payment Statutes is provided YES YES YES YES YES YES YES YES
Proposal - original Bid Proposal Deposit is provided YES YES YES YES
YES - Bid Bond not checked
on proposal form. Bid Bond
provided
YES YES YES
Bid Bond is valid (confirm with Surety - contact name/valid or invalid/date&time of call)YES - Brandon Bush, VALID, phone
425-449-9943 6/30/2021, 3:15 pm
YES - Eric Zimmerman, VALID,
6/30/2021, 12:48 pm
YES - Holli Albers/via text, VALID
6/29/2021, 4:00 pm
YES - Nicholas
Fredrickson/VALID, phone,
6/29/21, 3:57pm
YES - Lori McKimmy, VALID,
phone, 6/30/2021 8:56 am
YES - Jim Kuich, VALID, phone,
7/1/2021, 8:37 am
YES - Jamie Armfield, VALID, phone,
6/29/2021, 4:13 pm
YES - Carley Espiritu,
phone, VALID,
6/30/2021, 1:11 pm
Bid bonds shall contain the following:
1 Contracting Agency-assigned number for the project;YES YES YES YES YES YES YES YES
2 Name of the project;YES YES YES YES YES YES YES YES
3 The Contracting Agency named as obligee;YES YES YES YES YES YES YES YES
4 The amount of the bid bond stated either as a dollar figure or as a percentage which
represents five percent of the maximum bid amount that could be awarded;YES YES YES YES YES YES YES YES
5
Signature of the bidder’s officer empowered to sign official statements. The signature of the
person authorized to submit the bid should agree with the signature on the bond, and the
title of the person must accompany the said signature;
YES YES YES YES YES YES YES YES
6 The signature of the surety’s officer empowered to sign the bond and the power of attorney.YES YES YES YES YES YES YES YES
Bid Bond is affixed with surety's corporate seal YES YES YES YES YES YES YES YES
Power of Attorney is affixed with seal YES YES YES YES YES YES YES YES
Reed Trucking & Excavating Inc Road Construction Northwest, Inc Active Construction, Inc (ACI)Johansen Construction Co Rodarte Construction, Inc Pivetta Brothers Construction, Inc Westwater Contruction, Co Northwest Cascade, Inc
1 Date 06/22/2021 06/22/2021 06/22/2021 06/22/2021 06/22/2021 06/22/2021 06/22/2021 06/22/2021
2 Time 12:45pm 12:53pm 12:58pm 12:50pm 12:57pm 12:50pm 12:25pm 12:37pm
Received by (initial)City Clerk - SW City Clerk - SW City Clerk - SW City Clerk - SW City Clerk - SW City Clerk - SW City Clerk - SW City Clerk - SW
BID RECEIVED - DATE/TIME STAMP
Bidder Responsiveness
2021 Standard Specification 1-02.7 Bid Deposit
Special Provision 1-02.6(1) Recycled Materials Proposal
2. A Proposal may be considered irregular and may be rejected if:
Criteria
1. A Proposal will be considered irregular and will be rejected if:
Bidders
Special Provision 1-02.13 Irregular Proposals (October 1, 2020 APWA GSP)
Special Provision 1-02.6 Preparation of Proposal.
Special Provision 1-02.6(2) Certification of Compliance with Wage Payment Statutes
Updated: 07/01/2021 9:02 AM
AGENDA ITEM #6. c)
City of Renton
Bid Due Date: June 22, 2021; Bid Opening Date: June 24, 2021
Duvall Avenue NE
CAG-20-065
Item Description Reed Trucking & Excavating Inc Road Construction Northwest, Inc Active Construction, Inc (ACI)Johansen Construction Co Rodarte Construction, Inc Pivetta Brothers Construction, Inc Westwater Contruction, Co Northwest Cascade, Inc
1
Before award of a public works contract, a bidder must meet the following
responsibility criteria to be considered a responsible bidder and qualified to be
awarded a public works project. The bidder must:
a At time of bid submittal, have certificate of registration in compliance with
chapter 18.27 RCW; <Dept. of Labor and Industries>YES YES YES YES YES YES YES YES
b Have a current state unified business identified (UBI) number;YES YES YES YES YES YES YES YES
c
If applicable, have industrial insurance coverage for the bidder's employees
working in Washington as required in Title 51 RCW; an employment security
department number as required in Title 50 RCW; and a state excise tax
registration number as required in Title 82 RCW;
YES YES YES YES YES YES YES YES
d Not be disqualified from bidding on any public works contract under RCW
39.06.010 or 39.12.065(3);YES YES YES YES YES YES YES YES
e
If bidding on a public works project subject to the apprenticeship utilization
requirements in RCW 39.04.320, not have been found out of compliance by the
Washington state apprenticeship and training council for working apprentices
out of ration, without appropriate supervision, or outside their approved work
processes as outlined in their standards of apprenticeship under chapeter 49.04
RCW for the one-year period immediately preceding the date of the bid
solicitation;
N/A N/A N/A N/A N/A N/A N/A N/A
f
Have received training on the requirements related to public works and
prevailing wage under this chapter and chapter 39.12 RCW. The bidder must
designate a person or persons to be trained on these requirements. The training
must be provided by the department of labor and industries or by a training
provider whose curriculum is approved by the department. The department, in
consultation with the prevailing wage advisory committee, must determine the
length of the training. Bidders that have completed three or more public works
projects and have had a valid business license in Washington for three or more
years are exempt from this subsection. The department of labor and industries
must keep records of entities that have satisfied the training requirement or are
exempt and make the records available on its web site. Responsible parties may
rely on the records made available by the department regarding satisfaction of
the training requirement or exemption; and
NO - Exempt from LNI NO - Exempt from LNI NO - Exempt from LNI.
Completed training on 1/18/2019
NO - Exempt from LNI.
Completed the training on 11/15/2019
Exempt from LNI.
Completed the training on
1/18/2019
NO - Exempt from LNI NO - Exempt from LNI NO - Exempt from LNI
g
Within the three-year period immediately preceding the date of the bid
solicitation, not have been determined by a final and binding citation and notice
of assessment issued by the department of labor and industries or through a civil
judgement entered by a court of limited or general jurisdiction to have willfully
violated, as defined in RCW 49.48.082, any provision of chapter 49.46, 49.48, or
49.52 RCW.
YES YES YES YES YES YES YES YES
2
Before award of a public works contract, a bidder shall submit to the contracting
agency a signed statement in accordance with RCW 9A.72.085 verifying under
penalty of perjury that the bidder is in compliance with the responsible bidder
criteria requirement of subsection (1)(g) of this section. A contracting agency
may award a contract in reasonable reliance upon such a sworn statement.
YES. Signed by president. YES. Signed by vice president.YES. Signed by president. YES. Signed by CEO/Principal.YES. Signed by president.YES. Signed by president.YES. Signed by president.YES. Signed by vice president.
3
In addition to the bidder responsibility criteria in subsection (1) of this section,
the state or municipality may adopt relevant supplemental criteria for
determining bidder responsibility applicable to a particular project which the
bidder must meet.
N/A N/A N/A N/A N/A N/A N/A N/A
a
Supplemental criteria for determining bidder responsibility, including the basis
for evaluation and the deadline for appealing a determination that a bidder is
not responsible, must be provided in the invitation to bid or bidding documents.
N/A N/A N/A N/A N/A N/A N/A N/A
b
In a timely manner before the bid submittal deadline, a potential bidder may
request that the state or municipality modify the supplemental criteria. The
state or municipality must evaluate the information submitted by the potential
bidder and respond before the bid submittal deadline. If the evaluation results in
a change of the criteria, the state or municipality must issue an addendum to the
bidding documents identifying the new criteria.
N/A N/A N/A N/A N/A N/A N/A N/A
c
If the bidder fails to supply information requested concerning responsibility
within the time and manner specified in the bid documents, the state or
municipality may base its determination of responsibility upon any available
information related to the supplemental criteria or may find the bidder not
responsible.
N/A N/A N/A N/A N/A N/A N/A N/A
d
If the state or muncipality determines a bidder to be not responsible, the state
or municipality must provide, in writing, the reasons for the determination. The
bidder may appeal the determination with the time period specified in the
bidding documents by presenting additional information to the state or
municipality. The state or municipality must consider the additional information
before issuing its final determination. If the final determination affirms that the
bidder is not responsible, the state or municipality may not execute a contract
with any other bidder until two business days after the bidder determined to be
not responsible has received the final determination.
N/A N/A N/A N/A N/A N/A N/A N/A
e
If the bidder has a history of receiving monetary penalties for not achieving the
apprentice utilization requirements pursuant to RCW 39.04.320, or is habitual in
utilizing the good faith effort exception process, the bidder must submit an
apprenticeship utilization plan within ten business days immediately following
the notice to proceed date.
N/A N/A N/A N/A N/A N/A N/A N/A
4
The capital projects advisory review board created in RCW 39.10.220 shall
develop suggested guidelines to assist the state and municipalities in developing
supplemental bidder responsibility criteria. The guidelines must be posted on
the board's web site.
N/A N/A N/A N/A N/A N/A N/A N/A
LNI Doing Business As (DBA)REED TRUCKING & EXCAVATING INC RCNW ACTIVE CONSTRUCTION INC JOHANSEN CONSTRUCTION COMPANY RODARTE CONSTRUCTION INC PIVETTA BROTHERS CONST INC WESTWATER CONSTRUCTION COMPANY NORTHWEST CASCADE INC
WA UBI No. 601915034 602286010 273001533 602498928 600264803 600522209 601173970 278049149
License No.REEDTEI016JW RCNW*CN978L6 ACTIVCI164JL JOHANCC800KL RODARI*225D9 PIVETBC063B9 WESTWCC110KD NORTHCI148BG
Entity Type Corporation Corporation Corporation Limited Liability Company Corporation Corporation Corporation Corporation
Entity Name Registered with Secretary of State REED TRUCKING & EXCAVATING, INC.ROAD CONSTRUCTION NORTHWEST, INC.ACTIVE CONSTRUCTION, INC.JOHANSEN CONSTRUCTION COMPANY, LLC RODARTE CONSTRUCTION, INC.PIVETTA BROTHERS CONSTRUCTION, INC.WESTWATER CONSTRUCTION COMPANY NORTHWEST CASCADE, INC.
Item Description Reed Trucking & Excavating Inc Road Construction Northwest, Inc Active Construction, Inc (ACI)Johansen Construction Co Rodarte Construction, Inc Pivetta Brothers Construction, Inc Westwater Contruction, Co Northwest Cascade, Inc
1
The Required Contract Provisions Federal Aid Construction Contracts (FHWA
1273) Revised May 1, 2012 and the amendments thereto supersede any
conflicting provisions of the Standard Specifications and are made a part of this
Contract; provided, however, that if any of the provisions of FHWA 1273, as
amended, are less restrictive than Washington State Law, then the Washington
State Law shall prevail.
FHWA-1273. 1b. The inability of a person to provide the certification set out
below will not necessarily result in denial of participation in this covered
transaction. The prospective first tier participant shall submit an explanation of
why it cannot provide the certification set out below. The certification or
explanation will be considered in connection with the department or agency’s
determination whether to enter into this transaction. However, failure of the
prospective first tier participant to furnish a certification or an explanation shall
disqualify such a person from participation in this transaction.
N/A N/A N/A N/A N/A N/A N/A N/A
* DBA = Doing Business As
DUNS No.N/A 135180045 27319565 781169797 95721015 121165286 074166330 29695053
Bidder Responsibility
Bidders
Criteria Bidders
Special Provision 1-02.14 Qualifications of Bidders Disqualification of Bidders (May 17, 2018 APWA GSP, Option A) (RCW 39.04.350(1))
Special Provision 1-07.12 Federal Agency Inspection (January 25, 2016, WSDOT GSP, Option 1) Required Federal Aid Provisions - NOT A FHWA PROJECT
Criteria
Updated: 07/01/2021 9:02 AM
AGENDA ITEM #6. c)
Project: Duvall Avenue NE Project - CAG-20-065
Due Date: June 22, 2021 at 1:00 p.m.
Opening: June 24, 2021 at 1:00 p.m. (Video Conference)
CITY OF RENTON
BID TABULATION SHEET
Prop Bid Total from
Sched Non-Col Sub Recycled Wage Sign Bid Adden Schedule of Prices
Prop Prices Decl List Mat Compl Page Bond Ack *Includes Sales Tax
Active Construction, Inc. (ACI)
P.O. Box 430
1 Puyallup x x x x x x x x x $5,424,424.00
WA
98371
David
Ceccanti
Johansen Construction Co
P.O. Box 874
2 Buckley x x x x x x x x x $5,629,147.01
WA
98321
Jacob
Cimmer
Northwest Cascade, Inc.
P.O. Box 73399
3 Puyallup x x x x x x x x x $6,325,107.55
WA
98373
Clinton
Myers
Bidder
Engineer's Estimate: $6,300,000.00AGENDA ITEM #6. c)
Project: Duvall Avenue NE Project - CAG-20-065
Due Date: June 22, 2021 at 1:00 p.m.
Opening: June 24, 2021 at 1:00 p.m. (Video Conference)
CITY OF RENTON
BID TABULATION SHEET
Prop Bid Total from
Sched Non-Col Sub Recycled Wage Sign Bid Adden Schedule of Prices
Prop Prices Decl List Mat Compl Page Bond Ack *Includes Sales Tax
Bidder
Pivetta Brothers Construction, Inc.
P.O. Box 370
4 Sumner x x x x x x x x x $5,734,935.92
WA
98390
Mark
Pivetta
REED Trucking & Excavating
2207 Inter Ave, Ste. A
5 Puyallup x x x x x x x x x $5,218,171.95
WA
98372
Shawn
Reed
Road Construction Northwest, Inc
PO Box 2228
6 Renton x x x x x x x x x $5,399,371.24
WA
98056
Matthew
Wagester
Engineer's Estimate: $6,300,000.00AGENDA ITEM #6. c)
Project: Duvall Avenue NE Project - CAG-20-065
Due Date: June 22, 2021 at 1:00 p.m.
Opening: June 24, 2021 at 1:00 p.m. (Video Conference)
CITY OF RENTON
BID TABULATION SHEET
Prop Bid Total from
Sched Non-Col Sub Recycled Wage Sign Bid Adden Schedule of Prices
Prop Prices Decl List Mat Compl Page Bond Ack *Includes Sales Tax
Bidder
Rodarte Construction, Inc.
17 East Valley Hwy E
7 Auburn x x x x x x x x x $5,682,008.76
WA
98092
Jared
Rodarte
Westwater Construction, Co
P.O. Box 59237
8 Renton x x x x x x x x x $6,111,379.69
WA
98058
Michael
Caplis
9
Engineer's Estimate: $6,300,000.00AGENDA ITEM #6. c)
AB - 2905
City Council Regular Meeting - 19 Jul 2021
SUBJECT/TITLE: Cost Reimbursement Agreement
RECOMMENDED ACTION: Council Concur
DEPARTMENT: Police Department
STAFF CONTACT: Dave Leibman, Commander
EXT.: x7573
FISCAL IMPACT SUMMARY:
The Renton Police Department will be reimbursed up to $16,246.55 in overtime funds.
SUMMARY OF ACTION:
The proposed agreement would allow the Renton Police Department to receive funds from, and work with,
the King County Sheriff's Office for the purpose of verifying the address and residency of registered sex and
kidnapping offenders. The goal of this verification is to improve public safety by establishing a greater
presence and emphasis by the Renton Police Department in Renton neighborhoods. The Detectives work
overtime doing this, and then the Police Department submits the overtime to the King County S heriff's
Office for reimbursement under this grant.
EXHIBITS:
A. 2021-2022 Cost Reimbursement Agreement
B. Exhibit A-Verification Request
C. Exhibit B-Officer Contact Worksheet
D. Exhibit C-Witness Statement-Failure to Register
STAFF RECOMMENDATION:
Authorize the Mayor to sign the Cost Reimbursement Agreement.
AGENDA ITEM #6. d)
Cost Reimbursement Agreement
Executed By
King County Sheriff’s Office, a department of
King County, hereinafter referred to as “KCSO,”
Department Authorized Representative:
Mitzi Johanknecht, Sheriff
King County Sheriff’s Office
W-150 King County Courthouse
516 Third Avenue
Seattle, WA 98104
and
Renton Police Department, a department of the City of Renton, hereinafter referred to as
“”Contractor,”
Department Authorized Representative:
Jon Schuldt, Chief of Police
1055 South Grady Way
Renton, Washington 98057
WHEREAS, KCSO and Contractor have mutually agreed to work together for the
purpose of verifying the address and residency of registered sex and kidnapping
offenders; and
WHEREAS, the goal of registered sex and kidnapping offender address and residency
verification is to improve public safety by establishing a greater presence and emphasis
by Contractor in King County neighborhoods; and
WHEREAS, as part of this coordinated effort, Contractor will increase immediate and
direct contact with registered sex and kidnapping offenders in their jurisdiction, and
WHEREAS, KCSO is the recipient of a Washington State Registered Sex and
Kidnapping Offender Address and Residency Verification Program grant through the
Washington Association of Sheriffs and Police Chiefs for this purpose, and
WHEREAS, KCSO will oversee efforts undertaken by program participants in King
County;
NOW THEREFORE, the parties hereto agree as follows:
KCSO will utilize Washington State Registered Sex and Kidnapping Offender Address
and Residency Verification Program funding to reimburse for expenditures associated
AGENDA ITEM #6. d)
Cost Reimbursement Agreement
Page 2 of 6 July 14, 2021
with the Contractor for the verification of registered sex and kidnapping offender address
and residency as set forth below. This Interagency Agreement contains eleven (11)
Articles:
ARTICLE I. TERM OF AGREEMENT
The term of this Cost Reimbursement Agreement shall commence on July 1, 2021
and shall end on June 30, 2022 unless terminated earlier pursuant to the provisions
hereof.
ARTICLE II. DESCRIPTION OF SERVICES
This agreement is for the purpose of reimbursing the Contractor for participation in
the Registered Sex and Kidnapping Offender Address and Residency Verification
Program. The program’s purpose is to verify the address and residency of all
registered sex and kidnapping offenders under RCW 9A.44.130.
The requirement of this program is for face-to-face verification of a registered sex
and kidnapping offender’s address at the place of residency. In the case of
level I offenders, once every twelve months.
of level II offenders, once every six months.
of level III offenders, once every three months.
For the purposes of this program unclassified offenders and kidnapping offenders
shall be considered at risk level I, unless in the opinion of the local jurisdiction a
higher classification is in the interest of public safety.
ARTICLE III. REPORTING
Two reports are required in order to receive reimbursement for grant-related
expenditures. Both forms are included as exhibits to this agreement. “Exhibit A” is
the Offender Watch generated “Registered Sex Offender Verification Request (WA)”
that the sex or kidnapping offender completes and signs during a face-to-face contact.
“Exhibit B” is an “Officer Contact Worksheet” completed in full by an
officer/detective during each verification contact. Both exhibits representing each
contact are due quarterly and must be complete and received before reimbursement
can be made following the quarter reported.
Original signed report forms are to be submitted by the 5th of the month following
the end of the quarter. The first report is due October 5, 2021.
Quarterly progress reports shall be delivered to
Attn: Tina Keller, Project Manager
King County Sheriff’s Office
500 Fourth Avenue, Suite 200
M/S ADM-SO-0200
Seattle, WA 98104
AGENDA ITEM #6. d)
Cost Reimbursement Agreement
Page 3 of 6 July 14, 2021
Phone: 206-263-2122
Email: tina.keller@kingcounty.gov
ARTICLE IV. REIMBURSEMENT
Requests for reimbursement will be made on a monthly basis and shall be forwarded
to KCSO by the 10th of the month following the billing period.
Please note the following terms will be adhered to for the 2021-2022 Registered Sex
Offender Address Verification Program:
Any agency not meeting at least 90% of required verifications will not receive
that quarter’s grant payment.
Any agency not using Offender Watch to track verifications will not receive
that quarter’s grant payment.
Overtime reimbursements for personnel assigned to the Registered Sex and
Kidnapping Offender Address and Residency Verification Program will be calculated
at the usual rate for which the individual’s’ time would be compensated in the
absence of this agreement.
Each request for reimbursement will include the name, rank, overtime compensation
rate, number of reimbursable hours claimed and the dates of those hours for each
officer for whom reimbursement is sought. Each reimbursement request must be
accompanied by a certification signed by an appropriate supervisor of the department
that the request has been personally reviewed, that the information described in the
request is accurate, and the personnel for whom reimbursement is claimed were
working on an overtime basis for the Registered Sex and Kidnapping Offender
Address and Residency Verification Program.
Overtime and all other expenditures under this Agreement are restricted to the
following criteria:
1. For the purpose of verifying the address and residency of registered sex
and kidnapping offenders; and
2. For the goal of improving public safety by establishing a greater presence
and emphasis in King County neighborhoods; and
3. For increasing immediate and direct contact with registered sex and
kidnapping offenders in their jurisdiction
Any non-overtime related expenditures must be pre-approved by KCSO. Your
request for pre-approval must include: 1) The item you would like to purchase,
AGENDA ITEM #6. d)
Cost Reimbursement Agreement
Page 4 of 6 July 14, 2021
2) The purpose of the item, 3) The cost of the item you would like to purchase. You
may send this request for pre-approval in email format. Requests for reimbursement
from KCSO for the above non-overtime expenditures must be accompanied by a
spreadsheet detailing the expenditures as well as a vendor’s invoice and a packing
slip. The packing slip must be signed by an authorized representative of the
Contractor.
All costs must be included in the request for reimbursement and be within the overall
contract amount. Over expenditures for any reason, including additional cost of sales
tax, shipping, or installation, will be the responsibility of the Contractor.
Requests for reimbursement must be sent to
Attn: Tina Keller, Project Manager
King County Sheriff’s Office
500 Fourth Avenue, Suite 200
Seattle, WA 98104
Phone: 206-263-2122
Email: tina.keller@kingcounty.gov
The maximum amount to be paid under this cost reimbursement agreement shall not
exceed Sixteen Thousand Two Hundred Forty Six Dollars and Fifty Five Cents
($16,246.55). Expenditures exceeding the maximum amount shall be the
responsibility of Contractor. All requests for reimbursement must be received by
KCSO by July 31, 2022 to be payable.
ARTICLE V. WITNESS STATEMENTS
"Exhibit C” is a “Sex/Kidnapping Offender Address and Residency Verification
Program Witness Statement Form.” This form is to be completed by any witnesses
encountered during a contact when the offender is suspected of not living at the
registered address and there is a resulting felony “Failure to Register as a Sex
Offender” case to be referred/filed with the KCPAO. Unless, due to extenuating
circumstances the witness is incapable of writing out their own statement, the
contacting officer/detective will have the witness write and sign the statement in their
own handwriting to contain, verbatim, the information on the witness form.
ARTICLE VI. FILING NON-DISCOVERABLE FACE SHEET
“Exhibit D” is the “Filing Non-Discoverable Face Sheet.” This form shall be
attached to each “Felony Failure to Register as a Sex Offender” case that is referred
to the King County Prosecuting Attorney’s Office.
ARTICLE VII. SUPPLEMENTING, NOT SUPPLANTING
AGENDA ITEM #6. d)
Cost Reimbursement Agreement
Page 5 of 6 July 14, 2021
Funds may not be used to supplant (replace) existing local, state, or Bureau of Indian
Affairs funds that would be spent for identical purposes in the absence of the grant.
Overtime - To meet this grant condition, you must ensure that:
Overtime exceeds expenditures that the grantee is obligated or funded to pay
in the current budget. Funds currently allocated to pay for overtime may not
be reallocated to other purposes or reimbursed upon the award of a grant.
Additionally, by the conditions of this grant, you are required to track all
overtime funded through the grant.
ARTICLE VIII. HOLD HARMLESS/INDEMNIFICATION
Contractor shall protect, defend, indemnify, and save harmless King County, its
officers, employees, and agents from any and all costs, claims, judgments, and/or
awards of damages, arising out of, or in any way resulting from, the negligent acts or
omissions of Contractor, its officers, employees, contractors, and/or agents related to
Contractor’s activities under this Agreement. Contractor agrees that its obligations
under this paragraph extend to any claim, demand, and/or cause of action brought by,
or on behalf of any of its employees or agents. For this purpose, Contractor, by
mutual negotiation, hereby waives, as respects King County only, any immunity that
would otherwise be available against such claims under the Industrial Insurance
provisions of Title 51 RCW. In the event King County incurs any judgment, award,
and/or cost arising therefrom including attorney’s fees to enforce the provisions of
this article, all such fees, expenses, and costs shall be recoverable from Contractor.
The provisions of this section shall survive the expiration or termination of this
Agreement.
ARTICLE IX. INSURANCE
Contractor shall maintain insurance policies, or programs of self-insurance, sufficient
to respond to all of its liability exposures under this Agreement. The insurance or
self-insurance programs maintained by the Contractor engaged in work contemplated
in this Agreement shall respond to claims within the following coverage types and
amounts:
General Liability. Coverage shall be at least as broad as Insurance Services
Office form number CG 00 01 covering COMMERCIAL GENERAL
LIABILITY. $5,000,000 combined single limit per occurrence, and for those
policies with aggregate limits, a $5,000,000 aggregate limit. King County, its
officers, officials, employees, and agents are to be covered as additional insureds
as respects liability arising out of activities performed by or on behalf of the City.
Additional Insured status shall include Products-Completed Operations-CG 20 10
11/85 or its equivalent.
AGENDA ITEM #6. d)
Cost Reimbursement Agreement
Page 6 of 6 July 14, 2021
By requiring such liability coverage as specified in this Article IX, King County has
not, and shall not be deemed to have, assessed the risks that may be applicable to
Contractor. Contractor shall assess its own risks and, if deemed appropriate and/or
prudent, maintain greater limits or broader coverage than is herein specified.
Contractor agrees to maintain, through its insurance policies, self-funded program or
an alternative risk of loss financing program, coverage for all of its liability exposures
for the duration of this Agreement. Contractor agrees to provide KCSO with at least
thirty (30) days prior written notice of any material change or alternative risk of loss
financing program.
ARTICLE X. NO THIRD PARTY BENEFICIARIES
There are no third party beneficiaries to this agreement. This agreement shall not
impart any right enforceable by any person or entity that is not a party hereto.
ARTICLE XI. AMENDMENTS
No modification or amendment of the provisions hereof shall be effective unless in
writing and signed by authorized representatives of the parties hereto. The parties
hereto expressly reserve the right to modify this Agreement, by mutual agreement.
IN WITNESS WHEREOF, the parties have executed this Agreement by having their
representatives affix their signatures below.
Renton Police Department KING COUNTY SHERIFF’S
OFFICE
Armondo Pavone, Mayor Mitzi Johanknecht, Sheriff
Date Date
Attest:
Jason Seth, City Clerk Date
City Attorney, City of Renton Date
AGENDA ITEM #6. d)
axumn A
Page:1
Ver1f1cai1onRequest
Agency:King County WA Sheriffs Of?vce Administrator:King County Sheriffs Office Rscphone;(206)263-2120
'
Date:6/16/2016
Offender Information Offender Photo
Name (981 .lest Registration ii 2353765 J‘V
POE SSN
Doe 01/01/1990 Age 26 Au Reg 1:
y ‘‘
sax’om",Drv.Llcr/State 3 ‘Lenora~o+»tvAiufxaLej.
R399 Nat.No Selection FB'
t
I
Height -Hair state in
Weight Eyes Last Verified:\
Risk Type Date
Comm.
Active Officer Alert
LOOKHEREFOR OFFICERSAFETYINFORMATION
Employmentlschool
Name Address Supervisor Phone
Residence
Street
Alias
ScarsITattoosPhone(Bold -Primary Contact Numbers)
LocationNumberType
Vehicle
Make 'Model License State VIN Comments
Offense ‘
Date RS Code/Description Convicted Released Case #Crime Details
I do hereby attest,under penalties of perjury.that any and all information contained here is
current and accurate on this day of 20
Offender Signature:
Of?cer Signature:
‘
‘Date:
Produced by Clifanderwalch ~www.wa|chsysiems.ccm
AGENDA ITEM #6. d)
o -RE 1 TERED EX OFFENDER ADDRE VERIFI ATIONEXh1b1tBGSOFEICERCONTACTWORKSSSHEETCOFFENDERDETAILS:OFF ENDER’S NAME:DOB:ADDRESS:CITY/STATE/ZIP:OFFENDER PHONE:ZIP CODE.:EMPLOYER:WORK PHONE:OFFENDER LEVEL IF KNOWN:FORM OF ID:
DATE &TIME OF CONTACTS:’-‘SEEKEY BELOW FOR CODING
DATE /RESULT:DATE/RESULT:
T]1\/IE:TIME:
DATE RESULT:DATE/RESULT:
TINIE:THVIE:
DATE /RESULT:DATE/RESULT:
TIIVIE:THVIE:
RESULT OF CONTACT:
MADE IN PERSON CONTACT:YES NO FTR CASE NUMBER ASSIGNED IN
OCONTACTMADE:
STATEMENT TAKEN:YES NO
REPORTING PARTY INFORMATION:
REPORTING PERSON:DOB:
MAILING ADDRESS:CITY/ZIP:
TELEPHONE:ALT #
RELATION TO OFFENDER:NONE (UNKNOWN)KNOWN RELATION:
*CONTACT CODE KEY:1 =OFFENDER MOVED 5 =HOUSE FOR SALE 9 =TOOK STATE
MENT2=BAD ADDRESS
3 =NOT HOME
6 =ARRESTED
AGENDA ITEM #6. d)
E hob-t B REGISTERED SEX OFFENDER ADDRESSVERIFICATIONX11OFFICERCONTACTWORKSHEETOFFENDERDETAILS:4 =CHANGE OF ADDRESS 3 =DEADOFFICER/DETECTIVE:AGENCY:AGENDA ITEM #6. d)
EXHIBIT C
Date Agency/Of?cer Incident number
Witness Statement —Failure to Register
Suspect’s Name:
SL1spect’sLast Registered Address:
Witness’Name:
Witness’s Home Address:
Witness’Home Phone Number Cell:Other:
How do they know the suspect (please be as detailed as possible)?
*If suspect rented an apartment or a room from the witness,please have them provide a copy of
any documentationsto this effect and any documentationsthe suspect moved out.
Did the witness ever see the suspect at his/her last registered address?
How often would they see him/her there?
When did the witness start seeing him/her there?
When did they stop?
Why did the suspect stop staying at the address?
Did the suspect keep any personal belongings there?
In general,when is the last time they saw the suspect ‘.7
Do they know where the suspect moved to or their current whereabouts?
Can they provide the names and contact informationof any other witnesses who would have seen
the suspect staying at his/her last registered address?
Is the witness willing to assist in prosecution?
Under penalty of perjury of the laws of the State of Washington,I certify that the foregoing is
true and correct.
Witness’Signature date
AGENDA ITEM #6. d)
AB - 2892
City Council Regular Meeting - 19 Jul 2021
SUBJECT/TITLE: Ratification of the 2021 WRIA 9 Salmon Habitat Plan Update
RECOMMENDED ACTION: Refer to Utilities Committee
DEPARTMENT: Public Works Utility Systems Division
STAFF CONTACT: Joe Farah, Surface Water Utility Engineering Manager
EXT.: 7248
FISCAL IMPACT SUMMARY:
The ratification of the 2021 WRIA 9 Salmon Habitat Plan Update (Plan) has no fiscal impact to the Surface
Water Utility's 2021 Capital Improvement Program budget. There are no immediate financial commitments
required by WRIA 9 member jurisdictions as part the Plan. However, there are three capital improvement
projects in the Plan that aim to restore salmon habitat, which may result in funds being budgeted by the
Surface Water Utility in the future towards the execution of those project in partnership with WRIA 9.
SUMMARY OF ACTION:
The Green/Duwamish and Central Puget Sound Watershed (WRIA 9), of which Renton is a partner jurisdiction,
put together ‘Making Our Watershed Fit for a King, Salmon Habitat Plan in 2005. The purpose of the original
and the updated WRIA 9 Salmon Habitat Plan is to protect, restore, and enhance habitat for Chinook Salmon
listed under the Endangered Species Act, a watershed-wide effort for their recovery, which also benefits other
fish species in the Green/Duwamish Watershed. This Plan was updated based on new information and
coordination with partners and member jurisdictions. The Plan update outlines a portfolio of 12 recovery
strategies to address priority pressures, increase salmon abundance, productivity, and diversity, and build
long-term population resiliency. Successful implementation of the plan hinges on partner coordination and
investment to ensure local land use planning, capital investment programs, and community outreach
messaging are consistent with identified watershed priorities. The Plan includ es:
1. A Strategic Assessment Update summarizing new findings that address important data gaps identified in the
2005 Plan. New information related to habitat use and fish productivity, climate change, temperature, and
contaminants supported a reassessment of functional linkages between priority stressors, habitat conditions,
and viable salmon population parameters.
2. An updated list of capital projects that was developed in partnership with ILA member jurisdictions, non-profit
partners, state agencies, and others engaged in salmon recovery. The updated project list identifies 127 capital
habitat projects across the five sub-watersheds. Tier 1, 2, and 3 projects have significant, moderate, and limited
potential, respectively, to advance recovery and contribute to habitat goals. The Plan includes one tier 2 project
(Lower Springbrook Creek Restoration) and two tier 3 projects (Panther Creek at Talbot Road South and East
Valley Road culvert replacements) located in Renton.
3. A Monitoring and Adaptive Management Plan (MAMP) outlines monitoring priorities intended to help evaluate
progress and inform strategic adaptation of the recovery strategies. The MAMP establishes a framework for
tracking implementation goals, assessing project effectiveness, evaluating habitat status and trends, evaluating
the population status of Green River Chinook salmon, and prioritizing research and monitoring investments. This
framework will guide data collection to support regular assessment of progress and allow WRIA 9 to reassess
prioritization and sequencing of recovery actions.
AGENDA ITEM #6. e)
Staff believes the plan update is important in prioritizing action and projects to protect and enhance the salmon habitat
in the Green/Duwamish and Central Puget Sound Watershed.
EXHIBITS:
A. 2021 WRIA 9 Salmon Habitat Plan
B. 2021 WRIA 9 Salmon Habitat Plan Appendicies
C. Resolution
STAFF RECOMMENDATION:
Adopt the resolution to authorize the city to ratify the WRIA 9 Salmon Habitat Plan Update and present the
resolution for reading and adoption.
AGENDA ITEM #6. e)
MAKING OUR WATERSHED FIT FOR A KING
Salmon Habitat Plan
2021 Update
GREEN/DUWAMISH AND
CENTRAL PUGET SOUND WATERSHED
Water Resource Inventory Area 9 (WRIA 9)
Approved by the WRIA 9 Watershed Ecosystem Forum on
February 11, 2021
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
3
Green/Duwamish and Central Puget Sound Watershed
Water Resource Inventory Area 9 (WRIA 9)
Approved by the WRIA 9 Watershed Ecosystem Forum on February 11, 2021
Alternate formats available
Voice: 206-296-6519 TTY Relay: 711
For Additional Copies of this Plan:
King County Water and Land Resources Division
201 South Jackson Street, Suite 201
Seattle, WA 98104
206-296-6519
Recommended Citation:
Water Resource Investory Area 9 (WRIA 9). 2021.
Green/Duwamish and Central Puget Sound Water-
shed Salmon Habitat Plan 2021 Update. Making Our
Watershed Fit for a King. Approved by the Watershed
Ecosystem Forum February 11, 2021.
File Archive:
2102_10102L_W9SHP-REPORTt.indd
King County IT Design and Civic Engagement Unit archives
Salmon Habitat Plan 2021 Update
MAKING OUR WATERSHED FIT FOR A KING
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
4
Contents
Foreword .............................................................................................................................................................................................8
Acknowledgements ......................................................................................................................................................................10
Executive Summary ......................................................................................................................................................................11
Chapter 1: Background ................................................................................................................................................................13
Regional Salmon Recovery Context ..........................................................................................................................................13
WRIA 9 Organizational Structure ..................................................................................................................................................15
Equity and Social Justice ...................................................................................................................................................................15
Chapter 2: Green/Duwamish and Central Puget Sound Watershed – A Snapshot .......................................17
Chapter 3: The Chinook Salmon Life Cycle – Connecting a Diverse Watershed ...........................................23
Adult Upstream Migration/Spawning ......................................................................................................................................23
Egg Incubation/Emergence .............................................................................................................................................................23
Juvenile Freshwater Rearing/Migration .................................................................................................................................24
Juvenile Estuary Rearing ....................................................................................................................................................................24
Marine Nearshore Rearing ...............................................................................................................................................................25
Ocean Migration .......................................................................................................................................................................................25
Chapter 4: Current Population Status and Recovery Goals .....................................................................................27
Viable Salmon Population Criteria – Current Status and Goals ...........................................................................27
Habitat Goals – Implementation Targets ...............................................................................................................................30
Chapter 5: Strategic Assessment Update - New Science on Priority Pressures ...........................................33
Priority Pressures (Basin of Focus) ............................................................................................................................................33
Chapter 6: Recovery Strategies .............................................................................................................................................49
Strategy: Restore and Improve Fish Passage ...................................................................................................................49
Strategy: Protect, Restore and Enhance Floodplain Connectivity .....................................................................51
Strategy: Protect, Restore, and Enhance Channel Complexity and Edge Habitat ...............................52
Strategy: Protect, Restore, and Enhance Riparian Corridors ...............................................................................53
Strategy: Protect, Restore, and Enhance Sediment and Water Quality .......................................................55
Strategy: Protect, Restore and Enhance Marine Shorelines .................................................................................58
Strategy: Protect, Restore and Enhance Estuarine Habitat ....................................................................................60
Strategy: Protect, Restore and Enhance Instream Flows and Cold Water Refugia ............................62
Strategy: Expand Public Awareness and Education ....................................................................................................64
Strategy: Integrate Agricultural Protection and Salmon Recovery Initiatives .........................................66
Strategy: Integrate Salmon Recovery into Land Use Planning ...........................................................................68
Plan Implementation and Funding ..............................................................................................................................................70
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
5
ROGER TABOR
Chapter 7: Capital Projects ......................................................................................................................................................73
Project Prioritization ................................................................................................................................................................................74
Capital Project Information by Subwatershed. ...................................................................................................................75
Marine Nearshore Subwatershed ...............................................................................................................................76
Duwamish Estuary Subwatershed ..........................................................................................................................102
Lower Green River Subwatershed ............................................................................................................................118
Middle Green River Subwatershed .........................................................................................................................146
Upper Green River Subwatershed ..........................................................................................................................160
Chapter 8: Implementation Strategy .................................................................................................................................163
Annual Funding Package.................................................................................................................................................................. 163
Salmon Recovery Funding............................................................................................................................................................... 164
WRIA 9 CWM Funding Allocation.............................................................................................................................................. 164
Outyear Project Planning (6-year CPIP)............................................................................................................................... 165
Performance Management............................................................................................................................................................. 165
Chapter 9: Monitoring and Adaptive Management ....................................................................................................167
Adaptive Management Framework.......................................................................................................................................... 167
Implementation Monitoring............................................................................................................................................................ 168
Effectiveness Monitoring ................................................................................................................................................................. 168
Validation Monitoring........................................................................................................................................................................... 170
Chapter 10: References ............................................................................................................................................................173
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
6
List of Figures
Figure 1. Green/Duwamish and Central Puget Sound Chinook salmon recovery timeline. ........................................14
Figure 2. Green/Duwamish (WRIA 9) Watershed Map............................................................................................................................... 19
Figure 3. Green/Duwamish (WRIA 9) Land Use Designations Map ................................................................................................21
Figure 4. The Salmon Cycle ............................................................................................................................................................................................24
Figure 5. Primary Chinook salmon life history types in the Green River (updated and modified
from Ruggerone and Weitkamp 2004). ...........................................................................................................................................25
Figure 6. Green River Chinook salmon escapement. .................................................................................................................................29
Figure 7. Howard Hanson Dam spring water storage and allocation. ..........................................................................................34
Figure 8. Projected impacts to Green/Duwamish and Central Puget Sound salmon as a
result of climate change. .............................................................................................................................................................................36
Figure 9. Coastal squeeze in nearshore graphic along the Puget Sound Nearshore refers to
the shallow areas where forage fish spawn are being squeezed out of existence by
shoreline armoring and sea level rise (Coastal Geologic Services). ........................................................................37
Figure 10. Plot of 7-DMax water temperatures for the 2015 and 2016 calendar years measured
by King County at the Whitney Bridge station (GRT10) compared to 7-DMax
temperaturesmeasured from 2001-2014. ........................................................................................................................................39
Figure 11. Representative tributary mouth habitats associated with flapgate flood
control structures. .............................................................................................................................................................................................41
Figure 12. Spawners-recruit plots showing abundance of fry and parr produced based on
estimated adult Chinook salmon escapement (Anderson and Topping 2018). ...............................................43
Figure 13. Chinook salmon that enter the estuarine waters as fry (< 60 mm) experience
very low marine survival rates ...............................................................................................................................................................44
Figure 14. Shoreline modification identified during Marine Shoreline Monitoring and
Compliance Project (Ecology). ...............................................................................................................................................................46
Figure 15. Juvenile fish passage barriers block juvenile Chinook salmon access to important
rearing habitat in non-natal tributaries (Mike Perfetti) .......................................................................................................50
Figure 16. Healthy juvenile chinook sampled from a non-natal tributary in 2018 (Chris Gregersen) .....................50
Figure 17. The Lower Russell Road Levee Setback Project is a multi-benefit project that
provides flood risk reduction, habitat restoration, and recreational enhancements. ..................................51
Figure 18. Progress towards the watershed revegetation goals established in the WRIA 9
Re-Green the Green Strategy. .................................................................................................................................................................54
Figure 19. Stormwater-induced mortality in coho salmon in Miller Creek, Normandy Park ..........................................57
Figure 20. Before and after Phase II restoration of Seahurst Park in the City of Burien ....................................................58
Figure 21. Duwamish Gardens created 1.3 acres of shallow water rearing habitat in a critically
important transition zone of the Duwamish Estuary. Subsequent monitoring has
documented extensive use of the site by juvenile Chinook salmon. ........................................................................61
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
7
Figure 22. Before (2013) and after (2019) restoration photos of the Big Springs Creek. ..................................................63
Figure 23. A community volunteer examines a salmon carcass as part of the Miller/Walker
Basin Community Salmon Investigation. ....................................................................................................................................66
Figure 24. The Riverview Park Project created approximately 800 ft of side channel to
increasing juvenile Chinook rearing and refuge habitat in the Lower Green River. ...................................71
Figure 25. Number of Projects by Subwatershed ...........................................................................................................................................72
Figure 26. Marine Nearshore Subwatershed Projects (Map) ................................................................................................................77
Figure 27. Duwamish Estuary Subwatershed Projects (Map) ...........................................................................................................103
Figure 28. Lower Green River Subwatershed Projects (Map) ..............................................................................................................119
Figure 29. Middle Green River Subwatershed Projects (Map) ...........................................................................................................147
Figure 30. Upper Green River Subwatershed Projects (Map ..............................................................................................................160
Figure 31. Types of monitoring used to evaluate management strategies and adapt
them as necessary ......................................................................................................................................................................................168
Figure 32. Adaptive management decision framework. .........................................................................................................................169
List of Tables
Table 1. Viable Salmon Population (VSP) Goals ............................................................................................................................................28
Table 2. Green/Duwamish and Central Puget Sound Habitat Goals. .............................................................................................31
Table 3. Marine Nearshore Subwatershed Tier 3 Projects ....................................................................................................................98
Table 4. Duwamish Estuary Subwatershed Tier 3 Projects ..................................................................................................................116
Table 5. Lower Green River Subwatershed Tier 3 Projects ................................................................................................................144
Table 6. Middle Green River Subwatershed Tier 3 Projects ...............................................................................................................158
Appendices
Appendix A: An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon
in the Green/Duwamish Watershed
Appendix B: A Synthesis of Changes in our Knowledge of Chinook Salmon Productivity and Habitat
Uses in WRIA 9 (2004 – 2016)
Appendix C: Green River Temperature and Salmon
Appendix D: WRIA 9 Climate Change Impacts on Salmon
Appendix E: Capital Project Evaluation Template
Appendix F: Monitoring and Adaptive Management Plan
Appendix G: Recovery Strategies
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
8
Foreward
On behalf of the Green Duwamish and Central Puget Sound Watershed (WRIA 9) Watershed Ecosystem
Forum, we are pleased to present this update to the 2005 WRIA 9 Salmon Habitat Plan, “Making Our
Watershed Fit for a King” (2005 Plan). The 2021 WRIA 9 Salmon Plan Update (Plan Update) represents
a renewed commitment to salmon recovery efforts in WRIA 9 and provides a science-based framework
for identifying, prioritizing and implementing salmon recovery actions over the next 10-15 years. It
refines and adds key recovery strategies based on new science and ensures resources will continue to
be directed to where they provide the greatest benefit for Chinook salmon.
The original 2005 Plan translated science into actions. Plan implementation by multiple WRIA 9
entities in the last 15 years helped leverage over $200 million of local, state and federal funding
to realign more than 2 miles of levees to reconnect floodplains, restore over 4,500 feet of marine
shoreline and revegetate 500 acres of riparian habitat. While we recognize these achievements, we
also acknowledge that salmon recovery is a long-term endeavor that requires continued coordinated
action. Chinook salmon numbers remain critically low and human population growth and climate
change are only magnifying the challenges we face in salmon recovery.
Chinook salmon are an integral part of our regional identity. The Watershed Ecosystem Forum - a
regional partnership of 17 local governments, state resource agencies, business interests and non-
profit organizations – is collectively committed to implementing actions that will improve watershed
conditions for our salmon populations. Plan implementation supports more than just salmon recovery;
it supports tribal treaty rights, community flood hazard reduction, water quality improvement, open
space protection, and outdoor recreation.
While the Green/Duwamish and Central Puget Sound Watershed has faced numerous challenges,
we are optimistic about the future of our watershed. The downstream fish passage facility at Howard
Hansen Dam, clean-up of the Lower Duwamish Waterway Superfund sites, and a regional commitment
to integrated floodplain management reflect a projected investment of hundreds of millions of dollars
over the next 10-15 years. As we work towards an improved future, we are reminded of a quote from a
historical planning guide for the Green River corridor: ROGER TABORAGENDA ITEM #6. e)
Forward edits
In third paragraph, second line, recommend inserting “and” between “business interests”
and “non-profit”
There are extra spaces in several places between words. That may be a graphics issue, but
in case it can be fixed, I found them in the following places:
i. Second paragraph, 3rd line, between “than” and “2”
ii. Second paragraph, 5th line, between “is” and “a”
iii. Third paragraph, 3rd line, between “collectively” and “committed”
iv. Fourth paragraph, 1st line between “While” and “the”
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
9
As we look at the Green River corridor, we must say, ‘This is the way the
people want it to be.’ Therefore, in each locality, someone should steadily be
asking, ‘is this the way we want it to be, now and in the future?’ The ultimate
condition of the Green River Basin should be the result of informed and far-
sighted public decisions.
River of Green, 1978
We look forward to collaborating with all our local, state, federal, and tribal partners in realizing our
collective vision for this watershed and welcoming back ever stronger runs of salmon.
Sincerely,
Councilmember Nancy Tosta
City of Burien
Co-Chair
WRIA 9 Watershed Ecosystem Forum
Councilmember Lisa Herbold
City of Seattle
Co-Chair
WRIA 9 Watershed Ecosystem Forum
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
10
Acknowledgements
Primary Authors
Matthew Goehring, WRIA 9
Kollin Higgins, King County
Doug Osterman, WRIA 9
Suzanna Smith, WRIA 9
Report Preparation
GIS Analysis: Todd Klinka, King
County
Design: Laurel Preston, King County
Watershed Ecosystem
Forum
Chris Stearns, Auburn
Tamie Deady, Black Diamond
Nancy Tosta, Burien
Jennifer Harjehausen, Covington
Matt Pina, Des Moines
Chris Searcy, Enumclaw
Lydia Assefa-Dawson, Federal Way
Dana Ralph, Kent
Dow Constantine, King County
Susan West, Normandy Park
Valerie O’Halloran, Renton
Erin Sitterly, SeaTac
Lisa Herbold, Seattle
Scott Dewhirst, Tacoma Public
Utilities
Allan Ekberg, Tukwila
Wendy McDermott, American Rivers
Katie Moxley, Boeing Company
Steve Lee, Covington Water District
James Rassmussen, Green/Duwa-
mish Watershed Alliance
Burr Mosby, King Conservation
District
Michelle Clark, King County Flood
Control District
Jeanette Dorner, Mid-Sound Fisheries
Enhancement Group
Sandy Kilroy, Port of Seattle
Max Prinsen, SHADOW
Jeff Dillon, U.S. Army Corps of
Engineers
Weston Brinkley, Green-Duwamish
Urban Waters Partnership
Cleo Neculae, Washington State
Department of Ecology
Stewart Reinbold, Washington
Department of Fish and Wildlife
Joe Miles, Washington Department of
Natural Resources
Implementation Technical
Committee
Joe Anderson, Washington State
Department of Fish and Wildlife
Kerry Bauman, King County
Katie Beaver, King County
Elizabeth Butler, Washington State
Recreation and Conservation Office
David Casey, City of Maple Valley
Jeanette Dorner, Mid Sound Fisheries
Alexandra Doty, Puget Sound
Partnership
Joseph Farah, City of Renton
Larry Fisher, Washington State
Department of Fish and Wildlife
Matthew Goehring, WRIA 9
Chris Gregersen, King County
Meara Heubach, City of Kent
Kollin Higgins, King County
Josh Kahan, King County
Katherine Lynch, Seattle Public
Utilities
Nathan Malmborg, US Army Corps
Kathy Minsch, City of Seattle
Kathryn Moxley, Boeing
Cleo Neculae, Washington State
Department of Ecology
Nikolas Novotny, Tacoma Water
Jessica Olmstead, Washington State
Department of Natural Resources
Brandon Parsons, American Rivers
Mike Perfetti, City of Tukwila
Dennis Robertson, City of Tukwila
Patty Robinson, King County
Suzanna Smith, WRIA 9
Rowena Valencia-Gica, City of Kent
Financial Support
Funding provided by the WRIA 9
Interlocal Agreement among 17
local government partners and
Cooperative Watershed Management
funds provided by the King County
Flood Control District.
Management Committee
Chris Stearns, City of Auburn
Jennifer Harjehausen, City of Covington
Lydia Assefa-Dawson, Federal Way
Toni Troutner, City of Kent
Josh Baldi, King County
Susan West, City of Normandy Park
Valerie O’Halloran, City of Renton
Susan Saffery, City of Seattle
Former WRIA 9 Leadership
Bill Peloza, City of Auburn
Marlla Mhoon, City of Covington
Dennis Roberton, City of Tukwila
Doug Osterman, WRIA 9
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
11
Executive Summary
as Threatened. Population abundance, productivity,
diversity and spatial distribution have not improved,
and in some cases have continued to decline.
A Strategic Assessment Update summarizes new
research findings that address important data gaps
identified in the 2005 Plan. New information related
to habitat use and fish productivity, climate change,
temperature, and contaminants supported a
reassessment of functional linages between priority
stressors, habitat conditions, and VSP parameters.
This information serves as the foundation for the
other core elements of the Plan Update.
Although the Plan Update maintains existing
NOAA-approved VSP goals, it introduces new 10-year
habitat goals (implementation targets) that represent
continued progress towards the long-term necessary
future conditions for achieving a viable salmon popu-
lation, as outlined in 2005 Plan. The numerical targets
for key habitats serve as a benchmark for evaluating
plan implementation over time and informing ongo-
ing adaptive management.
The Plan Update outlines a portfolio of 12 recov-
ery strategies – including embedded policies and
programs – to address priority pressures; increase
salmon abundance, productivity, and diversity; and
build long-term population resiliency. Successful
This document updates the 2005 Green/Duwamish
and Central Puget Sound Watershed (WRIA 9),
Making Our Watershed Fit for a King, Salmon Habitat
Plan. The 2005 Plan served as the blueprint for
salmon habitat recovery in WRIA 9 for 15 years. It is
fitting that the Puget Sound Regional Council award-
ed the original 2005 Plan a Vision 2020 Award. Al-
though the Plan Update reflects over a decade of new
science regarding salmon conservation and recovery
since the award, the core recovery strategies and un-
derlying scientific framework remain largely valid to-
day and continue to provide an important foundation
for salmon recovery. The Plan Update – designed to
be a stand-alone document – is intended to update,
not replace, the 2005 Plan. The two documents, along
with the 2014 Duwamish Blueprint and the 2016 Re-
green the Green, provide a science-based framework
for identifying, prioritizing and implementing salmon
recovery actions.
This document provides a status update for Green
River Chinook salmon using the National Oceanic
and Atmospheric Administration (NOAA)-approved
viable salmon population (VSP) criteria. Over 20 years
have passed since the listing of the Puget Sound
Chinook salmon evolutionarily significant unit (ESU)
under the Endangered Species Act (ESA). Despite
significant investments and large-scale restoration
projects, Green River Chinook salmon remain listed
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
12
implementation hinges on partner coordination and
investment to ensure local land use planning, capi-
tal investment programs, and community outreach
messaging are consistent with identified watershed
priorities.
An updated list of capital projects was developed
in partnership with interlocal agreement member
jurisdictions, non-profit partners, state agencies,
and others engaged in salmon recovery. The updat-
ed project list identifies 127 capital habitat projects
across the five subwatersheds. Individuals projects
are ranked within their specific subwatershed – not
across subwatersheds. Projects are tiered based on
overall benefit towards recovery and to provide con-
text for the level of financial need. Tier 1 projects have
significant potential to advance recovery and sub-
stantively contribute to habitat goals. Tier 2 and Tier 3
have moderate and limited potential, respectively, to
advance recovery and contribute to achieving habitat
goals.
The Monitoring and Adaptive Management Plan
(MAMP) outlines monitoring priorities intended to
help evaluate progress and inform strategic adapta-
tion of the recovery strategies. The MAMP establishes
a framework for (1) tracking implementation goals,
(2) assessing project effectiveness, (3) evaluating
habitat status and trends, (4) evaluating the popula-
tion status of Green River Chinook salmon, and
(4) prioritizing research and monitoring investments.
This framework will guide data collection to support
regular assessment of progress and allow the WRIA
to reassess prioritization and sequencing of recovery
actions. PHOTO: ELI BROWNELL Green River Natural Area
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
13
Chapter 1:
Background
The 2005 Green/Duwamish and Central Puget Sound
Watershed Salmon Habitat Plan, Making Our Water-
shed Fit for a King, represented the culmination of
over five years of technical reconnaissance, research,
and policy development. The Plan was a local wa-
tershed-based response to the federal government’s
1999 listing of Puget Sound Chinook salmon as
“threatened” under the Endangered Species Act. The
2005 Plan – which received a Puget Sound Regional
Council Vision 2020 Award – translated a tremendous
wealth of science into discrete policy recommenda-
tions and management actions necessary to sup-
port recovery of natural origin Green River Chinook
salmon.
The 2005 Plan provided the blueprint for Chinook
salmon recovery in the Green/Duwamish and Central
Puget Sound for 15 years. It helped watershed part-
ners leverage upwards of $200 million dollars of local,
state and federal funding for salmon recovery. Plan
implementation resulted in nearly 2 miles of levee
setbacks, over 4,500 feet of marine shoreline resto-
ration, and approximately 500 acres of revegetation.
Despite of these accomplishments, the continued
decline of Chinook salmon – both locally and region-
ally – highlights the urgent need for expanding and
accelerating recovery efforts.
This Salmon Habitat Plan Update represents the next
chapter of salmon recovery efforts in the Green/
Duwamish and Central Puget Sound Watershed. It
provides a science-based framework for identify-
ing, prioritizing and implementing salmon recovery
actions over the next 10-15 years. The integration of
over a decade of new science informed important
refinements to recovery priorities and investment
strategies outlined in the 2005 Plan. These refine-
ments reflect the watershed’s commitment to adap-
tive management and ensure that limited resources
are directed to where they can provide the greatest
benefit towards Chinook salmon recovery. Although
the focus of this plan is on Chinook salmon recovery,
implementation will also provide parallel benefits to
other salmon and steelhead.
Regional Salmon Recovery Context
This addendum updates the Green/Duwamish and
Central Puget Sound watershed chapter of the
National Oceanic and Atmospheric Administration
(NOAA)-approved 2007 Puget Sound Salmon Recov-
ery Plan. The Green River Chinook salmon popula-
tion is one of six Chinook salmon populations in the
Central/South sub-basin and one of 22 remaining
populations in the Puget Sound Chinook salmon evo-
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
14
Why does the data on salmon abundance begin to improve in 1975?
The quality of data on annual salmon population runs improves starting in
1975, when the Washington Department of Fisheries (predecessor to the
Washington Department of Fish and Wildlife) initiated data collection in
response to the federal court mandate to develop and share annual abun-
dance of salmon returning to individual rivers in Puget Sound.
Chinook Salmon
Recovery Timeline
Puget Sound
Chinook
listed as
threatened
species
Population 2016
Seattle: 689,000
Green River 1963
Howard Hanson Dam Built
Lowest number
of natural origin
spawners (182)
recorded in the
Green River
1870 1881 1890 19091906 1913 1916 1950 197519631919 2009
0k
750k
250k
150k
50k
550k
450k
350k
650k
1975WILD PUGET SOUND CHINOOK SALMON RUN SIZE
Puget Sound
Wild Chinook
Population
Logging 1881
First splash dam built for logging in Washington
Railroad 1870
Northern Pacific Railroad survey triggers land boom
Harbor Island finished 1909
Much of the Duwamish Estuary filled for industry
Population 1890
Seattle population 42,000
Population 1950
Seattle 465,000
Green River 1919
Private levee construction begins
throughout the river
Cedar River 1916
Diverted away from the Green River,
into Lake Washington
White River 1906
Diverted out of the Green River into the Puyallup River
201920161999
Natural spawners
Green River
Chinook salmon escapement
1803_8972a_Green_River_Salmon_Timeline_WRIA9.ai
WRIA 9 Chinook
salmon abundance goals:
1,000–4,200
27,000
returning natural origin
spawning adult fish by 2025
returning natural origin
spawning adults by 2055
Source: WDFW salmonid
stock inventory
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
1975198019851990199520002005201020152020Figure 1. Green/Duwamish and Central Puget Sound Chinook salmon recovery timeline.
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
15
lutionary significant unit (ESU). NOAA ESU recovery
criteria require status improvement in all populations
and two to four viable populations in each of the
sub-basins.
The Puget Sound Partnership (Partnership), the state
agency leading the region’s collective effort to restore
and protect Puget Sound, serves as the regional
salmon organization for the 15 lead entities within the
Puget Sound, advised by the Puget Sound Salmon
Recovery Council. The Partnership co-manages the
Puget Sound Acquisition and Restoration Fund and
works in partnership with the Governor’s Salmon
Recovery Office and Recreation and Conservation Of-
fice (RCO) on statewide salmon recovery issues. The
Salmon Recovery Funding Board, facilitated by the
RCO, is a Governor-appointed 10-person board with a
primary responsibility for making grants and loans for
salmon habitat projects and salmon recovery activ-
ities. This salmon recovery infrastructure, and the
grant and loans for habitat project implementation,
is supported through state and federal funds from
NOAA’s Pacific Coast Salmon Recovery Fund and the
State Salmon Recovery Funding. Additionally, within
Puget Sound, salmon recovery is supported by the
Puget Sound Acquisition and Restoration Fund.
WRIA 9 Organizational Structure
Water Resource Inventory Area (WRIA) 9 serves as
a lead entity for salmon recovery under the State
of Washington’s watershed-based framework for
salmon recovery established under RCW 77.85. It is
a watershed-based organization comprised of local,
state and federal partners, non-profit organizations,
business interests, and citizens. Per statute, WRIA
9 is mandated to “compile a list of habitat projects,
establish priorities for individual projects, define the
sequence for project implementation, and submit
these activities as the habitat project list. The com-
mittee shall also identify potential federal, state, local,
and private funding sources.”
The 17 local governments within the Green/Duwa-
mish and Central Puget Sound Watershed (WRIA
9) formalized a partnership under an interlocal
agreement (ILA) (WRIA 9 ILA) in 2000. The initial
ILA (2000–2005) funded a strategic, science-based
assessment of the watershed and a long-term, com-
prehensive recovery plan for the Green River Chinook
salmon population. Following approval of the 2005
Salmon Habitat Plan, the local government partners
forged a 10-year ILA from 2007–2017 intended to
guide plan implementation and adaptive manage-
ment. The ongoing commitment to watershed-based
salmon recovery was renewed in 2017. The current
ILA extends through 2025.
The WRIA 9 Watershed Ecosystem Forum (WEF)
serves as the advisory body for plan implementation
and adaptive management. It is comprised of elected
officials from the ILA partners and other watershed
stakeholders. The Management Committee serves as
the executive committee to the WEF. It directs work
plan development and manages the ILA budget.
The Implementation Technical Committee (ITC) is
a technical- and policy-focused subcommittee that
supports plan implementation and adaptive manage-
ment. The ITC defines monitoring and research prior-
ities, interprets new technical information as it relates
to salmon recovery, and provides science-based
recommendations to WEF.
Equity and Social Justice
Salmon recovery efforts within the Green/Duwa-
mish and Central Puget Sound watershed overlap
with numerous communities experiencing deeply
entrenched social, economic, and environmental
inequities. Race and place influence opportunity
and quality of life. People of color, immigrants, and
low-income residents experience inequities in access
to key determinants of equity – including access to
parks and natural resources. Although best available
science drives project identification and prioritization,
equity and social justice (ESJ) issues should be care-
fully considered. Applying an ESJ lens to habitat pro-
jects can help ensure salmon recovery efforts align
with ESJ initiatives and do not inadvertently reinforce
existing inequities. Integrating residents and commu-
nity-based organizations into project design can help
build community support and achieve multi-benefit
outcomes that advance equity in the watershed.
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
16
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
17
Chapter 2:
Green/Duwamish and Central Puget Sound Watershed
– A Snapshot
The Green/Duwamish and Central Puget Sound Wa-
tershed spans 575 square miles of diverse landscape,
ranging from an industrial waterfront to preserved old
growth forest. This section provides a high-level over-
view of the five subwatersheds (Upper Green, Middle
Green, Lower Green, Duwamish, and Nearshore) that
serve as an overarching framework for salmon
recovery. It also provides context for the strategies
and actions outlined in subsequent chapters. For
a more comprehensive review, please refer to the
Chapter 3 of the 2005 Salmon Habitat Plan.
The Upper Green Subwatershed extends up-
stream of Howard Hanson Dam, river mile 64.5, and
represents approximately 45 percent of the Green/
Duwamish River watershed. Historically, the Upper
Green provided important spawning and freshwater
rearing habitat for Chinook salmon. It encompasses
between 78-165 miles of suitable instream habitat,
although fish passage has been blocked by a combi-
nation of the Tacoma Headworks Diversion Dam and
Howard Hanson Dam since 1911.
Checkered ownership in the subwatershed compli-
cates coordinated land management. Although the
primary land use is commercial forestry, the Upper
Green also serves at the primary municipal water
supply for the City of Tacoma. Additionally, a road and
railroad alignment have constrained the river in plac-
es, the Upper Green Subwatershed is largely undevel-
oped and contains relatively high-quality, yet currently
inaccessible, aquatic habitat. Long-term recovery of
Chinook salmon depends on providing fish passage to
the Upper Watershed.
The Middle Green Subwatershed extends
between river miles 64.5 and 32. It includes the two
largest tributaries to the Green River – Soos and
Newaukum Creeks. Low-velocity habitats, including
off-channel habitats, sidechannels, floodplain
wetlands, and river edge, provide important rearing
and refuge habitat for juvenile Chinook.
Land use in the Middle Green is characterized pre-
dominantly by agricultural lands and rural residential
development. Land use development adjacent to river
and tributaries has resulted in loss of riparian habitat
contributing to elevated instream temperatures. Mod-
ified flow regimes have disrupted natural transport
of large wood and sediment. In addition, a network
of training levees designed to restrict lateral channel
migration – as opposed to prevent flooding – have
simplified channel complexity along some reaches.
Restoring floodplain connectivity and expanding rear-
ing habitat capacity are critical to increasing Chinook
salmon productivity.
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
18
The Lower Green River Subwatershed flows
from river mile 32 downstream to river mile 11. It
serves as an important migratory corridor for adult
upstream migration and juvenile downstream migra-
tion. Available rearing and high-flow refuge habitat is
limited compared to the Middle Green – many reach-
es currently lack large wood, side channels, sloughs,
and slow-water edge habitats. The Lower Green River
also supports Chinook salmon spawning upstream of
approximately river mile 25.
The Lower Green River valley is the second largest
warehouse and distribution center on the west coast.
The floodplain is heavily developed and character-
ized by a combination of industrial, commercial, and
urban residential development. The 1906 diversion
of the White River left the floodplain perched above
the mainstem channel and disconnected historic
off-channel habitats. An extensive network of flood
control facilities (27 miles of levees and revetments)
currently restricts floodplain connectivity and limits
channel complexity. A corresponding loss of riparian
tree canopy contributes to elevated instream temper-
atures. An integrated, multi-benefit approach to flood-
plain management is needed to balance fish habitat
needs with flood risk reduction and other community
priorities in this subwatershed.
The Duwamish Subwatershed extends from river
mile 11 at the Black River Pump Station downstream
to the north end of Harbor Island. The extent of salt
influence – as depicted by the saltwater wedge – var-
ies based on flows and tide, but can extend upstream
as far as the Foster Bridge (RM 10.2) during low flows
and high tides. Juvenile Chinook rear in the estuarine
waters of the Duwamish as they undergo the physio-
logical transition from fresh to saltwater habitats.
Extensive dredge and fill of the Duwamish has
transformed the estuary into an industrial waterway,
characterized by straightened channel with armored
banks and a lack of riparian tree canopy. More than
98 percent of the historical tidal wetlands have been
transformed into commercial and industrial land uses.
The U.S. Environmental Protection Agency declared
the Lower Duwamish Waterway a “Superfund” site
in 2001 due to legacy contamination, and clean-up
is not expected to be complete for another decade.
Sediment cleanup and restoration of estuarine habitat
are essential to increasing juvenile Chinook salmon
survival.
The Nearshore Subwatershed extends 92 line-
ar miles from Elliott Bay south to the Pierce County
boarder, including Vashon Island. It represents the
interface of upland and aquatic habitats; shallow
productive zone and deep water habitats; and fresh
and marine waters. The nearshore is a dynamic
environment – shaped by wave energy and sediment
transport that support high species diversity. A variety
of habitats, including beaches, eelgrass beds, and
pocket estuaries, provide important foraging habitat
and a migratory corridor to the Pacific Ocean for
juvenile Chinook salmon.
Development along the marine shorelines has altered
significant stretches of the nearshore ecosystem.
Approximately two-thirds of WRIA 9 shoreline is ar-
mored, which has disrupted natural sediment delivery
and transport. The intensity of shoreline development
varies substantially across the watershed. The highest
intensity development is located along the industrial
and commercial shores of Elliott Bay. The mainland
shoreline from Seattle south to Federal Way is pre-
dominantly residential. Vashon Island is predominant-
ly rural. Improving nearshore habitat is essential to
increasing juvenile salmon residence times, growth
rates, and overall marine survival.
AGENDA ITEM #6. e)
HowardHansonDam
Tacoma HeadworksDiversion Dam
Smay CrSunday CrJenkins Cr.Snow CrSawmill CrMiller CrMill CrTwin Ca
m
p
C
rChampion CrTacom
a
Cr
Gale Cr
LakeSawyer
Deep CrCoal CrBear CrNewauku m C r
Newauku m C r
Charley C r
N. Fork Green RiverLi
t
t
l
e
Soo
s
C
r
Duwa
m
ish River
Green RiverRavensdaleCr.Big Soo
s
C
r
Lake
Youngs
Puget
Sound
Elliott
Bay
HowardHansonReservoir
SEATTLE
Seattle
KENT
VashonIsland
Maury
Island
RENTON
SEATAC
AUBURN
ALGONA
AUBURN
FEDERAL WAY
BURIEN TUKWILA
COVINGTON
DESMOINES
ENUMCLAW
MAPLEVALLEY
BLACKDIAMOND
NORMANDYPARK
405
509
518
167
99
99
18
99
5
5
5
UPPER GREEN RIVER
SUBWATERSHED
MIDDLE GREEN RIVER
SUBWATERSHED
LOWER
GREEN RIVER
SUBWATERSHED
MARINE
NEARSHORE
SUBWATERSHED
DUWAMISH
ESTUARY
SUBWATERSHED
LOCATION MAP
WRIA 4WRIA 5
WRIA 8
WRIA 10
WRIA 6
WRIA 15
WRIA 11
WRIA 23
WRIA 38
WRIA17
WRIA 26
WRIA 39
WRIA 12
WRIA45
WRIA 7
WRIA 9
13
KingCountyKingCounty
SnohomishCountySnohomishCounty
PierceCountyPierceCounty
King County Data Sources:King County Datasets: TopoWRIA, (RIVER MILES), CityKC, Wtrbdy, Wtrcrs, TNET, Tribal_lands, Urban_growth, and KC BNDRY.
Note:The use of the information in this map is subject to the terms and conditions found at: www.kingcounty.gov/services/gis/Maps/terms-of-use.aspx. Your access and use is conditioned on your acceptance of these terms and conditions.
Produced by:
King County IT Design and Civic Engagement
Figure 2
Green/Duwamish and
Central Puget Sound
Watershed
River Mile
River/creek
Major Road
Urban Growth Area Line
WRIA 9 Subwatershed Boundary
WRIA 9 Boundary
Open Water
King County Boundary
Muckleshoot Tribal Lands
VC File: smb://wlrbafs1.dnrp.kingcounty.lcl/vc/cart/Finished/REGIONS/WRIA9/2010_10202L_W9SHP_W9whsdMap.ai LPRE
GIS File:Q:\20009\WRIA9_Watershed.mxd KLINKAT
0 2 4 61
Miles
October 2020
N
0 5 10
Miles
AGENDA ITEM #6. e)
Smay CrSunday CrJenkins CrJenkins CrSnow
C
r
Sawmill CrMiller CrMiller CrMill CrMill CrTwin Ca
m
p
C
rChampion CrTacom
a
Cr
Gale CrGale Cr
LakeSawyer
LakeSawyer
Deep CrDeep CrCoal CrCoal CrBear CrBear CrNewauku m C r
Newauku m C r
Charley C rCharley C r
N. Fork Green River
N. Fork Green RiverLi
t
t
l
e
Soo
s
C
rLi
t
t
l
e
Soo
s
C
r
Duwa
m
ish River
Green RiverCovington Cr
Covington CrBig Soo
s
C
r
Lake
Youngs
Lake
Youngs
Puget
Sound
Elliott
Bay
HowardHansonReservoir
HowardHansonReservoir
NameName
SEATTLE
SEATTLE
KENT
Vashon
Island
Maury Island
RENTON
SEATAC
AUBURN
ALGONA
AUBURN
FEDERAL WAY
BURIEN TUKWILA
COVINGTON
DESMOINES
ENUMCLAW
MAPLEVALLEY
BLACKDIAMOND
NORMANDYPARK
NAME
405
509
518
167
99
99
18
99
5
5
5
King County Data Sources:Similar land use designations were combined and derived from King County GIS Center land use coverage LANDUSE_KC_CONSOL_20 based on multi-jurisdictional zoning data. Other King County datasets include TopoWRIA, (RIVER MILES), CityKC, Wtrbdy, Wtrcrs, TNET, Tribal_lands, Urban_growth, and KC BNDRY.
Note:The use of the information in this map is subject to the terms and conditions found at: www.kingcounty.gov/services/gis/Maps/terms-of-use.aspx. Your access and use is conditioned on your acceptance of these terms and conditions.
Figure 3
Land Use Designations
Green/Duwamish and
Central Puget Sound Watershed
LAND USE CATEGORIES
Produced by:
King County IT Design and Civic Engagement
KCIT DCE File: smb://wlrbafs1.dnrp.kingcounty.lcl/vc/cart/Finished/REGIONS/WRIA9/2102_10202L_W9SHP_W9_LANDUSEmap.ai LPRE
GIS Data:Q:\20009\WRIA9_Watershed.mxd KLINKAT
0 2 4 61
Miles
October 2020
N
OTHER SYMBOLS
Incorporated Area Name
River/Creek
Major Road
Urban Growth Area Line
WRIA 9 Boundary
Open Water and Name
King County Boundary
Tribal Lands
Industrial
Commercial
Mixed Use
Residential
Rural Residential
Agricultural
Public Lands
Forest
Parks, Open Space or Golf Course
Mineral Resource Lands
Aviation/Transportation
Undesignated
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
23
October, between approximately river miles 25 and
61. Spawning primarily occurs within the Lower
and Middle Mainstem Green River and Newaukum
Creeks. Additional spawning occurs in Soos, Burns
and Covington Creeks. Fish passage to the upper
watershed has been blocked by a combination of the
Tacoma Headworks Diversion Dam (1911) and Howard
Hanson Dam (1961). Although fish passage was
provided at the Tacoma facility in 2007, a downstream
fish passage facility has not been completed at
Howard Hanson Dam. The dams also block natural
gravel delivery and transport; however, available
spawning habitat does not appear to be a limiting
factor in Chinook recovery.
Egg Incubation/Emergence
Egg incubation and alevin emergence generally
occurs September through January within the same
reaches where spawning occurs. Timing is variable
and influenced by water temperatures – warmer
temperatures drive an earlier emergence. High-
flow events and sedimentation during this critical
development period can scour redds and result
in high mortality. As a result, flow management
at Howard Hanson Dam influences incubation/
emergence success.
The Green/Duwamish and Central Puget Sound
Chinook salmon life cycle provides a common thread
linking together a diverse watershed. Each of the five
distinct subwatersheds plays a critical role in the Chi-
nook salmon life cycle. Recovery of a viable salmon
population hinges on collective action across the
watershed to improve aquatic habitat. The concep-
tual life cycle model presented in the 2005 Salmon
Habitat Plan remains an important tool for assess-
ing aquatic habitat needs in relationship to priority
stressors that adversely impact survival at distinct life
history stages and across different life history types.
Understanding aquatic habitat needs throughout the
life cycle and how they relate observed bottlenecks
in survival allows recovery managers to strategically
focus limited resources where they are expected to
provide the largest benefit to recovery objectives.
Figure 5 highlights the relationship between the sub-
watersheds and specific life history phases.
Adult Upstream Migration/Spawning
Chinook salmon enter the Green/Duwamish between
July and October. Timing of river entry and upstream
migration is impacted by water temperature and flow.
Spawning generally occurs mid-September through
Chapter 3:
The Chinook Salmon Life Cycle –
Connecting a Diverse Watershed
CHRIS GREGERSON
AGENDA ITEM #6. e)
The Salmon Cycle
Spawning Incubation
and emergence
Stream
rearing
Downstream
migration
Adult
Migration
Migration
To Puget Sound
Maturation
(Marine
waters)
Nearshore
Foraging Estuary
rearing
DUWAMISH ESTUARY
SUBWATERSHED
DUWAMISH ESTUARY
SUBWATERSHED
LOWER/MIDDLE GREEN RIVER SUBWATERSHEDS
MARINE NEARSHORE
SUBWATERSHED/OFFSHORE
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
24
Juvenile Freshwater Rearing/Migration
Juvenile Chinook salmon rear in the Lower and
Middle Green subwatershed from mid-December
to mid-July. The length of the freshwater rearing
period varies among life history types (Figure 5)
and is influenced by habitat availability and flows.
Subyearling Chinook rely on low-velocity habitats,
including mainstem river margins, pools, and off-
channel habitats. Rearing habitat availability is a
limiting factor for Chinook productivity. Extensive
flood control facilities and floodplain development
have disconnected floodplain habitats, reduced
habitat complexity, and eliminated much of the
historic freshwater rearing habitat. Instream flows
influence accessibility of off-channel rearing habitats.
During low-flow periods, off-channel habitats and
floodplain wetlands may become disconnected from
the mainstem. In contrast, high-flow events may flush
juvenile Chinook downstream if they are unable to
access suitable refuge habitat. Given the connection
to instream flows, flow management at Howard
Hanson Dam can impact habitat connectivity/
availability during the rearing period.
Juvenile Estuary Rearing
Subyearlying Chinook salmon generally migrate
downstream into the Duwamish estuary between
February and July, with fry-type life histories predom-
inantly entering earlier in the year (Feb-Mar) than
parr (May-Jun). Residence times in the Duwamish
vary considerably, with some fish spending days and
others (i.e., estuarine reared fry) spending weeks to
months in the estuary. The Duwamish Estuary –
specifically the transition zone (RM 1-9) – is critical for
juvenile salmon making the physiological transition
from fresh to salt water. Juvenile Chinook salmon rely
on shallow, low gradient habitats (e.g., marshes, mud-
flats, and tidal sloughs) to escape stronger currents
and support efficient foraging and growth prior to en-
tering Puget Sound. Extensive industrial development
along the Duwamish has transformed the estuary to
an industrial waterway, resulting in extensive loss
of slow water rearing habitats and contamination
of sediments. The lack of high-quality habitat may
contribute to accelerated downstream migration and
reduced survival upon entry into Puget Sound.
Figure 4. The Salmon Cycle
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
25
(Ja n -Ju n ) (Jan-D ec-Jun) FRY (Jan-Apr)
FRY (Jan-Apr)
FRY
FRY (days)
F
RY (Jan-Apr)
S M O LT
(w e e k s )?
SMOLT
(days) ?
S M O L T
(w e e k s )
FR Y YEA RLINGPARR
(d a y s )
(t o m o n t h s )
(weeks to months)
(to weeks) ?
(days) ?
(40 mm)
RIVER
Yearling
RARE
(>105 mm)
Middle Green Parr
COMMON
(70-95 mm)
Lower Green Parr
LESS COMMON
(70-95 mm)
Estuarine Reared Fry
COMMON
(70-95 mm)
Marine Direct Fry
LESS COMMON
(40-50 mm)
PUGET SOUNDDUWAMISHLOWER GREEN
P A R R MIDDLE GREEN
(d a y s t o w e eks)
Green/Duwamish
River Chinook Juvenile
Rearing Trajectories
Green/Duwamish
River Chinook Juvenile
Rearing Trajectories
Figure 5. Primary Chinook salmon life history types in the Green River (updated and modified from
Ruggerone and Weitkamp 2004).
The most intense shoreline modifications are located
in urbanized Elliott Bay, with more natural shorelines
located along the largely rural Vashon Island.
Ocean Migration
By fall, most Green River Chinook exit the Strait of
Juan de Fuca and migrate north along the outer coast
of Vancouver Island. While Chinook salmon may
spend up to five years in marine waters, most Green
River Chinook spend two to three years at sea before
returning to spawn. In addition to predators, Chinook
salmon are subject to various commercial fisheries
during their marine migration.
Marine Nearshore Rearing
Juvenile Chinook salmon generally rear in the Puget
Sound nearshore from later winter through fall. Shal-
low nearshore habitats support foraging, growth, and
refuge from predators, while also providing a migra-
tory corridor to offshore waters. Although considera-
ble uncertainty surrounds marine nearshore habitat
use by juvenile Chinook salmon, it is widely accepted
that the early marine rearing period is a critical period
of growth that strongly influences long-term survival.
The Central Puget Sound marine nearshore waters
not only support Green River Chinook, but also at
least eight different stocks of Puget Sound Chinook
salmon. Shoreline development has extensively
modified nearshore habitat and processes in WRIA 9.
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
26
AGENDA ITEM #6. e)
ROGER TABOR
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
27
Recovery goals provide a framework from which to
evaluate both plan implementation and overall pro-
gress towards Chinook recovery. Tracking population
metrics and habitat conditions provides important
data used to evaluate current population status and
overall habitat conditions. This information serves as
a key input for informing ongoing adaptive manage-
ment.
Viable Salmon Population Criteria – Current Status and Goals
The Viable Salmon Population1 (VSP) concept – as
defined by National Oceanic and Atmospheric
Administration (NOAA) National Marine Fisheries
Service (NMFS) – provides the foundation for all
established recovery goals for Chinook salmon within
the Green/Duwamish and Central Puget Sound
Watershed. NMFS defines a viable salmon population
as a population that has a negligible risk of extinction
due to threats from demographic variation, local en-
vironmental variation, and genetic diversity changes
over a 100-year timeframe (McElhany et al. 2000). The
VSP goals outlined in this section remain unchanged
from the 2005 Plan and are presented in Table 1. They
1 NOAA technical Memorandum NMFS-NWSSC-42:
Viable salmonid populations and the recovery of evo-
lutionarily significant units.
are based on recovery planning targets developed by
a team of scientists (Puget Sound Technical Recovery
Team) appointed by NOAA to support the original
2007 Recovery Plan for Puget Sound Chinook.
Four parameters are used to assess the viability of
salmon populations: abundance, productivity, spatial
structure and diversity. These parameters are rea-
sonable predictors of extinction risk, reflect general
processes important to all salmon populations, and
measurable over time.
Abundance
Abundance is the number of individuals in the pop-
ulation at a given life stage or time. The number of
natural origin Green River Chinook spawners is the
primary abundance indicator. Chinook abundance
indicates an overall decline since before the first plan
was adopted in 2005 (Figure 6 and Table 1). In 2009,
the number of Natural Origin Spawners (NOS) was
the lowest ever recorded, with less than 200 fish. For
five of the past 10 years (2010–2019), the number of
NOS has been below the planning target range (1,000
-4,200 NOS) for WRIA 9.
Chapter 4:
Current Population Status and Recovery Goals
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
28
Table 1. Viable Salmon Population (VSP) Goals
VSP
Parameter Indicator
2006-2010
(average)
2011-2015
(average)
2016-2019
(average)
10-Year
Goal
50-100
Year Goal
Abundance Natural Origin
Spawners
1975
(average)
963
(average)
2041
(average)1000-42002 27,000
Productivity Egg-to-Migrant
Survival 2.9%8.7%5.3%a >8%>8%
Diversity
Percent Hatchery
Origin 56.4%60.6%68.2%Decreasing <30%
Proportion 5-6 yr-
old Spawners 19.2 9.6%N/A Increasing >15%
Relative
Abundance of Parr 46%30.6%32.8%a No Target3 No Target
Spatial Diversity Spawning
Distribution
Spawning in Green River mainstem
(below Howard Hanson Dam),
Newaukum Creek and Soos Creek
Spawning
above
Howard
Hanson
Dam
Maintain
spawning
distribution
Data Source: WDFW Salmonid Stock Inventory and NOAA Salmon Population Summary Database
a2016-2018
2 A range is used because the productivity of each year’s run varies depending on a variety of factors. If fish are expe-
riencing high productivity, fewer adults are needed to reach future targets than if they are experiencing low productivity,
which would require more fish returning to reach future targets.
3 No target established because it is not considered a reliable metric of diversity. However, relative abundance of fry and
parr does provide important information for projecting future abundance.
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
29
Figure 6. Green River Chinook salmon escapement.
Data Source: WDFW Salmonid Stock Inventory and NOAA Salmon Population Summary Database.
Productivity
Productivity or population growth rate is the ratio
of abundance in the next generation as compared
to current abundance. The WRIA uses WDFW data
to track egg-to-migrant survival rates as a primary
means of evaluating productivity (WRIA 9 ITC 2012).
Egg-to-migrant survival rate is defined as the pro-
portion of fertilized eggs that survive to migrate as
fry or parr into the Lower Green, as quantified by the
Washington Department of Fish and Wildlife (WDFW)
smolt trap at river mile 34. Although, the average rate
for wild Chinook populations is 10.4 percent (Quinn
2005), the WRIA set a target of 8 percent because the
elevated proportion of hatchery fish on the spawning
grounds is assumed to reduce reproductive fitness
(see VSP diversity metric below). Between 2006 and
2018, the survival rate has ranged from 0.09 percent
to 11 percent, with an average of 5.7 percent (Table 1).
While the long-term average is below the target, the
egg-to-migrant survival rate has exceeded the
8 percent target in five of the last 10 years of data.
VSP-Spatial Structure
The WRIA has not directly tracked a specific indicator
or metric for spatial structure. However, natural origin
adults predominantly spawn in Newaukum Creek
and the mainstem Green River. Recent changes to
hatchery operations will maintain the area in Soos
Creek above the weir as a natural production empha-
sis area with only natural-origin adults passed above
the weir. Adult Chinook will not be passed upstream
of Howard Hanson Dam (HHD) in order to access
the upper watershed until downstream fish passage
is provided at HHD. A 2019 Biological Opinion (BiOp)
issued by the National Oceanic and Atmospheric
Administration (NOAA) found that the construction of
a downstream fish passage facility at HHD was nec-
essary for the recovery of Chinook salmon, steelhead,
and Southern resident orcas. It sets a 2030 deadline
for construction and operation of a downstream
fish passage facility. For the spatial structure of the
population to improve, natural origin spawners are
needed within both of these areas that were part of
their historic range.
0
2,000
4,000
6,000
8,000
10,000
12,000
1990 1995 2000 2005 2010 2015 2020NUMBER OF SPAWNERSTotal spawners Natural origin 10-Yr. VSP goal (range)
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
30
VSP-Diversity
Diversity is the variety of life histories, sizes, and
other characteristics expressed by individuals within
a population. WRIA 9 has used three metrics to mea-
sure diversity:
• Percentage of hatchery origin spawners. The target
is for fewer than 30 percent hatchery origin
Chinook spawners (HSRG 2004). The target has not
been met since 2002, and since plan adoption in
2005, the proportion of hatchery fish on the spawn-
ing grounds has ranged from 35 percent to 75 per-
cent and has appeared to be increasing (Table 1);
• Percentage of juvenile Chinook that outmigrate
as parr. Based on recent analyses, this indicator is
influenced by basic habitat capacity, the number
of natural origin spawners, and the streamflows
experienced during rearing (Anderson and Topping
2018). As such, tracking the percentage of parr is
no longer recommended as a reliable metric for
evaluating diversity of the population. However, the
metric does continue to provides important popula-
tion-level information related to productivity; and
• Proportion of natural origin adults that return as
five- and six-year old fish, with a simple target of
an increasing percentage of older fish returning
over time. Since 2005, there have been no six-year
old fish, thus monitoring data reflect only five-year
old Chinook. Excluding 2009, which was an outlier
year with the lowest return of adults on record, the
proportion of five-year olds has ranged from a high
of 17 percent to a low of 1 percent (Table 1). The
average percent return from 2006 to 2015, 14.4 per-
cent, is similar to the average over the last 46 years
of 15.4 percent.
Habitat Goals – Implementation Targets
Habitat goals outline both the necessary future
ecological conditions to support a viable salmon
population and shorter term implementation targets
designed to assess plan implementation progress.
WRIA 9 developed goals for key ecological indicators
that reflect priority habitat needs and environmental
stressors that span all life stages of Chinook
salmon – adult migration, spawning, incubation and
emergence, stream rearing, downstream migration,
estuary rearing, and nearshore foraging. The
indicators and associated goals presented in Table
2 are organized by subwatershed. This Plan Update
does not outline specific goals related to marine
migration outside of WRIA 9 boundaries.
WRIA 9 developed long-term goals – or necessary
future conditions – during the development of the
2005 plan using scientific guidance developed by
the Puget Sound Technical Recovery Team. The 2004
WRIA 9 Strategic Assessment and 2005 Salmon Hab-
itat Plan summarize the full suite of necessary future
conditions to support a viable salmon population in
the Green/Duwamish and Central Puget Sound Wa-
tershed. They were not amended as part of this Plan
Update. The subset of necessary future conditions
outlined in Table 2 represents a strategic subset that
can be readily assessed related to project implemen-
tation across shorter intervals of time.
Table 2 also outlines updated short term – 10 year
– habitat targets used to directly track plan imple-
mentation. The 10-year targets were developed by
the WRIA 9 Implementation Technical Committee
based on a review priority stressors, limiting factors,
implementation progress under the 2005 Plan, and a
review of common indicators proposed for regional
tracking by the Puget Sound Partnership. Specific
targets are intended to be aspirational and reflect the
significant level of investment needed to substantive-
ly advance recovery within the watershed. The Mon-
itoring and Adaptive Management chapter summa-
rizes recommended methodology and timelines for
periodic assessments of these and other longer-term
status and trends indicators (e.g., water temperature,
contamination).
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
31
Table 2. Green/Duwamish and Central Puget Sound Habitat Goals.
Necessary Future Conditions and Implementation Targets
Habitat Indicator
Necessary Future
Cond. (2005 Plan)
10-year Target
2005 Plan
(achieved)Current Condition
Recommended 10-year
Target (2030)
Marine Nearshore
Shoreline Armor 65% of shoreline in
natural condition
Restore 13,500 ft of
shoreline (1500 ft
restored – net gain
of 70 ft of armor).
36%/33 mi of
shoreline in natural
condition
Remove 3,000 ft of hard
armor and achieve a net
reduction in hard armor.
Marine Riparian
Vegetation
65% of marine
shoreline
characterized by
riparian tree cover.
No target developed 40%/36 mi of
shoreline has
riparian tree cover
Revegetate 60 ac and/or
3.25 mi (~3.5% gain) of
shoreline.
Shoreline
Conservation
Not applicable Protect 5 mi of
shoreline. (4 mi
protected).
9.5 mi of adjacent
upland protected
as natural lands
Acquire 2 mi of shoreline
for permanent protection,
prioritizing beaches and
feeder bluffs.
Duwamish
Shallow Water
Habitat
173 ac of shallow
water habitat in the
transition zone (RM
1-10) (30% of historic)
Restore 26.5 ac
of shallow water
habitat (~6 ac
restored)
Unknown Create 40 ac of shallow
water habitat between
RM 1-10.
Riparian Forest 65% of each bank of
the river has > 165 ft
of riparian tree cover-
age (586 ac total)
No target was
developed
69 ac/12% of 165 ft
buffer contains tree
cover
Revegetate 170 ac (~29%
of 165-ft buffer)/9.8 mi of
streambank.
Lower Green
Off-Channel Habitat 45% of historical
off-channel habitat.
Restore 2.8 mi of side
channels, 450 ac of
floodplain wetlands,
and 5,039 ac of
connected 100-yr
floodplain habitat
(total of 8,839 ac of
connected 100-yr
floodplain).
Restore 16.5 ac of
reconnected
off-channel and
riparian habitat
(20.7 ac restored)
3,800 ac of
connected 100-yr
floodplain that
is accessible to
juvenile fish
Restore 240 ac of
floodplain habitat.
Side Channels:
550-ft high flow/
3,740-ft low flow
Floodplain Tributaries:
3,080 ft
Backwater: 75 ac
Floodplain Wetland:
66 ac
Other 100-yr Floodplain:
99 ac
Riparian Forest 75% of each bank
of the river to
>165 ft wide (828 ac
total)
No target was
developed
222 ac/27% of
165-ft buffer
contains tree cover
Revegetate 250 ac
(~30% of 165-ft buffer)/
8.52 mi of high-priority,
unforested shoreline
(continued on next page)
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
32
Necessary Future Conditions and Implementation Targets, continued
Habitat Indicator
Necessary Future
Cond. (2005 Plan)
10-year Target
2005 Plan
(achieved)Current Condition
Recommended 10-year
Target (2030)
Lower Green, continued
Large woody debris 1,705 pieces per mi
(21 key pieces)
No target developed.2004: 54 pieces/
mi.
2014: 48.5 pieces/
mi.
Achieve 425 pieces/mi.
Bank armor No new, decreasing
amount
No new, decreasing
amount
2014: 42 mi of
river bank armored
(17.7-mi levees;
9.8 mi maintained
revetments; 14.5 mi
of semi-armored
roads acting like
levees and natural
banks)
Set back 1 mi of levee.
Middle Green
Floodplain
connectivity/lateral
channel migration
Floodplain subject
to lateral channel
migration represents
65% of historical
conditions
Restoration of
50 ac of off-channel
habitat and riparian
vegetation (45 ac
restored)
2017: 1,751 ac or
55% of historic
floodplain
connected
Reconnect 200 ac of
floodplain as measured
by area subject to lateral
channel migration.
Riparian forest > 65% of Channel
Migration Zone (1,424
of 2,190 ac) and up
to 165 ft wide where
possible
No target developed 2005: 50.3%
2009: 50.5% of the
Channel Migration
Zone forested
Revegetate 175 ac (8% of
Channel Migration Zone).
Large wood debris 10 jams/mi No target developed 2006: 2.2 jams/mi
2015: 3.8 jams/mi
Achieve 5 jams/mi.
Bank armor No new, decreasing
amount
No new,
decreasing amount
(>1% reduction)
2004: 25%
armored
2009: 24%
armored
Set back 1 mi of revetment/
levee.
Upper Green
Fish passage Up and downstream
fish passage at
Howard Hanson Dam
Fish passage
provided (upstream
passage provided)
Upstream passage
facility complete.
Downstream
passage not
complete.
Provide downstream
passage at Howard Hanson
Dam.
Bank armor No new, decreasing
amount
No new, decreasing
amount
2004: 15% armored
2009: 15% armored
Remove/setback 0.5 mi of
bank armoring.
Table 2. Green/Duwamish and Central Puget Sound Habitat Goals. (Continued)
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
33
Chapter 5:
Strategic Assessment Update -
New Science on Priority Pressures
The 2005 Strategic Assessment provided the scien-
tific foundation for the Salmon Habitat Plan. Although
the majority of science remains relevant today, new
research findings have refined our understanding of
priority pressures and limiting factors related to Viable
Salmon Population (VSP) criteria. The 2005 Strategic
Assessment evaluated functional linkages between
priority pressures; habitat conditions; and Chinook
abundance, diversity, productivity and spatial struc-
ture. The functional linkages were used to create a
series of conservation hypotheses that outlined how
improvements in habitat conditions and natural pro-
cesses will drive changes in VSP parameters.
From 2017-2018, WRIA 9 produced a series of white
papers as addendums to summarize new research
and address priority data gaps in the original 2005
Strategic Assessment. White papers included Fish
Habitat Use & Productivity (Higgins 2017); Water
Temperature (Kubo 2017); Contamination (Colton
2018); and Climate Change (Engel, Higgins and
Ostergaard 2017). This chapter provides a summary of
the highlights of those papers as they relate to priority
pressures impacting Chinook salmon in the Green/
Duwamish Watershed. These refinements in our
understanding of priority pressures informed both the
recovery strategies presented in Chapter 6 and the
prioritization of capital projects in Chapter 7.
Priority Pressures (Basin of Focus)
Addressing priority habitat stressors is critical to
restoring a viable salmon population in the Green/
Duwamish and Central Puget Sound Watershed. The
following stressors have clear functional linkages
to one or more VSP parameters (abundance, pro-
ductivity, diversity, and spatial structure). Applicable
research and monitoring information is highlighted to
reflect new research and best available science since
the 2005 Plan.
Altered Instream Flows
(Middle Green, Lower Green)
Watershed Status
Operations at Howard Hanson Dam (HHD) and the
Tacoma Headworks diversion dam regulate instream
flows within the mainstem Green River below river
mile 64.5. Water storage, diversion, and release are
jointly managed by the U.S. Army Corps and Taco-
ma Water utility. Although flood risk reduction is the
primary mission of HHD, water storage also supports
Tacoma municipal and industrial uses, and fish con-
servation uses. In 2007, Tacoma Water’s Additional
Water Storage Project provided capacity to store an
addition 20,000 acre-feet (ac-ft) for municipal use.
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
34
Figure 7. Howard Hanson Dam spring water storage and allocation.
Water capture and storage generally occur between
late February and June 1. Figure 7 depicts how a
spring water storage target of 49,000 ac-ft is legally
allocated between municipal and fish conservation
uses. Phase 2 of the Additional Water Storage Project
(to be completed at a later date following down-
stream fish passage) would raise the conservation
pool to 1,177 feet and store an additional 12,000 ac-ft
of water. The U.S. Army Corps convenes a bi-weekly
Green River Flows Management Coordination Com-
mittee to inform water capture and a subsequent
flow augmentation period that extends from July 15 to
November depending on fall rainfall. Augmentation of
flows is intended to support Chinook salmon migra-
tion and spawning, maximize summer rearing habitat,
and minimize dewatering of steelhead redds. Lim-
ited Fish Conservation and Ecosystem Restoration
allotments frequently require tradeoffs among these
ecological benefits – especially in dry and/or warm
years with low snowpack. The Tacoma Water Habitat
Conservation Plan establishes a minimum stream
flow of 225 cubic feet per second (cfs) at the Auburn
Source: United States Army Corps of Engineers, Seattle District.
gauge. During the summer of 2015, the minimum flow
at the Auburn gauge reached 226 cfs.
Although flows are not regulated in tributaries, in-
streams flows are impacted by stream withdrawals
and groundwater wells used to support residential
and agricultural uses. In 2018, the Washington Leg-
islature passed the Streamflow Restoration Law to
offset the impacts of future permit exempt domestic
groundwater withdrawals and help restore instream
flows. The law was in response to a 2017 Washington
State Supreme Court decision (Hirst Decision) that
restricted building permits for new residential homes
that would be reliant on permit-exempt wells. The
legislature appropriated $300 million over 15 years
to support implementation of projects to improve
stream flows across the state. The Washington State
Department of Ecology is developing a Watershed
Restoration and Enhancement Plan to identify and
prioritize water offset projects in WRIA 9.
HOWARD
HANSON DAM
PROBABLE MAXIMUM FLOOD - 180,000 ac-ft
AUTHORIZED FLOOD CONTROL - 104,000 ac-ft
FISH CONSERVATION - 24,000 ac-ft
TURBIDITY POOL - 600 ac-ft
48-in. bypass pipeinvert elev. 1,069 ft
MUNICIPAL & INDUSTRIAL AWSP - 20,000 ac-ft
Dam crest
elev. 1,228 ft ELEVATION
1,224 ft
1,206 ft
1,167 ft
1,147 ft
1,141 ft
1,075 ft
1,035 ft
ECOSYSTEM RESTORATION SECTION , ac-ft
Spillway invert elev. 1,176 ft
19-ft outlet tunnel invert elev. 1,035 ft
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
35
Research/Monitoring
Flow management at HHD dictates instream habitat
conditions within the mainstem Green River. As a
result, water storage and subsequent release timing
not only impacts natural hydraulic processes, but
also influences available salmon habitat and produc-
tivity. Maintaining minimum instream flows of 250
cfs during dry summer months provides important
benefits to available fish habitat. However, associated
water capture and storage has reduced the frequency
and magnitude of high – habitat forming – flows while
prolonging the duration of moderate flows (Higgins
2017). Moderate flows between 5000-8000 cfs are not
sufficient to drive process-based habitat formation,
but do have the potential to scour redds (R2 Re -
source Consultants 2014).
Climate Change (Watershed-wide)
Watershed Status
Climate change science was not incorporated into
the 2005 Plan because future climate scenarios were
unclear. However, climate change has been the focus
of intense research, both global and regional, over
the last decades. This research highlights the need to
prepare for the current and future impacts of climate
change and incorporate what we know about climate
change into salmon recovery actions.
Climate change will directly impact salmon recov-
ery work in the Green/Duwamish and Central Puget
Sound watershed. The UW Climate Impacts Group
(Mauger et al. 2015) and others predict that Pacific
Northwest precipitation patterns will change, bring-
ing warmer, wetter falls, winters, and springs. Floods
will be more intense and more frequent, with peak
flows expected to increase by 28-34 percent by 2080.
As winters become warmer and wetter, the water-
shed is projected to shift from mixed rain and snow
to a rain-dominated basin with less mountain snow
melting earlier in the spring. The decrease in amount
and earlier disappearance of the snow pack will
exacerbate drought-like summer low flow conditions
in currently snow-dominated areas of the watershed.
Summertime rain is expected to decrease by ~22%
by 2050. A projected 4-5°F increase in air tempera-
tures will increase water temperature in both rivers
and the ocean. Nearshore and estuary areas will be
impacted by sea level rise, food web alteration and
ocean acidification. A changing climate will exacer-
bate typical climate variability, causing environmental
conditions that will negatively impact our salmonids
and their habitat. The potential impacts to various life
histories of salmonids, including Chinook salmon, as
a result of climate change are summarized in
Figure 8.
Flows above 8,800 cfs are needed
to initiate lateral channel migration
and support creation of off-channel
habitats that are critical for juvenile
Chinook rearing (Konrad et al. 2011).
Long-term juvenile Chinook outmigration data col-
lected by WDFW highlights the function relationship
between instream flows and Chinook productivity
(Anderson and Topping 2018). High flows (between
~8,000–10,000 cfs) from November through mid-Jan-
uary appear to scour eggs, sharply reducing the
overall productivity of the number of juveniles per
spawner. High flows (~6,000-8,000 cfs) during the
typical fry outmigration period (mid-January through
the end of March) reduce the number of parr pro-
duced in the Middle Green, likely because fish are
flushed into habitats downstream of the trap. The
frequency of spring flows (April through June) above
1,200 cfs appears to increase the number of parr
produced. This is likely due to increased connectivity
to off-channel habitats, like side-channels. A separate
study (R2 Resource Consultants 2013) showed that, at
flows below 1,200 cfs, side channel habitats become
less connected to the mainstem and overall habitat
complexity decreases.
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
36
Figure 8. Projected impacts to Green/Duwamish and Central Puget Sound salmon as a result of climate change.
Adapted from Beechie et al. (2012). Fish timing represents typical fish behavior.
Pink
Year 3Year 1 Year 2
Subyearling
Yearling
Climate Change Impacts on WRIA 9 Salmonids
Chinook
Coho
Chum
Steelhead
Spawn
Incubate
Rearing
Spawn
Smolt Smolt
Smolt
Rearing
Spawn
Incubate
Rearing
Smolt
Spawn
Incubate
Smolt
Rearing
Spawn
Incubate
1-2 Year Rearing
Smolt
Spawn
Incubate
Smolt
Rearing
2010_W9climate_sh_impacts.aiIncreased summer temperature may decrease growth or kill juvenile salmon where temperatures are already high and block/delay migration. May also decrease spawning fecundity (e.g. Chinook).
Decreased summer low flow may contribute to increased tempera-ture, decrease rearing habitat capacity for juvenile salmonids, and decrease access to or availability of spawning areas.
Increased winter floods may increase scour of eggs, or increase mortaility of rearing juveniles where flood refugia are not available, displace juveniles to less desira ble habitats.
Loss of spring snowmelt may
decrease or eliminate spawning
opportunities for steelhead, may
alter survival of eggs or emergent
fry for other salmonid species,
cause early dewatering of o-
channel and side channel habitats,
and reduce connectivity to the
floodplain.
Incubate
River entry
River entry
River entry
River entry
River entry
River entry
Jun.Jul.Aug.Jan.Feb.Mar. Apr. Jun.Jul.MaySept.Dec.Nov.Oct.Aug.Jan.Feb.Mar. Apr. Jun.Jul.MaySept.Dec.Nov.Oct.Aug.Ocean3-5 Years3-5 Years1-2 Years2-4 Years2-4 Years1-2 YearsOceanOceanOceanPuget Sound/OceanOceanOceanAGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
37
NATURAL SHORELINE
Current sea level
ARMORED SHORELINE
Current sea level
ARMORED SHORELINE
Future sea level
NATURAL SHORELINE
Future sea level
Forage fish
spawning habitat
Forage fish spawning
habitat migrates with
beach translation.
Forage fish
spawning habitat
Forage fish spawning
habitat entirely lost due to
armor and sea level rise
Future MHHW
Current MHHW
Former MHHW
Current MHHW
Future MHHW
Former MHHW
The Coastal Squeeze
Former
shoreline edge
Water temperatures as measured
on July 4, 2015, exceeded the
potential lethally threshold (22°C) for
salmonids downstream of the Green
River Gorge (DeGasperi 2017).
Research/Monitoring
A changing climate will exacerbate typical climate
variability causing environmental conditions that will
negatively impact our salmonids and their habitat.
The summer of 2015 likely provided a glimpse of the
future ecological conditions in the Green/Duwamish
watershed. A warm, wet winter with extreme low
snowpack levels, coupled with a dry, hot summer,
created dire conditions for salmon. (DeGasperi 2017)
The Muckleshoot Indian Tribe reported adult Chinook
salmon dying in the stream just below the Soos Creek
hatchery (H. Coccoli, pers. comm.), and Washington
Department of Fish and Wildlife (WDFW) data indi-
cated higher than typical numbers of female Chinook
mortality with high egg retention (pre-spawn mortal-
ity) (Unpublished WDFW data). Other sublethal im-
pacts associated with temperatures in excess of 17°C
can include developmental abnormalities, altered
growth rates, and non-fertilization of eggs; altered
migration timing; altered predator/prey relationship;
and reduced disease resistance.
Sea level in Puget Sound rose 20 centimeters from
1900-2008 and scientists project sea level will rise
an additional 0.6 meters by 2100. A 1-foot increase in
water surface elevation means an order of magnitude
increase in high water events—so a 100-year event
turns into a two year event (Mauger et al. 2015). Sea
level rise will have myriad effects on the marine
nearshore habitats, including increased bank/bluff
erosion, landslides, and lost nearshore habitats
(e.g., eelgrass, forage fish spawning habitat, estuary
mudflats, etc.) due to the “coastal squeeze” adjacent
to armored shorelines. In addition, increased risk of
erosion could contribute to a growing demand for
additional shoreline armoring.
Figure 9. Coastal squeeze in nearshore graphic along the Puget Sound Nearshore refers to the shallow areas
where forage fish spawn and are being squeezed out of existence by shoreline armoring and sea level rise
(Coastal Geologic Services).
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
38
A growing body of research is focusing on the po-
tential impacts of ocean acidification on the Puget
Sound ecosystem. Ocean acidification is driven by
the absorption of carbon dioxide and is expected
to impact survival, growth and behavior of marine
organisms. In addition to observed impacts to calci-
fying organisms (e.g., oysters and crab) there is more
recent evidence that ocean acidification may impair
sense of smell in salmon, impede growth in herring
and other species, and alter plankton populations –
which may have a cascading impact on marine food
webs. Experiments have shown that coho salmon’s
ability to avoid predators declines and risk of being
eaten increases in low pH waters (Dunagan 2019).
Although considerable uncertainty surrounds the
potential impacts of ocean acidification on salmon,
there is potential for it to exacerbate the issue of
marine survival.
Elevated Water Temperatures
(Watershed-wide)
Watershed Status
Water temperature is a key determinant of the bio-
logical integrity of a river – especially as it relates to
cold-water dependent salmonids. High water temper-
atures can act as a limiting factor for the distribution,
migration, health and performance of salmon. Wash-
ington State’s water quality standards are protective
of viable salmonid habitat in the Green River by
assigning a numeric criterion of 16°C, above which
the water body is considered impaired (WAC 173-
201A-602). A supplemental criterion of 13°C, in effect
between September 15 and July 1 further protects sal-
monid habitat. The widespread removal of tall, native
trees along the riparian corridor – especially in the
middle and lower Green River – allows solar-atmos-
pheric radiation to rapidly warm water as it moves
downstream below HHD. As a result, large stretches
of the Green River, Soos Creek and Newaukum Creek
regularly exceed established water quality standards
for temperature. In 2011, the Washington State
Department of Ecology developed total maximum
daily loads (TMDLs) for the Green River and
Newaukum Creek that outlined an implementation
plan for improving temperatures. Another TMDL for
Soos Creek is under development.
The Green/Duwamish experienced widespread po-
tentially lethal water temperatures in 2015 (DeGasperi
2017). In response, WRIA 9 led the development of the
Re-Green the Green: Riparian Revegetation Strategy
(2016) to emphasize the critical need for increasing
riparian canopy and to prioritize revegetation efforts
within the watershed. The strategy was adopted as
an addendum to the 2005 Salmon Habitat Plan. It
incorporated solar aspect shade maps published in
2014 by the Muckleshoot Indian Tribe to prioritize
areas where increased tree canopy – and thus shade
– could provide the largest benefit to preventing ele-
vated water temperatures. It also established reveg-
etation goals that were directly incorporated into
this Plan Update. WRIA 9 developed a Re-green the
Green grant program using Cooperative Watershed
Management funds from the Flood Control District to
accelerate revegetation efforts across the watershed.
Research/Monitoring
In addition to periodic exceedances of potential
lethal water temperatures, a review of 7-DMax water
temperatures at Whitney Bridge (RM 41.5) shows that
instream temperatures regularly exceed established
thresholds for sublethal impacts to salmon. Figure 10
shows 7-DMax temperatures from 2001-2016 in rela-
tion to key Chinook salmon life history stages. These
data suggest migration, early spawning, egg incuba-
tion, yearling and parr rearing all potentially subject
to sublethal impacts associated with elevated water
temperatures.
A literature review completed for WRIA 9 (Kubo 2017)
provides a summary of potential temperature-relat-
ed impacts to Chinook salmon. Adult fish migrating
upstream may be subject to increased metabolic
demand, delayed migration, increased disease expo-
sure, decreased disease resistance, and even direct
mortality. Spawning fish may experience reduced
gamete quality and quantity and reduced fertilization
success. Chinook eggs may be subject to reduced
embryo survival, decreased hatching-emergence
condition, increased abnormalities, and altered meta-
bolic rates. Juveniles and outmigrants may be subject
to reduced feeding and growth rates, increased dis-
ease susceptibility, and accelerated onset of smoltifi-
cation and desmoltification. Although many impacts
may be sublethal, they can contribute to an increase
in delayed mortality.
Protecting and restoring mature riparian tree canopy,
protecting cold water sources, and promoting hy-
porheic exchange between the river/floodplain and
the alluvial aquifer are essential to build ecological
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
39
Figure 10. Plot of 7-DMax water temperatures for the 2015 and 2016 calendar years measured by King County
at the Whitney Bridge station (GRT10) compared to 7-DMax temperatures measured from 2001-2014. State stand-
ards for designated uses are noted by the orange line and potentially lethal impacts are indicated by the red line.
State standards for designated uses include core summer salmonid habitats (July 1 – September 15) as well as
spawning and incubation periods (September 16 – July 1). Timing of specific Green River Fall Chinook lifestages
included below.
Source: Adapted from King County 2016.
25
20
15
10
5
0 Jan Feb Mar Apr May June July Aug Sept Oct Nov Dec Jan
INCUBATION INCUBATION
SPAWNING
ADULT UPSTREAM MIGRATION
YEARLING REARING
PARR REARINGFRY REARINGWATER TEMPERATURE (C)Chinook life stages
DMax water temperatures at Whitney Bridge station (GRT10)2001-2014
2015
2016
resilience to rising temperatures and moderate the
impacts associated with climate change. By 2080, it
is expected that the number of river miles exceeding
salmonid thermal tolerances (>18°C) will increase by
70 miles in the Green/Duwamish watershed
(G. Mauger 2016). One study suggests that warming
of 2-5.5°C could result in the loss of 5-22 percent of
salmon habitat by 2090 (O’Neal 2002).
Fish Passage Barriers (Watershed-wide)
Watershed Status:
Fish passage barriers are a critical obstacle to
Chinook salmon recovery in the watershed. The
presence of Howard Hanson Dam and the Tacoma
Headworks Diversion facility block access to approx-
imately 40 percent of the historical Chinook salmon
spawning and rearing habitat (NOAA 2019). This
barrier alone blocks access to somewhere between
78-165 miles of suitable fish habitat. The 2005 Plan
assumed fish passage would be provided by 2015. Ta-
coma completed an upstream trap and haul facility at
the headworks facility in 2007; however, downstream
fish passage at Howard Hanson Dam has not been
completed.
Predicted temperature increases,
lower summer flows and altered
precipitation patterns are likely to
exacerbate temperature-related
stress for Chinook salmon.
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
40
In 2019, the NOAA Fisheries released a biological
opinion (BiOp) that concluded U.S. Army Corps
operations at Howard Hanson Dam would “jeopardize
the continued existence of ESA-listed Puget Sound
(PS) Chinook salmon, PS steelhead, and Southern
Resident killer whales (SRKW), and that the proposed
action is likely to result in the adverse modification of
these three species’ critical habitat designated under
the ESA.” In issuing the jeopardy opinion, NOAA stat-
ed that without fish passage the population’s abun-
dance, productivity, and spatial diversity could not
achieve established viability criteria, thus increasing
the risk of extirpating the population.
In order to avoid jeopardizing ESA-listed Chinook,
the BiOp concluded that the U.S. Army Corps must
provide operational downstream fish passage no later
than February 2031. The resulting facility would be
required to satisfy established performance criteria,
including achieving 98 percent survival of all fish
passing through the facility. The BiOp states that if
established performance standards are satisfied, the
Upper Green watershed could support self-sustaining
populations of Chinook salmon and steelhead, “dra-
matically improving the likelihood that the Chinook
salmon population would achieve a highly viable
status.”
In addition to HHD, an unknown number of smaller
fish passage barriers impact Chinook salmon move-
ments within the watershed. There is a growing
recognition that a number of barriers associated with
smaller tributaries adjacent to roads, revetments
and flood control structures block juvenile access
to critical rearing habitats. One of the larger existing
barriers is the Black River Pump Station. The pump
station is a flood control facility built in 1970, located
near the mouth of the Black River. While the facility
was originally constructed with both upstream and
downstream fish passage facilities, they are outdat-
ed and currently do not meet federal fish passage
criteria (Jacobs 2020). In its current state, the facility
limits both upstream and downstream fish passage
and restricts access to over 50 miles of stream,
including Springbrook Creek, Panther Lake Creek,
Garrison Creek, and Mill Creek. Although the majority
of stream habitat is primarily suitable for coho and
steelhead, Chinook salmon have been found in the
system, and the area immediately upstream of the
facility could provide important rearing and refuge
habitat for juvenile Chinook.
Research/Monitoring
A 2019 study evaluating the use of small non-natal trib-
utaries (streams that do not support Chinook spawn-
ing) by juvenile Chinook highlighted the importance
of these habitats for both juvenile rearing and flood
refuge. Juvenile Chinook were identified in eight of the
nine tributaries sampled in the Lower Green River
basin and were found up to 480 meters above the con-
fluence with the Green River. The results demonstrated
(1) widespread use of non-natal tributaries for extend-
ed lengths of time; (2) heavily urbanized streams with a
large amount of impervious surfaces appear capable of
supporting non-natal juvenile rearing; (3) juvenile up-
stream passage is an important consideration for fish
barriers; and (4) variability in flapgate performance for
juvenile fish passage (King County 2019). A follow-up
study was funded by WRIA 9 in 2019 to assess flapgate
performance and identify potential retrofit and replace-
ment options to improve juvenile passability.
Long-term fish-in fish-out monitoring by WDFW
indicates that Chinook salmon population produc-
tivity is limited by available rearing habitat and that
parr outmigrants disproportionately contribute to
the abundance of returning adults (Anderson and
Topping 2018). Restoration of non-natal tributaries
has the potential to complement ongoing restoration
efforts in the Lower Green River mainstem to provide
additional capacity to support fry growth into parr
prior to outmigration to the Duwamish estuary. Larger
(basins >100 acres), low-gradient (<2%) tributaries
likely provide a large amount of rearing habitat and
support higher densities of juvenile Chinook (King
County 2019; Tabor et al. 2011; Tabor and Moore 2018;
Tabor, Murray and Rosenau 1989; Scrivener et al.
1994; Bradford et al. 2001).
Non-natal tributaries provide
important rearing and refuge
habitat in the Lower Green
subwatershed.
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
41
Land Conversion (Watershed-wide)
Watershed Status
Located within the greater Seattle metropolitan area,
population growth and economic development have
significantly modified the watershed, its underlying
hydrology, and the salmon habitat within it. In ad-
dition to legacy impacts (Chapter 3 of 2005 Plan),
the watershed experienced tremendous population
growth and development in the 15 years since the
2005 Salmon Plan. The population of King County
population swelled approximately 25 percent, adding
an additional 444,000 residents (U.S. Census Bureau
2019; King County 2006). During the same timeframe,
46,000 new housing units were constructed in the
watershed (WA Dept. of Commerce 2017).
The extensive development pressures within the
watershed – especially in the Nearshore, Duwamish
and Lower Green watershed – have degraded large
portions of the watershed from natural conditions.
In addition to direct habitat loss, land conversion
contributes to increased impervious coverage and
stormwater runoff. Refer to the Stormwater section in
this chapter for additional information on stormwater
impacts on salmon. Approximately 32 percent of the
watershed is located within established urban growth
areas (UGAs). Competition for scarce available land
contributes to high restoration/acquisition costs and
the loss of restoration priorities to redevelopment
pressures.
Source: King County, 2019: Juvenile Chinook Use of Non-natal Tributaries in the Lower Green River
Figure 11. Representative tributary mouth habitats associated with flapgate flood control structures. 1810_9332m_GreenRiver-TribHabitats-2.aiAGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
42
Research/Monitoring
Despite the tremendous growth and development
pressure, growth management efforts have concen-
trated new housing construction within urban growth
areas. Only about 3 percent of housing units con-
structed in the watershed since the 2005 Plan have
occurred outside of UGAs (WA Dept. of Commerce
2017). While this is a positive outcome, a compreo-
hensive assessment of changes in forest cover and
impervious surfaces has not been completed since
2006. In addition, the basin-wide effectiveness of
critical area and shoreline protections has not been
assessed. A WRIA 9-funded study of marine shoreline
development from 2016-2018 observed a net increase
in shoreline armoring and permit compliance rates
below 50 percent (King County 2019). Additional
information about the status of marine shorelines is
presented in the Shoreline Armoring section.
Levees and Revetments (Middle and
Lower Green)
Watershed Status
An extensive network of flood containment and train-
ing levees and revetments protect economic develop-
ment and agricultural land in the Lower and Middle
Green River valleys. In total. there are approximately
36 miles of levees and revetments in the watershed.
Over 27 miles of facilities provide flood protection
for the Lower Green River valley – the second larg-
est warehouse and distribution center on the west
coast. The valley contains $7.3 billion of structures
and associated content, supports over 100,000 jobs,
and generates an annual taxable revenue of $8 billion
(Reinelt 2014).
Flood control facilities degrade floodplain function
and reduce habitat complexity. They disconnect large
portions of the historical floodplain, off-channel hab-
itats, and tributaries – all important juvenile salmon
rearing and refuge habitats. Associated vegetation
maintenance standards limit riparian revegetation
and contribute to elevated instream temperatures.
Facilities also disrupt sediment delivery and filtration,
water storage and recharge, and large wood input to
the river channel. In addition to the direct impacts of
the facilities, they also support land use development
on historic floodplains habitats.
Due to the diversion of the White and Black rivers,
much of the “connected” floodplain is perched above
the river channel and only connected during very
high flows. Current flows with a 100-year flood event
equate to an historic two-year event (King County
2010). At these flows, only 18 percent (3,518 of 19,642
acres) of the historic Lower Green River floodplain is
connected (Higgins 2017). The loss of juvenile ChiT-
nook salmon-rearing habitat reduces juvenile survival
and overall population productivity. Restoration of
floodplain habitat in the Lower Green River valley not
only requires levee setbacks, but also requires ex-
tensive fill removal to reconnect perched floodplains
across a larger range of flows.
Research/Monitoring
Since the 2005 Plan, studies have shown higher
growth rates for Chinook salmon accessing flood-
plains when compared to fish rearing exclusively in
the mainstem. Increased growth likely results from
increased food availability and foraging efficiency
in floodplain habitats (Henning 2004; Sommer et al.
2001; Jeffres, Opperman and Moyle 2008; and
Lestelle et al. 2005). This research also suggests that
any increased risk of stranding during retreating
flows is offset by the potential for increased growth
rates. These studies emphasize how important flood-
plain habitats are to juvenile Chinook growth and
provide an important context for understanding how
the magnitude of habitat loss in the Lower Green and
to a lesser extent in the Middle Green have impacted
juvenile Chinook production locally.
Analysis of juvenile life history success in adult Green
River Chinook salmon (2015-2017) found parr outmi-
grants disproportionately contribute to adult returns
relative to their abundance. Although parr comprised
3-56 percent of the out-migrating juveniles, more
than 97 percent of returning adults were found to
have exhibited the parr life history. In comparison,
the parr life history is reflected in 64 and 76 per-
cent, respectively, of the adult returns in the Skagit
and Nooksack watershed (Campbell and Claiborne
2017; Campbell et al. 2019). These data indicate that
Chinook salmon life history success varies between
watersheds and that productivity (adult spawner
abundance) in the Green is currently driven by parr
production, as juveniles exhibiting the fry life history
rarely survive to adulthood.
AGENDA ITEM #6. e)
Sediment Contamination (Duwamish)
Watershed Status
Industrial and commercial development in the
Duwamish estuary not only led to dredge and fill of
historical estuarine wetlands, but also left a legacy of
persistent contaminants within the working water-
front. Two Superfund sites require additional clean-up
in the Duwamish, the Lower Duwamish Waterway
(LDW) and Harbor Island/East Waterway (EW).
Both sites contain elevated levels of polychlorinated
biphenyls (PCBs), arsenic, carcinogenic polycyclic
aromatic hydrocarbons (cPAHs), as well as dioxins
and furans. The EPA’s Record of Decision for the
LDW (2014) outlines the cleanup plan for the 412 acre
site, which includes 105 acres of dredging or partial
dredging, 24 acres of capping, 48 acres of enhanced
natural remediation and 235 acres of monitored nat-
ural attenuation. Although early action areas (Slip 4,
Terminal 117, Boeing Plant 2/Jorgensen Forge, Diag-
onal Combined Sewer Overflow [CSO], and Norfork
CSO) resulted in cleanup of approximately 50 percent
of PCB contamination, cleanup will not be completed
until after 2031. Cleanup options for the EW site are
under development.
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
43
Figure 12. Spawners-recruit plots showing abundance
of fry and parr produced based on estimated adult
Chinook salmon escapement (Anderson and Topping
2017).
An analysis of long-term juvenile outmigration data
collected by WDFW identified a density-dependent
relationship between adult spawner abundance and
relative parr abundance (Anderson and Topping
2018). Figure 6 shows that adult escapements in
excess of 3,000 fish did not generally result in
increased parr production. In contrast, fry production
was observed to be density independent. Juvenile
Chinook require rearing and refuge habitats (e.g.,
off-channel habitats, side-channels, etc.) to grow into
parr prior to outmigration. When considered in con-
cert with the Campbell and Claiborne studies, these
results highlight the importance of reconnecting
floodplains and restoring rearing habitat to increasing
Chinook returns.
Productivity in the Green/Duwamish is currently constrained by
available rearing habitat in the Lower and Middle Green rivers.NUMBER OF FRYNUMBER OF JUVENILESSPAWNERS ABOVE TRAP
0 1,000 2,000 5,0003,000 4,000 6,000 7,000
100,000
0 100,000
200,000
300,000
400,000
500,000
200,000
400,000
600,000
800,000
NUMBER OF FRYSPAWNERS ABOVE TRAP
0 1,000 2,000 5,0003,000 4,000 6,000 7,000NUMBER OF PARR100,000
0
200,000
300,000
400,000
500,000
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
44
Transport pathways carry contaminants from sources
to surface waters, as well as within surface waters.
Contaminants reach the Green/Duwamish receiving
waters via point discharges (permitted industrial,
stormwater and CSOs discharges), overland flow
(stormwater runoff), groundwater, and direct atmo-
spheric deposition, as well as by spills/leaks and
bank erosion. Fish are exposed to chemicals through
multiple routes including water passing through their
gills and/or its ingestion, direct sediment contact
and/or its ingestion, and/or through consumption
of contaminated prey. Chinook experience greater
chemical exposure during the juvenile phase than
during the adult phase due to the comparatively
different lengths of time they spend in the Duwamish
during these life stages (Colton 2018).
Although the 2005 Salmon Plan hypothesized that
sediment cleanup would benefit Chinook salmon,
limited scientific data were available on the potential
impacts of sediment contamination on productivity at
the time.
Research/Monitoring
A growing body of research findings suggests that
contaminant exposure for juvenile Chinook salmon
in the Duwamish and Elliott Bay is affecting juvenile
Chinook salmon growth, disease resistance, and
immunosuppression, and ultimately marine survival.
Juvenile Chinook salmon rearing in industrial estuary
and nearshore habitats (e.g., Duwamish, Puyallup
and Snohomish) contain elevated levels of organic
contaminants as compared to those rearing in less
developed watersheds (Skagit and Nisqually) (O’Neil
et al. 2015; Varanasi et al. 1993). Juvenile Chinook
salmon whole body PCB tissue concentrations from
the Duwamish and associated nearshore areas have
exceeded adverse impact thresholds (O’Neil et al.
2015; Johnson 2007). PCB levels in wild fingerlings
have also been shown to have significantly higher
PCB levels than their hatchery counterparts, suggest-
ing that wild Chinook have a longer residence time
within the Duwamish estuary (Nelson, et al. 2013).
An examination of 37 years of hatchery data from 20
hatcheries across 14 watersheds found 45 percent
lower smolt-to-adult survival rates for hatchery Chi-
nook that outmigrate through contaminated estuaries
as compared to uncontaminated estuaries (Meador
2014). The study evaluated the findings against the
total amount of estuary habitat, length of freshwater
habitat between each hatchery and estuary, as well
as growth rates and did not find these factors could
explain observed variation in survival rates. Because
wild Chinook – especially the fry outmigrant life his-
tory type – are more dependant on and have longer
residence times in estuarine habitat, the observed
decline in survial may be more pronounced in wild
Chinook salmon.
A recent study by scientists at the NOAA Northwest
Fisheries Science Center estimated the potential
impact remediation of the Lower Willamette River Su-
perfund site would have on Chinook salmon recovery
(Lundin et al. 2019). The study used a combination of
field and laboratory-collected exposure, growth, and
disease resistance data to estimate acute and de-
layed mortality rates for juvenile Chinook. These esti-
mates were then incorporated into a life cycle model
that estimated sediment remediation could improve
juvenile survival by 54 percent and increase popula-
tion abundance by 20 percent. This study provides a
population-scale assessment of the potential impacts
of legacy pollutants on Chinook salmon and suggests
that remediation in the Duwamish could be a signifi-
cant driver for Chinook recovery.
Figure 13. Chinook salmon that enter the
estuarine waters as fry (< 60 mm) experience
very low marine survival rates. In contrast to less
developed watersheds, estuarine-reared fry in the
Green/Duwamish are not contributing significantly
to adult returns.
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
45
The research on potential adverse impacts to juvenile
Chinook as a result of contaminant exposure is con-
sistent with a recent analysis of juvenile life histories
expressed by adult Chinook salmon in the Green/Du-
wamish River. Analysis of otoliths from returning adult
salmon allow resource managers to back-calculate
size upon entry in marine waters, allowing differentia-
tion between parr and fry migrants. Otolith collection
from adult Chinook salmon (2015-2017) indicate that
less than 3 percent of fish returning to the water-
shed entered marine waters as a fry migrant, despite
representing between 44 and 97 of the total juvenile
outmigrants (Campbell and Claiborne 2017;
Campbell et al. 2019). Additional research is needed
to assess the relative importance of contamination
in relation to other stressors (i.e., existing estuarine
habitat quality and capacity) in contributing to poor
marine survival.
Stormwater (Nearshore, Duwamish,
Lower and Middle Green)
Watershed Status
Stormwater runoff and associated hydrological
modifications resulting from forest conversion and
land use development within the Green/Duwamish
watershed adversely impact water quality and
salmon habitat. Approximately 59 and 24 percent,
respectively, of the 165-foot riparian buffer in the
Duwamish and Lower Green is characterized by im-
pervious surfaces (King Co. unpublished data, 2013).
Although watershed-wide data are not available, the
impacts associated with the loss of forest cover and
increase in impervious surfaces are not confined to
riparian areas. At the basin-wide scale, these levels
of impervious coverage can contribute to a two-three
fold increase in stormwater runoff above natural
conditions (Paul and Meyer 2001). Increased runoff
contributes to rapid changes in flows, with larger
peak flows and lower low flows; increased pollutant
transport and degradation of water quality; shifts in
benthic macroinvertebrates communities; elevated
water temperatures; increased bank erosion and
sediment transport capacity; and altered channel
morphology and hydraulics.
The majority of the development within the water-
shed – and across Puget Sound – predates existing
critical area ordinances and low-impact development
standards designed to mitigate impacts to aquatic
ecosystems. As a result, stormwater runoff is recog-
nized within the region as one of the more significant
challenges facing both salmon and Puget Sound
recovery efforts.
Research/Monitoring
Since the 2005 Plan, a significant body of research
has focused on stormwater toxicity impacts to salm-
on in urban creeks. Consistently high levels of mor-
tality (up to 90 percent) in adult coho salmon have
been observed in urban watersheds, with the extent
of mortality rate related to an urbanization gradient
and, more specifically, density of motor vehicle traffic
(Scholz 2011; Feist 2017 ). More recent studies have
connected observed mortality events to pollutants
associated with highway runoff (Scholz 2016; Peter
2018).
Research suggests that juvenile
Chinook that enter the Duwamish
as fry – as opposed to parr –
experience very low survival and
do not substantively contribute
to population abundance as
measured by adult escapement.
Chemicals of emerging concern (CECs) are another
area of emerging research. The EPA defines CECs as
“chemicals and other substances that have no reg-
ulatory standard, have been recently ‘discovered’ in
natural streams (often because of improved analytical
chemistry detection levels), and potentially cause del-
eterious effects in aquatic life (e.g., endocrine disrupt-
ers) at environmentally relevant concentrations” (EPA
2008). CECs include hormones, pharmaceuticals
and personal care products (PPCPs), and industrial
process chemicals. An analysis of juvenile Chinook
whole body tissue in several Puget Sound estuaries
detected 37 of 150 surveyed PPCPs (Meador et al.
2016). Metabolic disruption consistent with starvation
was also observed in juvenile Chinook collected ad-
jacent to waste water treatment plants in Sinclair Inlet
and the Puyallup River (Meador 2018). The potential
impacts to Chinook salmon growth, reproduction, and
behavior are not well understood.
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
46
6/2/13 3/5/15
Although Chinook salmon do
not appear vulnerable to acute
toxicity as a result of roadway
runoff exposure (Scholz 2019),
more research is needed to
evaluate potential sublethal
impacts.
Figure 14. Shoreline modification identified during Marine Shoreline Monitoring and Compliance Project (Ecology).
Although studies have shown treatment of runoff can
prevent acute toxicity, the large capital expenditures
associated with stormwater retrofits have precluded
widespread implementation. A comprehensive needs
and cost assessment for stormwater retrofit within
the Green/Duwamish and Central Puget Sound wa-
tershed was completed in 2014. The study evaluated
278 square miles of the watershed, excluding Seattle
and areas upstream of Howard Hanson Dam. An esti-
mated $210 million per year would need to be spend
over the next 30 years to build necessary regional
facilities, retrofit roads and highways, and retrofit
non-forested lands not redeveloped within the next
30 years (King County 2014).
Shoreline Armoring (Nearshore)
Watershed Status
The Green/Duwamish and Central Puget Sound
watershed encompasses 92 linear miles of marine
shoreline. Associated nearshore habitats provide not
only important rearing and migratory habitat for juve-
nile salmon, but also spawning habitat for forage fish
(e.g., sand lance and surf smelt), which are important
prey items for salmon, birds and marine mammals.
Delivery of sediment and trees from natural bluffs
helps sustain nearshore habitat complexity (beaches,
spits, eelgrass beds, etc.) and shoreline resilience to
coastal erosion and sea level rise.
The degradation of marine shorelines and associated
ecological functions has implications not only for
Chinook salmon recovery, but also for the ESA-listed
southern resident orca population. Shoreline armor
– especially along feeder bluffs – disrupts sediment
supply and transport, altering nearshore habitat
quantity and quality. Shoreline land use ranges from
commercial and industrial waterfront in Elliott Bay,
urban residential between Seattle and Federal Way,
to rural residential and undeveloped shorelines
along Vashon Island. Approximately 65 percent of the
shoreline is currently armored and only 22 of 52 drift
cells have greater than 50 percent of historical feeder
bluffs intact (King County 2019; WRIA 9 2012).
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
47
Research/Monitoring
Recent research reinforces assumptions in the 2005
Plan about the importance of nearshore habitats to
salmon. The range of physical and biological impacts
in response to shoreline armoring varies across spa-
tial and temporal scales. Shoreline armoring impacts
wrack and log accumulation, juvenile fish utilization,
forage fish spawning, beach profiles, sediment grain
size, and marine riparian vegetation. In particular,
drift cells with a high proportion of armoring tend to
be characterized by skinnier beaches, coarser sedi-
ments, fewer drift logs, fewer prey species (Dethier et
al. 2016).
Natural shorelines convey important benefits to
juvenile Chinook salmon. Small juvenile salmon
preferentially use low-gradient, unarmored shorelines
(Munsch, Cordell and Toft 2016). Riparian vegetation
associated with unarmored beaches provide a source
of terrestrial prey items for juvenile Chinook and ben-
efit forage fish egg survival by moderating substrate
temperatures and maintaining humidity (Rice 2006;
Toft, Cordell et al. 2007). Even small-scale beach
restoration projects (i.e., Olympic Sculpture Park) have
resulted in measurable increases in larval fish abun-
dance, juvenile salmon, and invertebrate diversity
as compared to adjacent armored shorelines (Toft,
Ogston et al. 2013).
The magnitude of unpermitted shoreline modifica-
tions threatens to negate investments in shoreline
restoration and undermine the goal of “no net loss”
established within the Shoreline Management Act.
From 2013-2018, the watershed saw a net increase of
364 feet of shoreline armor despite armor removal
and restoration of 382 feet shoreline during the same
timeframe. Only 42 percent of observed shoreline
modifications were permitted by local governments
prior to construction (King County 2019).
Although juvenile Chinook from the Green/Duwamish
River have been observed to use the marine shore-
lines throughout Central Puget Sound, considerable
uncertainty surrounds the relative importance of
non-natal coastal streams and pocket estuaries. A
study in the Whidbey Basin found abundant use of
non-natal coastal streams (32 of 63 streams) by juve-
nile Chinook. The presence of juvenile Chinook was
influenced by (1) distance to nearest natal Chinook
salmon river; (2) stream channel slope; (3) watershed
area; and (4) presence and condition of a culvert at
the mouth of a stream. The importance of non-natal
coastal streams to juvenile Chinook salmon dropped
significantly beyond 7 km from the mouth of a Chi-
nook bearing river (Beamer, et al. 2013). Additional
research is needed to prioritize non-natal coastal
streams in WRIA 9 with respect to potential contribu-
tion towards Chinook salmon recovery.
Despite the recognized
importance of natural shorelines
and significant regional
investment in armor removal,
WRIA 9 continues to experience a
net increase in shoreline armoring.
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
48
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
49
WRIA 9 developed 11 overarching recovery strategies
to organize watershed priorities and guide future
investments. These strategies outline priority areas
of focus intended to advance salmon recovery over
the next 10-20 years. Recovery strategies are not
prioritized. Implementation across the portfolio of
recovery strategies is necessary to address priority
pressures; increase salmon abundance, productivity,
and diversity; and build long-term population resil-
iency. Successful implementation hinges on partner
coordination and investment to ensure local land use
planning, capital investment programs, and commu-
nity outreach messaging are consistent with identi-
fied watershed priorities.
WRIA 9 hosted a series of subwatershed workshops
to review and update policies and programs from
the 2005 Salmon Habitat Plan. Revised policies and
programs are organized by recovery strategies – as
opposed to subwatershed – to reduce redundancy
and improve alignment with other Puget Sound
salmon plan updates. This structure is intended to
provide project sponsors and other recovery part-
ners a streamlined communication tool for a shared
understanding of what needs to happen, where,
and what policy considerations are necessary at the
local and regional level to advance Chinook salmon
recovery.
Strategy: Restore and Improve Fish Passage
Location: All Subwatersheds
Fish passage barriers block access to important
spawning and rearing habitat and can exacerbate
localized flooding issues. Legacy transportation and
flood control infrastructure were not regularly de-
signed for fish passage and/or elevated flood flows
associated with climate change. Although address-
ing fish passage barriers was a priority in the 2005
Plan, a 2018 U.S. Supreme Court ruling affirmed that
the State has a treaty-based obligation to address
culverts under state-maintained roads in order to
preserve tribal harvest rights within their usual and
accustomed areas. This ruling has reinforced the
need and elevated the urgency for addressing identi-
fied barriers in a systematic and strategic manner.
Chapter 6:
Recovery Strategies
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
50
Figure 15. Juvenile fish passage barriers block
juvenile Chinook salmon access to important rearing
habitat in non-natal tributaries. Photos: Mike Perfetti.
Figure 16. Healthy juvenile Chinook (right) and coho
(left) salmon sampled from a non-natal tributary in
2018. Photo: Chris Gregersen.
Programs
»Fish Passage Barrier Removal
WRIA 9 partners should work towards a compre-
hensive inventory of fish passage barriers in the
Green/Duwamish and Central Puget Sound Wa-
tershed, and prioritize barrier removal across the
watershed to maximize the benefit of fish passage
investments. Although the majority of existing
barriers in the watershed impact coho salmon
and steelhead, special consideration should be
given to removing barriers to non-natal tributary
rearing habitats. Recent fish monitoring studies
have demonstrated the importance of non-natal
tributaries to juvenile Chinook and remedying these
barriers will expand available rearing habitat and
increase Chinook productivity. Recent fish moni-
toring studies have demonstrated the importance
of non-natal tributaries to juvenile Chinook (King
County 2019; Tabor and Moore 2018) and reme-
dying these barriers will expand available rearing
habitat and increase Chinook productivity.
Many partner jurisdictions do not have the capacity
to implement a programmatic approach to barrier
identification and removal; instead, barrier removal
is driven by infrastructure repair needs and local
capital improvement programs. Some, such as the
City of Seattle, have an inventory and prioritized list
of fish passage barriers but lack sufficient funding
for implementation. To support a more compre-
hensive approach to fish passage, WRIA 9 partners
should leverage available technical assistance
from Washington Department of Fish and Wildlife
(WDFW) Fish Passage and King County Fish Pas-
sage Restoration Programs to assess and prioritize
barriers for removal outside of their scheduled
capital improvement programs to expedite high-
priority barrier removals. Jurisdictions should apply
for funding for high-priority projects through the
Brian Abbott Fish Barrier Removal Board. Regional
coordination among WRIA 9 partners on fish barrier
removal priorities should help identify synergies
and accelerate barrier removal in priority subwa-
tersheds. Programmatic improvements within the
County Fish Passage Restoration Program may
support increased efficiencies within other jurisdic-
tions. Fish passage accomplishments and lessons
learned should be shared regularly to expedite bar-
rier identification and increase coordination across
the watershed.
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
51
Policies
»Fish Passage (FP) 1: Provide efficient and safe fish
passage where built infrastructure (e.g., road cross-
ings and flood control facilities) intersects instream
habitats. Fish passage design considerations
should not only facilitate adult upstream migration,
but also ensure juvenile salmonid access to rearing
habitat provided in non-natal tributaries. Project
sponsors should use WDFW Water Crossing Design
Guidelines (2013) to assess feasibility and support
alternative development.
Strategy: Protect, Restore and Enhance Floodplain Connectivity
Location: Lower and Middle Green
The process of channel migration within the floodplain
creates side channels, back-water sloughs, and other
off-channel habitats that are critical for juvenile salm-
on rearing and refuge. Floodplains also facilitate an
exchange of nutrients and organic material between
land and water, and provide important flood storage
capacity that can mitigate flood damages to adjacent
communities. The
historic loss of flood-
plain habitat within
the Green/Duwamish
watershed resulted
in a loss of habitat
complexity, increased
peaks flows and water
velocities, and a loss of
groundwater storage
and important cold
water recharge during
summer months. Flow
regulation at Howard
Hanson Dam and the
diversion of the White
River into the Puyallup
River has reduced the
frequency and mag-
nitude of flood events
and left much of the
floodplain perched well
above the current river
channel. Reconnecting
floodplains and restor-
ing floodplain habitats
is essential to increas-
ing both the available
rearing habitat and
corresponding salm-
on productivity of the
system.
Figure 17. The Lower
Russell Road Levee Setback
Project is a multi-benefit
project that provides flood
risk reduction, habitat
restoration, and recreational
enhancements.
PSE Corrid
o
r
T
r
ail
Russell Road
Green River
Natural Resources AreaGreenRiver
S 2 3 1 s t / S 2 2 8th St
S .2 1 2 t h S t.
Habitat Area A
(Main Channel Edge)
Scour Deflectors
Relocated Van Doren's
Landing Park
Hand-Carry
Boat Launch
Relocated
Trailhead
Setback Levee
1
2
3
4
5
6
KOA Campground
Habitat Area B
(Backwater)
MAJOR PROJECT ELEMENTS
LOWER RUSSELL LEVEE SETBACK
Grading Contour (1 ft.)
Floodw all
OHW
Habitat Wood
Eddy Feature and Number
Pump and Discharge Site
New Van Doren's Park Boundary
Green River Trail
Levee Trail
Secondary Trail
Road Improvement
Wetland
Updated 08/1/2019
Grading Plan 5/3/18
1
0 500 ft.
N
AGENDA ITEM #6. e)
Setback :
Relocation of the toe of the
levee/revetment landward of
ordinar y high water to
provide for increased erosion
and channel migration.
100-year flood elevation
with setback levee
Existing 100-year
flood elevation
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
52
Programs
None identified. Implementation relies on individual
capital projects that will be identified in project list.
Policies
»Floodplain Connectivity (FC) 1: Support
multi-benefit flood risk reduction projects that also
enhance salmon habitat by allowing rivers and
floodplains to function more naturally. Multi-benefit
projects can (1) reduce community flood risk;
(2) provide critical salmon habitat; (3) increase
floodplain storage; (4) improve water quality;
(5) replenish groundwater; (6) expand public rec-
reation opportunities; and (7) strengthen commu-
nity and ecological resilience to extreme weather
events due to climate change.
»FC2: Wherever possible, flood protection facilities
should be (re)located away from the river edge to
reconnect floodplains and re-establish natural riv-
erine processes. During conceptual design of alter-
natives, project sponsors should evaluate opportu-
nities to pursue relocation of existing infrastructure
and real estate acquisition to support levee set-
backs. A process-based approach to restoration is
ideal for species recovery; however, where a levee
setback is infeasible due to the constraints of past
land use activity, alternative facility designs (e.g.,
levee laybacks) should strive to incorporate plant-
ing benches and wood structures that mimic lost
ecosystem services and improve critically needed
edge habitat.
»FC3: Local government should utilize critical areas
and shoreline regulations and associated land use
policies to protect creek riparian areas and asso-
ciated floodplains to increase the flood storage
capacity of these areas.
»FC4: Vacating and relocating roads should be
evaluated as tools to support salmon restoration
priorities where impacts are negligible and/or can
be mitigated. Coordinating transportation infra-
structure improvements with salmon habitat needs
(e.g., floodplain reconnection and fish passage) can
improve outcomes and reduce project costs. Road
vacation policies should be updated to consider
level of use and road standards.
Strategy: Protect, Restore, and Enhance Channel Complexity and Edge Habitat
Location: Lower, Middle and Upper
Green
Flood protection facilities (e.g., Howard Hanson Dam,
revetments, and levees) and loss of riparian habitat
have disrupted sediment transport, simplified hab-
itat complexity, contributed to a loss of rearing and
refuge habitat, and impeded natural recruitment of
spawning gravels. Although process based restora-
tion is preferred, ongoing intervention is necessary to
replace/mimic natural processes where they cannot
be restored.
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
53
Programs
»Middle Green River Gravel and
Wood Supplementation Program
The U.S. Army Corps of Engineers and Tacoma Pub-
lic Utilities should continue gravel and wood sup-
plementation in the Middle Green River to account
for disruption of natural sediment transport and
wood recruitment caused by Howard Hanson Dam.
Up to 14,000 tons of spawning gravels are deposit-
ed annually at two sites located near river mile 60,
just downstream of the Tacoma Headworks Facility.
High flows during the winter months engage the
deposited gravel and naturally distribute it down-
stream. Regular monitoring of gravel distribution
should inform quantity, size gradation, and timing to
maximize benefits for salmonids.
The U.S. Army Corps Corps should continue to
transport large wood (> 12 in. diameter; > 20 ft. in
length; >4 ft. diameter root ball) that is stranded
in the reservoir to below the Tacoma Headworks
Facility. Large wood increases channel complexi-
ty, provides habitat for juvenile fish, and provides
nutrients and substrate for aquatic insects. The
upper watershed is heavily forested and large
wood is transported to the reservoir during high
flow events, but is unable to move downstream of
the dam without intervention. Existing quantities of
large wood downstream of the dam remain signifi-
cantly below recommended wood volumes (Fox
and Bolton 2007) to support salmon recovery. Peri-
odic surveys should be completed to monitor large
wood volumes and ensure project success.
Policies
Channel Complexity (CC) 1: Project designs
should incorporate best available science related
to climate change predictions and anticipated
changes to seasonal instream flow patterns to
enhance channel complexity and edge habitat
across a range of flows. Lower spring and summer
flows could make restored rearing habitat inacces-
sible during juvenile Chinook outmigration. Special
consideration should be given to project designs
that ensure juvenile salmon rearing habitat remains
accessible in low flow years.
»CC2: For habitat restoration projects calling for the
addition of large woody debris, placement of wood
should consider risk to river users, such as boaters
and swimmers.
Strategy: Protect, Restore, and Enhance Riparian Corridors
Location: All Subwatersheds
Healthy riparian corridors provide a critical role in pro-
viding cool and clean water for salmon. Riparian vegeta-
tion shades instream habitat and moderates water tem-
peratures; reduces erosion by stabilizing streambanks;
captures rainwater and filters sediment and stormwater
pollutants; provides terrestrial nutrient and food inputs;
and is a source of large wood, which is critical to habitat
complexity. Restoring riparian corridors is essential to
addressing high summertime water temperatures and
building long-term resilience to predicted changes as-
sociated with climate change. The Washington State De-
partment of Ecology (Ecology) developed total maximum
daily loads (TMDLs) for the Green River and Newaukum
Creek in 2011 that outlined an implementation plan for
improving temperatures. Another TMDL for Soos Creek
is under development. Refer to the “Integrate Agricultur -
al Protection and Salmon Recovery Initiatives” strategy
for a discussion of riparian corridors within agricultural
lands.
Programs
»Re-Green the Green Revegetation Program
The 2016 Re-Green the Green Strategy prioritizes
riverine, estuarine and marine areas for revegetation,
establishes interim goals, and outlines strategies for
securing necessary funding. Riparian revegetation
priorities are based on the solar aspect shade maps
developed by the Muckleshoot Indian Tribe (2014). This
effort identified and prioritized shorelines where shade
is critically needed to reduce instream water tempera-
tures that frequently exceed water quality standards.
WRIA 9 should continue to run an annual grant pro-
gram that supports program implementation across
priority shoreline areas. As of 2020, approximately
$500,000 of annual Cooperative Watershed Manage-
ment Funds provided by the King County Flood Con-
trol District have been set aside to support Re-Green
the Green project implementation by WRIA 9 partners.
This funding is intended to provide a baseline level of
revegetation funding that can be leveraged to access
other sources of funding. Riparian revegetation proj-
ects help improve water quality, lower water tempera-
tures, stabilize shorelines, contribute insects (prey) for
juvenile salmonids, increase stormwater infiltration,
and improve aquatic habitat quality when trees fall into
the river.
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
54
acres
revegetated
*414 (17%) acres out of the 2,384 acre goal established in the 2016 Re-Green the Green Strategy. The goal
reflects a proportion of the total riparian buer (developed and undeveloped) that has less than 50% tree cover.
15 watershed partners have revegetated 414* acres along
75,314 linear feet (14.3 miles) of shoreline
in the Green/Duwamish watershed—that’s nearly
5 Foster Golf Courses or
235 Sounders soccer fields of new
revegetated shoreline!
SINCE 2015
17%83% acres left to revegetate
Green Duwamish Revegetation2015-2020 PROGRESS REPORT
Figure 18. Progress towards the watershed revegetation goals established in the WRIA 9 Re-Green the Green Strategy.
»Implement coordinated and comprehensive
approach to noxious/invasive weed removal
along river and marine shorelines
WRIA 9 partners should coordinate with the King
County Noxious Weed Removal Program to prior-
itize and sequence weed removal efforts through
the watershed. Noxious weed control should be
conducted in parallel with priority riparian reveg-
etation efforts. Ongoing invasive removal on res-
toration sites is critical until native plants become
established (~ five years).
Invasive plants spread quickly, impede growth and
establishment of natives, and degrade riparian
habitats by destabilizing riverbanks and reducing
tree canopy needed to help maintain cool water
temperatures. Priority species impacting the ripar-
ian community in the Green/Duwamish include
knotweed species (Class B), purple loosestrife
(Class B), policeman’s helmet (Class B), English ivy
(Class C), Himalayan blackberry (Class C), and reed
canary-grass (Class C).
»Long-term Restoration Site Stewardship and
Maintenance
WRIA 9 partners should explore potential funding
sources for a professional stewardship/mainte-
nance crew to provide long-term site maintenance
of restoration sites across the watershed. Salmon
recovery funding generally does not provide for
site maintenance beyond several years, and main-
tenance typically falls outside the scope of regular
park maintenance operations. A shared mainte-
nance crew would provide cost savings to jurisdic-
tions for maintenance of the growing portfolio of
restoration sites.
Priority tasks for a crew would include invasive
species removal, planting as needed, and litter
cleanup. In addition to these basic functions, this
crew could play an important role in helping to
manage the growing challenge of encampments
within the Green River corridor. This program would
ensure a regular staff presence at restoration sites
to assist with outreach and public safety in addition
to enhancing long-term ecological outcomes. In
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
55
addition, a shared crew would address stewardship
and maintenance needs at sites that are not
suitable for citizen volunteers.
Policies
»Riparian Corridor (RC) 1: Protect and enhance ri-
parian corridors to help achieve temperature water
quality standards established to protect salmon mi-
gration, spawning and rearing. Local governments
should support implementation of the Green River
and Newaukum Creek TMDLs by protecting and
re-establishing mature riparian vegetation within
established stream buffers.
»RC2: Revisit levee vegetation guidelines to im-
prove revegetation opportunities along flood
facilities. Guidelines must balance the critical need
for riparian shade (i.e., Ecology TMDL) with the
need to inspect the structural integrity of facilities
and maintain public safety. Remote sensing (i.e.,
ground-penetrating radar, drones, or boat inspec-
tions) may provide a viable alternative to traditional
visual inspections that require a clear zone.
»RC3: Project sponsors who receive WRIA 9 fund-
ing should request funding for up to three years
post-construction maintenance funding for plant
establishment, and should document the ability to
maintain habitat restoration and protection projects
to ensure long-term objectives are achieved. Main-
tenance may include, but is not limited to, noxious
weed and invasive plant control, revegetation, and
deterrence of undesired uses such as dumping and
occupancy that can damage habitat.
»RC4: River corridor trails should be compatible with
salmon recovery priorities. Trail design standards
should balance the need for riparian tree canopy to
maintain cooler water temperatures with needs for
important recreational view corridors and sight-
lines for user safety. Trail design/placement should
also not preclude reconnection of critically needed
floodplain habitats. Trails offer residents an oppor-
tunity to connect with the river; interpretive signage
should highlight the presence of salmon and the
ecological importance of riparian and floodplain
habitat.
»RC5: Encourage regional efforts to develop a Bon-
neville Power Authority (BPA) mitigation program
for power transmission impacts across Puget
Sound. The BPA has a significant footprint within
the Upper Watershed and the Soos Creek Basin
where vegetation management and tree removal
under transmission lines precludes adequate ripari-
an canopy cover. Although the BPA has established
mitigation programs for Columbia basin operations,
a comparable program does not exist within Puget
Sound.
Strategy: Protect, Restore, and Enhance Sediment and Water Quality
Location: All Subwatersheds
Clean, cold water is essential for salmon growth and
survival. A growing body of evidence suggests clean-
up of legacy industrial contamination and stormwater
pollution control may improve early marine survival
and increase Chinook productivity. Recent scientific
literature suggests contaminant exposure pathways
(e.g., legacy industrial contamination, stormwater run-
off, municipal wastewater discharges, etc.) are having
sublethal and lethal impacts on juvenile Chinook
salmon. Although the acute toxicity of stormwater
runoff to coho salmon in urban watersheds is well
documented, potential sublethal impacts to juvenile
Chinook salmon as a result of contaminate exposure
pathways are not well understood.
Programs
Green/Duwamish Watershed Pollution Loading
Assessment (PLA)
Ecology should continue to lead development of
a pollutant loading assessment (PLA) that will
(1) include a watershed-based model to evaluate
cumulative effects of pollution; (2) assess relative
contribution of toxic pollutants from different
sources/pathways in the watershed; and (3) help
prioritize source control efforts. The PLA is essential
to maximizing effectiveness of Lower Duwamish
Waterway cleanup and avoiding subsequent recon-
tamination.
The PLA is an interim strategy for improving water
quality – it is not a TMDL or another regulatory
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
56
instrument. It represents a foundational effort that
will inform future actions to address source control
issues. Following its completion, WRIA 9 partners
should coordinate with Ecology to address priority
pollutant sources within their jurisdictions.
Implement Pollution Identification and Control
(PIC) Programs
The Vashon-Maury Pollution Identification and Con-
trol (PIC) program provides incentives (technical
support and financial) to replace or repair failing
septic systems, and address other pollution sources
(e.g., animal waste) contributing to water quality
degradation in the marine nearshore. Failing or
inappropriately sited septic systems have resulted
in water quality concerns and closure of beach and
shellfish harvest areas – especially within Quarter
Master Harbor. While the direct impact on shellfish
harvesting is a human health concern, the water
quality pollution can negatively affect various parts
of the nearshore ecosystem that supports Chinook
salmon.
Although the 2005 Salmon Plan focused on Quarter
Master Harbor, PIC programs should be expanded
to other nearshore areas as warranted to identify
pollution sources, provide technical support, and
offer financial incentives to remedy failing septic
systems and other sources of pollution. Over the
last decade, investments made by Public Health—
Seattle & King County and other partners have
resulted in improved water quality and reopening
of 493 acres of shellfish harvest areas.
Creosote Removal Program
WRIA 9 organizations should partner with the
Washington Department of Natural Resources
Creosote Removal Program to identify and remove
creosote-treated debris and derelict structures from
marine and estuarine waters. Creosote structures
leach chemicals and can create toxic conditions
for organisms that live within beach and marine
sediments, as well as disrupt the marine foodweb.
Studies have found creosote exposure can contrib-
ute to mortality of herring eggs and alter growth
and immune function of juvenile salmonids. Dere-
lict structures can also interrupt sediment transport
and displace aquatic vegetation.
Since adoption of the 2005 Plan, the program has
removed over 21,000 tons of creosote debris and
8.0 acres of overwater structures from Puget Sound.
However, thousands of derelict creosote pilings re-
main within Puget Sound. WRIA 9 partners should
continue efforts to inventory and prioritize focus
areas based on concentration of creosote debris
and potential impacts to forage fish and juvenile
salmon rearing.
Policies
»Water Quality (WQ) 1: Promote Low-Impact Devel-
opment (LID) and green infrastructure (natural and
engineered systems) to address stormwater runoff.
Given the magnitude of development constructed
prior to existing stormwater controls, extensive
stormwater retrofits are needed to address legacy
sources of water pollution. LID techniques should
mimic, where possible, pre-disturbance hydrologi-
cal processes of infiltration, filtration, storage, evap-
oration and transportation. LID techniques include:
• Vegetation conservation: native vegetation and
small-scale treatment systems;
• Site design: clustering of buildings and narrower
and shorter roads;
• Retention systems: bioretention, bio-swales, rain
gardens, wetlands and vegetated roofs;
• Porous or permeable paving materials: sidewalks,
trails, residential driveways, streets, and parking
lots; and
• Rainwater catchment: rain barrels and cisterns.
Green Infrastructure: Green
infrastructure is an approach to
water management that protects,
restores, or mimics the natural
water cycle. Green infrastructure
is effective, economical, and
enhances community safety and
quality of life.
– American Rivers
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
57
Figure 19. Stormwater-induced
mortality in coho salmon in Miller Creek,
Normandy Park. Although stormwater
toxicity is not lethal to Chinook salmon,
potential sublethal impacts are not well
understood. Photo: Matt Goehring.
»WQ2: Support local and regional watershed-based
stormwater management initiatives (e.g., Our Green
Duwamish, STORM, etc.) that prioritize programs
and projects that can effectively demonstrate large-
scale, watershed-wide, water quantity and water
quality improvements that benefit salmon recovery.
Potential priorities include:
• Collaborative source control strategies such as
education and outreach, business inspections,
pollution prevention, and programmatic mainte-
nance;
• Regional retrofit programs focused on restoring
natural hydrology and the removal of toxics; and
• Green Stormwater Infrastructure (GSI) incentive
programs that promote the voluntary use of GSI.
»WQ3: Source control efforts across multiple sectors
(commercial, industrial, and agricultural) should
ensure that water and sediment quality support
salmon growth and survival. Source control suffi-
ciency is a critical milestone that must be achieved
to initiate contaminated sediment cleanup. Ensur-
ing implementation, maintenance, and enforce-
ment, where necessary, of source control best
management practices will help reduce pollutant
loading into water bodies and ensure pollutants
don’t undermine sediment cleanup efforts in the
Duwamish. Incentives to promote effective source
control include spill prevention and response,
technical support, and hazardous waste vouchers
to local businesses.
»WQ4: Protect and enhance rural and urban for-
ests, which provide diverse social, economic and
ecological benefits. In Rural Areas of King County,
at least 65 percent of each sub-basin should be
preserved as natural forest cover and impervious
coverage should not exceed 10 percent of a sub-
basin. Where forest cover exceeds this threshold,
the goal of no net loss in forest cover should be
pursued. In Urban Growth Areas, local govern-
ments should adopt goals to achieve 30-40 percent
ecologically healthy urban tree canopy coverage
and reduce impervious surfaces. Adopting goals
specific to riparian canopy could help prioritize
riparian restoration. Local education, outreach, and
incentive programs should be supported to in-
crease urban forestry programs and associated tree
canopy coverage.
»WQ5: Ensure cost-share agreements between
the U.S. Forest Service, Washington Department
of Natural Resources, Tacoma Water, and private
landowners are maintained and that road mainte-
nance and abandonment plans achieve sediment
reduction goals. Support opportunities to abandon
unnecessary forest roads as they are identified to
reduce overall road density.
»WQ6: Support regional and state legislative efforts
to reduce the risk of oil spills in Puget Sound and
ensure the state remains a leader in oil spill preven-
tion and response. Over 20 billion gallons of oil are
transported through Washington each year by ves-
sel, pipeline and rail. A catastrophic spill could cost
the region over $10 billion and impact over 150,000
jobs. It would also cause significant harm to aquatic
ecosystems and disrupt maritime industry, recre-
ation, and tourism.
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
58
»WQ7: Local governments should adopt the Inter-
agency Regional Road Maintenance Endangered
Species Act Program Guidelines, as amended, for
maintenance of existing infrastructure. Govern-
ments should participate in the associated Regional
Forum to support ongoing adaptive management to
improve outcomes.
Strategy: Protect, Restore and Enhance Marine Shorelines
Location: Marine Nearshore
Marine nearshore habitats, including beaches, pocket
estuaries, eelgrass beds, inlets, and deltas, provide
important rearing and migration habitat for juvenile
Chinook salmon and many other animals in Puget
Sound. They are also critical spawning habitat for
forage fish – a key prey species for Chinook salmon.
Decades of alteration and armoring of the Puget
Sound marine shoreline has reduced shoreline length
and habitat complexity, disrupted sediment supply
and transport, and eliminated forage fish spawning
habitat. Restoring natural shorelines will increase
nearshore productivity and salmon growth and
survival in the marine environment.
Figure 20. Before and after Phase II restoration of Seahurst Park in the City of Burien. Construction was
completed in 2014. Photos: Hugh Shipman.
Programs
»Develop/maintain a “Toolbox” of Shore Friendly
Alternatives for Privately-Owned Shorelines (aka
Do-it-yourself approach for residential shoreline
improvement)
WRIA 9 partners should develop a “shoreline
toolbox” to provide shoreline owners guidelines for
implementing shore friendly alternatives that clearly
outline stewardship concepts and best manage-
ment practices for private shorelines. It should not
only outline the range of alternatives for different
shoreline types (e.g., beach and bluffs), but also
highlight important design, feasibility, maintenance,
and permitting considerations when considering
shoreline improvements. Topic areas should include
native shoreline vegetation, erosion control, shore-
line access, docks, and stormwater management.
The toolbox should be designed to supplement
shoreline workshops and technical assistance
programs and could be made available online to
provide guidance to property owners who may
elect to take a “do-it-yourself approach” to shoreline
management. It should be tailored to reach private
landowners and contractors and connect them
with available local and regional resources. The
toolbox should draw from regional efforts such as
WDFW’s Marine Shoreline Design Guidelines, the
Shore Friendly King County collaborative, Green
Shores for Homes, and Green Shorelines for Lake
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
59
Washington and Lake Sammamish, and highlight
local examples of shore-friendly approaches within
WRIA 9.
»Expand Shore-Friendly Technical Assistance
and Cost-Share Programs to Accelerate Armor
Removal and Soft Shoreline Protection (aka
Supported Approach for Residential Shoreline
Improvement)
Access to technical information about shoreline
erosion and protection alternatives and the finan-
cial costs associated with marine shoreline armor
removal have been identified as key barriers to
motivating shoreline landowners to consider soft
shoreline protection. Soft shoreline protection is
less preferred than outright removal, but prefera-
ble to traditional hard armor in that it helps main-
tain and enhance some natural marine shoreline
functions (e.g., sediment transport and delivery).
Bulkhead removal is expensive and site-specific
erosion risk is not conducive to the use of standard
models or templates for soft shore protection. In
addition, many landowners and consultants are
unfamiliar with how to design/implement success-
ful soft shoreline protection projects. Technical
assistance to help landowners better understand
risk, to provide design and permitting support, and
to assist with access to cost-share funding should
help to overcome existing barriers to armor removal
on private property and promote expansion of soft
shoreline protection alternatives.
The King Conservation District (KCD) has histori-
cally provided technical assistance on environmen-
tally friendly ways to manage shoreline properties,
including shore-friendly alternatives to traditional
bulkheads. The KCD also has a cost-share incentive
program to encourage revegetation and removal of
existing armor and/or soft shore protection designs
where site-specific conditions allow. In 2020, KCD
established a Shore Friendly King County collabo-
rative between multiple partners. This program is
seen as part of a local adaptation of the regional
Shore Friendly approach to reducing marine shore-
line armoring. Although this is an existing program,
additional resources are needed to expand ca-
pacity. Landowners are identified through parallel
marine shoreline landowner workshops. Priority
should be given to currently unarmored shorelines
and armored properties where site-specific factors
(e.g., structure location, fetch, bank/bluff geology,
etc.) make armor removal and/or soft shoreline
protection alternatives feasible.
»Implement Acquisition Strategy to Protect and
Restore Functioning Nearshore Habitats
Acquisition of priority marine shorelines supports
conservation and restoration of critical nearshore
processes and rearing habitats used by multiple
stocks of juvenile Chinook – including Green/Du-
wamish Chinook. A number of planning efforts have
identified and prioritized conservation of nearshore
habitats within WRIA 9, including the Prioritiza-
tion of Marine Shorelines of WRIA 9 for Juvenile
Salmon Habitat Protection and Restoration (2006),
Vashon-Maury Island Greenprint (2007), and the
Puget Sound Nearshore Ecosystem Restoration
Project Strategies for Nearshore Protection and
Restoration in Puget Sound (2012). Although many
of the highest priority sites have been specifically
identified as unique projects within the Habitat
Plan, WRIA 9 should support opportunistic acquisi-
tion of other functioning nearshore habitats if they
become available.
Although the bulk of the acquisition opportu-
nities for functioning habitats are located on
Vashon-Maury Islands, additional opportunities
exist on the mainland nearshore. Successful im-
plementation of a nearshore acquisition strategy
requires consistent outreach to landowners and
operational flexibility to capitalize on acquisition
opportunities before they are lost. The sale of prop-
erties previously unavailable for decades frequently
can represent a once in a generational opportunity
to protect a priority stretch of marine shoreline. In-
dividual acquisition opportunities should be evalu-
ated based on ecological value/potential of near-
shore habitat and risk of development. Available
funding sources to support acquisition include King
County Conservation Futures, King County Flood
Control District Cooperative Watershed Manage-
ment Program and Coastal Erosion Program, Wash-
ington Department of Fish and Wildlife Estuary and
Salmon Restoration Program, and various Washing-
ton State Recreation and Conservation Office grant
programs.
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
60
Policies
»Nearshore (NS) 1: Avoid shoreline infrastructure or
stabilization except where demonstrated to be nec-
essary to support or protect a legally-established
primary structure, critical public infrastructure,
or shoreline use in danger of loss or substantial
damage. Support armor removal and alternative
approaches to shoreline stabilization (e.g., setbacks
and relocations) where feasible to reduce impacts
to existing natural shoreline processes. Protection
and restoration of important sediment sources
(e.g., feeder bluffs) is needed to restore nearshore
processes and sediment transport. Where the need
for bank stabilization is supported by analysis of
a geotechnical engineer, “soft” shoreline stabiliza-
tion techniques (e.g., bioengineering techniques
and vegetation enhancement) should be required
where feasible. “Soft” stabilization measures should
be designed to preserve or restore natural shoreline
processes (e.g., sediment transport). “Hard” shore-
line stabilization should only be allowed where
softalternatives do not provide adequate protection.
Refer to WDFW Marine Shoreline Design Guide-
lines, Green Shores for Homes, Integrated Stream-
bank Guidelines, and Stream Habitat Restoration
Guidelines for additional guidance.
Primary Structure: Structural
improvement that is essential to
the primary use of the property.
Structures that function as
secondary or subordinate to the
primary use of a property are
considered an accessory use.
»NS2: Encourage multiple family/neighborhood
use of docks, boat ramps, and beach access stairs.
Local jurisdictions should minimize impacts to the
nearshore marine environment by encouraging
consolidation/joint-use of structures that could
serve multiple landowners. Opportunities to pursue
joint-use should be evaluated during development
and redevelopment. Boat docks, ramps and beach
access stairs can shade aquatic vegetation, disrupt
juvenile salmon migration and foraging, alter near-
shore sediment transport and degrade nearshore
habitats (e.g., eelgrass). Possible incentives include
permit streamlining, fee reductions, and dimension-
al incentives (e.g., increased length, width, etc.).
»NS3: Jurisdictions should promote derelict vessel
prevention and coordinate with Washington State
Department of Natural Resources (WADNR) on der-
elict vessel removal. Derelict vessels can contribute
to contamination of aquatic lands, degrade water
quality, and damage sensitive aquatic habitats (e.g.,
eelgrass). Although the WADNR Derelict Vessel
Removal Program has removed more than 580 ves-
sels from marine waters, local efforts are critical to
ensuring effective prevention and rapid response.
»NS4: Support beach nourishment, where appropri-
ate, to offset interruption of natural sediment supply
and transport caused from extensive shoreline
modifications (e.g., bulkheads, etc.). Beach nourish-
ment has been used successfully to protect shore-
lines, restore natural beach profiles, and enhance
nearshore habitats.
»NS5: Support regional efforts to identify and test
actions to increase juvenile survival during outmi-
gration through Puget Sound and increase local ef-
forts to stabilize or improve foodweb function such
as forage fish habitat protection and restoration.
Strategy: Protect, Restore and Enhance Estuarine Habitat
Location: Duwamish
The Duwamish estuary provides critical rearing habi-
tat for juvenile salmon as they make the physiological
transition from fresh to saltwater habitats. Industri-
al development within the Duwamish valley drove
extensive fill of tidal wetlands, armoring of shore-
lines, and navigational dredging. The modifications
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
61
straightened the estuary and eliminated 98 percent of
the historic wetlands. Despite the magnitude of loss
of habitat, the Duwamish continues to play a critical
role in supporting juvenile Chinook salmon. Both
cleanup of legacy industrial contamination within the
Lower Duwamish Superfund Site and restoration of
shallow water rearing habitat are needed to increase
juvenile salmon survival and overall productivity with-
in the watershed.
Figure 21. Duwamish Gardens
created 1.3 acres of shallow water
rearing habitat in a critically important
transition zone of the Duwamish
Estuary. Subsequent monitoring has
documented extensive use of the site
by juvenile Chinook salmon.
Photo: Mike Perfetti.
Program
»Implement and Adaptively Manage the Duwa-
mish Blueprint
The Duwamish Blueprint outlines strategic guid-
ance for governments, businesses, non-profit or-
ganizations and citizen groups working to improve
the estuarine ecosystem and increase juvenile
salmonid productivity. It identifies approximately
100 acres of shallow water habitat restoration po-
tential within the Duwamish estuary transition zone
(RM 1-10). Many of the habitat opportunities are
conceptual and have not been prioritized. Periodic
evaluation of conceptual opportunities is needed to
elevate and refine project ideas as the Duwamish
landscape changes (e.g., Superfund cleanup, Natu-
ral Resource Damage Assessment [NRDA], and real
estate availability).
Restoration in the Duwamish is complex, expensive,
and will require flexibility, innovation, and extensive
coordination and collaboration to be successful.
The former Duwamish Blueprint Working Group,
which was convened to develop the Blueprint,
would provide a framework to facilitate coordina-
tion across key partners. WRIA 9 partners should
leverage the Blueprint Working Group to identify
opportunities to enhance partnerships to (1) pursue
larger project footprints; and (2) overcome barriers
to implementation. Given limited land availability,
WRIA 9 should opportunistically evaluate potential
acquisitions and consider elevating conceptual
projects as part of adaptive management based on
habitat benefit, acquisition feasibility, and readiness.
Policies
»Duwamish Estuary (DE) 1: Engage in the Lower
Duwamish Waterway (LDW) Superfund cleanup
process to coordinate and sequence potential
salmon habitat projects with Superfund activities
to maximize benefits to salmon recovery. Strategic
acquisition should be prioritized over habitat project
construction prior to competition of the LDW clean-
up to avoid potential contaminated sediments and
minimize potential for re-contamination.
»DE2: Engage with NRDA trustees and potentially
liable parties to inform project development and
design and maximize potential benefit to salmon re-
covery. NRDA settlements within the Duwamish will
result in large capital investments in habitat resto-
ration that should provide a significant lift to salmon
recovery. Coordination with the NRDA process will
also support identification of potential synergistic
opportunities, and help identify and resolve barriers
to maximize restoration outcomes. For example, it
may be possible to leverage NRDA settlements to
expand existing and/or planned restoration projects.
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
62
Although NRDA has a broader scope than Chinook
salmon recovery, priority NRDA habitats signifi-
cantly overlap with salmon recovery needs in
the Duwamish (e.g., estuarine marshes, intertidal
mudflats, and riparian habitats). Tracking NRDA
project implementation will be important to under-
standing the status of habitat restoration efforts
in the Duwamish. Given the existing uncertainty
associated with juvenile Chinook survival in the
Duwamish, WRIA 9 should engage with the trust-
ees to share emerging research, exchange lessons
learned in restoration, inform adaptive manage-
ment of restored sites, and identify priority sites for
restoration.
»DE3: Encourage the U.S. Army Corps of Engineers
and the Port of Seattle to identify strategies for
dredging that: (1) minimize impacts to salmon hab-
itat and (2) improve salmon habitat through use of
beneficial re-use where suitable. Soil contamination
may limit opportunities for re-use.
Strategy: Protect, Restore and Enhance Instream Flows and Cold Water Refugia
Location: Lower, Middle and Upper
Green
Green River flows are regulated to support both flood
control and water supply needs. The Tacoma Water
Habitat Conservation Plan requires maintenance of
minimum instream flows during summer months.
Although water capture and storage behind Howard
Hanson Dam (HHD) support maintenance of mini-
mum instream flows and periodic flow augmentations
during summer and early fall, it can also reduce the
frequency of high flow events that drive lateral chan-
nel migration (i.e., habitat forming flows) and availa-
bility of juvenile Chinook rearing habitat throughout
spring. Low snowpack and drought conditions ex-
acerbate already difficult tradeoffs in timing of water
release designated for fish conservation purposes.
Water temperatures also regularly exceed established
water quality standards for Salmon Core Summer
Habitat and Spawning Habitat.
Climate change forecasts predict the watershed will
experience reduced snowpack, lower summer time
flows, and elevated instream temperatures. These
changes will impact the already difficult reservoir
refill strategies at HHD, potentially putting greater
stress on refilling earlier and having a bigger impact
on juvenile Chinook habitat. Prolonged low flows
can cutoff access to critical rearing habitats and
exacerbate high instream temperatures. High water
temperatures can delay adult migrations, contribute
to increased susceptibility to disease, and even be
lethal above 23°C. Protecting instream flows and cold
water refugia is essential to strengthening watershed
resilience to climate change. Cold-water refugia are
characterized as being at least 2°C colder than the
daily maximum temperature of adjacent waters.
Programs
»Develop Watershed Management Plan to
Address Permit-Exempt Well Development
WRIA 9 partners should coordinate on develop-
ment of the Ecology’s Watershed Restoration and
Enhancement Plan to assess and offset potential
consumptive impacts of new rural, domestic water
use on stream flows in the Green/Duwamish water-
shed. Maintaining legally established minimum in-
stream flows has proven challenging during recent
years with below average precipitation. Climate
change models indicate that changes in precipita-
tion patterns could exacerbate streamflow issues
and further stress salmon.
Implementation of the plan is required to not
only offset permit exempt domestic water use,
but also provide for a net ecological benefit. The
legislature plans to direct $300 million in funding
through 2035 to benefit fish and streamflows. WRIA
9 should position itself to leverage this funding
source to support implementation of appropri-
ate projects in this plan that meet the flow or net
ecological benefit guidance and/or develop addi-
tional project elements that do so. If instream flows
remain problematic in the future, additional consid-
eration should be given to integrating other cate-
gories of water use into an expanded Watershed
Management Plan and implementation program.
»Develop a Strategy to Protect and Restore Habi-
tat in the Upper Green River and its Tributaries
Conduct a planning effort to develop a long-term,
comprehensive approach to protecting and restor-
ing ecosystem processes in the Upper Green River
subwatershed. Current checkerboard ownership
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
63
20132013
Figure 22. Before (2013) and after (2019) restoration photos of the Big Springs Creek. The project protected cool
waters from a natural spring.
complicates land management and a strategic
approach is needed to leverage the relatively intact
upper watershed to maximize benefits for salmon
and steelhead recovery. Access to the upper water-
shed has long been identified as critical to long-
term salmon recovery. However, the delay of fish
passage and the degraded condition of the lower
watersheds have resulted in limited investments in
the upper watershed.
Projected shifts in temperature and precipitation
patterns associated with climate change further
emphasize the critical importance of this landscape
to long-term salmon recovery. A number of assess-
ments should be completed to inform a strategic
approach to management of the upper watershed,
including:
• Visualizing Ecosystem Land Management As-
sessments (VELMA): Quantify long-term effects
of forest management and climate scenarios on
salmon habitat (i.e., hydrological flow regimes and
instream temperatures);
• Model intrinsic habitat value of stream segments
within the upper watershed to inform conserva-
tion and restoration priorities;
• Beaver Assessment: Assess current activity, mod-
el potential benefits, and explore potential reintro-
duction if warranted; and
• Assess important wildlife migratory corridors and
key landscape level linkages to inform acquisition
priorities.
The results of these assessments should be used to
prioritize salmon recovery investments in the upper
watershed with respect to potential land consolida-
tion, land use management changes, and potential
road abandonment.
Policies
»Stream Flows (SF)1: Support reevaluation of the
U.S. Army Corps of Engineers water storage sched-
ule and Fish Conservation Guide Curve at HHD to
increase benefits for salmonids while maintaining
downstream flood control benefits. The current
water capture period overlaps the juvenile
Chinook rearing period and impacts accessibility
and/or amount of important rearing habitats during
outmigration. Utilize the existing Green River Flow
Management Coordination Committee to assess
fish habitat needs based on best-available science
and basin-specific climate change projections.
»SF2: Protect existing cold water refugia and en-
hance water storage and hyporheic exchange
by reconnecting historic floodplain habitats to
instream habitats. These habitats facilitate heat
dissipation and provide an influx of cooler waters
to moderate seasonal fluctuations in stream tem-
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
64
peratures and flows, providing physiological and
ecological benefits for cold-water salmonids.
»SF3: Support forest management and harvest
rotation programs that increase hydrologic function
and improve base flows to minimize impacts on sal-
monid habitat, support climate change resiliency,
and maintain viable silviculture. Additional research
is necessary to quantify potential benefits.
»SF4: Manage groundwater in conjunction with
surface water withdrawals to provide instream
flows and water temperatures that support adult
salmonid spawning and juvenile rearing. Local gov-
ernments, water purveyors, and state and federal
regulators should:
• Protect groundwater resources and critical aqui-
fer recharge areas;
• Manage groundwater and surface water with-
drawals seasonally to maximize the benefits to
salmonid habitat;
• Develop drought management plans to supply
safe and reliable drinking water while minimizing
impacts to salmonids during periods of drought;
• Ensure rural domestic use does not adversely
impact salmonid habitat;
• Support water rights acquisition programs that
can augment chronic low flows; and
• Limit or preclude mining and other significant
excavation activities that could adversely impact
groundwater hydrology.
»SF5: Support expansion of reclaimed/recycled
wastewater to reduce demands on stream and
ground withdrawals. Reclaimed wastewater can
be used safely and effectively for non-drinking
water purposes such as landscape and agricultural
irrigation, heating and cooling, and industrial pro-
cessing. Reclaimed water is available year-round,
even during dry summer months or when drought
conditions can strain other water resources.
See also policies SW4-6 above.
Strategy: Expand Public Awareness and Education
Location: All subwatersheds
Education and outreach are fundamental to protect-
ing and restoring salmon. It raises awareness, builds
political support, and promotes positive behaviors
that benefit salmon. Long-term salmon recovery will
not be successful without public support. Broad-
based community support provides political leverage
to protect and expand local, state and federal invest-
ments in habitat restoration. It is also helps promote
positive behavior change and minimize behaviors that
can negatively impact salmon or undermine recovery
investments. For example, ecological gains associat-
ed with marine shoreline restoration in WRIA 9 have
been predominantly offset by new armor installations.
General outreach is not sufficient to drive widespread
and long-lasting behavior change. Targeted social
marketing strategies must identify and overcome
both real and perceived barriers to promote positive
behaviors that contribute to salmon recovery.
Programs
»Implement a Comprehensive Communications
Plan to Promote Behavior Change that Expedites
Salmon Recovery in WRIA 9
Integrate lessons learned from the regional Shore
Friendly programs into a locally adapted commu-
nication plan designed to increase implementation
of behaviors that support salmon recovery. Key
outcomes include:
• Increased public recognition of the urgency
around salmon recovery and connection to
southern resident orcas;
• Improved public understanding and stewardship
of riverine and nearshore ecosystem processes
that support salmon and forage fish;
• Technical assistance provided to interested
shoreline residents;
• Target audiences make informed decisions based
on knowledge of Shore Friendly practices, climate
resilience, and adaptation;
• A suite of tools and incentives developed to
address identified barriers to adoption of desired
behaviors;
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
65
• Messaging and outreach tailored to contractors
and realtors;
• The value of riparian vegetation is communicat-
ed to the public, including riverside landowners,
elected officials, and trail/park users; and
• Partners conducting outreach and education
receive positive reinforcement and feedback from
the salmon recovery community.
Additional effort is needed to refine target audi-
ences and develop associated social marketing
approaches. The intent of the communication plan
should be to build awareness, expand stewardship,
and promote advocacy. A regional Social Marketing
Strategy to Reduce Puget Sound Shoreline Armor-
ing was developed for the Washington Department
of Fish and Wildlife in 2015. A Green/Duwamish
River Revegetation Outreach and Engagement Plan
was developed in 2019. These plans provide an ex-
isting framework that can be expanded to integrate
other priority salmon recovery issues.
»Expand Volunteer Stewardship
Increase citizen participation through new steward-
ship programs and by expanding and supporting
existing stewardship programs that engage vol-
unteers in restoring, maintaining, and monitoring
habitat protection and restoration projects. These
projects not only benefit salmon recovery, but also
improve stormwater retention, carbon sequestration
and wildlife habitat and include important themes
and messages for participants to change behavior
at home. Local volunteer programs should:
• Foster environmental stewardship and personal
connection to salmon recovery;
• Educate people about threats to salmon and the
role of habitat in salmon recovery;
• Leverage additional resources to implement
recovery actions; and
• Expand the constituency to advocate for salmon
recovery.
The Green/Duwamish Watershed has a number of
volunteer stewardship programs that play an instru-
mental role in invasive vegetation removal and na-
tive revegetation. Many of these programs provide
long-term stewardship of large capital restoration
sites. Traditional salmon recovery funding is not
available to fund long-term (beyond two to three
years) stewardship and maintenance of restoration
sites. As a result, local funding or creative partner-
ships are essential to ensure restoration projects
achieve desired outcomes into the future.
»Expand Community Science Monitoring
Develop and implement community science pro-
grams to address data gaps and foster watershed
stewardship among residents. Community science
programs can provide capacity to collect important
long-term monitoring data while serving as an out-
reach tool to educate residents about local natural
resource issues. They can also create opportunities
to introduce students to scientific research and
provide important data for resource managers.
Since 2005, citizen science programs include:
• Beach Nearshore Ecology Team (BeachNet): The
Vashon Nature Center coordinates a forage fish
monitoring program that collects data on forage
fish presence/absence, spawning timing, beach
substrate preferences, and intertidal and upland
habitat conditions within the marine reserve. Data
are shared with WDFW and is used to inform
protection of spawning beaches. BeachNet also
contributes to shoreline restoration monitoring in
partnership with University of Washington, King
County, and the Washington State Department of
Natural Resources.
• Miller-Walker Basin Community Salmon Investi-
gation (CSI): The CSI program has conducted 10
years of salmonid spawning surveys to assess
long-term trends in salmon abundance and the
urban runoff mortality syndrome in coho salm-
on. Data are shared with local jurisdictions and
resource managers. A partnership with the UW
Tacoma Center for Urban Waters has helped
identify both the suite of toxic chemicals contrib-
uting to coho mortality and priority areas within
this watershed to focus future stormwater im-
provements.
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
66
Figure 23. A community volunteer examines a salmon carcass as part of the Miller/Walker Basin Community
Salmon Investigation. The program has leveraged community support and a partnership with the University
of Washington to advance our understanding of stormwater runoff impacts on local salmon. Photo: Miller/
Walker Stewardship Program.
»Shoreline Workshops and Technical Assistance
Implement workshops to educate target audiences
(landowners, landscapers, contractors) about
shoreline stewardship and common misconcep-
tions about shoreline erosion. Promote alternative
approaches to shoreline management that provide
for the use and enjoyment of property in a manner
that benefits fish and wildlife. Priority focus areas
include:
• Shoreline processes and salmon habitat;
• Erosion control;
• Noxious/invasive weed control;
• Revegetation guidance;
• Natural yard care; and
• Stormwater management.
Workshops should connect target audiences with
local and regional resources (e.g., technical assis-
tance) designed to overcome barriers to improving
shoreline stewardship. Materials and messaging
should be tailored to specific subwatersheds and
groups of landowners to increase effectiveness.
The Green Shores for Homes program developed
in 2015 is an available tool to guide the design of
improved shoreline conditions for Puget Sound
properties.
Policies
»Education and Stewardship (ES)1: Support edu-
cational programs that integrate watershed science
and salmon into problem-based learning exercises
for school children. These programs instill a sense
of place, encourage appreciation of natural resourc-
es, and promote environmental literacy among the
next generation of future decision makers.
»ES2: Support diverse outreach and education pro-
grams that promote awareness of salmon recovery
and positive behavior change. Programs should
employ community-based social marketing to iden-
tify and overcome barriers to targeted behaviors.
Priority focus areas include shoreline stewardship,
riparian revegetation, and stormwater manage-
ment.
Strategy: Integrate Agricultural Protection and Salmon Recovery Initiatives
Location: Lower and Middle Green
Salmon recovery and the preservation of viable
agriculture are two regional priorities that intersect
in the Middle and Lower Green floodplain and along
Newaukum Creek. King County designated over
16,295 acres of land within the Green River watershed
for agriculture within three Agricultural Production
Districts (APD). Some additional, but relatively small
amounts of agricultural activities occur within the
cities of Kent and Auburn. Over 5,763 acres of land
within the APD have been enrolled within the Farm-
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
67
land Preservation Program (FPP). Restrictive cove-
nants on FPP properties are designed to permanently
protect agricultural use and open space.
The 2005 Plan acknowledged that salmon recovery
and agricultural production operate within a shared
landscape along the Green River valley. It prioritized
sequencing of restoration projects over the first 10
years of plan implementation to focus first on existing
public lands, then on lands within the rural and urban
growth areas, and finally on lands within the APD, but
not enrolled in the FPP. The plan acknowledged that
projects that negatively impact tillable surface may
need to be reconsidered at a later date.
This Plan Update acknowledges that the implementa-
tion of high-priority salmon projects critically needed
to advance salmon recovery will result in localized
loss of existing farmland. Research indicates that
rearing habitat availability in the Lower and Middle
Green River is the primary limiting factor for Chinook
productivity within the watershed. Collaboration be-
tween agricultural and salmon recovery interests will
be necessary to identify and advance shared prior-
ities and ensure salmon and agriculture can coexist
productively within a shared landscape. Lessons
learned from other watersheds should be reviewed
for applicability within the Green River watershed.
Programs
»Farm Conservation Planning
Farm conservation plans can help landowners
protect natural resources while achieving their land
use goals. They can also help access and leverage
agricultural incentives to improve conservation
practices on agricultural lands. Priorities include
stream and wetland buffer revegetation and live-
stock management. Agriculture is widespread
throughout the Middle and Lower Green and farm-
land preservation is a regional priority. Expanding
riparian buffer revegetation on Green River valley
farms has the potential to greatly benefit salmon
recovery, especially where agricultural lands over-
lap with high priority areas identified by the Muck-
leshoot solar aspect shade maps (2014). Limiting
livestock access to stream buffers can also greatly
improve water quality and riparian conditions.
Available incentive programs include:
• King Conservation District rural services pro-
grams (e.g., Land Owner Incentive Program, Farm
Conservation Technical Assistance, and Agricul-
tural Drainage Program)
• King County Small Habitat Restoration Program
• USDA Farm Service Agency Conservation Re-
serve Enhancement Program
• King County Livestock Program (i.e., BMP cost
share)
Landowner recruitment is essential to program
success. Additional resources and strategies are
needed to expand participation.
Policies
»AG1: Protect, enhance, and restore high quali-
ty salmon habitat in the Agricultural Production
Districts in a manner that strives to reduce loss of
viable agricultural land and ensure the long-term
viability of agriculture. Projects that displace tillable
farmland should strive to provide benefits to adja-
cent farm lands in attempt to offset impacts.
Local governments, state and federal agencies,
non-profits, and special purpose districts should
work with agricultural landowners in the Agricultur-
al Production Districts to:
• Correct water quality problems resulting from
agricultural practices;
• Implement best management practices for live-
stock and horticulture;
• Prevent additional degradation or clearing of
forested riparian buffers;
• Encourage landowners to pursue voluntary sus-
tainable actions for fish, farms, and soils;
• Conduct compliance monitoring and regulatory
enforcement where necessary to protect critical
habitats;
• Identify opportunities where salmon recovery
projects can provide parallel benefits (e.g., flood
risk reduction and drainage improvements) to
adjacent agricultural lands; and
• Limit the extent of actively farmed lands dis-
placed by priority salmon restoration projects.
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
68
»AG2: Evaluate the effectiveness of the regulatory
flexibility given to agricultural landowners that
obtain a farm plan from the KCD. If the flexibility
leads to better habitat and water quality outcomes,
other opportunities should be explored to provide
additional flexibility. If the flexibility has not led to
better outcomes, the County should evaluate if
there are improvements to the regulatory structure
(e.g. require some amount of the farm plan be im-
plemented versus implementation being voluntary)
that would improve the outcomes of the flexible
approach.
Strategy: Integrate Salmon Recovery into Land Use Planning
Location: All Subwatersheds
Historical population growth and development within
the watershed displaced habitat, altered natural
hydrology, and polluted local waters. Local land use
plans should provide a blueprint for future growth
and development that is consistent with salmon
recovery. Land use decisions should reinforce the
importance of preservation of intact, functional hab-
itats and provide a pathway for restoration of priority
habitats. While the Salmon Habitat Plan is not a reg-
ulatory document, integration of identified recovery
strategies and habitat priorities within local land use
plans, policy and decision-making can accelerate
implementation and ultimately dictate success of
recovery efforts within the Green/Duwamish.
Programs
»Incentivize Voluntary Restoration Practices
Local governments and state agencies should pro-
mote landowner adoption of voluntary conserva-
tion and restoration actions through implementing
associated incentive programs. Regulatory com-
plexity, fees, access to technical assistance, and
project costs have all been identified as barriers
to expanding adoptions of voluntary best manage-
ment practices on private property. Priority areas to
address include invasive removal and native reveg-
etation along shorelines, soft shoreline stabilization,
and green stormwater infrastructure. Jurisdictions
should review existing barriers and evaluate incen-
tive opportunities, including:
• Streamlined permitting process;
• Reduced fees for restoration projects;
• Free technical assistance (e.g., engineering, plant-
ing plans, etc.);
• Cost share/financing programs; and
• Regulatory flexibility.
Voluntary adoption of best management practices
by private landowners has been sporadic. Addi-
tional targeted investments are needed to expand
implementation beyond early adopters. Improving
coordination and consistency across regulatory
jurisdictions (i.e., local, state and federal govern-
ments) is also needed to improve consistency and
reliability of the permitting process and increase
adoption of best management practices. A coordi-
nated effort across the watershed to identify target-
ed practices and assess best practices related to
available incentives could reduce costs and im-
prove efficiency. Using the Green Shores for Homes
or similar programs as an incentive-based program
to increase the number of properties that voluntari-
ly improve shoreline conditions on their property
should be explored.
»Regulatory Compliance Monitoring and Associ-
ated Enforcement
Jurisdictions should assess regulatory compli-
ance with shoreline master programs, critical area
protections, floodplain regulations, and agricultural
regulations (e.g., Livestock Management Ordi-
nance) to assess and improve protection of salmon
habitats. Regulatory compliance is fundamental to
achieving no net loss of ecological function along
marine and freshwater shorelines and to ensuring
that ongoing impacts to salmon habitat do not
undermine salmon recovery investments. Periodic
compliance monitoring should be used to assess
the status of jurisdictions and the status of local
regulatory implementation and to inform a strategic
approach to address shortcomings. If a regulatory
framework is not achieving intended outcomes,
local jurisdictions should assess changes to staffing
levels, outreach and education, technical training
for staff, interagency coordination, and enforcement
to improve compliance rates.
A WRIA 9 Marine Shoreline Monitoring and Com-
pliance Project (2018) found that only 42 percent
of shoreline modifications between 2013-2018
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
69
obtained local permits. Even fewer shoreline
modifications obtained a WDFW Hydraulic Project
Approval. Furthermore, more new shoreline armor
(mostly unpermitted) was constructed than re-
moved through restoration projects. These results
indicate that unpermitted shoreline modifications
are undermining salmon recovery investments and
overall efforts to achieve “no net loss of ecosystem
function” as required through the Shoreline Man-
agement Act. Jurisdictions should take a program-
matic approach to identify and address barriers
(e.g., permit fees, regulatory uncertainty/confusion)
to improve shoreline compliance rates and achieve
outcomes that protect salmon habitat. Coordination
and sharing of lessons learned across jurisdictions
and the larger Puget Sound are recommended to
improve efficiency.
Policies
»Land Use (LU)1: Ensure salmon recovery priorities
are integrated into long-range planning efforts,
including Shoreline Master Programs, Compre-
hensive Plans, and Open Space and Parks Plans.
Planning documents should be consistent with the
Salmon Habitat Plan and support implementation
of habitat protection and restoration priorities.
WRIA 9 should provide technical assistance to pro-
mote compatibility.
»LU2: Land use development, annexation, and cap-
ital improvement programs within the watershed
should be consistent with the salmon recovery
plan and promote progress towards achieving the
necessary future conditions (and associated imple-
mentation targets) for a viable salmon population.
Development proposals should be evaluated with
respect to impacts on key habitat indicators and
identified habitat projects for the respective subwa-
tershed.
»LU3: Local governments should use compre-
hensive plans and associated land use policies
to direct growth and development within existing
Urban Growth Areas (UGAs) to protect ecologically
important landscapes in rural areas. Specifically,
avoid future expansions to existing UGAs that could
result in additional land conversion and landscape
degradation.
»LU4: Strictly apply and improve compliance with
critical area, shoreline, vegetation conservation,
floodplain, and agricultural regulations designed to
protect important ecological habitats. Avoid use of
variances in priority areas identified for protection
and restoration in the salmon habitat plan.
»LU5: Local governments should support flexible
development tools that encourage protection and/
or restoration of ecologically important salmon
habitat. Possible tools include, but are not limited to,
transferable development rights, mitigation banking/
reserve programs, incentive zoning, Green Shores
for Homes, and Public Benefit Rating System tax
programs.
»LU6: WRIA 9 partners should incorporate sea level
rise projections into long-range planning docu-
ments, habitat project designs, and development
standards to promote long-term ecosystem resil-
iency. Nearshore habitats adjacent to armored
shorelines could be lost as water levels rise (i.e.,
coastal squeeze) if shorelines remain fixed. Low-
lying shoreline areas should be identified to support
landward migration of nearshore habitat as sea
levels rise where appropriate.
»LU7: Encourage certified development standards
(e.g., Built Green, Salmon-Safe Certification, and
Green Shores for Homes) that minimize the impacts
of urban development on the natural environment.
Incentives could include reductions in flexible
development standards, expedited permitting, and
reduced or waived permit costs.
»LU8: Incorporate Salmon-Safe Certification stan-
dards into best management practices for park and
grounds maintenance procedures. Certification is
available for parks system, golf courses, and urban
development. Salmon-Safe Certification is a peer-re-
viewed certification and accreditation program
that promotes practices that protect water quality,
improve watershed health and restore habitat.
»LU9: Local governments should evaluate shorelines
and critical areas, open space (e.g., parks and golf
courses), and public lands with respect to identified
salmon habitat priorities and notify WRIA 9 staff
prior to approving significant land use conversion, or
pursuing sale/exchange of public lands.
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
70
»LU10: Incorporate Green Shores for Homes Certifi-
cation standards into best management practices
for residential shoreline development. The WRIA
should support municipal efforts to establish a
Green Shores for Homes certification process
during permit review to help expedite permitting.
Green Shores for Homes is an EPA-funded certifica-
tion and accreditation program that was developed
by technical Shore Friendly design of shoreline
properties.
Plan Implementation and Funding
Location: All Subwatersheds
The WRIA 9 2016-2025 Interlocal Agreement provides
a framework for managing and coordinating imple-
mentation of the Salmon Habitat Plan. It recognizes
that salmon recovery transcends political bound-
aries and calls for strong collaboration between
local, state, and federal partners. Success hinges
on strong relationships, strategic coordination, and
collective action. Working effectively across such
a diverse landscape as the Green/Duwamish and
Central Puget Sound requires creative partnerships
with non-traditional partners. Leveraging shared
resources to implement multi-benefit projects will
help overcome land availability constraints and high
restoration costs.
Programs
»Basin Stewardship
Support and expand existing basin stewardship
programs across the Green/Duwamish subwater-
sheds. Basin stewards are instrumental to imple-
mentation of the salmon habitat plan. They advo-
cate for salmon recovery, coordinate across diverse
stakeholders, and build on-the-ground relationships
that facilitate large capital restoration projects. Key
tasks for basin stewardship include:
• Coordinating and implementing restoration proj-
ects;
• Coordination and collaboration across jurisdic-
tions;
• Securing grant funding (including grant writing)
for restoration and acquisition projects;
• Promoting voluntary stewardship on private
property;
• Responding to citizen inquiries concerning water-
shed issues; and
• Expanding public education and outreach oppor-
tunities
Basin stewardship covers the Middle and Lower
Green River sub-basins, Miller and Walker Creek
basins, and Vashon Island. Priorities for expan-
sion include mainland nearshore and Duwamish
sub-basins.
»Land Conservation Initiative (LCI)
The LCI represents a coordinated effort to preserve
river corridors, urban open space, trails, natural
lands, farmland and forestlands. It is a regional
collaboration between King County, cities, business
people, farmers, environmental partners, and others
to strategically preserve our last, most important
places. The initiative sets forth the goal of conserv-
ing and preserving 65,000 acres of high conser-
vation value lands throughout King County within
the next 30 years. The primary funding source is
the Conservation Futures Tax (CFT) fund, which is a
property tax on all parcels in the county.
The LCI is an important funding source for pursuing
open space acquisitions throughout the Green/
Duwamish watershed. WRIA 9 partners should
leverage the LCI to execute high-priority land
acquisitions within the Green River Corridor to
improve hydrological integrity, support salmon
recovery, and expand recreational opportunity.
Much of WRIA 9 is mapped as an “opportunity
area” where households lack access to open space.
Implementation of the LCI has the potential to align
salmon recovery investments with needed invest-
ments to address equitable access to open space
throughout the watershed.
»U.S. Army Corps Green/Duwamish Ecosystem
Restoration Program (ERP)
WRIA 9 partners should continue to engage U.S.
Army Corps leadership to advocate for appropri-
ation of funding to implement ERP projects. The
original collaborative effort resulted in identification
of 45 projects, 29 of which were carried forward in
the 2005 Salmon Habitat Plan. U.S. Congress autho-
rized $113 million in 2000 to be cost shared be-
tween the federal (65%) and local partners (35%).
Since the 2005 Plan, 13 of the original projects have
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
71
been completed, with seven completed under the
ERP authorization (e.g., North Winds Weir, Codiga
Farms, Riverview Side Channel) and six completed
by local sponsors (e.g., Porter Levee Setback, Fen-
ster levee Setback, and Gale Creek).
The Congressionally authorized ERP represents
an important federal resource to support critically
needed and underfunded salmon restoration work
in the watershed. As of 2016, the ERP has only been
allocated 8.25 percent of the authorized amount. A
2018 Green/Duwamish ERP Comprehensive Cost
Update removed 12 projects based on the ratio of
perceived habitat value to cost and the presence
of hazardous materials. However, the recommend-
ed “de-scoped” plan still includes a number of
high-priority projects including NE Auburn Creek
and the Hamakami, Turley, and Lones levee setback
projects. The cost update for the modified ERP
scope is $260 million and the congressionally au-
thorized cost adjusted for inflation is $269 million.
Figure 24.
The Riverview Park
Project created
approximately 800 ft
of side channel to
increasing juvenile
Chinook rearing and
refuge habitat in the
Lower Green River. The
project, sponsored by
the City of Kent, was
constructed in 2012
in partnership with
the U.S. Army Corps
of Engineers under
the Green/Duwamish
Ecosystem Restoration
Project.
Photo: City of Kent.
Policies
»Implementation (I)1: The WRIA 9 2016-2025 Inter-
local Agreement outlines the governance, funding,
and decision-making structure for coordination and
implementation of the Salmon Habitat Plan.
»I2: Process-based habitat restoration – where
feasible – is preferable to other approaches that rely
on more intensive human intervention. However,
the magnitude of alteration within portions of the
watershed render true restoration of degraded pro-
cesses infeasible in some locations. Rehabilitation
and substitution projects require additional moni-
toring and maintenance to ensure desired functions
are achieved. WRIA 9 should support periodic
investments in adaptive management of completed
projects to ensure maximize long-term ecological
benefits.
»I3: Support use of mitigation funds to implement
priority salmon habitat enhancement projects. Off-
site mitigation programs (e.g., in-lieu fee and mitiga-
tion banking) can help improve ecological function
in critical locations (e.g., Chinook Wind in the
Duwamish Transition Zone) as a means of offsetting
unavoidable impacts in less sensitive areas of the
watershed. Development of mitigation opportuni-
ties should be coordinated with the WRIA to ensure
proposals are consistent with and do not preclude
identified salmon recovery priorities. The WRIA
should explore the potential for innovative partner-
ships that could combine mitigation and restoration
funding to expand the overall ecosystem benefit of
habitat projects. However, habitat improvements
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
72
associated with mitigation funds must be tracked
as separate and discrete from those achieved with
restoration-based grant funding.
»I4: Salmon recovery planning and habitat project
development should integrate social justice and
equity considerations. Public access and recre-
ational improvements should be considered where
demonstrated need exists and when compatible
with salmon recovery goals. WRIA 9 should seek
multiple benefit solutions that consider displace-
ment and social justice issues.
»I5: Coordinate Salmon Habitat Plan implementation
with other watershed-wide and regional initiatives
to identify synergies, leverage available funding,
avoid conflicts, and improve salmon recovery out-
comes. Existing watershed-wide and regional initia-
tives include the King County Flood Hazard Man-
agement Plan, King County Flood Control District
Lower Green River Corridor Plan, Lower Duwamish
Waterway Superfund Cleanup, Puget Sound Action
Agenda, Our Green Duwamish, WRIA 9 Watershed
Restoration Enhancement Committee, and the
Puget Sound South Central Action Area Local Inte-
grating Organization.
»I6: Support examining new funding sources and fi-
nancing strategies for implementing priority habitat
projects and programs throughout Puget Sound.
The WRIA 9 Watershed Forum will seek representa-
tion on regional committees tasked with the exam-
ination of public and private funding strategies at
the local and regional level.
»I7: Salmon recovery funding should support
adaptive management of previously constructed
projects where monitoring data shows design
changes are necessary to improve habitat function.
AGENDA ITEM #6. e)
PAGE
73 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Chapter 7:
Capital Projects
Salmon recovery capital projects preserve, enhance,
create or restore the habitats and physical processes
that support salmon. Projects include acquisition,
restoration, and/or enhancement approaches.
Although significant progress has been made im-
plementing projects identified in the 2005 Salmon
Habitat Plan, many projects remain unfunded and
under-resourced. Since 2005, 165 projects have been
completed or are in progress, totalling over $160
million of investments. While many of the remain-
ing projects identified within the 2005 Plan are still
viable, other opportunities have been lost to develop-
ment and/or a change in ownership.
This update provides a current, comprehensive list of
potential capital projects that align with established
goals for Chinook salmon recovery in WRIA 9. A
couple of plan amendments added new projects to
the 2005 Plan, including: a 2007 plan amendment;
and the 2014 Duwamish Blueprint. As part of the
2020 update, all projects described in the plan (and
its amendments) or the appendices of the plan were
evaluated for inclusion in updated project list.
WRIA 9 staff developed an updated list of capital
projects in partnership with ILA member jurisdic-
tions, non-profit partners, state agencies, and others
engaged in salmon recovery. Partners were asked to
submit projects and provide specific project infor-
mation including a project sponsor, location, scope,
goals, alignment with recovery strategies, and pro-
jected habitat gains. In some cases, an identified
project did not have a clear sponsor, but was includ-
ed due to the perceived importance of the project.
The request for projects primarily targeted Chinook
salmon-focused projects, but several coho salmon
projects were accepted.
A few additional project guidelines were developed in
refining the project list:
•Policies and Programs – Project submittals were
not required for actions that fell within the scope
of larger programmatic actions (e.g., fish barrier
removal).
•Discrete footprint – Projects were required to
articulate a specific project footprint to support
evaluation of feasibility and magnitude of ecologi-
cal benefit.
•Implementable within 10–15 years – Project spon-
sors were directed to submit projects that could be
implemented within a 10–15-year timeframe, provid-
ed adequate funding and landowner willingness.
AGENDA ITEM #6. e)
PAGE
74 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Project Prioritization
A team of subject matter experts was recruited to
review, evaluate and tier projects for inclusion in the
Plan. This four-person prioritization team brought
expertise in restoration ecology, fish biology, and
habitat project management, and over 50 years of
knowledge from working in the Green/Duwamish
River and Central Puget Sound. A balance of inter-
ests was represented to eliminate bias for specific
projects. The review process evaluated all concep-
tual projects based on their full potential to provide
habitat lift. Future constraints identified during design
and feasibility could impact overall project scope and
associated benefits.
Project prioritization was based on subject matter
expert evaluation of:
• Habitat Quality (lift): the relative importance and
value of a specific proposed habitat; and
• Habitat Quantity (size): the potential amount
(acreage and shoreline length) of habitat created or
enhanced based on the entire project footprint.
The scoring process was weighted so that habitat
quality comprised 75 percent of the score and habitat
quantity comprised 25 percent of the score. The tier-
ing process assumes habitat benefits are positively
correlated with size. Larger projects not only provide
more habitat, they allow increased habitat heteroge-
neity. Smaller, more homogeneous habitats, are less
resilient to perturbations, and site constraints can be
problematic for optimizing habitat. A small modifier
was added to allow consideration of high-value geo-
graphic locations (e.g., proximity to existing restora-
tion sites, feeder bluff, etc.). Potential lift reflects the
projected immediate and long-term habitat benefits
to addressing limiting factors for Chinook salmon re-
covery. Processed-based restoration was considered
to provide more certainty of long-term benefits.
A total of 118 projects were submitted and ranked as
part of the project solicitation process. Projects were
ranked within a specific subwatershed – not across
subwatersheds. Given the large number of projects,
projects were tiered based on overall benefit and to
provide an indication of priority for financial support
from the WRIA. Tiers were defined as follows:
• Tier 1 - high potential; substantially contribute to
recovery goals in each subwatershed.
• Tier 2 - moderate potential; clear alignment with
Chinook salmon recovery goals.
• Tier 3 - limited potential; associated with Chinook
recovery (or not primary species impacted); com-
pliments broader recovery efforts in the subwater-
shed.
A simplified scoring methodology based on habitat
quantity and quality provides a foundation for long-
term planning by setting high-level implementation
priorities within each subwatershed. Tiers were as-
signed to projects by identifying natural breakpoints
in the full list of projects within a subwatershed.
These established breakpoints serve as a scoring
baseline for projects received through future biennial
calls for projects. Future proposed projects will be
scored under the same criteria and assigned a tier.
The proposed project will be added to the tiered list
for future funding, with near-term funding priority giv-
en to those projects previously identified as in need
of funding.
The final list of projects was approved unanimously
by the Implementation Technical Committee and Wa-
tershed Ecosystem Forum in 2019 and will serve as
the comprehensive list of recovery actions that help
achieve recovery goals, and ultimately toward the
delisting of Chinook salmon in Puget Sound.
19Duwamish(DUW)
Middle
Green (MG)
Lower
Green (LG)
1
Upper Green
(UG)
Number
of WRIA 9
Projects by
Subwatershed
39
Nearshore
(NS)
14
45
Figure 25. Number of projects by subwatershed.
AGENDA ITEM #6. e)
PAGE
75 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Capital Project Information by
Subwatershed containing:
• Subwatershed project location maps
• Subwatershed project listings with tier rankings
• Project fact sheets with site maps
Marine Nearshore Subwatershed ................................p. 76
Duwamish Estuary Subwatershed .............................p. 102
Lower Green River Subwatershed ..............................p. 116
Middle Green River Subwatershed ............................p. 146
Upper Green River Subwatershed ............................p. 160
AGENDA ITEM #6. e)
Marine Nearshore Subwatershed 39 projects
Tier 1 (Score 18+) 17 projects
Tier 2 (Score 7-18) 8 projects
NS-2 ...........Myrtle Edwards Park Pocket Beach Shallow
Water Habitat
NS-16 .........Dash Point State Park Estuary Restoration
and Water Quality Improvements
NS-22 ........Smith Cove Shallow Water Rehabilitation
NS-35 ........Lower Shinglemill Creek habitat restoration
NS-39 ........Walker Creek Headwaters Land Acquisition
NS-40 .......Salmon Creek Fish Barrier Removal
NS-42 ........Miller Creek Regional Detention Facility
NS-54 ........West Galer Street/32nd St. Boat Ramp
Shoreline Armor Removal and Restoration
NS-58 ........Tsugwalla Creek Pocket Estuary Restoration
Project
NS-59 ........Mileta Armor removal and shoreline
restoration
NS-68........Longfellow Creek Fish Passage and
Floodplain Restoration
NS-70 ........Fauntleroy Creek Fish Passage
NS-72 ........Perkins Lane Protection and Restoration
Project/Perkins Lane Utility Access Road
NS-73 ........Beall Creek Salmon Habitat Project
Tier 3 (Score <7) 14 projects
PAGE
76 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
NS-7 ...........Cove Creek Pocket Estuary Restoration
NS-8 ..........Dillworth and Gorsuch Creek Pocket
Estuaries
NS-11 ..........Beaconsfield on the Sound
NS-15 .........McSorley Creek Pocket Estuary and Feeder
Bluff restoration
NS-21 .........Corbin Beach Acquisition and Restoration
NS-23 ........Point Heyer Nearshore Acquisitions
NS-24 ........Cross Landing Pocket Estuary Restoration
NS-28 ........Big Beach Reach Acquisition and
Restoration
NS-29 ........Maury Island Natural Area Revegetation and
Reclamation
NS-43 ........Dockton Reach Preservation and Restoration
NS-45 ........Tahlequah Creek Mouth Restoration
NS-49 ........Arroyos Park Bulkhead Removal
NS-53 ........Perkins Lane Protection and Restoration
NS-61 .........Manzanita Reach Acquisition and Restoration
NS-62 ........Spring Beach Acquisition and Restoration
NS-63 ........Green Valley Creek Acquisition and
Restoration
NS-66........Camp Kilworth Protection
NS-13 .........Massey Creek Pocket Estuary and Fish
Passage Project
NS-14 .........Raab’s Lagoon Acquisition and Restoration
NS-25 ........Judd Creek Pocket Estuary
NS-27 ........Piner Point Acquisition and Restoration
NS-31 .........Discovery Park Feeder Bluff Protection and
Restoration
NS-44........Portage Salt Marsh Restoration
NS-60 .......Ellisport Creek Mouth Restoration
NS-67 ........Des Moines Creek Estuary Restoration
AGENDA ITEM #6. e)
PAGE
77 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
509
518
99
99
99
5
5
5
Miller Cr
Puget
Sound
Elliott
Bay
NS-28
NS-27NS-61NS-62
NS-43
NS-24
NS-63
NS-21
NS-8NS-7
NS-2
NS-68
NS-72
NS-70
NS-45
NS-73
NS-35
NS-29
NS-60
NS-59
NS-58
NS-66
NS-16
NS-67
NS-13
NS-42
NS-40
NS-49
NS-54
NS-53
NS-31
NS-22
NS-11
NS-25
NS-15
NS-14
NS-39
NS-23
NS-44
NS-23
SEATTLE
SEATTLE
Vashon
Island
Maury Island
SEATAC
FEDERAL WAY
BURIEN
DES
MOINES
DES
MOINES
NORMANDY
PARK
NORMANDY
PARK
River mile
Project location and name
Project location and name
River/creek
Major road
King County boundary
Maine Nearshore
Subwatershed
boundary
WRIA 9 boundary
Public lands
Parks
Incorporated area
Open water
1
NS-1
NS-1
0 1 2 3 Miles
N
Note:The use of the information in this map issubject to the terms and conditions found at: www.kingcounty.gov/services/gis/Maps/terms-of-use.aspx. Your access and use is conditioned on your acceptance of these terms and conditions.
KCIT-DCE File: 2011_10202L_W9SHP_ProjMap_NS.ai LPRE
GIS File:Q:\20009\WRIA9_Watershed.mxd KLINKAT
Figure 26.
Marine Nearshore
Subwatershed Projects
AGENDA ITEM #6. e)
NS-7
Agren ParkWestside Hwy SWMcIntyre Rd SWSW Cove Rd
Puget
Sound Vashon
Island
UNINCORPORATED KING COUNTY
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
N0200400 ft.Public
Lands Park
RestorationAcquisition
$
Nearshore
Feeder Blu
Nearshore
Pocket Estuary
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Shoreline armor reduction
Contribution to goals metrics:
• Marine riparian vegetation
• Shoreline armor
PROJECT DESCRIPTION:
Protect and improve riparian vegetation, improve
tributary access, remove armoring and fill,
increase vegetated shallow nearshore and marsh
habitats, protect and enhance pocket estuaries
and tributary stream mouths.
Tier 1 Project: NS-7
Cove Creek Pocket Estuary Restoration
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
Vashon/Maury Island
(KI – 13-28; KI - 11-7)
Banksidejurisdiction:
Vashon/Maury
Project sponsor:
King County
Budget:
$600,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: WDOE Shoreline Photo Viewer Images, 2020
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
PAGE
78 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
NS-8
HitchingsProperty86th Pl SW87th Ave SW90th Ave SWSW Dilworth Rd
91st Ave SWSW Soper Rd
SW Gorsu
c
h
R
d
Puget
Sound
Vashon Island
K ING C OUNT YSeattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
N0200400 ft.Public
Lands Park
RestorationAcquisition
$
Nearshore
Pocket Estuary Riparian
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Increased rearing habitat
• Shoreline armor reduction
Contribution to goals metrics:
• Marine riparian vegetation
• Shoreline armor
• Shoreline conservation
PROJECT DESCRIPTION:
Acquire properties at the mouth of Dillworth
and Gorsuch Creeks to restore stream delta
and pocket estuary habitat.
Tier 1 Project: NS-8
Dillworth and Gorsuch Creek Pocket Estuaries
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
Vashon/Maury
(KI - 12 - 4)
Banksidejurisdiction:
Vashon/Maury
Project sponsor:
King County
Budget:
$3,000,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: WDOE Shoreline Photo Viewer Images, 2020
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
UNINCORPORATEDKING COUNTY
PAGE
79 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
NS-11
Marine ViewParkMar
ine
V
iew
D
r
SW
Puget Sound
NORMANDY PARK
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
N0200400 ft.Public
Lands Park Incorp. Area
Boundary
RestorationAcquisition
$
Nearshore
Feeder Blu
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Reconnect historic feeder blus
• Shoreline armor reduction
Contribution to goals metrics:
• Shoreline armor
PROJECT DESCRIPTION:
Protect and restore 1085 ft. of active feeder blu
along mainland marine nearshore.
Tier 1 Project: NS-11
Beaconsfield on the Sound
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
Normandy Park
(KI-7-3)
Banksidejurisdiction:
Normandy Park
Project sponsor:
Normandy Park
Budget:
$600,000
PROJECT TYPE:
KEY HABITAT:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: WDOE Shoreline Photo Viewer Images, 2020
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
NS-15
Saltwater State ParkMa
r
in
e
V
i
ew
D
r
S
Puget
Sound
DES MOINES
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
N0200400 ft.Public
LandsPark Incorp. Area
Boundary
Restoration
Acquisition
$
NearshoreFeeder Blu
Monitoring &Assessment
Enhancement/Planting
Nearshore
Pocket Estuary
Planning/Design
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Improved forage fish spawning habitat
• Recreation opportunities
• Shoreline armor reduction
Contribution to goals metrics:
• Marine riparian vegetation
• Shoreline armor
PROJECT DESCRIPTION:
Restore historic pocket estuary, protect feeder
blus, remove marine shoreline armoring and
enhance low-impact recreational activities.
Tier 1 Project: NS-15McSorley Creek Pocket Estuary and Feeder Bluff Restoration
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
Des Moines (KI - 8 - 3)
Banksidejurisdiction:
Federal Way
Project sponsor:
Des Moines
Budget:
$20,838,000
PROJECT TYPE:
KEY HABITAT:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: WDOE Shoreline Photo Viewer Images, 2020
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
PAGE
80 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
NS-15
Saltwater State ParkMa
r
in
e
V
i
ew
D
r
S
Puget
Sound
DES MOINES
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
N0200400 ft.Public
LandsPark Incorp. Area
Boundary
Restoration
Acquisition
$
NearshoreFeeder Blu
Monitoring &Assessment
Enhancement/Planting
Nearshore
Pocket Estuary
Planning/Design
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Improved forage fish spawning habitat
• Recreation opportunities
• Shoreline armor reduction
Contribution to goals metrics:
• Marine riparian vegetation
• Shoreline armor
PROJECT DESCRIPTION:
Restore historic pocket estuary, protect feeder
blus, remove marine shoreline armoring and
enhance low-impact recreational activities.
Tier 1 Project: NS-15McSorley Creek Pocket Estuary and Feeder Bluff Restoration
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
Des Moines (KI - 8 - 3)
Banksidejurisdiction:
Des Moines
Project sponsor:
King County/
State Parks
Budget:
$20,838,000
PROJECT TYPE:
KEY HABITAT:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: WDOE Shoreline Photo Viewer Images, 2020
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
PAGE
81 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
Burma Rd S
W
NS-21
Puget
Sound
Vashon
Island
UNINCORPORATED KING COUNTY
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
N0200400 ft.Public
Lands
Project
Area
RestorationAcquisition
$
NearshoreFeeder Blu
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Reconnect historic feeder blus
• Shoreline armor reduction
Contribution to goals metrics:
• Marine riparian vegetation
• Shoreline armor
• Shoreline conservation
PROJECT DESCRIPTION:
Acquire to protect and restore nearshore habitat
by removing shoreline debris, hard armor, and
derelict docks.
Tier 1 Project: NS-21
Corbin Beach Acquisition and Restoration
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
Vashon/Maury Island
(KI 11-2)
Banksidejurisdiction:
Vashon/Maury
Project sponsor:
King County
Budget:
$3,500,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: Google Earth
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
PAGE
82 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
NS-23NS-23
Vashon Commons
Point HeyerNatural Area
Ellisport Wildlands
OberPark
87th Ave SWSW Cemetery Rd
Monument Rd SWDockton R
d
SW
SW Cove Rd
Beall Rd SWSW Bank Rd
SW 204th St SW Elli
s
port Rd
Geor
ge Ed
wards RdVashon Hwy SWPuget
Sound
0 3,000 Feet
Vashon
Island
UNINCORPORATED KING COUNTY
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
NPublic
Lands Park Project
Area 0 2,000 ft.
RestorationAcquisition
$
Nearshore
Feeder Blu
Riparian
Project Area Map: Ortho2019KCNAT aerial photo Site photo: WDOE Shoreline Photo Viewer Images, 2020
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Habitat preservation
• Recreation opportunities
• Shoreline armor reduction
Contribution to goals metrics:
• Marine riparian vegetation
• Shoreline armor
• Shoreline conservation
PROJECT DESCRIPTION:
Acquire properties to protect and restore beach
feeding processes and salt marsh at spit.
Tier 1 Project: NS-23
Point Heyer Nearshore Acquisitions
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
Vashon/Maury
(KI - 13 - 2)
Banksidejurisdiction:
Vashon/Maury
Project sponsor:
King County
Budget:
$10,000,000
PROJECT TYPE:
KEY HABITAT:
PAGE
83 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
PAGE
84 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
NS-28
Frog Holler
Forest Trails
Frog HollerForest
LostLake
SpringBeachSpringBeach
Neill PointNatural Area
Spring BeachNatural AreaSpring BeachNatural Area
Lost LakeNatural Area
Inspiration Pt.Natural Area
Forest Glen Natural Area
Manzanita Natural Area
Inspiration Point
Wax Orchard Rd SWVashon Hwy SWVashon Hwy SWPuget Sound
Puget Sound
Maury
Island
Vashon
Island
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
NProject
Area 0 2,000 ft.Public
Lands Park Trail
RestorationAcquisition
$
Nearshore
Feeder Blu
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Reconnect historic feeder blus
• Shoreline armor reduction
Contribution to goals metrics:
• Marine riparian vegetation
• Shoreline armor
• Shoreline conservation
PROJECT DESCRIPTION:
Acquire to protect and restore about
209 acres of upland and nearshore habitat with
approximately 4615 feet of blu-backed beach
shoreline.
Tier 1 Project: NS-28
Big Beach Reach Acquisition and Restoration
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
Vashon/Maury Island
(KI 13-20)
Banksidejurisdiction:
Vashon/Maury
Project sponsor:
King County
Budget:
$15,000,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: WDOE Shoreline Photo Viewer Images, 2020
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
NS-24
147th Ave SW147th Ave SWRaymond Rd SWRaymond Rd SWSW Reddings Beach RdSW Reddings Beach RdSW ReddingsBeach Rd
SW ReddingsBeach Rd
SW Cross Landing Rd
145
th
P
l
SW
145
th
P
l
SW
UNINCORPORATED KING COUNTY
Vashon
IslandPuget
Sound
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
NProject
Area
0 200 400 ft.Public
Lands
RestorationAcquisition
$
Nearshore
Pocket Estuary Riparian
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Shoreline armor reduction
Contribution to goals metrics:
• Marine riparian vegetation
• Shoreline armor
• Shoreline conservation
PROJECT DESCRIPTION:
Acquire beach feeding parcels, remove fill,
restore salt marsh, remove road, and reroute road
drainage.
Tier 1 Project: NS-24
Cross Landing Pocket Estuary Restoration
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
Vashon/Maury
(KI – 13 – 23)
Banksidejurisdiction:
Vashon/Maury
Project sponsor:
King County
Budget:
$3,500,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: WDOE Shoreline Photo Viewer Images, 2020
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
AGENDA ITEM #6. e)
PAGE
85 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
NS-28
Frog Holler
Forest Trails
Frog HollerForest
LostLake
SpringBeachSpringBeach
Neill PointNatural Area
Spring BeachNatural AreaSpring BeachNatural Area
Lost LakeNatural Area
Inspiration Pt.Natural Area
Forest Glen Natural Area
Manzanita Natural Area
Inspiration Point
Wax Orchard Rd SWVashon Hwy SWVashon Hwy SWPuget Sound
Puget Sound
Maury
Island
Vashon
Island
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
NProject
Area 0 2,000 ft.Public
Lands Park Trail
RestorationAcquisition
$
Nearshore
Feeder Blu
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Reconnect historic feeder blus
• Shoreline armor reduction
Contribution to goals metrics:
• Marine riparian vegetation
• Shoreline armor
• Shoreline conservation
PROJECT DESCRIPTION:
Acquire to protect and restore about
209 acres of upland and nearshore habitat with
approximately 4615 feet of blu-backed beach
shoreline.
Tier 1 Project: NS-28
Big Beach Reach Acquisition and Restoration
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
Vashon/Maury Island
(KI 13-20)
Banksidejurisdiction:
Vashon/Maury
Project sponsor:
King County
Budget:
$15,000,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: WDOE Shoreline Photo Viewer Images, 2020
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
AGENDA ITEM #6. e)
PAGE
86 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
NS-43
Dockton Forest,Dockton Natural Area andMaury Is. Natural Area Trails
Maury IslandNatural Area
DocktonForest
Dockton Natural Area
DocktonPark
99th Ave SWDockton Rd SWSW
D
o
c
k
S
t
Puget Sound
PROJECT AREA MAP
N05001,000 ft.Public
Lands
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
RestorationAcquisition
$
Nearshore
Feeder Blu
Scoping/
Reconnaissance
Riparian
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Shoreline armor reduction
Contribution to goals metrics:
• Marine riparian vegetation
• Shoreline armor
• Shoreline conservation
PROJECT DESCRIPTION:
Restore 2000 feet of marine shoreline in the
Maury Island Aquatic Reserve.
Tier 1 Project: NS-43
Dockton Reach Preservation and Restoration
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
Vashon/Maury
(KI - 13 - 8)
Banksidejurisdiction:
Vashon/Maury
Project sponsor:
King County
Budget:
$2,600,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: WDOE Shoreline Photo Viewer Images, 2020
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
Park Trail
Maury
Island
UNINCORPORATED KING COUNTY
NS-29UFOErraticFeeder LineMI
N
A
TMINATDockton
Forest Trails
M I N A T (M aury Island N atu ra l A r e a T r a ils )MINA T
Gravel GrinderMaury IslandNatural Area
DocktonForest
Puget Sound
PROJECT AREA MAP
N0200400 ft.Park TrailSW 275th Sandy Shores Dr SWK ING C OUNT Y
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
Restoration
Nearshore
Feeder Blu
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Improved forage fish spawning habitat
• Recreation opportunities
• Shoreline armor reduction
Contribution to goals metrics:
• Marine riparian vegetation
PROJECT DESCRIPTION:
Remove invasive species, add topsoil, and
revegetate about a mile of marine shoreline.
Tier 1 Project: NS-29
Maury Island Natural Area Revegetation and Reclamation
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
Vashon/Maury
(KI - 14 - 2)
Banksidejurisdiction:
Vashon/Maury
Project sponsor:
King County
Budget:
$1,050,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: WDOE Shoreline Photo Viewer Images, 2020
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
Green River Trail - Kent
Vashon
Island
UNINCORPORATED KING COUNTY
AGENDA ITEM #6. e)
PAGE
87 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
NS-43
Dockton Forest,Dockton Natural Area andMaury Is. Natural Area Trails
Maury IslandNatural Area
DocktonForest
Dockton Natural Area
DocktonPark
99th Ave SWDockton Rd SWSW
D
o
c
k
S
t
Puget Sound
PROJECT AREA MAP
N05001,000 ft.Public
Lands
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
RestorationAcquisition
$
Nearshore
Feeder Blu
Scoping/
Reconnaissance
Riparian
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Shoreline armor reduction
Contribution to goals metrics:
• Marine riparian vegetation
• Shoreline armor
• Shoreline conservation
PROJECT DESCRIPTION:
Restore 2000 feet of marine shoreline in the
Maury Island Aquatic Reserve.
Tier 1 Project: NS-43
Dockton Reach Preservation and Restoration
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
Vashon/Maury
(KI - 13 - 8)
Banksidejurisdiction:
Vashon/Maury
Project sponsor:
King County
Budget:
$2,600,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: WDOE Shoreline Photo Viewer Images, 2020
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
Park Trail
Maury
Island
UNINCORPORATED KING COUNTY
AGENDA ITEM #6. e)
PAGE
88 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
NS-45
Point Defiance- Tahlequah Ferry Loading DockVashon Hwy SWSW
P
o
h
l
R
d
SW
T
a
h
l
e
q
u
a
h
R
d 131st Ave SWPuget Sound
Tahlequah Cr.Tahlequah Cr.Slai
g
h
t
e
r
’
s
C
r
.
PROJECT AREA MAP
N0200400 ft.Public
Lands
K ING C OUNT YSeattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
RestorationAcquisition
$
Nearshore
Feeder Blu
Nearshore
Pocket Estuary
Riparian
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Improved forage fish spawning habitat
• Shoreline armor reduction
Contribution to goals metrics:
• Marine riparian vegetation
• Shoreline armor
PROJECT DESCRIPTION:
Acquire properties, restore creek meander and
fish passage, remove bulkhead, and restore
nearshore, estuary and marsh habitat.
Tier 1 Project: NS-45
Tahlequah Creek Mouth Restoration
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
Vashon/Maury Island
(KI - 13 - 21, KI - 13 - 22)
Jurisdiction:
Vashon/Maury
Project sponsor:
Vashon/Maury
Budget:
$7,000,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: WDOE Shoreline Photo Viewer Images, 2020
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
Vashon
Island
UNINCORPORATED KING COUNTY
NS-49
Arroyos Natural Area
Arroyo Heights Park
Arroyo Heights Park
SW 106th St
SW 108th St
M
arin
e Vie
w Dr S
WPuget Sound
Seattle
Park
PROJECT AREA MAP
N0200400 ft.Public
Lands
K ING C OUNT Y
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
Park
Restoration
Nearshore
Planning/
Design
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Habitat preservation
• Recreation opportunities
• Shoreline armor reduction
Contribution to goals metrics:
• Shoreline armor
• Shoreline conservation
PROJECT DESCRIPTION:
Remove approximately 700 feet of rip rap and
timber bulkhead along the shoreline.
Tier 1 Project: NS-49
Arroyos Park Bulkhead Removal
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
City of Seattle (KI -5 - 1)
Banksidejurisdiction:
City of Seattle
Project sponsor:
Seattle Parks and
Recreation
Budget:
$2,500,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: WDOE Shoreline Photo Viewer Images, 2020
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
AGENDA ITEM #6. e)
PAGE
89 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
NS-49
Arroyos Natural Area
Arroyo Heights Park
Arroyo Heights Park
SW 106th St
SW 108th St
M
arin
e Vie
w Dr S
WPuget Sound
Seattle
Park
PROJECT AREA MAP
N0200400 ft.Public
Lands
K ING C OUNT Y
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
Park
Restoration
Nearshore
Planning/
Design
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Habitat preservation
• Recreation opportunities
• Shoreline armor reduction
Contribution to goals metrics:
• Shoreline armor
• Shoreline conservation
PROJECT DESCRIPTION:
Remove approximately 700 feet of rip rap and
timber bulkhead along the shoreline.
Tier 1 Project: NS-49
Arroyos Park Bulkhead Removal
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
City of Seattle (KI -5 - 1)
Banksidejurisdiction:
City of Seattle
Project sponsor:
Seattle Parks and
Recreation
Budget:
$2,500,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: WDOE Shoreline Photo Viewer Images, 2020
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
AGENDA ITEM #6. e)
NS-53
MagnoliaPark
Magnolia
Tidelands Park
MagnoliaPlayfieldParkmontPlaceCarletonCenter
EastmontPlace
Public
Lands ParkPublic
Lands Park
Mag
n
o
l
i
a
B
l
v
d
W
W McGraw St
Viewmont Way WMontavistaPl WWest Vi
ewm
ont Way W 34th Ave WW Lynn St
34th A
v
e
W
Puget Sound
Seattle
0 200 400
PROJECT AREA MAP
N0200400 ft.
K ING C OUNT Y
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
Public
Lands Park
RestorationAcquisition
$
Nearshore
Feeder Blu
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Habitat preservation
• Reconnect historic feeder blus
• Shoreline armor reduction
Contribution to goals metrics:
• Shoreline conservation
PROJECT DESCRIPTION:
Acquire properties to remove old bulkheads and
fill.
Tier 1 Project: NS-53
Perkins Lane Protection and Restoration
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
City of Seattle (KI - 3 - 2)
Banksidejurisdiction:
City of Seattle
Project sponsor:
Seattle Parks and
Recreation
Budget:
TBD
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: WDOE Shoreline Photo Viewer Images, 2020
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
PAGE
90 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
NS-28NS-61
Lost Lake
Lost Lake Natural Area
Northilla Beach Natural Area
Manzanita Natural Area
Inspiration Point Natural Area
Hake Rd SW101st Ave SWSW Nor
t
h
i
l
l
a
R
d
SW 268th St
101st Ave SWSW 280th St
Ma
n
z
a
n
i
t
a
B
e
a
c
h
R
d
SW
Puget Sound
PROJECT AREA MAP
N
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
Public
Lands ParkPublic
Lands Park 0 1,000 ft.500
RestorationAcquisition
$
Nearshore
Pocket Estuary
Riparian
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Improved forage fish spawning habitat
• Reconnect historic feeder blus
• Shoreline armor reduction
Contribution to goals metrics:
• Marine riparian vegetation
• Shoreline armor
• Shoreline conservation
PROJECT DESCRIPTION:
Acquire properties to remove old bulkheads and
fill.
Tier 1 Project: NS-61
Manzanita Reach Acquisition and Restoration
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
Vashon/Maury (KI - 10 - 3)
Banksidejurisdiction:
Vashon/Maury
Project sponsor:
King County
Budget:
$15,000,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: WDOE Shoreline Photo Viewer Images, 2020
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
Maury
Island
UNINCORPORATED KING COUNTY
PAGE
91 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
Spring Beach
Spring BeachNatural Area
SW Spring Beach Rd139th Ave SW141st Ave SW143rd Ave SWSW
P
o
h
l
R
d
Puget Sound
PROJECT AREA MAP
N
K ING C OUNT YSeattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
Public
Lands ParkPublic
Lands Park 0 800 ft.400
RestorationAcquisition
$
Nearshore
Pocket Estuary
Riparian
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Improved forage fish spawning habitat
• Shoreline armor reduction
Contribution to goals metrics:
• Marine riparian vegetation
• Shoreline armor
• Shoreline conservation
PROJECT DESCRIPTION:
Acquire to protect and restore shoreline and
forage fish habitat.
Tier 1 Project: NS-62
Spring Beach Acquisition and Restoration
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
Vashon/Maury (KI - 10 - 3)
Banksidejurisdiction:
Vashon/Maury
Project sponsor:
King County
Budget:
$5,000,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: WDOE Shoreline Photo Viewer Images, 2020
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
NS-62
Vashon
Island
UNINCORPORATED KING COUNTY
PAGE
92 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
SW 207th Ln
SW 208th St
SW 216th St SW Mad
rona
Rd141st Ave SW135th Ave SWS
W
M
a
d
r
o
n
a
R
d SW Madrona RdPuget
Sound
Green Valley Cr.
PROJECT AREA MAP
N0200400 ft.
K ING C OUNT YSeattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
Public
Lands
Public
Lands
RestorationAcquisition
$
Nearshore
Pocket Estuary
Riparian
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Improved forage fish spawning habitat
• Reconnect historic feeder blus
• Shoreline armor reduction
Contribution to goals metrics:
• Marine riparian vegetation
• Shoreline armor
• Shoreline conservation
PROJECT DESCRIPTION:
Acquire undeveloped lots along the Green Valley
Creek, restore creek mouth, and remove hard
shoreline armor.
Tier 1 Project: NS-63
Green Valley Creek Acquisition and Restoration
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
Vashon/Maury (KI - 13 - 26)
Banksidejurisdiction:
Vashon/Maury
Project sponsor:
King County
Budget:
$4,000,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: WDOE Shoreline Photo Viewer Images, 2020
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
NS-63
Vashon Island
UNINCORPORATED KING COUNTY
AGENDA ITEM #6. e)
PAGE
93 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
SW 207th Ln
SW 208th St
SW 216th St SW Mad
rona
Rd141st Ave SW135th Ave SWS
W
M
a
d
r
o
n
a
R
d SW Madrona RdPuget
Sound
Green Valley Cr.
PROJECT AREA MAP
N0200400 ft.
K ING C OUNT YSeattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
Public
Lands
Public
Lands
RestorationAcquisition
$
Nearshore
Pocket Estuary
Riparian
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Improved forage fish spawning habitat
• Reconnect historic feeder blus
• Shoreline armor reduction
Contribution to goals metrics:
• Marine riparian vegetation
• Shoreline armor
• Shoreline conservation
PROJECT DESCRIPTION:
Acquire undeveloped lots along the Green Valley
Creek, restore creek mouth, and remove hard
shoreline armor.
Tier 1 Project: NS-63
Green Valley Creek Acquisition and Restoration
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
Vashon/Maury (KI - 13 - 26)
Banksidejurisdiction:
Vashon/Maury
Project sponsor:
King County
Budget:
$4,000,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: WDOE Shoreline Photo Viewer Images, 2020
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
NS-63
Vashon Island
UNINCORPORATED KING COUNTY
AGENDA ITEM #6. e)
PAGE
94 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
NS-66
Palisades Park
Dumas BayPark
SR 509
SR 509
Puget Sound
FEDERAL WAY
PROJECT AREA MAP
N0200400 ft.
K ING C OUNT YSeattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
Public
Lands
Public
Lands Park
Acquisition
$
Nearshore
Feeder Blu
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Improved forage fish spawning habitat
• Reconnect historic feeder blus
Contribution to goals metrics:
• Shoreline armor
PROJECT DESCRIPTION:
Protect 900 feet of active feeder blus that occurs
in the first third of the drift cell.
Tier 1 Project: NS-66
Camp Kilworth Protection
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
Federal Wa y (KI - 10 - 3)
Banksidejurisdiction:
Federal Way
Project sponsor:
Forterra and Kilworth
Environmental Education
Preserve (KEEP)
Budget:
$3,100,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: WDOE Shoreline Photo Viewer Images, 2020
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
Inc. Area
Boundary
AGENDA ITEM #6. e)
PAGE
95 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Riparian
SouthMarinaPark
Overlook Park I
Marine View Dr SS 223rd St
7th Ave SS 227th St
Puget
Sound
DESMOINES
509
516NS-13
IMAGE_Ortho2019KCNAT
Tier 2 Project: NS-13Massey Creek Pocket Estuary and Fish Passage Project
PROJECT DESCRIPTION:Acquire and restore the stream, create fish passage, remove the jetty and rock from the south bank, and create a pocket estuary.
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Nearshore
jurisdiction:
Nearshore KI - 8 - 2
Bankside
jurisdiction:
City of Des Moines
Project sponsor:
City of Des Moines
Budget:
$3,000,000
Acquisition
$
Restoration
PROJECTTYPE:
Nearshore
Pocket Estuary
KEYHABITAT:KCIT-DCE VC folder: 2010_10202w_NS-13.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdPark Public Lands N0300600 ft150
Riparian
RaabsLagoonNaturalArea
Dockton Rd SW80th Ave SWSW 234th St
75th Ave SWKingsbury Rd SWQuartermaster
Harbor
UNINCORPORATEDKING COUNTYMAURY ISLAND
NS-14
Tier 2 Project: NS-14Raab's Lagoon Acquisition and Restoration
PROJECT DESCRIPTION:Acquire vacant lots, restore riparian forest habitat and connectivity by removing the weir and bulkhead.
PROJECT FACTS
Subwatershed:
Nearshore
Nearshore
jurisdiction:
Nearshore KI - 13 - 9
Bankside
jurisdiction:
King County
Project sponsor:
King County
Budget:
TBD
Acquisition
$
Restoration
PROJECTTYPE:
Nearshore
Pocket Estuary
KEYHABITAT:KCIT-DCE VC folder: 2010_10202w_NS-14.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdPark Public Lands N0300600 ft150
AGENDA ITEM #6. e)
PAGE
96 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Nearshore
Feeder Blu
Riparian
Judd C
r
e
ek
Marjorie R. StanleyNatural Area
SW 232nd St
SW Quartermaster DrVashon Hwy SWUNINCORPORATEDKING COUNTYVASHON ISLAND
Quartermaster
Harbor
NS-25
Tier 2 Project: NS-25Judd Creek Pocket Estuary
PROJECT DESCRIPTION:Restore habitat with wood placement, removal of derelict barge, and additional vegetation near mouth of Judd Creek.
PROJECT FACTS
Subwatershed:
Nearshore
Nearshore
jurisdiction:
Nearshore KI - 0 - 1
Bankside
jurisdiction:
King County
Project sponsor:
King County
Budget:
$6,000,000
Acquisition
$
Restoration
PROJECTTYPE:
Nearshore
Pocket Estuary
KEYHABITAT:KCIT-DCE VC folder: 2010_10202w_NS-25.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdPark Public Lands/Easements N0300600 ft150
Nearshore
Feeder Blu
Riparian
PinerPointNaturalAreaNorthillaBeachNaturalArea99th Ave SWSW Nort
h
i
l
l
a
R
d Point Piner Rd SWSW Summerhurst Rd
101st Ave SWSW 280th St
Puget
Sound
UNINCORPORATEDKING COUNTYVASHON ISLAND
IMAGE_Ortho2019KCNAT
NS-27
NS-27
Tier 2 Project: NS-27Piner Point Acquisition and Restoration
PROJECT DESCRIPTION:Acquire remaining properties, remove bulkheads, and restore feeder blus.
PROJECT FACTS
Subwatershed:
Nearshore
Nearshore
jurisdiction:
Nearshore KI - 13 - 8
Bankside
jurisdiction:
King County
Project sponsor:
King County
Budget:
$1,500,000
Acquisition
$
Restoration
PROJECTTYPE:KEYHABITAT:KCIT-DCE VC folder: 2010_10202w_NS-27.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdPark Public Lands/Easements N05001,000 ft
AGENDA ITEM #6. e)
PAGE
97 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Nearshore
Feeder Blu
NS-31
DiscoveryPark
CarletonHighlandsMagnoliaTidelandsPark
Magnolia Blvd WW Dravus
St
Magnolia Blvd WW Dravus
St
W Emerson StW Emerson St
Puget
Sound
SEATTLE
NS-31
IMAGE_Ortho2019KCNAT
Tier 2 Project: NS-31Discovery Park Feeder Bluff Protection and Restoration
PROJECT DESCRIPTION:Acquire remaining properties, remove bulkheads, and restore feeder blus.
PROJECT FACTS
Subwatershed:
Nearshore
Nearshore
jurisdiction:
Nearshore KI - 3 - 2
Bankside
jurisdiction:
City of Seattle
Project sponsor:
Seattle Parks
and Recreation
Budget:
TBD
Acquisition
$
Restoration
PROJECTTYPE:KEYHABITAT:KCIT-DCE VC folder: 2010_10202w_NS-31.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdPark Public Lands N0300600 ft150
Nearshore
Feeder Blu
Riparian
Tramp HarborDock
Dockton Rd SWDockton Rd SWDockton Rd SWDockton Rd SWSW Quartermaster DrSW Quartermaster Dr PortageWay SWPuget
Sound
Quartermaster
harbor
NS-44
UNINCORPORATEDKING COUNTYVASHON ISLAND
UNINCORPORATEDKING COUNTYMAURY ISLAND
IMAGE_Ortho2019KCNAT
Tier 2 Project: NS-44Portage Salt Marsh Restoration Project
PROJECT DESCRIPTION:Install bridge or box culverts, restore fish access, and restore habitat to salt marsh.
PROJECT FACTS
Subwatershed:
Nearshore
Nearshore
jurisdiction:
Nearshore KI - 13 - 6
Bankside
jurisdiction:
King County
Project sponsor:
King County
Budget:
$2,000,000
Acquisition
$
Restoration
PROJECTTYPE:KEYHABITAT:KCIT-DCE VC folder: 2010_10202w_NS-44.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdPark Public Lands N0300600 ft150
AGENDA ITEM #6. e)
Riparian
Ellis CreekNatural Area
Tramp Harbor Dock
8
7
t
h
A
v
e
SW
Dockton
Rd
SW
8
7
t
h
A
v
e
SW
Dockton
Rd
SW
SW Ellisport RdSW Ellisport Rd
Puget
SoundEl
l
i
sport CreekUNINCORPORATEDKING COUNTYVASHON ISLAND
NS-60
IMAGE_Ortho2019KCNAT
Tier 2 Project: NS-60Ellisport Creek Mouth Restoration
PROJECT DESCRIPTION:Acquire and restore habitat at Ellisport Creek stream mouth, and allow for fish passage.
PROJECT FACTS
Subwatershed:
Nearshore
Nearshore
jurisdiction:
Nearshore KI - 13 - 4;
KI - 13 - 5
Bankside
jurisdiction:
King County
Project sponsor:
King County
Budget:
$3,000,000
Acquisition
$
Restoration
PROJECTTYPE:KEYHABITAT:KCIT-DCE VC folder: 2010_10202w_NS-60.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdPark Public Lands N0300600 ft150
Nearshore
Pocket Estuary Planning/
Design
Riparian NS-67 Des Moines Creek TrailDes Moines Creek TrailDes MoinesBeach Park
Des MoinesCreek Park
South Marina Park
OverlookPark I
OverlookPark II
S 223rd St
S 222nd St
S 223rd St
S 222nd St
7th Ave SS 227th St
S 216th St
Des MoinesMemorial Dr SS 216th StS 216th St
DES MOINES
NORMANDYPARK
509
Puget
Sound
NS-67 Des Moines CreekIMAGE_Ortho2019KCNAT
Tier 2 Project: NS-67Des Moines Creek Estuary Restoration
PROJECT DESCRIPTION:Remove approximately 500 feet of hard shoreline armor and pull back fill material to create a more natural shoreline and stream transition.
PROJECT FACTS
Subwatershed:
Nearshore
Nearshore
jurisdiction:
Nearshore KI - 8 - 2
Bankside
jurisdiction:
City of Des Moines
Project sponsor:
City of Des Moines
Budget:
TBD
Restoration
PROJECTTYPE:KEYHABITAT:KCIT-DCE VC folder: 2010_10202w_NS-67.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdN0300600 ft150ParkPublic
Lands
Incorp. Area
Boundary
Nearshore
Pocket Estuary
Project
No.Project Name Project Type Project Description Sponsor
River mile and
Bank side/Nearshore
jurisdiction Primary Strategy (pick 1)Jurisdiction Goal alignment
NS-2 Myrtle Edwards Park Pocket
Beach Shallow Water Habitat
• Planning/Design
• Restoration
• Scoping/Reconnaissance
Remove shoreline armor and restore natural beach adjacent
to a previously created pocket beach.
Seattle Parks and
Recreation
Nearshore KI - 4 - 1 -
NAD
Protect, restore and
enhance marine shorelines
City of Seattle • Marine riparian vegetation
• Shoreline armor
NS-16 Dash Point State Park Estuary
Restoration and Water Quality
Improvements
• Restoration
• Scoping/Reconnaissance
Project will remove armoring to restore estuary and re-align
creek to more sinuous route. Improve water quality in park
through parking lot improvements, reduce erosion associated
with stormwater runoff, creosote-treated pedestrian bridge
replacement, and wetland enhancement.
Washington State Parks
& Recreation
Nearshore KI - MA - 014 Protect, restore and
enhance marine shorelines
City of Federal Way LG- Off-channel habitat
NS-22 Smith Cove Shallow Water
Rehabilitation
Planning/Design Remove some level of shoreline armor and plant native
vegetation along a stretch of barren riprap. The riprap leads
to a protected sandy pocket beach that exists at all tidal
elevations. There may be additional opportunity for nearshore
restoration on adjacent Port property. The Port also has a
marine habitat restoration pilot site adjacent to this project.
Seattle Parks and
Recreation
Nearshore KI - 3 -2/3 - 3
- NAD, KI - 3 - 3
Protect, restore and
enhance marine shorelines
City of Seattle • Marine riparian vegetation
• Shoreline armor
NS-35 Lower Shinglemill Creek
Habitat Restoration
Restoration Add LWD into stream reach west of Cedarhurst Road.King County Nearshore KI - 11 - 4 Protect, restore and
enhance marine shorelines
Vashon/Maury • Marine riparian vegetation
• Shoreline conservation
Table 3.
Marine Nearshore Subwatershed Tier 3 Projects
(continued on next page)
PAGE
98
PAGE
99 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update AGENDA ITEM #6. e)
NS-39 Walker Creek Headwaters Land
Acquisition
• Enhancement/Planting
• Restoration & Acquisition
• Scoping/Reconnaissance
The project plan is to seek partnership or acquisition
opportunities with the property owners within the project
area, with the goal of acquiring and restoring additional
contiguous areas beyond the current city-owned wetland
parcels within the project site.
City of Burien Nearshore KI - 7 - 3 Protect, restore and
enhance marine shorelines
City of Burien Shoreline conservation
NS-40 Salmon Creek Fish Barrier
Removal
• Planning/Design
• Restoration
The project plan is to seek a partnership or acquisition
opportunities with the property owners within the project
area, with the goals of removing the fish-barrier weir at the
mouth of the creek, and removing and replacing a culvert
with a modern fish passable one.
City of Burien Nearshore KI - 5 - 1 Protect, restore and
enhance marine shorelines
City of Burien • Marine riparian vegetation
• Shoreline armor
• Shoreline conservation
NS-42 Miller Creek Regional
Detention Facility
Planning/Design The project plan is to identify one or more large commercial
properties in Burien that have no existing stormwater
treatment or flow control, and partner with them to construct
regional stormwater facilities on their site(s).
City of Burien Nearshore KI - 7 - 3 Protect, restore and
enhance sediment and
water quality
City of Burien Shoreline conservation
NS-54 West Galer Street/32nd St.
Boat Ramp Shoreline Armor
Removal and Restoration
• Planning/Design
• Restoration
• Scoping/Reconnaissance
Remove/reduce shoreline armoring, remove fill, relocate
an SPU-owned pump station if feasible, and re-vegetate
shoreline. Potential acquisition of adjacent properties.
Seattle Public Utilities Nearshore KI - 3 - 2 Protect, restore and
enhance marine shorelines
City of Seattle Shoreline armor
NS-58 Tsugwalla Creek Pocket
Estuary Restoration Project
Restoration & Acquisition Restore fish passage and salt marsh habitat at mouth of
creek.
King County Nearshore KI - 13 - 15 /
KI - 13 - 14
Protect, restore and
enhance marine shorelines
Vashon/Maury • Marine riparian vegetation
• Shoreline armor
• Shoreline conservation
NS-59 Mileta Armor Removal and
shoreline restoration
Restoration Remove shoreline armoring, evaluate and improve fish
passage.
King County Nearshore KI - 13 - 10 Protect, restore and
enhance marine shorelines
Vashon/Maury • Marine riparian vegetation
• Shoreline armor
• Shoreline conservation
NS-68 Longfellow Creek Fish Passage
and Floodplain Restoration
• Acquisition
• Planning/Design
• Restoration
• Restoration & Acquisition
• Scoping/Reconnaissance
This project will evaluate restoration opportunities at five
sites along a 1.7-mile section of Longfellow Creek. Future
restoration may include: floodplain reconnection, fish
passage improvements (culvert replacements or daylighting),
stream channel realignment, stream channel and riparian
restoration, wetland creation and/or enhancement.
Seattle Public Utilities RM 0 / left bank Protect, restore, and
enhance riparian corridors
City of Seattle DUW - Riparian forest
NS-70 Fauntleroy Creek Fish Passage • Acquisition
• Planning/Design
• Restoration
• Restoration & Acquisition
Replace two aging fish passage barrier culverts with new
culverts that meet fish passage standards. Includes partial
daylighting and stream channel restoration.
Seattle Public Utilities Nearshore / KI - 5 - 1 Restore and improve fish
passage
City of Seattle • Marine riparian vegetation
• Shoreline armor
NS-72 Perkins Lane Protection and
Restoration Project/Perkins
Lane Utility Access Road
• Planning/Design
• Restoration
• Scoping/Reconnaissance
Assess feasibility of modifying the utility service road and
sewer access points in order to remove shoreline armor and
restore to a natural beach.
Seattle Public Utilities Nearshore KI - 3 - 2 Protect, restore and
enhance marine shorelines
City of Seattle • Marine riparian vegetation
• Shoreline armor
• Shoreline conservation
NS-73 Beall Creek Salmon Habitat
Project
Restoration Replace current surface water extraction system with a fish
friendly system to allow for the return of salmon and other
salmonids
Water District 19 2923039086/Water
District 19
Protect, restore and
enhance marine shorelines
Water District 19 • Marine riparian vegetation
• Shoreline armor
• Shoreline conservation
Project
No.Project Name Project Type Project Description Sponsor
River mile and
Bank side/Nearshore
jurisdiction Primary Strategy (pick 1)Jurisdiction Goal alignment
Table 3.
Marine Nearshore Subwatershed Tier 3 Projects, continued
PAGE
100
PAGE
101 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update AGENDA ITEM #6. e)
Tier 2 (Score 7-18) 9 projects
DUW-18 ....Codiga Off-channel Habitat Expansion
DUW-22 ...Cecil Moses
DUW-24 ...Carrossino Restoration
DUW-26 ...S 104th St. Bank Stabilization/Restoration
DUW-3 ......Seattle LA Freight Revetment Setback
DUW-60 ...Herring’s House Park Fish Access Improvement
DUW-61 ....George Long
DUW-63 ...S. 115th St. Road Setback
Tier 3 (Score <7) 2 projects
DUW-14 ....Duwamish Waterway Park
DUW-19 ....Southgate Creek Restoration
Duwamish Estuary Subwatershed 19 projects
Tier 1 (Score 18+) 8 projects
DUW-2 ......Rendering Plant
DUW-7 ......Chinook Wind
DUW-7a ....Chinook Wind - Extension
DUW-25 ...Desimone Oxbow Restoration
DUW-29 ...Seattle City Light North/Hamm Creek
DUW-32 ...Duwamish River People’s Park & Shoreline Habitat (Terminal 117)
DUW-64 ...U-Haul River Project
DUW-66 ...Terminal 25 South
PAGE
102 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
DUW-67.......Codiga to TCC Corridor
AGENDA ITEM #6. e)
DUW-3
DUW-2
DUW-7
DUW-7a
DUW-18
DUW-64 DUW-63
DUW-66
DUW-61
DUW-60
DUW-29
DUW-26
DUW-25
DUW-24DUW-22
DUW-19
DUW-18
DUW-14
DUW-32
2
1
8
9
3
4
5
6
7
12
10
11
Lake
Washington
Duwamish
R
iver
Miller CreekGreen
R
iver
Black River
405
900
599
518
509
99
99
99
5
Spokane St. Viaduct
Lake
Washington
Puget
Sound
Elliott Bay
Lake Burien
SEATTLE
SEATTLE
SEATTLE
BURIEN
UNINCORPORATED
KING COUNTY
TUKWILA
SEATAC
RENTON
MERCER
ISLAND
Note:The use of the information in this map is subject to the terms and conditions found at: www.kingcounty.gov/services/gis/Maps/terms-of-use.aspx. Your access and use is conditioned on your acceptance of these terms and conditions.
KCIT-DCE File: 2011_20202L_W9SHP_ProjMap_DUW.ai LPRE
GIS File:Q:\20009\WRIA9_Watershed.mxd KLINKAT
River mile
Project location and name
River/creek
Major road
Urban Growth Area Line
Duwamish Estuary
Subwatershed boundary
WRIA 9 boundary
Open water
Public lands
Incorporated Area
Figure __
Duwamish Estuary
Subwatershed Projects
1
N
0 1/2 Mile
October 2020
1/4
West Seattle Bridge
DUW-1
PAGE
103 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Figure 27.
Duwamish Estuary
Subwatershed Projects
AGENDA ITEM #6. e)
DUW-2
RM
10
Gr
e
e
n
R
i
v
e
r
T
r
a
i
l
-
T
u
k
w
i
l
a
Gre en R. T r a i l - Lower
Foster Golf Links
Foster Golf Links
57th Ave. SMini Park
Int
e
r
u
r
b
a
n
A
v
e
S 68th
Ave
S
900
5
D uw a m i s h River
TUKWILA
UNINCORPORATED
KING COUNTY
RENTON
DUW-2
K ING C OUNT Y
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
Public
Lands
Incorp. Area
BoundaryPark N0 200 400 600 ft
Backwater
Side Channel
Floodplain Riparian
Edge
Acquisition
$
Planning/
Design
Restoration
Scoping/
Reconnaissance
Duwamish
MarshDuwamish
Mudflat
Primary strategy
Protect, restore, and enhance channel complexity and
edge habitat.
Benefits:
• Increased rearing habitat
• Sediment quality improvement
Contribution to goals metrics:
• DUW - Riparian forest
• DUW - Shallow water habitat
PROJECT DESCRIPTION:
Acquire and restore
seven + acres with side
channel and backwater
habitat enhancements and
reforestation.
Tier 1 Project: DUW-2
Rendering Plant
PROJECT FACTS
Subwatershed:
Duwamish (DUW)
River mile:
Duwamish RM 10.1 - 9.7/
right bank
Bankside jurisdiction:
City of Tukwila
Project sponsor:
City of Tukwila
Budget: $9,730,000
PROJECT TYPE:
KEY HABITAT:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: Google Earth, 2020
KCIT-DCE file: 2010_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
PAGE
104 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
RM
6Green
R
iver
Tra
i
l
-
Lowe
r
G r e e n R i v e r T r ail - Tukw i l a
Site 1 Duwamish
Cecil MosesMemorial Park
Tukwila Intl BlvdAirport Way S99
99
599
D u w a m i s h R iver
TUKWILA
BURIEN East Marginal Way SDUW-7DUW-64
K ING C OUNT Y
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
Public
landsPark N0200400600 ftIncorp. Area
Boundary
Riparian
Acquisition
$
Restoration
Duwamish
MarshDuwamish
Mudflat
Primary strategy
Protect, restore, and enhance channel complexity and
edge habitat.
Benefits:
• Increased habitat connectivity
• Sediment quality improvement
Contribution to goals metrics:
• DUW - Riparian forest
• DUW - Shallow water habitat
PROJECT DESCRIPTION:
Expand and enhance low velocity, shallow water
rearing rearing habitat (shallow subtidal and
intertidal) in the Duwamish transition zone.
Tier 1 Project: DUW-7
Chinook Wind
PROJECT FACTS
Subwatershed:
Duwamish (DUW)
River mile:
Duwamish RM 6.7/
right bank
Bankside jurisdiction:
City of Tukwila
Project sponsor:
King County
Budget: $14,900,000
PROJECT TYPE:
KEY HABITAT:
Project Area Map: Ortho2019KCNAT aerial photo
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
PAGE
105 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
RM
6Green
R
iver
Tra
i
l
-
Lowe
r
G r e e n R i v e r T r ail - Tuk w i l a
Site 1 DuwamishCecil MosesMemorial Park
Tukwila Intl BlvdAirport Way S
99
99
599
D u w a m i s h River
TUKWILA
BURIEN East Marginal Way SDUW-64
K ING C OUNT Y
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
Public
LandsPark N0200400600 ftInc. Area
Boundary
Riparian
Acquisition
$
Restoration
Duwamish
MarshDuwamish
Mudflat
Primary strategy
Protect, restore, and enhance channel complexity and
edge habitat.
Benefits:
• Increased habitat connectivity
• Recreation opportunities
• Sediment quality improvement
Contribution to goals metrics:
• DUW - Riparian forest
• DUW - Shallow water habitat
PROJECT DESCRIPTION:
Expand and enhance the land between Chinook
Wind Mitigation and Duwamish Gardens to create a
unified park and rest.
Tier 1 Project: DUW-7a
Chinook Wind Extension
PROJECT FACTS
Subwatershed:
Duwamish (DUW)
River mile:
Duwamish RM 6.8/
right bank
Bankside jurisdiction:
City of Tukwila
Project sponsor:
City of Tukwila
Budget: $1,418,000
Project Area Map: Ortho2019KCNAT aerial photo
KCIT-DCE file: 2010_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
PROJECT TYPE:
KEY HABITAT:
Edge
Planning/
Design
PAGE
106 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
DUW-25
6
RM
6
Duwamish River
Green R
iver Tra
il
-
Lower
Site 1
Duwamish
Cecil Moses
Memorial Park
Turning Basin
Number 3
East
Ma
rg
ina
l
Way
SEast
Ma
rg
ina
l
Way
S
E
a
s
t
M
a
rg
ina
l
Wa
y
S
E
a
s
t
M
a
rg
ina
l
Wa
y
STukwila Intl BlvdTukwila Intl BlvdS Boeing
Access RdS Boeing
Access Rd Airpo
r
t
Wa
y
S
Interurban
Interurban
Av
e
.
S
.
Av
e
.
S
.
99
TUKWILA
SEATTLE
BURIEN
K ING C OUNT Y
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
Public
LandsPark N0200400600 ftIncorp. Area
Boundary
Primary strategy
Protect, restore, and enhance channel complexity and
edge habitat.
Benefits:
• Increased rearing habitat
• Sediment quality improvement
Contribution to goals metrics:
• DUW - Riparian forest
• DUW - Shallow water habitat
• LG - O-channel habitat
PROJECT DESCRIPTION:
Acquire and restore 45.4-acre site located on the
western shore of the Duwamish River between river
miles 5 and 6 resulting in 23.6 acres of marsh
created, 10.8 acres of vegetation, and 34.4 acres
refuge habitat created.
Tier 1 Project: DUW-25
Desimone Oxbow Restoration
PROJECT FACTS
Subwatershed:
Duwamish (DUW)
River mile:
Duwamish RM 6.5 -
5.3/left bank
Banksidejurisdiction:
City of Tukwila
Project sponsor:
Unknown
Budget: $84,193,945
PROJECT TYPE:
KEY HABITAT:
Project Area Map: Ortho2019KCNAT aerial photo
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
Backwater
Side ChannelRiparianEdge
Enhancement/
Planting
Acquisition
$
Planning/
Design
Restoration
Duwamish
Marsh
Duwamish
Mudflat
PAGE
107 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
RM
5
DUW-29Duwamish River
G
r
e
e
n
R
i
v
e
r
T
r
a
i
l
-
L
o
w
e
r
Port of Seattle Tr
ails
Hamm CreekNatural Area
Turning BasinNumber 3
D
e
s
M
o
i
n
e
s
M
em
o
r
i
a
l
D
r
S
99
TUKWILA
UNINCORPORATED
KING COUNTY
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
Public
Lands
Incorp. Area
BoundaryPark N0200400600 ft
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan • November 2020
Primary strategy
Protect, restore, and enhance channel complexity and
edge habitat.
Benefits:
• Increased rearing habitat
• Sediment quality improvement
Contribution to goals metrics:
• DUW - Shallow water habitat
PROJECT DESCRIPTION:
Create o channel habitat and shallow water
esturarine habitat in the area north of the existing
Duwamish 230 kV - 26 kV substation.
Tier 1 Project: DUW-29
Seattle City Light North/Hamm Creek
PROJECT FACTS
Subwatershed:
Duwamish (DUW)
River mile:
Duwamish RM 5.0 -
4.8/ left bank
Banksidejurisdiction:
City of Seattle
Project sponsor:
Seattle City Light
Budget:
TBD
PROJECT TYPE:
KEY HABITAT:
Site Photo: Wash. Dept. of Ecology Project Area Map: Ortho2019KCNAT aerial photo
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
Backwater
Nearshore
Pocket Estuary
Restoration
Tributary
PAGE
108 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
RM
4
DUW-32
Duwamish
Ri
verGreen River Trail - LowerDuwamish
Trail
King County
International Airport
Boeing Field
14th Ave S16th Ave SEast
M
ar
g
inal
W
ay
S
S Cloverdale St
S
R 99
99
TUKWIL A
SEATTLE
SEATTLE
UNINCORPORATED
KING COUNT Y
K ING C O U N T Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
Public
Lands
N0200400600 ftIncorp. Area
Boundary
Edge
Enhancement/
Planting
Planning/
Design
Restoration
Duwamish
Marsh
Duwamish
Mudflat
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan • November 2020
Primary strategy
Protect , restore, and enhance channel complexit y and
edge habitat .
Benefits:
• Increased habitat connectivit y
• Recreation oppor tunities
• Sediment quality improvement
Contribution to goals metrics:
• DUW - Shallow water habitat
PROJECT DESCRIPTION:
Tier 1 Project: DUW-32Duwamish River People’s Park &Shoreline Habitat (Terminal 117)
PROJECT FACTS
Subwatershed:
Duwamish (DUW)
River mile:
Duwamish 4.5 - 4.1 /
left bank
Jurisdiction:
Por t of Seattle
Project sponsor:
Por t of Seattle
Budget:
TBD
PROJECT TYPE:
KEY HABITAT:
Site Photo: Wash. Dept. of Ecology Project Area Map: Ortho2019KCNAT aerial photo
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
Restore approximately 13.5 acres and 2,050 linear
feet of upland and aquatic habitats. The project will
expand o-channel habitat as well as establish
marsh vegetation and riparian forest, restore
estuarine shoreline via removal of armoring, and
add large wood.
PAGE
109 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
PAGE
110 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
DUW-64
RM
6Green River Trail
- Lower
G r e e n R i v e r T r ail - Tuk w i l a
Site 1 Duwamish
Cecil MosesMemorial Park
Tukwila Intl BlvdAirport Way S
99
99
599
D u w a m i s h River
TUKWILA
BURIEN East Marginal Way SK ING C OUNT Y
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
Incorp. Area
BoundaryPublic
LandsPark N0200400600 ft
Riparian
Acquisition
$
Restoration
Duwamish
MarshDuwamish
Mudflat
Primary strategy
Protect, restore, and enhance channel complexity and
edge habitat.
Benefits:
• Increased rearing habitat
• Recreation opportunities
• Sediment quality improvement
Contribution to goals metrics:
• DUW - Riparian forest
• DUW - Shallow water habitat
PROJECT DESCRIPTION:
Acquire and restore 4.4-acre parcel by creating
o-channel mudflat, marsh, and riparian habitat.
Tier 1 Project: DUW-64
U-Haul River Project
PROJECT FACTS
Subwatershed:
Duwamish (DUW)
River mile:
Duwamish RM 6.5 - 6.3/
right bank
Bankside jurisdiction:
City of Tukwila
Project sponsor:
City of Tukwila
Budget: $11,770,000
PROJECT TYPE:
KEY HABITAT:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: Google Earth, 2020
KCIT-DCE file: 2010_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
Backwater
Edge
Planning/
Design
Scoping/
Reconnaissance
AGENDA ITEM #6. e)
PAGE
111 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
DUW-66
Duwamish River Duwamish RiverDuwamish
River Elliott Bay TrailWest Seattle Bridge Trail
Harbor MarinaCorporate Centerat Terminal 102
SW Spokane St E Marginal Way SS Spokane St
West Seattle Brg
E Marginal Way SWest Seattle Bridge
Seattle
Harbor
Island
UNINCORPORATED
KING COUNTY
UNINCORPORATED
KING COUNTY
99
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
Public
Lands
N0200400600 ftPark
Backwater
Edge
Enhancement/
Planting
Planning/
Design
Restoration
Duwamish
Marsh
Duwamish
Mudflat
Primary strategy
Protect, restore, and enhance channel complexity and
edge habitat.
Benefits:
• Increased rearing habitat
• Sediment quality improvement
Contribution to goals metrics:
• DUW - Shallow water habitat
PROJECT DESCRIPTION:
Restore critically needed estuarine in the East
Waterway. Project will expand o-channel habitat as
well as establish marsh vegetation and riparian
forest, restore estuarine shoreline via removal of
armoring & creosote pile, and add large wood.
Tier 1 Project: DUW-66
Terminal 25 South
PROJECT FACTS
Subwatershed:
Duwamish (DUW)
River mile:
Duwamish 0.4 /
right bank
Jurisdiction:
Port of Seattle
Project sponsor:
Port of Seattle
Budget:
TBD
PROJECT TYPE:
KEY HABITAT:
Project Area Map: Ortho2019KCNAT aerial photo
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
AGENDA ITEM #6. e)
Tier 2 Project: DUW-3
Seattle LA Freight Revetment Setback
PROJECT DESCRIPTION:
Acquire properties, setback the revetment, create
shallow water edge habitat with backwater refuge
for salmonids, and improve shoreline conditions in
this freight district in Tukwila.
PROJECT FACTS
Subwatershed:
Duwamish (DUW)
River mile:
RM 9.7- 10.1 /
right bank
Bankside
jurisdiction:
City of Tukwila
Project sponsor:
City of Tukwila
Budget:
$5,230,000
PROJECT TYPE: KEY HABITAT:
FloodplainEdge
Enhancement/Planting
Planning/
Design
Acquisition
$
Restoration
Scoping/Reconnaissance
Duwamish
Marsh
Duwamish
Mudflat
Riparian
5
6
t
h
P
l
S
5
1
s
t
P
l
S
S
1
3
0
t
h
P
l
S 125th St
56th Ave S49th Ave SGa
t
e
w
a
y
D
r 50th Ave SB
e
a
c
o
n
C
o
a
l
M
i
n
e
R
d
S
S 124th St
57th Ave SS Pamela D
r Private RdS 122nd Ln
S 122nd
St
48th Ave SS
L
a
n
g
s
t
o
n
R
d
S 1
3
3
r
d
S
t48th Ave S56th Ave S57th Ave SGateway Dr57th Ave S51
s
t
P
l
S
5
1
s
t
P
l
S
S
1
3
0
t
h
P
l
S 124th St
57th Ave S5
1
s
t
P
l
SS
130
th
P
l
DUW-3
Duw am is h River
Gre
e
n River Trail -
T
ukwila
Foster Golf Links
Codiga
Park
Green River Trail Site
S 129th St
5
0
t
h
P
l
S
S 124th St
Int
e
r
u
r
b
a
n
A
v
e
S
TUKWILA
UNINCORPORATED
KING COUNTY
N0 300 600 ft150ParkPublic
Lands
Incorp. Area
Boundary
DUW-3
RM
9
5
599
900
KCIT-DCE VC folder: 2010_10202w_DUW-3.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxd9RM
9Gree
n RiverTrai l - T ukw ila
Int
e
r
u
r
b
a
n
A
v
e
SS 133rd StS 129th St
5
0
t
h
P
l
S
S 124th St
Duwamish
R
i
verTUKWILA
UNINCORPORATED
KING COUNTY
Codiga
Park
Foster Golf Links
TukwilaComm.Center
DUW-18
5
900
599
IMAGE_Ortho2019KCNAT
N0 300 600 ft150ParkPublic
Lands
Incorp. Area
Boundary
Tier 2 Project: DUW-18
Codiga Off-channel Habitat Expansion
PROJECT DESCRIPTION:
Expand Codiga Park habitat restoration project by
turning the backwater area into a side channel to
increase rearing and refuge for salmon during
higher flows.
PROJECT FACTS
Subwatershed:
Duwamish (DUW)
River mile:
RM 8.6/right bank
Banksidejurisdiction:
City of Tukwila
Project sponsor:
City of Tukwila
Budget: $642,000
PROJECTTYPE:KEYHABITAT:KCIT-DCE VC folder: 2010_10202w_ DUW-18.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdRiparian
Side
Channel
Floodplain
Duwamish
Marsh
Planning/
Design
Restoration
Duwamish
Mudflat
PAGE
112 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
Tier 2 Project: DUW-22
Cecil Moses
PROJECT DESCRIPTION:
Enhance access to and expand existing o-channel
habitat to increase quality and quantity of available
rearing habitat in the transition zone by expanding
existing inlet/outlet, removal of tire revetment, and
potential acquisition and restoration of adjacent
downstream creek parcel.
PROJECT FACTS
Subwatershed:
Duwamish (DUW)
River mile:
RM 6.3 / left bank
Bankside jurisdiction:
King County
Project sponsor:
Seattle Parks and Recreation
Budget: $5,000,000
PROJECTTYPE:KEYHABITAT:
Duwamish
Marsh
Acquisition
$
Restoration Duwamish
Mudflat Green River Trai
l -
Lower
Green River Trail
-
Tukwila
Cecil Moses
Memorial
Park S 112th StTukwila Intl BlvdDuwami
s
h River
TUKWILA
BURIEN
UNINCORPORATED
KING COUNTY
DUW-22
99
N0300600 ft150
RM
6
KCIT-DCE VC folder: 2010_10202w_DUW-22.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdPark Public
Lands
Incorp. Area
Boundary
PAGE
113 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update KCIT-DCE VC folder: 2010_10202w_DUW-24.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdUNINCORPORATED KING COUNTY
Tier 2 Project: DUW-24
Carrossino Restoration
PROJECT DESCRIPTION:
Acquire properties and create shallow mudflat,
marsh, and backwater habitats.
PROJECT FACTS
Subwatershed:
Duwamish (DUW)
River mile:
6 - 6.1 / right bank
Bankside
jurisdiction:
City of Tukwila
Project sponsor:
City of Tukwila
Budget: $16,304,000
PROJECTTYPE:KEYHABITAT:
Backwater
Riparian
Edge
Enhancement/
Planting
Acquisition
$
Planning/
Design
Restoration
Duwamish
Marsh
Duwamish
Mudflat Green R
iver Trail -
Lower
Green River Trail
-
Tukwila
Cecil Moses
Memorial
Park S 112th St
Tukwila Intl BlvdDuwami
s
h River
TUKWILA
BURIEN
UNINCORPORATED
KING COUNTY
DUW-24
99
N0300600 ft150
RM
6
Park Public
Lands
Incorp. Area
Boundary
AGENDA ITEM #6. e)
PAGE
114 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
DUW-26
99 RM
6
East
Ma
rg
ina
l
Way
SEas
t
Ma
rg
ina
l
Wa
y
SAi
rpo
r
t
Way
STukwila Intl BlvdTUKWILA
SEATTLE
S 102nd St
S 102nd StS 104t
h
S
t
D
u
wamish RiverTier 2 Project: DUW-26
S. 104th St. Bank Stabilization/Restoration
PROJECT DESCRIPTION:
Acquire properties, abandon and remove the road,
and create shallow water edge and backwater
habitat in the transition zone.
PROJECT FACTS
Subwatershed:
Duwamish (DUW)
River mile:
5.6 / right bank
Bankside
jurisdiction:
City of Tukwila
Project sponsor:
City of Tukwila
Budget: $5,930,000
PROJECTTYPE:KEYHABITAT:Green River Tra
il
-
Lower
Backwater
Riparian
Edge
Acquisition
$
Planning/
Design
Restoration
Scoping/Reconnaissance
Duwamish
Marsh
Duwamish
Mudflat
N0 300 600 ft150ParkPublic
Lands
Incorp. Area
Boundary
KCIT-DCE VC folder: 2010_10202w_DUW-26.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdTier 2 Project: DUW-60
Herring's House Park Fish Access Improvement
PROJECT DESCRIPTION:
Adaptively manage an older restoration project to
increase fish use by expanding channel opening
width, removing shoreline armor and considering
a bridge over the channel for recreational access.
PROJECT FACTS
Subwatershed:
Duwamish (DUW)
River mile:
RM 1.1 / left bank
Bankside
jurisdiction:
City of Seattle
Project sponsor:
Seattle Parks and
Recreation
Budget: $1,250,000
KEYHABITAT:
Side Channel
Nearshore
Pocket Estuary
Riparian
PROJECTTYPE:
Planning/
Design
Restoration Duwamish TrailDuwamish Tra
i
l
Puget
Park
West
Duwamish
Greenbelt
Pigeon
Point
Park Herrings
House
Park
(Tualtwx)
Terminal
108
Park
Terminal
107
Park
Kellogg
IslandWest
Duwamish GS:
Puget Park
SW Da
ws
o
n
St West Marg
ina
l
Way
SW
DUW-60
RM
1
Duwamish
R
iver
SEATTLE
N0 300 600 ft150ParkPublic Lands
KCIT-DCE VC folder: 2010_10202w_DUW-60.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdAGENDA ITEM #6. e)
PAGE
115 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Tier 2 Project: DUW-61
George Long
PROJECT DESCRIPTION:
Create backwater refuge and riparian habitat
at the uppermost limit of the transition zone.
PROJECT FACTS
Subwatershed:
Duwamish (DUW)
River mile:
10.4 / left bank
Bankside
jurisdiction:
City of Tukwila
Project sponsor:
City of Tukwila
Budget: $9,500,000
PROJECTTYPE:KEYHABITAT:
Backwater
Edge
Enhancement/
Planting
Acquisition
$
Restoration
Scoping/
Reconnaissance
Duwamish
Marsh
Duwamish
Mudflat
Riparian
IMAGE_Ortho2019KCNAT
DUW-61
Green RiverDuwam ish R iverGreen River Tr
a
i
l
-
L
o
w
e
r
G
r
e
e
n
R
i
v
e
r
T
r
a
i
l
-
T
u
k
w
i
l
a
Foster Golf Links
Macadam Winter Garden
Fort Dent Park
S 144th St 58th Ave SIn
te
ru
r
ban
A
v
e
S
SR 9
0
0
Green River
TUKWILA
UNINCORPORATEDKING COUNTY
RM
10
DUW-61
N0300600 ft150ParkPublic
Lands
Incorp. Area
Boundary
In
t
e
r
u
r
b
a
n
A
v
e
S
KCIT-DCE VC folder: 2010_10202w_DUW-61.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdTier 2 Project: DUW-63
S. 115th St. Road Setback
PROJECT DESCRIPTION:
Relocate local road and create shallow water edge,
backwater mudflat, marsh, and riparian habitat as
part of the Duwamish Hill Preserve Master Plan.
PROJECT FACTS
Subwatershed:
Duwamish (DUW)
River mile:
RM 7 / right bank
Bankside
jurisdiction:
City of Tukwila
Project sponsor:
City of Tukwila
Budget:
$4,699,000
PROJECTTYPE:KEYHABITAT:
Side ChannelEdge
Restoration
Scoping/
Reconnaissance
Duwamish
Marsh
Duwamish
Mudflat
DuwamishHill Preserve
S 115th St
42nd Ave SS 112th St
S 115th St
42nd Ave SS 112th St East
Marg
ina
l
Way
S
Inte
r
u
r
b
a
n
A
v
e
SEast
Marg
ina
l
Way
S
Inte
r
u
r
b
a
n
A
v
e
STukwila Intl BlvdAirport Way STUKWILA
RM
7
599
5
Green River Trail - Tukwila
DUW-63
D u w a m i s h R iver
N0300600 ft150
KCIT-DCE VC folder: 2010_10202w_DUW-63.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdPark Public
Lands
AGENDA ITEM #6. e)
Table 4 Duwamish Estuary Subwatershed Tier 3 Projects
PAGE
116
PAGE
117 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Proj#Project Name Project Type Project Description Sponsor
River mile and Bank
side/Nearshore
jurisdiction Primary Strategy (pick 1)Jurisdiction Goal Alignment
DUW-14 Duwamish Waterway
Park
• Acquisition
• Planning/Design
• Restoration
• Scoping/Reconnaissance
Acquire adjacent properties, pull back bank armoring, revegetate. incorporate
recreational uses.
Seattle Parks and
Recreation
RM 3.6/left bank Protect, restore and enhance
marine shorelines;
City of Seattle Marine riparian vegetation
Shoreline armor
Shoreline conservation
DUW-19 Southgate Creek
Restoration
• Other
• Planning/Design
• Restoration
• Acquisition
• Scoping/Reconnaissance
This project would improve fish passage, water quality and flooplain/flood-
control in Southgate Creek, which is piped and channelized through most of
its lower reach; the confuence of the Green would be improved for off-channel,
tributary Chinook use. Studies are required.
City of Tukwila RM 7.90/left bank Protect, restore and enhance
instream flows and cold water
refugia
City of Tukwila DUW - Riparian forest
DUW - Shallow water habitat
9RM
9Gree
n RiverTrai l - T ukw ila
Int
e
r
u
r
b
a
n
A
v
e
SS 133rd StS 129th St
5
0
t
h
P
l
S
S 124th St
Duwamish
R
i
verTUKWILA
UNINCORPORATED
KING COUNTY
Codiga
Park
Foster Golf Links
TukwilaComm.Center
DUW-67
5
900
599
IMAGE_Ortho2019KCNAT
N0 300 600 ft150ParkPublic
Lands
Incorp. Area
Boundary
Tier 2 Project: DUW-67
Codiga to TCC Corridor
PROJECT DESCRIPTION:
Acquire properties to create a public greenbelt and
shallow water and riparian habitat extending from
Codiga Park to the Tukwila Community Center.
PROJECT FACTS
Subwatershed:
Duwamish (DUW)
River mile:
RM 8.1-8.3/
right bank
Bankside
jurisdiction:
City of Tukwila
Project sponsor:
City of Tukwila
Budget:
$12,525,000
PROJECT TYPE:KEY HABITAT:KCIT-DCE VC folder: 2010_10202w_ DUW-18.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdBackwater
Duwamish
Marsh
Riparian
EdgeAcquisition
$
Planning/
Design
Restoration
Scoping/
Recon.
Duwamish
Mudflat
Education
& Outreach Enhancement/
Planting
AGENDA ITEM #6. e)
PAGE
118 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Tier 2 (Score 7-18) 19 projects
LG-1 .........Reddington Habitat Creation
LG-5 ........Northeast Auburn Creek Restoration
LG-7 .........Mullen Slough
LG-10 ......Boeing Levee Setback Habitat Rehabilitation
LG-12 .......Briscoe Park Off-channel Habitat
LG-17 .......Fort Dent Revetment Setback
LG-18 .......Black River Marsh
LG-19 .......Lower Springbrook Reach Rehabilitation
LG-23 ......8th Street Bridge to 104th Ave Park Off-Channel
Habitat
LG-26......Valentine Revetment Setback
Tier 3 (Score <7) 13 projects
LG-2 ........Olson Creek Restoration
LG-15.......Nelsen Side Channel
LG-16 ......Gilliam Creek Fish Passage and Riparian
Rehabilitation
LG-20 .....Riverview Plaza Off-channel Habitat Creation
LG-21 .......Best Western Revetment Setback
LG-38 .....Fenster Slough Wetland Connection
LG-43 .....Panther Creek at East Valley Road Improvement
Project
LG-27 ......8th Street Acquisitions
LG-30 .....Mill Creek to Washington Ave Bridge Acquisitions
and Restoration
LG-31.......South of Veteran’s Drive Floodplain Reconnection
LG-32 ......Foster Park Floodplain Reconnection
LG-37 ......Strander Boulevard Off-channel Habitat Creation
LG-46 .....Mill Creek Protection and restoration near
Emerald Downs
LG-49 .....Horseshoe Bend Levee Riparian Habitat
Improvements
LG-51 ......Milwaukee 2 Improvements
LG-55 .....Frager Road Levee Setback
LG-52......Panther Creek at Talbot Road South Fish Passage
Improvement
LG-53 .....Signature Pointe Levee Improvements
LG-54 .....SR 516 to S 231st Way Levee
LG-56 .....Kent Airport Levee Setback
LG-57 ......Barnaby Truong Off-Channel Habitat Creation
LG-58 .....Briscoe Levee Riparian Habitat Improvements
Lower Green River Subwatershed 45
projects
Tier 1 (Score 18+) 13 projects
LG-3 ........Horsehead Restoration Project
LG-6 ........Wrecking Yards Restoration Project
LG-8 ........Lower Mill Creek Channel Restoration
LG-22 ......Wetland Floodplain Off-Channel Habitat
Reconnection
LG-28......North Green River Park
LG-29......North of Veteran’s Drive Floodplain
Reconnection
LG-33 .....Midway Creek Wetland Complex
LG-34 .....Johnson Creek Floodplain Project
LG-35 .....P-17 Stormwater Pond Connection
LG-39 .....Port of Seattle Mitigation Site Floodplain
Connection
LG-40 .....Downey Side Channel Restoration
LG-42 .....Lower Russell Road: Habitat Area A
LG-45 .....Teufel Off Channel Habitat Restoration
AGENDA ITEM #6. e)
FEDERALWAY
LG-8
LG-7
LG-6
LG-5
LG-3
LG-1
LG-2
LG-57
LG-55
LG-54
LG-53
LG-56
LG-51
LG-49
LG-46
LG-45
LG-43
LG-52
LG-38
LG-27
LG-26
LG-23
LG-39
LG-22
LG-28
LG-30
LG-32
LG-33
LG-31
LG-29
LG-34
LG-35
LG-37LG-20 LG-21
LG-19LG-17
LG-16LG-15
LG-42
LG-10
LG-40
LG-58
LG-12
M
i
l
l
C
r
.Springbook Cr.S. Mil
l
C
r
.
Black River
Green Ri
ve
r
405
167
18
5
AngleLake
Star Lake
Panther
Lake
Lake
Geneva
KENT
KENT
KENT
AUBURN
RENTON
TUKWILA
ALGONA
River mile
Project location
River/creek
Major road
Urban Growth Area
line
Lower Green River
Subwatershed
boundary
WRIA 9 boundary
Open water
Public lands
Incorporated area
Figure __
Lower Green River
Subwatershed Projects
0 1/2 1 2 Miles
N
Note:The use of the information in this map is subject to the terms and conditions found at: www.kingcounty.gov/services/gis/Maps/terms-of-use.aspx. Your access and use is conditioned on your acceptance of these terms and conditions.
KCIT-DCE File: 2011_20202L_W9SHP_ProjMap_LGR.ai LPRE
GIS File:Q:\20009\WRIA9_Watershed.mxd KLINKAT
1
PAGE
119 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Figure 28.
Lower Green River
Subwatershed Projects
AGENDA ITEM #6. e)
RM
26
RM
27Green River Trail - KentGr
e
e
n
R
i
v
e
r
Mill Creek
North Green
River Park
Horsehead Bend
Natural Area
Horsehead Bend
Natural Area
UNINCORPORATED
KING COUNTY
CITY OF KENT
S 259th St
S262nd
St
S 266th St
9
4
t
h
P
l
S
Green River Rd
LG-3
K ING C OUNT Y
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
Urban Growth
Area Line
0 300 ft150Reiten RdPublic
Lands
Incorp. Area
BoundaryPark N
Backwater Floodplain
RiparianEdge
Restoration
Primary strategy
Protect, restore, and enhance floodplain connectivity.
Benefits:
• Increased habitat connectivity
• Increased rearing habitat
• Water temperature reduction
Contribution to goals metrics:
• LG - Large woody debris
• LG - O-channel habitat
• LG - Riparian forest
PROJECT DESCRIPTION:
Create approximately 13 acres of backwater habitat
and revegetate 3,000 feet of river bank.
Tier 1 Project: LG-3
Horsehead Restoration Project
Project Area Map: Ortho2019KCNAT aerial photo
VC file: 2010_10202L_W9SHRPfact_HORSEHEAD.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxd
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
25.7 - 26.5 / left bank
Bankside jurisdiction:
King County
Project sponsor:
King County
Budget: $11,100,000
PROJECT TYPE:
KEY HABITAT:
PAGE
120 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
LG-6
RM
24
Green River
RMRM Interurban Trail - KentGreen River Trail - KentGreen River Trail - KentGreen River Trail - Kent
Foster
Park
Green River
Trail Site
Interurban
Trail Site - KentSR 167S 259th StS 259th St
72nd Ave S72nd Ave S1st Ave S1st Ave S79th Ave S79th Ave S3rd Ave S3rd Ave S74th Ave S74th Ave SS 266th StS 266th St
S 262nd St 80th Ave S80th Ave SS 261st StS 261st St
KENT
KENT
KENT
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
UNINCORPORATED
KING COUNTY
PROJECT AREA MAP
Public
Lands
N0200400600 ftParkUrban Growth
Area Line Bndy.
EdgeBackwater Floodplain
Acquisition
$
Restoration
Primary strategy
Protect, restore, and enhance floodplain connectivity.
Benefits:
• Increased habitat connectivity
• Increased rearing habitat
• Water temperature reduction
Contribution to goals metrics:
• LG - O-channel habitat
• LG - Riparian forest
PROJECT DESCRIPTION:
Acquire, remediate and restore wrecking yards
with side channels and backwater features.
Tier 1 Project: LG-6
Wrecking Yards Restoration
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
24.1 - 24.9 / left bank
Banksidejurisdiction:
King County
Project sponsor:
King County
Budget:
$37,000,000
PROJECT TYPE:
Site Photo: Google Earth Project Area Map: Ortho2019KCNAT aerial photo
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
Side channel WetlandRiparian
KEY HABITAT:
PAGE
121 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
Mill CreekS 277th St
West Valley Hwy N68th Ave S167
AUBURN
KENT
UNINCORPORATED
KING COUNTY
LG-8
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
Public
Lands
N0200400 ftInc. Area
BoundaryParkUrban Growth
Area Line Bndy.
Edge Floodplain
Acquisition
$
Restoration
Tributary
Primary strategy
Protect, restore, and enhance channel complexity and
edge habitat.
Benefits:
• Increased habitat connectivity
• Increased rearing habitat
• Water temperature reduction
Contribution to goals metrics:
• LG - Large woody debris
• LG - Riparian forest
PROJECT DESCRIPTION:
Improve aquatic habitat by remeandering the
tributary channel, revegetating, and adding large
wood to the creek channel.
Tier 1 Project: LG-8
Lower Mill Creek Channel Restoration
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 23.7/left bank
(Mill Creek 0.3-2.3)
Banksidejurisdiction:
King County
Project sponsor:
King County
Budget:
$23,900,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
PAGE
122 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
PAGE
123 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
277th St C o r r id o r T r a ilLG-22
RM
27
Gre
e
n
R
i
v
e
r
Mill Cr.
North Green
River Park
Mill Creek
Earthworks Park
Riversands
Park
G
r
e
e
n
R
i
v
e
r
R
d
SE 267th StWoodland Way SS 277th St
KENT
KENT
AUBURN
UNINCORPORATED
KING COUNTY
K ING C OUNT YSeattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
Public
Lands
N0200400 ftInc. Area
BoundaryParkUrban Growth
Area Line Bndy.
Edge Floodplain
Acquisition
$
Restoration
TributarySide channel Wetland
Riparian
Primary strategy
Protect, restore, and enhance floodplain connectivity.
Benefits:
• Habitat preservation
• Increased habitat connectivity
• Increased rearing habitat
Contribution to goals metrics:
• LG - O-channel habitat
• LG - Riparian forest
PROJECT DESCRIPTION:
Acquire and restore approximately 30 acres of
floodplain wetlands and provide access to 2,000
feet of non-natal tributary rearing habitat. Project
would address an existing fish barrier at the mouth
of the creek and setback 1,800 feet of Green River
Road. Project design will need to consider future
location of the Green River Trail.
Tier 1 Project: LG-22
Wetland Floodplain Off-channel Habitat Reconnection
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
27.2 - 27.6 /
right bank
Jurisdiction:
King County
Project sponsor:
King County
Budget:
$1,165,000
PROJECT TYPE:
Site Photo: Google Earth Project Area Map: Ortho2019KCNAT aerial photo
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
AGENDA ITEM #6. e)
LG-28
RM
27
Mill Cr.
Gr
e
e
n
R
i
v
e
r
Tr
a
i
l
-
K
e
n
t
North Green
River Park
Horsehead Bend
Natural Area
Mill Creek
Earthworks
Park
Green River RdWoodland Way SGree
n
R
i
v
e
r
R
d
S
Gr
e
e
n
R
i
v
e
r
KENT
UNINCORPORATED
KING COUNTY
UNINCORPORATED
KING COUNTY
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
Public
Lands
N0200400 ft.Park Urban Growth
Area Line Bndy.
Inc. Area
Boundary
EdgeBackwater Floodplain
Acquisition
$
Restoration
Side channel
Wetland
Riparian Tributary
Primary strategy
Protect, restore and enhance floodplain connectivity.
Benefits:
• Flood risk reduction
• Increased habitat connectivity
• Increased rearing habitat
Contribution to goals metrics:
• LG - Bank armor
• LG - O-channel habitat
PROJECT DESCRIPTION:
Restore floodplain habitat by removing revetments,
restoring reconnecting floodplain wetland, creating
side channels and backwater features, and
integrating stream channel from the adjacent project
(LG-22). Project design will need to preserve or
relocate important regional recreational amenities
(i.e., soccer fields and Green River access).
Tier 1 Project: LG-28
North Green River Park
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
26.5 - 27.3 /
right bank
Jurisdiction:
King County
Project sponsor:
King County
Budget:
$17,100,000
PROJECT TYPE:
Site Photo: Google Earth Project Area Map: Ortho2019KCNAT aerial photo
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
LG-22 Frager Rd TrailLG-29
RM
19
Gr
e
e
n
R
i
v
e
rGreen River Trail - KentKent Puget
Power Trail
Green River Trail - KentGrandview
Park
Green River
Trail Site - Kent
Green RiverNaturalResources Area
Van DorensLanding Park
Rive
rv
iew
B
lvd
S
Veterans Dr
KENT
KENT
SEATAC
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
Public
Lands
N0200400 ft.Park Inc. Area
Boundary
Floodplain
Restoration
WetlandRiparian
Primary strategy
Protect, restore and enhance floodplain connectivity.
Benefits:
• Increased habitat connectivity
• Increased rearing habitat
• Recreation opportunities
Contribution to goals metrics:
• LG - O-channel habitat
PROJECT DESCRIPTION:
Reconnect floodplain wetland to river, improve
wetland area, while preserving Frager Road Trail's
connection to the Green River.
Tier 1 Project: LG-29
North of Veterans Drive Floodplain
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 18.9 - 19.2/
left bank
Banksidejurisdiction:
City of Kent
Project sponsor:
City of Kent
Budget:
TBD
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
Enhancement/
Planting
Planning/
Design
PAGE
124 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
Frager Rd TrailLG-29
RM
19
Gr
e
e
n
R
i
v
e
rGreen River Trail - KentKent Puget
Power Trail
Green River Trail - KentGrandview
Park
Green River
Trail Site - Kent
Green RiverNaturalResources Area
Van DorensLanding Park
Rive
rv
iew
B
lvd
S
Veterans Dr
KENT
KENT
SEATAC
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
Public
Lands
N0200400 ft.Park Inc. Area
Boundary
Floodplain
Restoration
WetlandRiparian
Primary strategy
Protect, restore and enhance floodplain connectivity.
Benefits:
• Increased habitat connectivity
• Increased rearing habitat
• Recreation opportunities
Contribution to goals metrics:
• LG - O-channel habitat
PROJECT DESCRIPTION:
Reconnect floodplain wetland to river, improve
wetland area, while preserving Frager Road Trail's
connection to the Green River.
Tier 1 Project: LG-29
North of Veterans Drive Floodplain
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 18.9 - 19.2/
left bank
Banksidejurisdiction:
City of Kent
Project sponsor:
City of Kent
Budget:
TBD
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
Enhancement/
Planting
Planning/
Design
PAGE
125 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
RM
21
RM
20
LG-33
Green River Trail - Kent
Frager Rd Trail RiverbendGolf Course
RiverbendGolf Course
Green RiverTrail Site - Kent
CottonwoodGrove Park 53rd Pl S516
KENT
UNINCOR
PORATED
KING COUNTY
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
Public
Lands
N0200400 ft.Park Inc. Area
Boundary
Floodplain
Restoration
Wetland
Riparian
Acquisition
$
Monitoring &
Assessment
Enhancement/
Planting
Planning/
Design
Side channel
Scoping/
Reconnaissance
Backwater
Primary strategy
Protect, restore and enhance floodplain connectivity.
Benefits:
• Increased habitat connectivity
• Increased rearing habitat
• Water temperature reduction
Contribution to goals metrics:
• LG - O-channel habitat
• LG - Riparian forest
PROJECT DESCRIPTION:
Restore Midway Creek and floodplain wetland
complex by removing wetland fill and improving
fish passage to enhance connectivity between the
Midway Creek and the Green River. Project design
should maintain/enhance regional trail
connectivity.
Tier 1 Project: LG-33
Midway Creek Wetland Complex
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 19.6 - 21.1/
left bank
Banksidejurisdiction:
City of Kent
Project sponsor:
City of Kent
Budget:
TBD
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT: Gre e n R i v er
LG-34
Valley Floor Community ParkValley Floor Community Park
42nd Ave SRiverview Blvd SS 212th StOrillia Rd SKENT
KENT
TUKWILA
SEATAC
UNINCORPORATED
KING COUNTY
Green RiverK ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
Public
Lands
N0200400 ft.Park Inc. Area
Boundary
Floodplain
Restoration
Riparian
Monitoring &
Assessment
Enhancement/
Planting
Planning/
Design
Education
& Outreach
Tributary
Primary strategy
Protect, restore and enhance floodplain connectivity.
Benefits:
• Flood risk reduction
• Increased habitat connectivity
• Increased rearing habitat
Contribution to goals metrics:
• LG - O-channel habitat
• LG - Riparian forest
PROJECT DESCRIPTION:
Acquire properties, setback road and trail,
reconnect floodplain, and create o-channel
habitat to improve water quality and increase fish
access.
Tier 1 Project: LG-34
Johnson Creek Floodplain
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 17.2 - 17.8/
left bank
Banksidejurisdiction:
City of Kent
Project sponsor:
City of Kent
Budget:
TBD
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
PAGE
126 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
LG-34
Valley Floor Community ParkValley Floor Community Park
42nd Ave SRiverview Blvd SS 212th StOrillia Rd SKENT
KENT
TUKWILA
SEATAC
UNINCORPORATED
KING COUNTY
Green RiverK ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
Public
Lands
N0200400 ft.Park Inc. Area
Boundary
Floodplain
Restoration
Riparian
Monitoring &
Assessment
Enhancement/
Planting
Planning/
Design
Education
& Outreach
Tributary
Primary strategy
Protect, restore and enhance floodplain connectivity.
Benefits:
• Flood risk reduction
• Increased habitat connectivity
• Increased rearing habitat
Contribution to goals metrics:
• LG - O-channel habitat
• LG - Riparian forest
PROJECT DESCRIPTION:
Acquire properties, setback road and trail,
reconnect floodplain, and create o-channel
habitat to improve water quality and increase fish
access.
Tier 1 Project: LG-34
Johnson Creek Floodplain
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 17.2 - 17.8/
left bank
Banksidejurisdiction:
City of Kent
Project sponsor:
City of Kent
Budget:
TBD
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
PAGE
127 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
RM
14
LG-35
G
reen River
Interurban Trail - TukwilaGreen River Trail - TukwilaInterurbanTrail Site - Tukwila
InterurbanTrail Site - Tukwila
Minkler
Blvd Andover Park E181TUKWILA
RENTON
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
Public
Lands
N0200400 ft.Park Incorp. Area
Boundary
Floodplain
Restoration
Riparian
Acquisition
$
Planning/
Design
Side channel
Scoping/
Reconnaissance
Primary strategy
Protect, restore and enhance floodplain connectivity.
Benefits:
• Flood risk reduction
• Increased habitat connectivity
• Increased rearing habitat
Contribution to goals metrics:
• LG - O-channel habitat
PROJECT DESCRIPTION:
Relocate the City of Tukwila's stormwater pond;
clean and connect the existing pond to the river,
setback the levee to create up to 7 acres of o
channel habitat.
Tier 1 Project: LG-35
P-17 Pond Connection Reconnection
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 13.7- 13.9/
left bank
Banksidejurisdiction:
City of Tukwila
Project sponsor:
City of Tukwila
Budget:
$37,000,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: Google Earth
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
P-17Pond
PAGE
128 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
RM
28
LG-39
Gr
e
e
n
R
i
v
e
r
Green River Trail - Auburn
277th St Cor r i d o r T r a i l
North Green River ParkNorth Green River Park
Mary Olson Farm
Mary Olson Farm
Riversands ParkRiversands Park
Green River Trail SiteGreen River Trail Site
G
r
e
e
n
R
i
v
e
r
R
d
AUBURN
KENT
UNINCOR
PORATED
KING
COUNTY
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
N0200400 ft.Inc. Area
Boundary
Public
LandsPark
Floodplain
Restoration
Riparian
Primary strategy
Protect, restore and enhance floodplain connectivity.
Benefits:
• Flood risk reduction
• Increased habitat connectivity
• Increased rearing habitat
Contribution to goals metrics:
• LG - O-channel habitat
PROJECT DESCRIPTION:
Connect the Port of Seattle's existing wetland
mitigation site with the 100-year floodplain. Within
the ~78 acres of reconnected floodplain,
approximately 11 acres would be available as
regularly inundated o-channel rearing habitat for
Chinook salmon. The Port also owns an adjacent
34 acre site to the west which could support
restoration of additional wetland habitat and
further enhance floodplain connectivity. Project
Design will need to address future Green River Trail
alignment around this project area.
Tier 1 Project: LG-39
Port of Seattle Mitigation Site Floodplain Connection
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
27.9 - 28.2 / left bank
Jurisdiction:
City of Auburn
Project sponsor:
Port of Seattle
Budget:
TBD
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: Google Earth
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
WetlandBackwater
PAGE
129 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
G re e n River Trail -
K
e
ntFrager Rd
T
r
a
i
l
RM
22
LG-40Green Ri
v
e
r
Riverbend Golf Course
Lake Fenwick Park
Hogan ParkRussel
l
Rd
W Meeker
St
KENT
UNINCORPORATED
KING COUNTY
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
N0200400 ft.Inc. Area
Boundary
Public
Lands
Urban Growth
Area Line Bndy.Park
Restoration
Primary strategy
Protect, restore and enhance floodplain connectivity.
Benefits:
• Flood risk reduction
• Increased habitat connectivity
• Increased rearing habitat
Contribution to goals metrics:
• LG - Large woody debris
• LG - O-channel habitat
• LG - Riparian forest
PROJECT DESCRIPTION:
Create network of side channels to provide
rearing habitat and increase flood storage
capacity, add large wood to create habitat
complexity, cover and refuge, and lower peak
flood elevations during 100-year flood events.
Tier 1 Project: LG-40
Downey Side Channel Restoration
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 21.5 - 22/
left bank
Banksidejurisdiction:
City of Kent
Project sponsor:
City of Kent
Budget:
$6,800,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: Google Earth
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
Side channel
Monitoring &
Assessment
516
Gr
e
e
n
R
i
v
e
r
PAGE
130 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
PAGE
131 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 UpdateFrager Rd TrailRussell RdRussell Rd SRM
18
LG-42
Green RiverGreen River Natural Reso u r c e s A rea TrailsGreen River Trail - K e n t
Green River Natural Resources Area
Valley Floor Community Park
Van Dorens Landing Park
Green RiverTrail Site - Kent
S 216th StRiverview Blvd SS 212th St
KENT
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
N0200400 ft.Public
LandsPark Trail
Floodplain
Restoration
Edge Side channel
Monitoring &
Assessment
Enhancement/
Planting
Planning/
Design
Primary strategy
Protect, restore, and enhance floodplain connectivity.
Benefits:
• Flood risk reduction
• Increased habitat connectivity
• Increased rearing habitat
Contribution to goals metrics:
• LG - Large woody debris
• LG - O-channel habitat
• LG - Riparian forest
PROJECT DESCRIPTION:
Create o-channel habitat by grading and
reshaping the bank, widening the channel,
restoring channel complexity and meanders,
excavating low benches, installing large wood,
and planting native vegetation.
Tier 1 Project: LG-42
Lower Russell Road: Habitat Area A
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 17.9 - 18.3/
right bank
Banksidejurisdiction:
City of Kent
Project sponsor:
City of Kent
Budget:
TBD
Project Area Map: Ortho2019KCNAT aerial photo Site photo: Google Earth
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
PROJECT TYPE:
AGENDA ITEM #6. e)
PAGE
132 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Fr
a
g
e
r
R
d
T
r
a
i
l
LG-45
Green River
Green River Trail - Ke n t
Riverbend Golf Course
RussellRoad Park
Green River TrailSite - Kent
CottonwoodGrove Park
Russel
l
Rd53rd Pl SLakesi
d
e
B
l
v
d
W
W James St
W Meeker
St
KENT
KENT
RM
20
RM
21
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
Public
Lands
N0200400 ft.Park
Floodplain
Restoration
Wetland
Riparian
Edge
Enhancement/
Planting
Planning/
Design
Side channel
Backwater
Primary strategy
Protect, restore, and enhance floodplain connectivity.
Benefits:
• Flood risk reduction
• Increased habitat connectivity
• Increased rearing habitat
Contribution to goals metrics:
• LG - Large woody debris
• LG - O-channel habitat
• LG - Riparian forest
PROJECT DESCRIPTION:
Restore 36 acres by creating side channel and
backwater habitat on a largely undeveloped
shoreline in City of Kent.
Tier 1 Project: LG-45
Teufel Off Channel Habitat Restoration
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
20 - 20.8 /
left bank
Jurisdiction:
Kent
Project sponsor:
King County Flood
Control District
Budget:
$12,525,000 -
$33,975,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
Tributary
Upland
AGENDA ITEM #6. e)
PAGE
133 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Tier 2 Project: LG-1
Reddington Habitat Creation
PROJECT DESCRIPTION:
The previous Reddington Levee Setback project was
done with a focus on flood risk reduction benefits and
left two areas waterward of the levee that have room
for side channel and/or backwater type habitats. This
project would design and create additional habitat
integrated with the existing habitat features on site.
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
28.6 - 28.2 /
left bank
Jurisdiction:
King County
Project sponsor:
King County
Budget:
TBD
PROJECTTYPE:KEYHABITAT:
Backwater
Side Channel
Floodplain
Edge
Restoration
LG-1
Green River Trail - AuburnTrailsBrannan Park BrannanPark
MaryOlsonFarm
Issac EvansPark
NorthGreen RiverPark
RiverpointPark
Green River Rd SEGreen River RdAUBURN
Green RiverRM
29
LG-1
N0300600 ft150ParkPublic Lands
KCIT-DCE VC folder: 2010_10202w_LG-1.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdFloodplain
Wetland
EdgeRestoration
TributaryRiparian
LG-49
Green River Trail - KentHorsehead BendNatural Area
S 266th St Maple LnEast Valley Hwy SCentral Ave S86th Ave
S
KENT
Green RiverUNINCORPORATED
KING COUNTY
KCIT-DCE VC folder: 2010_10202w_LG-5.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdLG-5
Tier 2 Project: LG-5
Northeast Auburn Creek Rehabilitation
PROJECT DESCRIPTION:
Enhance floodplain and stream habitat by creating
o channel rearing and high flow refuge habitat for
juvenile salmon. Project will improve fish passage,
which is currently partially obstructed by a flapgate
at the mouth of the creek.
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
25.3 / left bank
Jurisdiction:
King County
Project sponsor:
King County
Budget:
$5,500,00
PROJECTTYPE:KEYHABITAT:
Park Public
Lands
Incorp. Area
Boundary
Urban GrowthBoundary N0300 ft
AGENDA ITEM #6. e)
PAGE
134 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
FloodplainEdge
Acquisition
$
Restoration
TributaryRiparian
LG-7
Mi
l
l
C
r
e
e
k
LakeFenwickPark
Private Rd
5
2
n
d
A
v
e
S
KENT
UNINCORPORATED
KING COUNTYMullen SloughKCIT-DCE VC folder: 2010_10202w_LG-7.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdN0300600 ft150
Tier 2 Project: LG-7
Mullen Slough
PROJECT DESCRIPTION:
This project would remeander and revegetate the
tributary, increasing quantity and quality of aquatic
habitat.
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
21.5 / left bank
(Mullen Slough
1 - 2)
Jurisdiction:
King County
Project sponsor:
King County
Budget:
$9,600,000
PROJECTTYPE:KEYHABITAT:
LG-7
Park Incorp. Area
Boundary
Urban GrowthBoundary
Floodplain
EdgeEnhancement/
Planting
Restoration
Scoping/
Reconnaissance
Riparian Frager Rd TrailFr
a
g
e
r
R
d
S
KCIT-DCE VC folder: 2010_10202w_LG-10.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdLG-10
Green Riv
e
r
Green River Trail
Site - Kent Trails
Valley FloorCommunity Park
ThreeFriendsFishingHole
59th Pl SSouthcenter PkwyRussell RdS 200th St
KENT
TUKWILA
RM
17
Green River T
r
a
i
l
-KentN0300600 ft150
LG-10
Tier 2 Project: LG-10
Boeing Levee Setback Habitat Rehabilitation
PROJECT DESCRIPTION:
Balance future habitat, flood protection and recreation
on the site. Explore opportunities to add alcove
habitat, excavate low benches and alcoves, install
large wood, and plant native riparian vegetation, while
maintaining/enhancing the recreational trail user
experience.
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
17 - 17.8 / right bank
Jurisdiction:
City of Kent
Project sponsor:
City of Kent
Budget:
TBD
PROJECTTYPE:KEYHABITAT:
Park Public
Lands
AGENDA ITEM #6. e)
PAGE
135 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Floodplain
EdgeEnhancement/
Planting
Restoration
Riparian
LG-12 BriscoePark
62nd Ave SSouthcenter PkwyS 190th St
S 1
8
4
t
h
P
l
TUKWILA
KENT
SEATAC
G r e e n R iver Trail -Kent
G re e n R i v e r
RM
16
KCIT-DCE VC folder: 2010_10202w_LG-12.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdN0300600 ft150
LG-12
Tier 2 Project: LG-12
Briscoe Park Off-channel Habitat
PROJECT DESCRIPTION:Create o-channel habitat at Briscoe Park by removing bank armor, excavating perched floodplain, installing large wood, and planting riparian vegetation. Project design needs to address potential impacts to recreational amenities at Briscoe Park.
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 15.6 - 16.1 / right bank
Bankside jurisdiction:
City of Kent
Project sponsor:
City of Kent
Budget:
TBD
PROJECTTYPE:KEYHABITAT:
5
Park Public
Lands
Incorp. Area
Boundary
Enhancement/
Planting Planning/
Design
Restoration Scoping/
Reconnaissance
Backwater
Floodplain
Edge
Riparian
Fort DentPark
TukwilaPark65th
Ave
S62nd Ave SS 151st St
In
te
ru
rban
Ave
S
South
c
e
n
t
e
r
Blvd
TUKWILA
RENTON
G reen R iv e r
G
r
e
e
n
Ri
ver Trail - TukwilaI
nt
er
urban TrailTukwilaRM
12
181405
KCIT-DCE VC folder: 2010_10202w_LG-17.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdN0300600 ft150
LG-17
Tier 2 Project: LG-17
Fort Dent Revetment Setback
PROJECT DESCRIPTION:Setback portions of the Fort Dent revetment to create shallow water habitat, riparian forest, and o-channel habitat.
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 11 - 11.8 /
right bank
Bankside
jurisdiction:
City of Tukwila
Project sponsor:
City of Tukwila
Budget:
$4,699,000
PROJECTTYPE:KEYHABITAT:
Park Public
Lands
Incorp. Area
Boundary
AGENDA ITEM #6. e)
PAGE
136 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Enhancement/
Planting
Acquisition
$
Planning/
Design
Restoration
Scoping/
Reconnaissance
Duwamish
Marsh
Duwamish
Mudflat
Backwater
Edge
Riparian
KCIT-DCE VC folder: 2010_10202w_LG-18.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdLG-18
Black Riv
e
rLake to Sound TrailGreen River Trail -
L
o
we
r
G
r
e
e
n
R
i
v
e
r
Trail - TukwilaFort DentPark
BlackRiverPumpStation
FosterGolf Links
BlackRiverForest
In
te
ru
rban
A
ve
SMo
n
s
t
e
r
R
d
SW68th
Ave
S
TUKWILA
RENTON
G
r
e
e
n
Ri
verDuwamish River
RM
11
LG-18
N0300600 ft150
Tier 2 Project: LG-18
Black River Marsh
PROJECT DESCRIPTION:Create an island at the confluence of the Black, Green, and Duwamish Rivers, and increase edge habitat, flood storage, and o-channel refuge. Revegetate the shoreline along the Black River up to the Black River Pump Station.
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 11 - 11.8 /
right bank
Bankside
jurisdiction:
City of Tukwila
Project sponsor:
City of Tukwila
Budget:
$4,699,000
PROJECTTYPE:KEYHABITAT:
Park Public
Lands
Incorp. Area
Boundary
Wetland
Monitoring &
Assessment
Acquisition
$
Planning/
Design
Restoration
Scoping/
Reconnaissance
Tributary
Edge Riparian
KCIT-DCE VC folder: 2010_10202w_LG-19.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdLG-19Springbook
CreekBlack River
SpringbrookTrailBlack River
Forest
Waterworks Gardens
SW 16th St
SW 7th St
SW Grad
y
W
a
y Oakesdale
Ave
SW
RENTON
TUKWILA
LG-19
IMAGE_Ortho2019KCNAT
405
N0300600 ft150
Tier 2 Project: LG-19
Lower Springbrook Reach Rehabilitation
PROJECT DESCRIPTION:Improve the aquatic and riparian habitat for Lower Springbrook Creek with riparian plantings, large woody debris, pool construction, channel branch excavation, and potential two-stage channel.
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 11 /
right bank
Bankside
jurisdiction:
City of Renton
Project sponsor:
City of Renton
Budget:
$20,000,000
PROJECTTYPE:KEYHABITAT:
Park Public Lands
AGENDA ITEM #6. e)
PAGE
137 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Side Channel
FloodplainEnhancement/
PlantingAcquisition
$
Planning/
Design
Restoration Riparian
KCIT-DCE VC folder: 2010_10202w_LG-23.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdLG-27
104th Avenue SE
Park
Scootie
Brown
ParkM St NER St NE14th St NE Ri
ver
vi
ew Dr NE104th Ave SE8th St NE Lea Hill Rd SEGreen River
AUBURN
RM
31
LG-23
N0300600 ft150
Tier 2 Project: LG-23
8th Street Bridge to 104th Ave Park Off-Channel Habitat
PROJECT DESCRIPTION:Acquire private properties and restore o-channel and riparian habitat, including up to 0.25 miles of potential side channel.
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 30.4 - 31.1 /
right bank
Bankside
jurisdiction:
City of Auburn
Project sponsor:
City of Auburn
Budget:
TBD
PROJECTTYPE:KEYHABITAT:
Park Public Lands
FloodplainEnhancement/
Planting
Acquisition
$
Planning/
Design
Restoration
Tributary
Riparian
KCIT-DCE VC folder: 2010_10202w_LG-26.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdGreen
R
ive
r
T
ra
i
l
-
Aubu
rn
Issac Evans
Park
Green River Trail Site
Dykstra
Park State Park Auburn Narrows
104th Avenue SE Park
Green
R
i
v
e
r
R
d
S
E
22nd St NE
Rive
rv
iew
D
r
NE104th Ave SELea Hill Rd
S
ESE 304th WayG re en River
AUBURN
RM
30
LG-26
IMAGE_Ortho2019KCNAT
N0300600 ft150
Tier 2 Project: LG-26
Valentine Revetment Setback
PROJECT DESCRIPTION:Setback the existing revetment and relocate Green River Road to the north, away from the river. Realign the unnamed fish stream into the historic channel and install a fish friendly culvert.
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 30.1 - 29.8 /
right bank
Bankside
jurisdiction:
City of Auburn
Project sponsor:
City of Auburn
Budget:
TBD
PROJECTTYPE:KEYHABITAT:
Park Public Lands
AGENDA ITEM #6. e)
PAGE
138 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
FloodplainAcquisition
$
Planning/
Design
Restoration
Riparian
KCIT-DCE VC folder: 2010_10202w_LG-27.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdState
Park
Auburn
Narrows
Scootie
Brown
Park
Lea Hill
Tennis Courts
R St NE105
th
P
l
SE107th Pl SE8th St NE 104th Ave SELea Hill Rd SEE Main St
SE 320th St
R St SEGreen
R
i
v
e
r
AUBURN
RM
31
LG-27
IMAGE_Ortho2019KCNAT
Tier 2 Project: LG-27
8th Street Acquisitions
PROJECT DESCRIPTION:Acquire properties and restore o-channel and riparian habitat.
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 31.1 - 31.4 /
right bank
Bankside
jurisdiction:
City of Auburn
Project sponsor:
City of Auburn
Budget:
TBD
PROJECTTYPE:KEYHABITAT:
Park Public
Lands
Incorp. Area
Boundary
Urban GrowthBoundary N0300 ft
Floodplain
EdgeAcquisition
$
Restoration
Riparian
KCIT-DCE VC folder: 2010_10202w_LG-30.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdFrager
R
d
T
r
a
i
l
Mill CreekInterurban Trail - KentGreen River T
r
a
i
l
Kent
WillisStreetGreenbelt
Kiwanis
Park #4
74th Ave SS 259th St68th Ave SWashingtonAve SG
re
e
n River
KENT
UNINCORPORATED
KING COUNTY
167
181
518
RM
23
RM
24
LG-30
IMAGE_Ortho2019KCNAT
Tier 2 Project: LG-30
Mill Creek to Washington Ave Bridge Acquisitions and Restoration
PROJECT DESCRIPTION:Acquire left bank properties from Mill Creek (Auburn) to Washington Ave. S. bridge and install native plantings.
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 23.2- 23.7 /
left bank
Bankside
jurisdiction:
City of Kent
Project sponsor:
City of Kent
Budget:
TBD
PROJECTTYPE:KEYHABITAT:
Park Public
Lands
Incorp. Area
Boundary
Urban GrowthBoundary N0300 ft
AGENDA ITEM #6. e)
PAGE
139 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
FloodplainEnhancement/
Planting
Planning/
Design
Restoration
KCIT-DCE VC folder: 2010_10202w_LG-31.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdFrager Rd TrailKent Puget Power Trail
Riverview Blvd SVeterans Dr
S 22
8
t
h
S
t
SR 5
16 Frager Rd SKENT
KENT
RM
19
Green River
T
r
a
i
l
-
KentG
reen River
LG-31
IMAGE_Ortho2019KCNAT
Tier 2 Project: LG-31
South of Veterans Drive Floodplain Reconnection
PROJECT DESCRIPTION:Create o-channel habitat in small triangle of flat land behind Frager Road.
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 19.4 - 19.3 /
left bank
Bankside
jurisdiction:
City of Kent
Project sponsor:
City of Kent
Budget:
TBD
PROJECTTYPE:KEYHABITAT:
N0300600 ft150ParkPublic
Lands
Incorp. Area
Boundary
Floodplain
Edge
Planning/
Design
Scoping/
Reconnaissance
Riparian
KCIT-DCE VC folder: 2010_10202w_LG-32.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdLG-51
LG-30
Mill CreekInterurban Trail - KentGreen River Trail - KentGr
een River Trail - KentFoster
Park 3rd Ave SS 259th St74th Ave S79th Ave S72nd Ave SS 262nd St68th Ave SKENT
UNINCORPORATEDKING COUNTY
Gre
e
n River
RM
24
LG-32
167
IMAGE_Ortho2019KCNAT
Tier 2 Project: LG-32
Foster Park Floodplain Reconnection
PROJECT DESCRIPTION:Restore o-channel habitat within the park, while balancing flood protection and recreation.
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 23.9 - 24 /
right bank
Bankside
jurisdiction:
City of Kent
Project sponsor:
City of Kent
Budget:
TBD
PROJECTTYPE:KEYHABITAT:
N0300600 ft150ParkPublic
Lands
Incorp. Area
Boundary
AGENDA ITEM #6. e)
PAGE
140 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Backwater
Floodplain
Planning/
Design
Scoping/
Reconnaissance
Wetland
Riparian
LG-37Interurban Trail - TukwilaBicentennial
ParkAndover Park EStrander Blvd
SW 27th St
TUKWILA RENTON
Green RiverRM
13
181
LG-37
IMAGE_Ortho2019KCNAT
Tier 2 Project: LG-37
Strander Boulevard Off-Channel Habitat Creation
PROJECT DESCRIPTION:This project would connect an isolated wetland area in between two railroad tracks with the river creating floodplain connection and use for salmonid rearing and refugia.
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 13.1 / right bank
Bankside
jurisdiction:
City of Tukwila
Project sponsor:
City of Tukwila
Budget:
$10,000,000
PROJECTTYPE:KEYHABITAT:
N0300600 ft150ParkPublic
Lands
Incorp. Area
Boundary
KCIT-DCE VC folder: 2010_10202w_LG-37.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdFloodplain
Acquisition
$
Restoration
Tributary
Wetland
Riparian
Mill CreekInterurban Trail - AuburnM St NW29th St NW
Ron Crockett Dr NWWest Valley Hwy NAUBURN
167
LG-46
IMAGE_Ortho2019KCNAT
Tier 2 Project: LG-46
Mill Creek Protection and Restoration Near Emerald Downs
PROJECT DESCRIPTION:Acquire property and restore creek meander of the existing channel, revegetate the riparian zone and associated wetland habitat, and increase channel capacity to reduce existing flood risks.
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 23.7 / left bank
(Mill Creek
RM 3.0 - 4.4)
Bankside
jurisdiction:
King County
Project sponsor:
King County
Budget:
TBD
PROJECTTYPE:KEYHABITAT:
Park Public Lands N0300600 ft150
KCIT-DCE VC folder: 2010_10202w_LG-46.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdAGENDA ITEM #6. e)
PAGE
141 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Floodplain
EdgeEnhancement/Planting
Acquisition
$
Planning/Design
Restoration
Upland
Riparian Interurban Trail - KentGreen River T rail - KentFoster
ParkSR 167SR 167S 259th St 1st Ave S3rd Ave S74th Ave S79th Ave S72nd Ave SS 262nd St
G re e n R i v e r
RM
24
KENT
UNINCORPORATEDKING COUNTY
LG-51
IMAGE_Ortho2019KCNAT
Tier 2 Project: LG-51Milwaukee 2 Improvements
PROJECT DESCRIPTION:Excavate a backwater channel, remove all invasive vegetation and hardscape, and replace with native plants and trees. Place large wood within the project area. The project increases rearing and refuge habitat for salmon. The project must balance flood protection and recreation goals, including regional trail improvements.
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
24.0 - 24.3 /
left bank
Jurisdiction:
City of Kent
Project sponsor:
City of Kent
Budget:
TBD
PROJECT TYPE:KEY HABITAT:KCIT-DCE VC folder: 2010_10202w_LG-51.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdN0300600 ft150ParkPublic
Lands
Incorp. Area
Boundary
RM
25
RM
26
Horsehead Bend NaturalArea
Green River
Trail Site
Interurban
Trail Site -
Kent
S 259th St
S 266th St Maple Ln79th Ave S1st Ave S3rd Ave S80th Ave SS 262nd StS 261st StCentral Ave SEast Valley Hwy SGreen RiverInterurban TrailGreen River Trail
Green River TrailLG-49
Tier 2 Project: LG-49Horseshoe Bend Levee Riparian Habitat Improvements
PROJECT DESCRIPTION:Setback levee segments, and install large wood structures along the riverbank to provide salmon habitat.
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
24.25 - 26.25 /
right bank
Jurisdiction:
City of Kent
Project sponsor:
City of Kent
Budget:
TBD
PROJECTTYPE:KEYHABITAT:
Park Public
Lands
Incorp. Area
Boundary
Urban GrowthBoundary
KCIT-DCE VC folder: 2010_10202w_LG-49.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdUNINCORPORATEDKING COUNTY
KENT
N0400 ft
Floodplain
EdgeEnhancement/Planting
Planning/Design
Restoration
Scoping/
Reconnaissance
Riparian
AGENDA ITEM #6. e)
PAGE
142 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
EdgeRestoration
Riparian
IMAGE_Ortho2019KCNATFrager Rd TrailLG-55 Green River Trail - KentGreen River
Natural Resources
Area
Valley Floor
Community Park
Van Dorens
Landing
Park
S 216th St Riverview Blvd SS 212th St
S 216th St
Frager Rd SGreen RiverKENT
RM
18
LG-55
Tier 2 Project: LG-55Frager Road Levee Setback
PROJECT DESCRIPTION:Reconstruct the toe, slope and levee crest to a stable configuration with a fully bioengineered solution, including a vegetated bench.
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 17.25 - 18.75 /
left bank
Bankside jurisdiction:
City of Kent
Project sponsor:
City of Kent
Budget:
TBD
PROJECTTYPE:KEYHABITAT:KCIT-DCE VC folder: 2010_10202w_LG-55.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdPark Public Lands N0300600 ft150
AGENDA ITEM #6. e)
PAGE
143 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
PAGE
144
PAGE
145 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Table 5Lower Green River Subwatershed Tier 3 Projects
Proj#Project Name Project Type Description Sponsor
River mile and Bank side/
Nearshore jurisdiction Primary Strategy (pick 1)Jurisdiction Goal Alignment
LG-2 Olson Creek
Restoration
Restoration Improve quality of aquatic habitat through setting back the banks, adding large
wood to channel, and expanding riparian vegetation along the creek. Increase
amount and quality of flood refuge habitat by reconnecting southern grassy area
at lower flows and restoring as a wetland. This project will build off of a KCDOT
project to fix the fish passage barrier at the mouth in 2020.
King County RM 28.4 / right bank Protect, restore and enhance
instream flows and cold water
refugia
City of Auburn LG - Large woody debris
LG - Off-channel habitat
LG - Riparian Forest
LG-15 Nelsen Side Channel • Acquisition
• Enhancement/Planting
• Planning/Design
• Restoration
This project reconnects a segment of the former river channel that was discon-
nected with construction of I-405 and rerouting of the river.
City of Tukwila RM 12.5 /right bank Protect, restore, and enhance
channel complexity and edge
habitat
City of Tukwila LG - Large woody debris
LG - Off-channel habitat
LG - Riparian Forest
LG-16 Gilliam Creek
Fish Passage
and Riparian
Rehabilitation
• Enhancement/Planting
• Planning/Design
• Restoration
This project will replace a large flapgate that inhibits salmonid usage of the
Gilliam Creek tributary, and restore nearly 300 lineal feet of the lowest stretch of
Gilliam Creek.
City of Tukwila RM 12.5 / left bank Restore and improve fish passage City of Tukwila LG - Off-channel habitat
LG-20 Riverview Plaza
Off-channel Habitat
Creation
• Enhancement/Planting
• Planning/Design
• Restoration
This City-owned parcel once had a modest picnic area for viewing, but those
have since been removed. There are several, large cottonwood trees in this low
bank area with opportunities to create shallow water habitat while preserving
most or all of the trees. It is waterward of the levee and Green River Trail.
City of Tukwila RM 12.7 / left bank Protect, restore, and enhance
channel complexity and edge
habitat
City of Tukwila LG - Large woody debris
LG - Off-channel habitat
LG - Riparian Forest
LG-21 Best Western
Revetment Setback
• Acquisition
• Restoration
This project would setback this revetment to the extent possible. There is a hotel
80’ landward; setting it back somewhat could create some edge habitat. Should
look for opportunities in the event of property redevelopment.
City of Tukwila RM 12.7 / right bank Protect, restore and enhance
floodplain connectivity
City of Tukwila 1. Off-channel habitat
2. Riparian
3. Large Woody Debris
Forest
LG-38 Fenster Slough
Wetland Connection
• Enhancement/Planting
• Planning/Design
• Restoration
Reconnect approximately 1/2 acre of wetland area to the Green River that is
currently cut off by the Fenster II Levee. The area has the potential to provide
backwater/off-channel and riparian habitat functions.
City of Auburn RM 40 / left bank Protect, restore and enhance
floodplain connectivity
City of Auburn LG - Off-channel habitat
LG-43 Panther Creek at
East Valley Road
Improvement
Project
• Acquisition
• Enhancement/Planting
• Planning/Design
• Restoration
The project is intended to provide daylighting and habitat improvements of Pan-
ther Creek from river mile 0.5 to 0.0 and the adjacent East Valley wetlands. This
includes improving hydrologic and hydraulic function through repairing and/or
replacing the existing culverts at East Valley Road and Lind Ave SW.
City of Renton RM 1 1 / right bank Restore and improve fish passage City of Renton LG - Off-channel habitat
LG-52 Panther Creek at
Talbot Road South
Fish Passage
Improvement
• Acquisition
• Other
• Planning/Design
The project intends to provide fish passage and improved conveyance through a
culvert replacement along Panther Creek at the Talbot Road South culvert.
City of Renton Surface
Water Utility
RM 11 / right bank Restore and improve fish passage City of Renton LG - Off-channel habitat
LG-53 Signature
Pointe Levee
Improvements
• Enhancement/Planting
• Planning/Design
• Restoration
• Acquisition
Setback levee segments and slope. Install large wood and native riparian plants.
Address potential for recreational impacts of moving the trail further from the
river and closer to residential units.
City of Kent RM 23.15 - 21.75 / left
bank
Protect, restore, and enhance
channel complexity and edge
habitat
City of Kent LG - Bank Armor
LG - Large woody debris
LG - Off-channel habitat
LG-54 SR 516 to S 231st
Way Levee
• Planning
• Scoping/
• Reconnaissance
Balance habitat, flood protection, and recreation. Set back existing levee to allow
for more flood storage and habitat improvements. These potential improvements
include flatter riverbank side slopes, log jams along the river, and increased
riparian plantings.
City of Kent RM 21.75 - 19.2 5/ left
bank
Protect, restore and enhance
floodplain connectivity
City of Kent LG - Bank Armor
LG - Off-channel habitat
LG - Riparian Forest
LG-56 Kent Airport Levee
Setback
• Planning/Design
• Restoration
• Acquisition
Setback the levee, incorporate current stormwater pond into riparian buffer, and
install native plants.
City of Kent RM 24.1 - 23. 8/ left bank Protect, restore, and enhance
channel complexity and edge
habitat
City of Kent LG - Riparian Forest
LG-58 Briscoe Levee
Riparian Habitat
Improvements
• Enhancement/Planting
• Planning/Design
• Restoration
Re-grade side slopes that are overly steep, remove non-native invasive plant
species, and plant new native vegetation in areas that have not already been
improved. The project also includes installation of large wood structures along
the river’s edge throughout the length of the levee reach where feasible.
City of Kent RM 17.0 - 16.1 / right bank Protect, restore, and enhance
channel complexity and edge
habitat
City of Kent LG - Off-Channel Habitat AGENDA ITEM #6. e)
PAGE
146 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Tier 2 (Score 7-18) 5 projects
Middle Green River Subwatershed 14
projects
Tier 1 (Score 18+) 8 projects
MG-3 .......Flaming Geyser Floodplain Reconnection
MG-9 ......Lones Levee Restoration
MG-11 ......Turley Levee Setback
MG-13 .....Hamakami Levee Setback
MG-19 .....Lower Soos Creek Channel Restoration
MG-21 .....Whitney Bridge Reach Acquisition and Restoration
MG-24 ....Meyer/Imhof Levee Setback
MG-26 ....Newuakum Creek Tributary Acquisition and Restoration
Tier 3 (Score <7) 1 project
MG-6 ......Middle Newaukum Creek Riparian Planting and Large Woody Debris Placement
MG-10 .....Burns Creek Restoration
MG-16 .....Ray Creek Restoration
MG-20 ....Auburn Narrows Floodplain Restoration
MG-22 ....Kanaskat Reach Restoration
MG-25 ....Little Soos Restoration - Wingfield Neighborhood
AGENDA ITEM #6. e)
PAGE
147 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
MG-3MG-3MG-9MG-9
MG-6MG-6
MG-26MG-26
MG-24MG-24MG-13MG-13
MG-19MG-19 MG-23MG-23
MG-21MG-21
MG-10MG-10
MG-11MG-11
MG-20MG-20
MG-16MG-16
MG-25
Green RiverBig
Soos
Cr
.Big
Soos
Cr
.
Coal
C
r
.
Coal
C
r
.Jenkins Cr.Jenkins Cr.Deep Cr.Deep Cr.
Bear Cr.Bear Cr.
Ravensdale Cr.
Big S o o s Cr.Big S o o s Cr.Newauku
m Cr.
Newauku
m Cr.
18
Lake
Sawyer
Lake
Meridian
ENUMCLAWENUMCLAW
COVINGTONCOVINGTON
AUBURNAUBURN
KENTKENT
KENTKENT
KENTKENT
MAPLE
VALLEY
MAPLE
VALLEY
BLACK
DIAMOND
BLACK
DIAMOND
Tacoma HeadworksDiversion Dam
Lake
Youngs
River mile
Project location and
name
River/creek
Major road
Urban Growth Area
line
Middle Green River
Subwatershed
boundary
WRIA 9 boundary
Public lands
Incorporated area
Open water
1
MG-1
Figure __
Middle Green River
Subwatershed Projects
0 1 2 4 Miles
N
Note:The use of the information in this map is subject to the terms and conditions found at: www.kingcounty.gov/services/gis/Maps/terms-of-use.aspx. Your access and use is conditioned on your acceptance of these terms and conditions.
KCIT-DCE File: 2011_10202L_W9SHP_ProjMap_MGR.ai LPRE
GIS File:Q:\20009\WRIA9_Watershed.mxd KLINKAT
Figure 29
Middle Green River
Subwatershed Projects
AGENDA ITEM #6. e)
PAGE
148 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
RM
43
MG-3
Flaming Geyser Park
Flaming Geyser State Park
Black DiamondOpen Space
SE Green Valley Rd Green Riv e r
BLACK DIAMOND
UNINCORPORATED
KING COUNTY
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
N0200400 ft.Inc. Area
BoundaryPublic
Lands
Urban Growth
Area Line Bndy.Park
Restoration
Primary strategy
Protect, restore and enhance floodplain connectivity.
Benefits:
• Increased habitat connectivity
• Water temperature reduction
Contribution to goals metrics:
• MG - Bank armor
• MG - Floodplain connectivity/lateral channel migration
• MG - Large woody debris
• MG - Riparian forest
PROJECT DESCRIPTION:
Remove levee, relocate gravel in the levee
under-structure into the river channel, place large
wood in river channel and associated wetland,
and extensively the revegetate riparian zone
throughout state park.
Tier 1 Project: MG-3
Flaming Geyser Floodplain Reconnection
PROJECT FACTS
Subwatershed:
Middle Green (MG)
River mile:
RM 42-44/both banks
Banksidejurisdiction:
King County
Project sponsor:
King County
Budget:
$6,000,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: Google Earth
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
Side channel
Planning/
Design
Tributary
AGENDA ITEM #6. e)
PAGE
149 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
MG-9
G reen R i v e r N a t u ra lA r e a T r a i l s
Green River
Natural Area
SE Green Valley Rd.
Green Rive
r
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
N0200400 ft.Public
LandsPark
Restoration
Wetland
RiparianBackwater
Primary strategy
Protect, restore and enhance floodplain connectivity.
Benefits:
• Increased habitat connectivity
• Increased rearing habitat
• Water temperature reduction
Contribution to goals metrics:
• MG - Bank armor
• MG - Floodplain connectivity/lateral channel migration
• MG - Large woody debris
• MG - Riparian forest
PROJECT DESCRIPTION:
Remove existing levee, install setback feature to
protect agricultural land, place large wood in river
channel and remnant river channel, and
reintroduce gravel from remnant levee into river
channel.
Tier 1 Project: MG-9
Lones Levee Restoration
PROJECT FACTS
Subwatershed:
Middle Green (MG)
River mile:
RM 38/right bank
Banksidejurisdiction:
King County
Project sponsor:
King County
Budget:
$5,500,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: Google Earth
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
Side channel
Tributary
AGENDA ITEM #6. e)
RM
37
MG-11
Green River Natural Area
SE
G
r
e
e
n
V
a
l
l
e
y
R
d
Green RiverK ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
N0200400 ft.Public
LandsPark
Restoration
Floodplain
Acquisition
$
Wetland
RiparianBackwater
Primary strategy
Protect, restore, and enhance floodplain connectivity.
Benefits:
• Increased habitat connectivity
• Increased rearing habitat
• Water temperature reduction
Contribution to goals metrics:
• MG - Bank armor
• MG - Floodplain connectivity/lateral channel migration
• MG - Large woody debris
• MG - Riparian forest
PROJECT DESCRIPTION:
Acquire land, remove existing levee, setback new
revetment away from river channel, and increase
complexity with large wood in river channel and
associated wetland.
Tier 1 Project: MG-11
Turley Levee Setback
PROJECT FACTS
Subwatershed:
Middle Green (MG)
River mile:
RM 37 / left and right
bank
Banksidejurisdiction:
King County
Project sponsor:
King County
Budget:
$6,000,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: Google Earth
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
Side channel Tributary
PAGE
150 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
MG-13
Green RiverGreen RiverNatural Area
SE Green Valley Rd
AUBURN
UNINCORPORATED
KING COUNTY
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
N0200400 ft.Inc. Area
BoundaryPublic
Lands
Urban Growth
Area Line Bndy.Park
RestorationAcquisition
$
Wetland
RiparianBackwater
Primary strategy
Protect, restore, and enhance floodplain connectivity.
Benefits:
• Increased habitat connectivity
• Increased rearing habitat
• Water temperature reduction
Contribution to goals metrics:
• MG - Bank armor
• MG - Floodplain connectivity/lateral channel migration
• MG - Large woody debris
• MG - Riparian forest
PROJECT DESCRIPTION:
Acquire land, remove levee, relocate gravel in the
levee under-structure into the river channel,
construct revetment away from river, and place
large wood in river channel and associated
wetland.
Tier 1 Project: MG-13
Hamakami Levee Setback
PROJECT FACTS
Subwatershed:
Middle Green (MG)
River mile:
RM 35/right bank
Bankside Jurisdiction:
King County
Project sponsor:
King County
Budget:
$6,000,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: Google Earth
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
Side channel
Tributary
AGENDA ITEM #6. e)
PAGE
151 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
MG-13
Green RiverGreen RiverNatural Area
SE Green Valley Rd
AUBURN
UNINCORPORATED
KING COUNTY
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
N0200400 ft.Inc. Area
BoundaryPublic
Lands
Urban Growth
Area Line Bndy.Park
RestorationAcquisition
$
Wetland
RiparianBackwater
Primary strategy
Protect, restore, and enhance floodplain connectivity.
Benefits:
• Increased habitat connectivity
• Increased rearing habitat
• Water temperature reduction
Contribution to goals metrics:
• MG - Bank armor
• MG - Floodplain connectivity/lateral channel migration
• MG - Large woody debris
• MG - Riparian forest
PROJECT DESCRIPTION:
Acquire land, remove levee, relocate gravel in the
levee under-structure into the river channel,
construct revetment away from river, and place
large wood in river channel and associated
wetland.
Tier 1 Project: MG-13
Hamakami Levee Setback
PROJECT FACTS
Subwatershed:
Middle Green (MG)
River mile:
RM 35/right bank
Bankside Jurisdiction:
King County
Project sponsor:
King County
Budget:
$6,000,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: Google Earth
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
Side channel
Tributary
AGENDA ITEM #6. e)
PAGE
152 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
MG-19
Hatchery Natural Area
Porter Levee Natural AreaSE Auburn Black Diamond RdSR 1818
Green RiverState Salmon Hatchery
Big Soos Cr
G
re
e
n
R
i
v
e
r
AUBURN
UNINCORPORATED
KING COUNTY
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
N0200400 ft.Inc. Area
Boundary
Public
Lands
Urban Growth
Area Line Bndy.Park
RestorationAcquisition
$
Wetland
Riparian
Primary strategy
Protect, restore, and enhance floodplain connectivity.
Benefits:
• Water temperature reduction
Contribution to goals metrics:
• MG - Large woody debris
• MG - Riparian forest
PROJECT DESCRIPTION:
Restore habitat and increased water quality with
placement of large trees in streams and
associated wetlands, and plant native trees and
shrubs along riparian edge.
Tier 1 Project: MG-19
Lower Soos Creek Channel Restoration
PROJECT FACTS
Subwatershed:
Middle Green (MG)
River mile:
RM 33.3/right bank
Banksidejurisdiction:
King County
Project sponsor:
King County
Budget:
$1,500,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: Google Earth
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
Side channel
Tributary
AGENDA ITEM #6. e)
PAGE
153 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
RM
41
MG-21
Green River
Newaukum C
r
.
Green RiverNatural Area
WhitneyBridge Park
Lower NewaukumCreek Natural Area
SE
G
r
e
e
n
V
a
l
l
e
y
R
d
21
2
t
h
A
v
e
S
E
21
2
t
h
A
v
e
S
E212th Way SE
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
N0200400 ft.Park
Restoration
Floodplain
Acquisition
$
Riparian
Primary strategy
Protect, restore, and enhance floodplain connectivity.
Benefits:
• Habitat preservation
• Increased habitat connectivity
• Increased rearing habitat
Contribution to goals metrics:
• MG - Floodplain connectivity/lateral channel migration
• MG - Large woody debris
• MG - Riparian forest
PROJECT DESCRIPTION:
Acquire approximately 40 acres, and install
several hundred pieces are large wood on ~3,500
lineal feet of river.
Tier 1 Project: MG-21
Whitney Bridge Reach Acquisition and Restoration
PROJECT FACTS
Subwatershed:
Middle Green (MG)
River mile:
41 / left and right bank
Jurisdiction:
King County
Project sponsor:
King County
Budget:
TBD
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: Google Earth
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
AGENDA ITEM #6. e)
PAGE
154 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
RM
41
MG-24
Green River
Newaukum C
r
.
Green RiverNatural Area
WhitneyBridge Park
Lower NewaukumCreek Natural Area
SE
G
r
e
e
n
V
a
l
l
e
y
R
d
21
2
t
h
A
v
e
S
E
2
1
2
t
h
A
v
e
S
E212th Way SE
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
N0 200 400 ft.Park
Restoration
Floodplain
Acquisition
$
Wetland
Riparian
Primary strategy
Protect, restore, and enhance floodplain connectivity.
Benefits:
• Habitat preservation
• Increased habitat connectivity
• Increased rearing habitat
Contribution to goals metrics:
• MG - Bank armor
• MG - Floodplain connectivity/lateral channel migration
• MG - Large woody debris
• MG - Riparian forest
PROJECT DESCRIPTION:
Acquire land, remove levee, construct set-back
structure away from the River, add wood to
floodway, and revegetate with native plants.
Tier 1 Project: MG-24
Meyer/Imhof Levee Setback
PROJECT FACTS
Subwatershed:
Middle Green (MG)
River mile:
40.5 - 41.5 /
right bank
Jurisdiction:
King County
Project sponsor:
King County
Budget:
$1,500,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: Google Earth
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
MG-26
Newaukum Cr.
Foothills Trail Site
284thAveSEVeazie-CumberlandRdSEK ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
N0 200 400 ft.
Public
Lands Park
RestorationAcquisition
$
Wetland
Riparian
Tributary
Primary strategy
Protect, restore, and enhance channel complexity and
edge habitat.
Benefits:
• Habitat preservation
• Increased rearing habitat
• Water temperature reduction
Contribution to goals metrics:
• MG - Large woody debris
• MG - Riparian forest
PROJECT DESCRIPTION:
Restore habitat and improve water quality with
placement of large wood in the stream channel
and associated wetlands, revegetating the
riparian area.
Tier 1 Project: MG-26
Newuakum Creek Tributary Acquisition
PROJECT FACTS
Subwatershed:
Middle Green (MG)
River mile:
RM 40.4/left bank
Banksidejurisdiction:
King County
Project sponsor:
King County
Budget:
$3,500,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
Side channel
AGENDA ITEM #6. e)
PAGE
155 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
MG-26
Newaukum Cr.
Foothills Trail Site
284th Ave SEVeazie-Cumberland Rd SEK ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
N0200400 ft.Public
Lands Park
RestorationAcquisition
$
Wetland
Riparian
Tributary
Primary strategy
Protect, restore, and enhance channel complexity and
edge habitat.
Benefits:
• Habitat preservation
• Increased rearing habitat
• Water temperature reduction
Contribution to goals metrics:
• MG - Large woody debris
• MG - Riparian forest
PROJECT DESCRIPTION:
Restore habitat and improve water quality with
placement of large wood in the stream channel
and associated wetlands, revegetating the
riparian area.
Tier 1 Project: MG-26
Newuakum Creek Tributary Acquisition
PROJECT FACTS
Subwatershed:
Middle Green (MG)
River mile:
RM 40.4/left bank
Banksidejurisdiction:
King County
Project sponsor:
King County
Budget:
$3,500,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
Side channel
AGENDA ITEM #6. e)
Acquisition
$
Restoration Side Channel
Wetland
Tributary
Riparian Newau k u m CreekSE 400th St226th Ave SESE 392nd St
224th Ave SEMG-6
IMAGE_Ortho2019KCNAT
Tier 2 Project: MG-6
Middle Newaukum Creek Riparian Planting and Large Woody Debris Placement
PROJECT DESCRIPTION:
Place large wood in the stream channel between
RM 6 - 10 and remove hardened streambanks.
PROJECT FACTS
Subwatershed:
Middle Green (MG)
River mile:
RM 40 / left bank
Bankside jurisdiction:
King County
Project sponsor:
King County
Budget:
$2,500,000
PROJECTTYPE:KEYHABITAT:KCIT-DCE VC folder: 2010_10202w_MG-6.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdN0300600 ft150
FloodplainAcquisition
$
Restoration WetlandTributary
Riparian
MG-10
Green River
Natural AreaSE Green Valley RdGreen R ive rBurns CreekMG-10
Tier 2 Project: MG-10Burns Creek Restoration
PROJECT DESCRIPTION:Restore lower two miles of Burns Creek by acquiring several parcels or portions of parcels, place large trees with rootwads attached in streams and associated wetlands, plant native trees and shrubs to significantly improve fish and wildlife habitat, wetlands, and water quality in an area which is very important for over-wintering salmon.
PROJECT FACTS
Subwatershed:
Middle Green (MG)
River mile:
RM 33 / right bank
Bankside
jurisdiction:
King County
Project sponsor:
King County
Budget:
$1,500,000
PROJECTTYPE:KEYHABITAT:KCIT-DCE VC folder: 2010_10202w_MG-10.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdPark Public Lands N0300600 ft150
PAGE
156 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
PAGE
157 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
FloodplainAcquisition
$
Restoration WetlandTributary
Riparian
MG-16
Neely Bridge
Natural Area
SE Green Valley R
dGr
e
e
n
R
i
v
e
r
RM
35AUBURN
UNINCORPORATEDKING COUNTY
MG-16
IMAGE_Ortho2019KCNAT
Tier 2 Project: MG-16Ray Creek Restoration
PROJECT DESCRIPTION:Acquire several conservation easements of at least 100’ buers, place large wood in stream, and plant native trees and shrubs in riparian buer. Build fencing for livestock exclusion to immediately improve of fish and wildlife habitat, wetlands, water quality in a degraded area.
PROJECT FACTS
Subwatershed:
Middle Green (MG)
Bankside
jurisdiction:
King County
Project sponsor:
King County
Budget:
$1,500,000
PROJECTTYPE:KEYHABITAT:
Park Public
Lands
Incorp. Area
Boundary
Urban GrowthBoundary N0300 ft
KCIT-DCE VC folder: 2010_10202w_MG-16.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdFloodplainAcquisition
$
Restoration Wetland
Riparian
Gre
e
n
R
i
v
e
r
Auburn Narrows
Natural Area
State Park
Auburn
Narrows
SE Auburn Black Diamond Rd
SE Green Valley R
d
18
MG-20
RM
33
AUBURN
AUBURN
UNINCORPORATEDKING COUNTY
IMAGE_Ortho2019KCNAT
Tier 2 Project: MG-20Auburn Narrows Floodplain Restoration
PROJECT DESCRIPTION:Remove gravel road in floodway, expand notch of previously-constructed side channel, add large wood, and plant native vegetation.
PROJECT FACTS
Subwatershed:
Middle Green (MG)
River mile:
RM 33 / left bank
Bankside
jurisdiction:
King County
Project sponsor:
King County
Budget:
$350,000
PROJECTTYPE:KEYHABITAT:
Park Public
Lands
Incorp. Area
Boundary
Urban GrowthBoundary N0300 ft
KCIT-DCE VC folder: 2010_10202w_MG-20.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdAGENDA ITEM #6. e)
PAGE
158
PAGE
159 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Kanaskat Natural Area
SE
H
u
d
s
o
n
R
d
Pipeline Rd
SE Green Rive
r
H
e
a
d
w
o
r
k
s
R
d
346th Ave SELa
k
e
U
m
e
k
R
d
S
E
UNINCORPORATEDKING COUNTY
MG-22
IMAGE_Ortho2019KCNAT
Tier 2 Project: MG-22Kanaskat Reach Restoration
PROJECT DESCRIPTION:Acquire about 3.5 acres, remove large house/garage/
septic, convert 3,300 lineal foot gravel road to backcountry trail, and extensively revegetate site.
PROJECT FACTS
Subwatershed:
Middle Green (MG)
River mile:
RM 59 / left bank
Bankside
jurisdiction:
King County
Project sponsor:
King County
Budget:
$600,000
Acquisition
$
Restoration
PROJECTTYPE:
Riparian
KEYHABITAT:KCIT-DCE VC folder: 2010_10202w_MG-22.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdPark Public Lands N0300600 ft150
Table 6
Middle Green River Subwatershed Tier 3 Projects
Proj. No.Project Name Project Type Project Description Sponsor
River mile and Bank
side/Nearshore
jurisdiction Primary Strategy (pick 1)Jurisdiction Goal alignment
MG-25 Little Soos
Restoration
- Wingfield
Neighborhood
• Education and outreach
• Planning/design
• Restoration
• Scoping/reconnaissance
Little Soos Creek at stream mile 1 runs through City of Covington
owned open space through the Coho Creek development. The stream
historically has been armored, disconnected from its floodplain and a
paved trail adjacent to the creek is often flooded in the winter. There
is an opportunity to restore in stream and floodplain habitat in the
stream through reconnecting the creek to its floodplain, restoring
side channels, removing artificial armoring, adding large wood, and
revegetating the riparian zone.
Mid Sound Fisheries
Enhancement Group
RM 33.3/right bank Protect, restore, and enhance
riparian corridors;
City of
Covington
• MG - Floodplain
connectivity/lateral channel
migration
• MG - Riparian forest
AGENDA ITEM #6. e)
UG-4
77 78
64
65
79
80 81 82
86
66
87
67
83
84
71
88
68
72
89
69
85
93
73
90
70
94
74
91
95
75
92
76
Smay Cr.Sunday Cr.Sn
o
w
C
r
.Sawmill Cr.
N.
F
o
r
k
G
r
e
e
n
R
i
v
e
r
Twin Ca
m
p
C
r.Charley Cr.Champion Cr.Tacom
a
Cr.
Gale C
r
.
Howard
Hansen
Reservoir
Green
R
i
v
e
r
0 1 2 4 Miles
N
River mile
Project location and name
River/creek
Major road
Urban Growth Area
line
King County boundary
Figure __
Lower Green River Subwatershed Projects
Note:
The use of the information in this map is subject to the
terms and conditions found at:
www.kingcounty.gov/services/gis/Maps/terms-of-use.asp
x. Your access and use is conditioned on your acceptance
of these terms and conditions.
KCIT-DCE File:
2011_10202L_W9SHP_ProjMap_UGR.ai LPRE
GIS File:
Q:\20009\WRIA9_Watershed.mxd KLINKAT
1 Upper Green River
Subwatershed boundary
WRIA 9 boundary
Public lands
Parks
Incorporated area
Open water
UG-1
Upper Green River Subwatershed 1
project
Tier 1 (Score 18+) 1 project
UG-4 .......Howard Hanson Downstream Fish Passage
Figure 30
Upper Green River
Subwatershed
Projects
PAGE
160 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
RM
64
UG-4
Howard
Hanson
Reservoir
Green
R
i
v
e
r
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
N0200400 ft.Public
Lands
Edge Riparian
Planning/
Design
Scoping/
Reconnaissance
Tributary Upland
Primary strategy
Restore and improve fish passage.
Benefits:
• Increased habitat connectivity
• Increased rearing habitat
• Water temperature reduction
Contribution to goals metrics:
• UG - Bank armor
PROJECT DESCRIPTION:
Creation of downstream fish passage at the
Howard Hanson dam is the highest priority
project within the Green/Duwamish watershed as
it would have an immediate and dramatic impact
on all Viable Salmonid Population (VSP)
parameters of Chinook and steelhead.
Tier 1 Project: UG-4
Howard Hanson Downstream Fish Passage
PROJECT FACTS
Subwatershed:
Upper Green (UG)
River mile:
King County (RM 64)
Banksidejurisdiction:
King County
Project sponsor:
King County/Army
Corps of Engineers
Budget:
Unknown
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: Google Earth
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
Side channel
PAGE
161 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
PAGE
162 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
PAGE
163 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Chapter 8:
Implementation Strategy
There are three major funding sources that sup-
port implementation of the projects and programs
prioritized within the Salmon Habitat Plan – Salm-
on Recovery Funding Board (SRFB), Puget Sound
Acquisition and Restoration Fund (PSAR), and King
County Flood Control District Cooperative Watershed
Management (CWM) grants. The WRIA also supports
project sponsors in seeking funding from various
other local, state and federal sources.
Annual Funding Package
WRIA 9 develops an annual funding package of pro-
jects based on anticipated allocations. The proposed
funding package is reviewed and approved by the
WRIA 9 Implementation and Technical Committee
(ITC) and Watershed Ecosystem Forum (WEF). This
funding package serves as the WRIA 9 Lead Entity’s
habitat project list, as defined in RCW 77.85.050.
Several factors are considered when building the
annual project list for funding. Primarily, the WRIA
supports projects from the list that demonstrate
readiness to proceed and have a high likelihood of
success, and where WRIA funding is critical to mov-
ing the project forward. Project tiering (Chapter VII)
will assist the ITC and WEF in making tough fund-
ing choices when there are more projects in need
than funding available. Project planning efforts with
partners have allowed the WRIA to project out-year
project funding needs which provides time to antic-
ipate funding shortfalls and seek outside support.
This long-term planning effort also allows sponsors
to align salmon projects with other jurisdictional
priorities, like those within their jurisdiction’s Capital
Improvement Plans and Transportation Improvement
Plans, as well as realistically phase large projects that
span multiple years.
Yearly, project sponsors assess the status of their
projects and funding needs and notify the WRIA 9
Habitat Project Coordinator of their intent to apply for
WRIA funding, and for how much. Projects undergo
a technical review by WRIA staff and the ITC. For
those projects competing for SRFB funding, projects
undergo an additional rigorous technical review by
the SRFB review panel.
AGENDA ITEM #6. e)
PAGE
164 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Salmon Recovery Funding
Salmon Recovery Funding Board (SRFB) funding
is administered through the Recreation and Conser-
vation Office (RCO). It is a fund source of combined
state salmon funds and federal Pacific Coast Salm-
on Recovery Funding (PCSRF). This annual fund
is allocated by a SRFB approved interim allocation
formula based in NOAA’s Chinook delisting criteria.
For several years, the Green/Duwamish watershed
has received $295,895 annually to support implemen-
tation of the Plan.
Puget Sound Acquisition and Restoration Fund
(PSAR) is co-managed by the Puget Sound Partner-
ship and the RCO. This is a Puget Sound specific fund
source appropriated through the State budget pro-
cess, within RCO’s budget request. In 2007, Governor
Christine Gregoire formed PSAR in direct response to
the growing need to restore habitat for salmon and
other wildlife within Puget Sound. The Green/Duwa-
mish has received just over $1.1 million biennially to
support implementation of the Plan. RCO serves as
the fiduciary for both PSAR and SRFB funding, so all
projects funded through SRFB and PSAR are re-
viewed and approved through the SRFB process.
King County Flood Control District Cooperative
Watershed Management Funds (CWM) are provid-
ed by the King County Flood Control district (KCFCD).
The KCFCD is a special purpose government creat-
ed to provide funding and policy oversight for flood
protection projects and programs in King County.
Funding for CWM is a small portion of the tax assess-
ment to support salmon recovery projects within the
four WRIAs in King County. In 2020, CWM funding
was doubled, and WRIA 9 now receives $3.63 million
annually to support high priority projects and pro-
grams. The FCD approves project lists annually.
Other Local, State and Federal Funding Sources –
In addition to these funding programs, sponsors are
encouraged to compete for other local, state and fed-
eral funds. It typically takes multiple funding sources
to implement projects due to project complexity and
cost. Many projects are initiated with and sustained
by local funding provided by the sponsoring juris-
diction. Other state and regional grant programs that
support salmon recovery include, but are not limited
to, the Estuary and Salmon Restoration Program
(ESRP), Floodplains by Design (FbD), Brian Abbott
Fish Barrier Removal Board (FBRB), Aquatic Lands
Enhancement Account (ALEA), and Washington
Wildlife and Recreation Program (WWRP). Addition-
ally, many of the projects within King County are
supported through the County’s Conservation Futures
Tax (CFT), a program passed by the Washington State
Legislature in the 1970s to ensure citizens have are
afforded the right to a healthy and pleasant environ-
ment. This fund specifically protects urban parks and
greenways, watersheds, working forests, and salmon
habitat as well as critical links connecting regional
trails and urban greenbelts.
WRIA 9 CWM Funding Allocation
High-Priority Capital Projects – CWM funding (>
65%) and all SRFB/PSAR capital funding. The WRIA
invests the majority of annual funding on high priority
capital projects that protect and restore critical hab-
itats. These projects are identified through planning
efforts like the Duwamish Blueprint, Middle Green
Blueprint, and the Lower Green River Corridor plan-
ning process. More recently, projects incorporated in
this Plan Update were solicited from partner organi-
zations.
Regreen the Green small grant program - Up to
$500,000 of CWM funding. This grant program orig-
inated in 2016 after the completion of the “Re-Green
the Green Revegetation Strategy” to support imple-
mentation of the priority sites identified in the plan.
It has served as a primary source of funding to those
focusing on revegetation efforts along critical areas in
the Green/Duwamish. Additionally, this program has
supported successful coalition building, landowner
outreach campaigns, and network development that
helps achieve broader Plan engagement goals.
Monitoring, Research and Adaptive Management
– Up to 10% of CWM funding. This funding is essential
to informing adaptive management and maximizing
return on investment with respect to salmon recovery.
This funding allocation also supports the Green River
smolt trap managed by Washington Department of
Fish and Wildlife.
Stewardship, Engagement and Learning – Up to
5% of CWM funding. This funding supports Stew-
ardship, Engagement and Outreach efforts designed
to increase awareness around salmon recovery and
promote positive behavior change.
AGENDA ITEM #6. e)
PAGE
165 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Outyear Project Planning (6-year HCPIP)
WRIA 9 maintains a Habitat Capital Project Imple-
mentation Plan (HCPIP) that identifies all projects
with expected funding needs for three biennium (6
years). While these numbers are estimates they pro-
vide a sense of the magnitude of funding needed per
year. This implementation plan supports staff in work-
ing with partners to properly sequence and support
projects throughout the project life cycle, and to seek
out additional funding to compliment WRIA directed
funds. In many cases, WRIA directed funding sources
are inadequate to support the full scope of a project
but enable project sponsors to leverage other local,
state and federal funds. The HCPIP will be updated
annually based on evolving project needs, and will be
published beinnially along with a call for projects.
To ensure projects acquire, restore, rehabilitate, or
create the type and amount of habitat that they was
described in the original project description for the
2020 Salmon Habitat Plan capital project solicitation
(or subsequent calls for projects), project sponsors
will be required present to the ITC or project work-
group (below) for at least one of the significant mile-
stones of the project design process.
This team will support ranking and tiering of any new
proposed large capital restoration projects and pro-
vide input on design for WRIA funded projects.
Performance Management
Projects receiving funding through grants directed by
WRIA 9 are often subject to various pressures from
other local, state, and regional funders, stakeholders,
and interested parties during project development. In
order to make sure projects acquire, restore, rehabil-
itate, or create the type and amount of habitat that
they described in the projects original description
for the Salmon Habitat Plan, project sponsors will be
required to present to the ITC or project workgroup
(below) for at least one of the significant milestones
of the project design process. For very large projects
that will likely seek PSAR Large Capital funding, or
large-scale complex projects with multiple objectives,
the WRIA may request sponsor design teams include
a WRIA technical representative to support WRIA 9
salmon recovery project priorities.
An ad hoc project workgroup will be established to
support elements of project development, made up
of three to five members of the ITC. This team will
rank and tier newly proposed large capital restoration
projects and provide input on design for WRIA-fund-
ed projects. The goal of this workgroup would be to
provide feedback that will maximize salmon benefits,
incorporate lessons learned from previous projects,
ensure projects meet the highest possible outcomes
for salmon, and help reduce project costs by address-
ing issues early in design.
It is anticipated that project sponsors will work with
the Habitat Project Coordinator to present to the
project workgroup or the ITC as follows, or if major
changes/updates were made to the design:
1. Alternatives analysis - Project Workgroup
2. 30% design - Full ITC
3. 90% design - Full ITC
Project sponsors are expected to maintain fidelity to
the original habitat deliverables. Naturally projects
will evolve as more is learned about project design
and feasibility. The project sponsor is responsible for
alerting the WRIA if substantive modifications to the
original scope are required. Modifications to the scope
of the project may invoke a full project team review
to affirm the project tier and may require subsequent
approval from the ITC or WEF. Failure to notify the
WRIA of these changes, or use of funding outside of
the approved scope, could result in the withholding of
future funding or constitute a breach of contract.
AGENDA ITEM #6. e)
PAGE
166 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
PAGE
167 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Chapter 9:
Monitoring and Adaptive Management
Adaptive Management Framework
The 2005 Salmon Habitat Plan outlined a sci-
ence-based blueprint for prioritizing Chinook salmon
recovery efforts in the Green/Duwamish and Central
Puget Sound Watershed. This Plan Update reflects
an ongoing commitment to adaptive management to
ensure prioritization and sequencing of investments
reflect best available science and maximize benefits
to Chinook salmon, in terms of established viable
salmon population criteria. WRIA 9 convenes a regu-
lar Implementation and Technical Committee (ITC) to
oversee monitoring and adaptive management of the
Salmon Habitat Plan. The ITC informs monitoring pri-
orities, evaluates plan implementation and recovery
progress, and makes formal policy and funding rec-
ommendations to the Watershed Ecosystem Forum.
In 2020, WRIA 9 developed a Monitoring and Adap-
tive Management Plan (Appendix F) that outlines a
framework to:
• Prioritize research and monitoring investments to
address important data and knowledge gaps;
• Support status and trends monitoring to assess es-
tablished habitat-related recovery goals and viable
salmon population metrics;
• Promote collaboration among partners engaged in
research and monitoring within the watershed; and
• Guide adaptive management of the Salmon Habitat
Plan.
The WRIA 9 Monitoring and Adaptive Management
Plan (MAMP) outlines three categories of monitoring
intended to help evaluate and inform strategic
adaptation of recovery efforts (Figure 31). Each
category of monitoring is intended to answer under-
lying questions related to implementation progress,
effectiveness of actions, and overall impact on
Chinook recovery.
• Implementation Monitoring: Is the plan being
implemented as intended? Are we on track to meet
established habitat targets?
• Effectiveness Monitoring: Are habitat projects
functioning as expected? Are habitat status and
trends improving throughout the watershed?
• Validation Monitoring: Are salmon recovery
efforts benefiting the Green River Chinook salmon
population (i.e., VSP criteria)? Are the underlying
scientific assumptions of the plan accurate?
AGENDA ITEM #6. e)
Figure 31. Types of monitoring used to evaluate management strategies and adapt them as necessary.
Periodic assessment of these questions allows wa-
tershed partners to reassess plan implementation,
underlying recovery strategies, and/or reallocate
resources to maximize outcomes.
Implementation Monitoring
The Plan Update outlines numeric targets for key
habitats (Table 2, Chapter IV) linked to Chinook
salmon productivity and recovery. The targets are
intended to inform tracking and assessment of plan
implementation (i.e., projects constructed, specific
habitat gains, funding secured) in relation to estab-
lished long-term goals. Regular evaluation of imple-
mentation progress feeds into an adaptive manage-
ment decision framework (Figure 32). This framework
connects decision makers (i.e., Watershed Ecosystem
Forum) with important monitoring and research find-
ings, informing corrective actions to recovery strate-
gies when necessary.
Effectiveness Monitoring
Effectiveness monitoring is designed to assess if hab-
itat restoration projects are functioning as intended
and achieving physical and biological performance
standards. It includes both project-level and cumula-
tive habitat conditions. Capital habitat project imple-
mentation can take over a decade from conceptual
design to construction and costs millions of dollars.
Effectiveness monitoring is essential to ensure large
capital investments maximize benefits to salmon and
help identify potential design improvements and cost
efficiencies that can be adapted into future projects.
FUNDING
PROJECTS
PROGRAMS
PROJECT
Routine
– Physical
– Biological
Enhanced
CUMULATIVE
HABITAT CONDITIONS
GREEN POPULATION
ONGOING RESEARCH
& DATA GAPS
IMPEMENTATIONMONITORING EFFECTIVENESSMONITORING VALIDATIONMONITORING
COMPREHENSIVE
MONITORING PLAN
PAGE
168 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
Figure 32. Adaptive management decision framework.
Routine Monitoring
Routine project effectiveness monitoring evaluates
whether restored habitat is functioning the way it was
intended 3-10 years after the project is built. Project
specific monitoring plans should be designed to
assess project-specific goals and objectives. Project
sponsors are encouraged to begin development of
a monitoring plan at the project’s 30 percent design
milestone to allow for pre-project monitoring that can
be essential for verifying if future changes are due to
the project’s actions or natural variability. The MAMP
(Appendix F, Table 2) outlines routine physical and
biological monitoring recommendations based on
project type and subtype. The highlighted indicators
and metrics are designed to be relatively affordable
and consistent with regulatory permit monitoring
requirements. Project sponsors are generally expect-
ed to undertake routine monitoring for WRIA-funded
projects and report monitoring results to the ITC.
Enhanced Fish Monitoring
Enhanced monitoring is focused on understanding
how fish use a restoration project type. Unlike routine
project monitoring, which asks whether a certain
type of habitat was created and sustained, enhanced
monitoring is meant to evaluate how fish utilize the
habitat, and which restoration techniques convey
the most benefit. Projects should be evaluated with
a combination of Before-After Control-Impact or
reference/control sites research designs. Enhanced
fish monitoring is outside the scope of monitoring for
many project sponsors, nor is it frequently required
by regulatory agencies. Due to the costs associated
with enhanced monitoring, WRIA 9 intends to contin-
ue to financially support enhanced fish monitoring of
select projects. The MAMP (Appendix F, Table 3) also
outlines a prioritization framework (certainty of bene-
fit, process-based vs. engineered design, project type
frequency, and project cost) for WRIA-directed invest-
Step 1 Step 2 Step 3
WRIA 9 Adaptive Management Decision Framework
YES
NO YES
NO
DON’TKNOW
YES
NO
YES NO
FACTORS LIMITING
IMPLEMENTATION
ADAPTIVE
MANAGEMENT
RECOMMENDATIONS
· regulations· enforcement
· incentives
HABITAT LOSSES
OFFSET GAINS
· increase funding
FUNDING
INSUFFICIENT
· education/outreach
· incentives· acquisition
LACK OF OPPORTUNITIES
OR WILLINGNESS
· permitting· stang
· funding strategy
INSUFFICIENT
RESOURCES OR CAPACITY
· new metric· funding for monitoring
· Monitoring Plan adjustment
INFORMATION
GAPS
2010_10102L_w9_AM_flowchart.ai
Was the target
achieved?
Is the
work
complete
?
Does Strategic
Assessment
information change the
understanding of current context?
· fish use/habitat
· climate change
· water quality
Does the metric
need to be revisited to
evaluate 2030
target?
Implement
towards 2030
target
Protect
restored
habitat
Why?
No further
changes to
recommendations
PAGE
169 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
PAGE
170 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
ments to support enhanced monitoring. Monitoring
results should be reported to the ITC and inform
necessary maintenance and/or design modifications.
Cumulative Habitat Conditions
The Salmon Habitat Plan outlines a suite of projects,
programs, and policies intended to improve cumula-
tive habitat conditions across the watershed. Monitor-
ing status and trends in cumulative habitat conditions
allows us to assess the overall effectiveness of plan
implementation. It provides data on the net change
(improving, no change, degrading) in specific habitat
conditions over time that supports evaluation of hab-
itat restoration in relation to ongoing impacts to, and
loss of, habitat. This information will help identity any
gaps in the watershed’s approach to salmon recov-
ery and help (re)direct partner resources to potential
areas of concern. The MAMP (Appendix F, Table 4)
outlines priority habitat metrics recommended for
inclusion as part of a periodic cumulative habitat as-
sessment that are consistent with the WRIA 9 Status
and Trends Report 2005-2011 (ITC 2012). The WRIA 9
ITC should complete a cumulative habitat conditions
every five years.
Validation Monitoring
Viable Salmon Population Criteria
The National Oceanic and Atmospheric Administra-
tion (NOAA) developed the viable salmon population
(VSP) concept as a tool to assess the conservation
status of a population. NOAA defines a viable sal-
monid population as “an independent population
of any Pacific salmonid (genus Oncorhynchus) that
has a negligible risk of extinction due to threats from
demographic variation, local environmental varia-
tion, and genetic diversity changes over a 100- year
time frame” (McElhany, et al. 2000). Four parameters
are used to assess population status: abundance,
productivity; spatial structure, and diversity. These
measures of population status indicate whether the
cumulative recovery actions in our watershed are
improving the population’s overall viability and long-
term resilience.
The MAMP (Appendix F, Table 5) outlines recom-
mended metrics to evaluate VSP criteria that should
be monitored to assess the population status of the
Green River Chinook salmon population. Additional
NOAA-approved VSP targets are presented in Chap-
ter IV, Table 1. Although VSP parameters are not a
direct measurement of habitat conditions, habitat
availability, distribution and quality are inherently
reflected in VSP criteria. Tracking trends in the rec-
ommended VSP parameters allows resource man-
agers to evaluate how the population is responding
overtime to the net impact of conservation actions
and ongoing land use development activity in the
watershed. Over a long enough timeframe, results
can also inform recalibration of recovery strategies
if the conservation status of the population does not
improve or continues to decline.
The VSP concept – and conservation status of Green
River Chinook salmon – is influenced by a variety of
factors outside the scope of this plan (i.e., habitat).
The Puget Sound Salmon Recovery Plan emphasiz-
es that the conservation status of the Puget Sound
Chinook salmon Evolutionary Significant Unit is
ultimately linked to the “Four H’s” – habitat, hydro-
power, hatcheries and harvest. “Each of these factors
independently affects the (Shared Strategy Develop-
ment Committee 2007) status of salmon populations,
but they also have cumulative and synergistic effects
throughout the salmon life cycle. The achievement
of viability at the population and ESU level depends
on the concerted effort of all three factors working
together, not canceling each other out, and adjusting
over time as population conditions change” (Shared
Strategy Development Committee 2007).
Research and Data Gaps
The Salmon Habitat Plan Update reflects an update to
the scientific framework (i.e., Strategic Assessment) of
the original 2005 Plan. New scientific data improved
our understanding of the functional linkages between
environmental stressors, habitat, and population
productivity, abundance, diversity and spatial distri-
bution. This information is reflected in updates to the
WRIA 9 recovery strategies and embedded projects,
policies, and programs. Best avilable science is used
to recalibrate the magnitude and sequencing of our
strategic investments, maximizing the effectiveness of
our investments.
Numerous data gaps and uncertainties remain.
Ongoing investments in research and monitoring
will be essential to informing adaptive management
of recovery strategies and ensuring that plan imple-
AGENDA ITEM #6. e)
PAGE
171 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
mentation and associated funding decisions remain
science driven. Additional information on research
priorities and data gaps can be found in the Habitat
Use and Productivity, Temperature, Climate Change,
and Contaminant white papers in Appendices A-D.
These papers build on the existing 2004 WRIA 9 Chi-
nook Salmon Research Framework which utilized a
conceptual life-cycle model to organize and prioritize
research efforts to inform recovery planning.
AGENDA ITEM #6. e)
PAGE
172 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
PAGE
173 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Chapter 10:
References
Anderson, J.H., and P.C. Topping. 2018. “Juvenile Life History Diversity and Freshwater Productivity of Chinook
Salmon in the Green River, Washington.” American Fisheries Society 38 (1): 180-193.
B.E. Feist, E.R. Buhle, D.H. Baldwin, J.A. Spromberg, S.E. Damm, J.W. Davis, N.L. Scholz. 2017. “Roads to ruin:
conservation threats to a sentinel species across an urban gradient.” Ecol. Appl. 27: 2382-2396.
Beamer, E.M., W.T. Zackey, D. Marks, D. Teel, D. Kuligowski, and R. Henderson. 2013. Juvenile Chinook salmon
rearing in small non-natal streams draining into the Whidbey Basin. LaConner, WA: Skagit River System
Cooperative.
Campbell, L., A. Claiborne, N. Overman, and J. Anderson. 2019. Investigating juvenile life history of adult Green
River fall Chinook salmon using otolith chemistry. Final Report (Draft), Washington Department of Fish
and Wildlife.
Campbell, L.A., and A.M. Claiborne. 2017. Successful juvenile life history strategies in returning adult Chinook
from five Puget Sound populations. Salish Sea Marine Survival Project - 2017 Annual Report, Washington
Department of Fish and Wildlife.
Colton, J. 2018. An evaluation of potential impacts of chemical contaminants to Chinook salmon in the Green
-Duwamish Watershed. Technical Briefing, WRIA 9.
DeGasperi, C.L. 2017. Green-Duwamish River 2015 temperature data compilation and analysis. King County Water
and Land Resources Division.
Dethier, M.N., W.W. Raymond, A.N. McBride, J.D. Toft, J.R. Cordell, A.S. Ogston, S.M. Heerhartz, and and H.D. Berry.
2016. “Multiscale impacts of armoring on Salish Sea shorelines: Evidence for cumulative and threshold
effects.” Estuarine, Coastal and Shelf Science 175: 106-117.
AGENDA ITEM #6. e)
PAGE
174 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Dunagan, C. 2019. “Third Biennial Science symposium - Summary.” University of Washington.
Eaton, J.G., R.M. Scheller. 1996. “Effects of climate warming on fish thermal habitat in streams of the United
States.” Limnol Oceanogr 41: 109-1115.
Engel, J., K. Higgin, and E. Ostergaard. 2017. WRIA 9 Climate Change Impacts. WRIA 9 Watershed Ecosystem
Forum.
EPA. 2008. Aquatic life criteria for contamnants of emerging concern: General challenges and recommendations.
Draft White Paper, Prepared by the OW/ORD Emerging Contaminants Workgroup .
Hatchery Scientific Review Group (HSRG). 2004. Hatchery Reform: Principles and Recommendations of the
HSRG. Seattle, WA: Long Live the Kings.
Henning, J. 2004. An evaluation of fish and amphibian use of restored and natural floodplain wetlands. Prepared
by Washington Department of Fish and Wildlife for Environmental Protection Agency, Region 10.
Higgins, Kollin. 2017. “A synthesis of changes in our knowledge of Chinook salmon producitvity and habitat uses
in WRIA 9 (2004-2016).”
J.P. Meador, A. Yeh, E.P. Gallagher. 2018. “Adverse metabolic effects in fish exposed to contaminants of emerging
concern in the field and laboratory.” Environ Pollut. 236: 850-861.
Jeffres, C.A., J.J. Opperman, and P.B. Moyle. 2008. “Ephemeral floodplain habitats provide best growth conditions
for juvenile Chinook salmon in a California River.” Environmental Biology of Fishes 83: 449-458.
Johnson, L.L., G.M. Ylitalo, M.R. Arkoosh, A.N. Kagley, C. Stafford, J.L. Bolton, J. Buzitis, B.F. Anulacion, and T.K.
Collier, 2007. 2007. “Contaminant exposure in outmigrant juvenile salmon from Pacific Northwest estuaries of
the United States.” Environ. Monit. Assess 124: 167-194.
K.T. Peter, Z. Tian, C. Wu, P. Lin, S. White, B. Du, J.K. McIntyre, N.L. Scholz, E.P. Kolodziej. 2018. “Using High-Reso-
lution Mass Spectrometry to Identify Organic Contaminants Linked to Urban Stormwater Mortality Syndrome in
Coho Salmon.” Environ. Sci. Technol. 52 (18): 10317-10327.
King County. 2014. Development of a Stormwater Retrofit Plan for Water Resources Inventory Area 9: Compre-
hensive needs assessment and extrapolation to Puget Sound. Seattle, WA: Prepared by Jim Simmonds and Olivia
Wright, Water and Land Resources Division.
King County. 2010. Green River external advisory panel report. . Seattle, WA: Prepared by Tetra Tech.
King County. 2019. Juvenile Chinook Use of Non-natal Tributaries in the Lower Green River. Seattle, Washington:
Prepared by Chris Gregersen, Water and Land Division.
King County. 2006. The 2006 Annual Growth Report. King County, Washington.
King County. 2019. WRIA 9 Marine Shoreline Monitoring and Compliance Project Phase 2 Final Report. Prepared
by Kollin Higgins, Water and Land Resources Division.
King County. 2019. WRIA 9 marine shoreline monitoring and compliance project phase 2 final report. Seattle, WA:
Prepared by Kollin HIggins, King County Water and Land Resources Dvision, Science and Technical Support
Section.
AGENDA ITEM #6. e)
PAGE
175 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Konrad, C., H. Berge, R. Fuerstenberg, K. Steff, T. Olsen, and J. Guyenet. 2011. “Channel dynamicsin the MIddle
Green River, Washington, from 1936-2002.” Northwest Science 85: 1-14.
Kubo, J. 2017. Green River temperature and salmon. Technical Briefing, WRIA 9.
Lestelle, L.C., W.E. McConnaha, G. Blair, and B. Watson. 2005. Chinook slamon use of floodplain, secondary chan-
nel, and non-natal tributaries in rivers of western North America. Report prepared for the Mid-Wilamette Valley
Council of Governments, U.S. Army Corps of Engineers, and Oregon Department of Fish and Widlife.
Lundin, J.I., J.A. Spromberg, J.C. Jorgensen, J.M. Myers, P.M., Zabel, R.W. Chittaro, and et al. 2019. “Legacy habitat
contamination as a limiting factor for Chinook salmon recovery in the Willamette Basin, Oregon, USA.” PLoS
ONE 14 (3): e0214399. https://doi.org/10.1371/journal.pone.0214399.
Mauger, G.S, J.H. Casola, H.A Morgan, R.L. Strauch, B. Jones, T.M.B. Isaksen, L.W. Binder, M.B. Krosby, and A.K.
Snover. 2015. State of knowledge: Climate change in Puget Sound, Report prepared for the Puget Sound PArtner-
ship and the National Oceanic and Atmospheric Adminstration. Seattle: University of Washington.
Mauger, G.S. 2016. “Climate Change and Salmon Habitat – Building Resiliency.” Presentation to the WRIA 9 Imple-
mentation Technical Committee.
McElhany, P, M.H. Rucklelshaus, M.J. Ford, T.C. Wainwright, and E.P. and Bjorkstedt. 2000. Viable Salmonid Pop-
ulations and the Recovery of Evolutionary Significant Units. NOAA Technical Memorandum NMFS-NWFSC-42,
Seattle: NOAA, NMFS.
Meador, J. 2014. “Do chemically contaminated river estuaries in Puget Sound (Washington, USA) affect the
survival rate of hatchery-reared Chinook salmon?” Canadian Journal of Fisheries and Aquatic Sciences 71 (1):
162-180.
Munsch, S.H., J.R. Cordell, and J.D. Toft. 2016. “Fine scale habitat use and behavior of a nearshore fish communi-
ty: nursery functions, predation avoidance, and spatiotemporal habitat partitioning.” Marine Ecology Progress
Series 557: 1-15.
N.L. Scholz, M.S. Myers, S.G. McCarthy, J.S. Labenia, J.K. McIntyre, G.M. Ylitalo, L.D. Rhodes, C.A. Laetz, C.M.
Stehr, B.L. French, B. McMillan, D. Wilson, L. Reed, K.D. Lynch, S. Damm, J.W. Davis, T.K. Collier. 2011. “Recurrent
die-offs of adult coho salmon returning to spawn in Puget Sound lowland urban streams.” PLoS One 6: e29013.
Nelson, T., H. Berge, G. Ruggerone, and J. Cordell. 2013. DRAFT Juvenile Chinook migration, growth, and habitat
use in the Lower Green and Duwamish Rivers and Elliott Bay nearshore. Seattle: King County Water and Land
Resources Division.
NOAA. 2019. Biological Opinion on Howard Hanson Dam, Operations, and Maintenance, Green River (HUC
17110013) King County, Washington. Portland, OR: NOAA National Marine Fisheries Service.
O’Neal, K. 2002. Effects of global warming on trout and salmon in U.S. streams. Washington, D.C.: Defenders of
Wildlife.
O’Neil, S.M., A.J. Carey, J.A. Lanksbury, L.A. Niewolny, G. Ylitalo, L. Johnson, and J.E. West. 2015. Toxic contami-
nants in juvenile Chinook salmon migrating through estuary, nearshore and offshore habitats of Puget Sound.
Washington Department of Fish and Wildlife.
Paul, M.J., and J.L. Meyer. 2001. “The ecology of urban streams.” Annual Review of Ecology and Systematics 32:
333-365.
AGENDA ITEM #6. e)
PAGE
176 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
R2 Resource Consultants. 2013. “Juvenile salmonid use of lateral habitats in the MIddle Green River, Washington”.
A draft data report for the U.S. Army Corps of Engineers, Seattle District.”
R2 Resource Consultants. 2014. “Zone 1 Nourishment Gravel Stability Green River, Washington 2011/12 monitoring
results.”
Reinelt, L. 2014. “Green River System-Wide Improvement Framework, Green River, Washington.” King County
Water and Land Resources, October 23.
Rice, C.A. 2006. “shoreline modification in northern Puget Sound: beach microclimate and embryo survival in
summer spawning surf smelt (Hypomesus pretiosus).” Estuaries and Coasts 29 (1): 63-71.
Scholz, Julann A. Spromberg David H. Baldwin Steven E. Damm Jenifer K. McIntyre Michael Huff Catherine A.
Sloan Bernadita F. Anulacion Jay W. Davis Nathaniel L. 2016. “Coho salmon spawner mortality in western
US urban watersheds: bioinfiltration prevents lethal storm water impacts.” Journal of Applied Ecology 53:
398-407.
Scholz, N. 2019. “A cross-species evaluation of the Pacific salmon urban stream mortality syndrome.” WA Storm-
water Center 2019 Annual Research Review.
Scrivener, J.C., T.G. Brown, and B.C. Andersen. 1994. “Juvenile Chinook salmon (Oncorhynchus tshawytscha)
utilization of Hawks Creek, a small and nonnatal tributary of the upper Fraser River.” Canadian Journal of
Fisheries and Aquatic Sciences 51 (5): 1139-1146.
Sommer, T.R., M.L. Nobriga, W.C. Harrel, W Batham, and W.J. Kimmerer. 2001. “FLoodplain rearing of juvenile
Chinook salmon: evidence of enhanced growth and survival.” Canadian Journal of FIsheries and Aquatic
Sciences 58: 325-333.
Tabor, R.A., and Z.J. Moore. 2018. Restoration monitoring of Mapes and Taylor Creeks, two nonnatal Lake Washington
tributaries for juvenile Chinook salmon. Lacey, WA: U.S. Fish and Wildlife.
Tabor, R.A., J.A. Scheurer, H.A. Gearns, and M.M. Charles. 2011. “Use of nonnatal tributaries for lake-rearing juvenile
Chinook salmon in the Lake Washington basin, Washington.” Northwest Science 85 (3): 476-491.
Toft, J.D., A.S. Ogston, S.M. Heerhartz, J.R. Cordell, and E.E. Flemer. 2013. “Ecological responses and physical sta-
bility of habitat enhancements along an urban armored shoreline.” Ecological Engineering 57: 97-108.
Toft, J.D., J.R. Cordell, C.A., Simenstad, and L.A. Stamatiou. 2007. “Fish distribution, abundance, and behavior along
city shoreline types in Puget Sound.” North American Journal of FIsheries Management 27: 465-480.
U.S. Census Bureau. 2019. Quick Facts: King County, Washington. July 1.
https://www.census.gov/quickfacts/fact/table/kingcountywashington,US.
Varanasi, U., C Edmundo, T.H. Arkoosh, D.A Misitano, D.W. Brown, S.L. Chan, T.K. Collier, B.B. McCain, and J.E. Stein.
1993. Contaminant Exposure and Associated Biological Effects in Juvenile Chinook Salmon (Oncorhyn-
chus tshawytscha) from Urban and Nonurban Estuaries of Puget Sound. NOAA Technical Memorandum
NMFS-NWFSC-8, NOAA: National Marine Fisheries Service.
WA Dept. of Commerce. 2017. Puget Sound Mapping Project. Olympia, 11 01. https://www.commerce.wa.gov/serv-
ing-communities/growth-management/puget-sound-mapping-project/.
WRIA 9 . 2012. WRIA 9 status and trends monitoring report: 2005-2010. Prepared for the WRIA 9 Watershed Eco-
system Forum.
AGENDA ITEM #6. e)
Published by the
Green/Duwamish and Central Puget Sound Watershed
Water Resource Inventory Area 9 (WRIA 9)
Salmon Habitat Plan 2021 Update
MAKING OUR WATERSHED FIT FOR A KING
City of Algona
City of Auburn
City of Black Diamond
City of Burien
City of Covington
City of Des Moines
City of Enumclaw
City of Federal Way
City of Kent
King County
City of Maple Valley
City of Normandy Park
City of Renton
City of SeaTac
City of Seattle
City of Tacoma
City of Tukwila
Approved by the WRIA 9 Watershed Ecosystem Forum
on February 11, 2021
KCIT-DCE file: 2102_10102L_W9SHP-REPORT.indd
ROGER TABOR
AGENDA ITEM #6. e)
MAKING OUR WATERSHED FIT FOR A KING
Salmon Habitat Plan
2021 Update
Appendices
GREEN/DUWAMISH AND
CENTRAL PUGET SOUND WATERSHED
Water Resource Inventory Area 9 (WRIA 9)
Approved by the WRIA 9 Watershed Ecosystem Forum on
February 11, 2021
AGENDA ITEM #6. e)
PAGE
A-ii Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 UpdatePAGE
A-ii Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
List of Appendices
Appendix A: An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the
Green-Duwamish Watershed
Appendix B: A Synthesis of Changes in our Knowledge of Chinook Salmon Productivity and Habitat Use
in WRIA 9 (2004 – 2016)
Appendix C: Green River Temperature and Salmon
Appendix D: WRIA 9 Climate Change Impacts on Salmon
Appendix E: Capital Project Evaluation Template
Appendix F: Monitoring and Adaptive Management Plan
Appendix G: Recovery Strategies
AGENDA ITEM #6. e)
Green-Duwamish and Central Puget Sound Watershed Salmon Habitat Plan • November 2020 PAGE
A-1
ROGER TABOR
Appendix A:
An Evaluation of Potential Impacts of Chemical
Contaminants to Chinook Salmon in the Green-
Duwamish Watershed
AGENDA ITEM #6. e)
An Evaluation of Potential
Impacts of Chemical
Contaminants to Chinook Salmon
in the Green-Duwamish
Watershed
January 2018
Alternate Formats Available
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of
Chemical Contaminants to Chinook
Salmon in the Green-Duwamish
Watershed
Prepared for:
Water Resource Inventory Area 9 Watershed Ecosystem Forum
Submitted by:
Jenée Colton
King County Water and Land Resources Division
Department of Natural Resources and Parks
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section i January 2018
Acknowledgements The author would like to thank Kollin Higgins for contributing references on juvenile Chinook ecology and providing feedback on report drafts. Elissa Ostergaard provided early feedback on the report outline and partial draft. Matt Goehring reviewed two full drafts of the report and Deborah Lester, Debra Williston, and Jeff Stern provided valuable comments on the draft final report. Many thanks to the WRIA 9 ITC members for contributing helpful feedback throughout paper development.
Citation King County. 2018. An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed. Prepared by Jenée Colton, Water and Land Resources Division. Seattle, Washington for the WRIA 9 Watershed Ecosystem Forum.
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green‐Duwamish Watershed
King County Science and Technical Support Section ii January 2018
Table of Contents
1.0 Introduction ................................................................................................................................................. 1
2.0 Contaminant Pathways ........................................................................................................................... 3
2.1 Transport Pathways ............................................................................................................................ 3
2.2 Exposure Pathways .............................................................................................................................. 4
3.0 Contaminant Information ...................................................................................................................... 9
3.1 Background on Health Effects of Chemical Contaminants to Fish ................................... 9
3.2 Chemical Contaminants in Water ................................................................................................ 12
3.3 Chemical Contaminants in Sediments........................................................................................ 21
3.4 Benthic Community Health Assessment ................................................................................... 29
3.5 Chemical contaminants in Chinook Salmon and their Diet .............................................. 30
3.6 Modeled and Observed Adverse Effects on Chinook ........................................................... 33
4.0 Current and Future Actions ................................................................................................................. 36
5.0 Uncertainty ................................................................................................................................................. 40
5.1 Data Quantity ........................................................................................................................................ 40
5.2 Chinook Effects Assessment Methods ........................................................................................ 41
6.0 Discussion and Conclusion .................................................................................................................. 44
7.0 Recommendations ................................................................................................................................... 48
8.0 References ................................................................................................................................................... 50
Figures
Figure 1. Conceptual transport pathways to Green‐Duwamish River ........................................ 4
Figure 2. Invertebrate prey categories of juvenile Chinook salmon (n=321) from
seven Duwamish Estuary locations (Nelson et al. 2013) .............................................. 6
Figure 3. Contaminant exposure pathways to juvenile Chinook salmon. .................................. 7
Figure 4. Juvenile Chinook salmon residence times in the Green‐Duwamish River ............. 8
Figure 5. Water chemistry stations reviewed by King County (2017a) except for East
Waterway Supplemental RI stations. ................................................................................... 14
Figure 6. King County sampling stations in the Lower and Middle Green River (King
County 2014a)................................................................................................................................ 19
Figure 7. King County sampling stations in the Middle and Upper Green River (King
County 2014b) ............................................................................................................................... 20
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green‐Duwamish Watershed
King County Science and Technical Support Section iii January 2018
Figure 8. Surface sediment stations (collected 1991‐2013) with benthic exceedances
along the East, West, and Lower Duwamish waterways before EAA
remediation actions. .................................................................................................................... 23
Figure 9. Total PCB concentrations in Green River tributary and mainstem sediments
(King County 2014b). .................................................................................................................. 24
Figure 10. Updated map of SMS exceedances for the LDW surface sediments in non‐
remediated areas .......................................................................................................................... 28
Figure 11. Conceptual Site Model and Pathways for Juvenile Chinook from LDW
Baseline Risk Assessment ......................................................................................................... 34
Figure 12. Remedial Actions in the EPA Selected Remedy for the LDW (EPA 2014) ........... 37
Tables
Common sources of common metals and organic chemical contaminants
and their adverse effects on freshwater fish. ................................................................... 10
Water chemistry sampling locations, sample depths and years sampled
from King County (2017a) ........................................................................................................ 14
Summary of metals concentrations (mg/L) and WQS exceedances (bolded)
in the Lower Duwamish Waterway and Green River (From Table 3‐43 of
King County 2017a) ..................................................................................................................... 16
Total PCB concentrations (µg/Kg wet) in juvenile Chinook salmon relative
to English Sole in the East Waterway and LDW (King County 2017a). ................. 31
Summary of Information available on contaminant risk to juvenile Chinook. .. 45
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section iv January 2018
Acronyms µg/Kg micrograms per kilogram µg/g micrograms per gram CEC contaminants of emerging concern cfs cubic feet per second CS0s combined sewer overflows CSL cleanup screening level cy cubic yard Ecology Washington State Department of Ecology ENR enhanced natural recovery EPA U.S. Environmental Protection Agency EW East Waterway FS feasibility study HPAH polycyclic aromatic hydrocarbon LDW Lower Duwamish Waterway ng/g nanogram/gram PAHs polycyclic aromatic hydrocarbons PBDE polybrominated diphenyl ethers PCB polychlorinated biphenyls PPCP pharmaceuticals and personal care products RI remedial investigation RM river mile ROD record of decision SCO sediment cleanup objective SQS sediment quality standard TBT tributyltin USGS United States Geological Survey WDFW Washington Department of Fish and Wildlife WQS water quality standards WRIA water resource inventory area
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section v January 2018
Executive Summary The 2005 Green-Duwamish Salmon Habitat Plan identified protection and improvement of sediment quality as a Tier 3 conservation hypothesis for salmon recovery. Although sediment clean-up was hypothesized to benefit Chinook salmon, limited scientific data were available on the potential impacts of sediment contamination on Chinook salmon productivity. Other habitat quality and quantity issues were more well-defined and identified as higher priority needs in the watershed. WRIA 9 commissioned this paper in 2017 – along with several other white papers – to address priority data gaps identified during the scoping of the 10-year update to the Salmon Plan. This paper summarizes research completed since the 2005 Plan was adopted on the potential impacts of chemical contaminants on Chinook salmon productivity in the Green-Duwamish watershed. The information is intended to inform identification and prioritization of recovery needs as WRIA 9 watershed partners update the 2005 Salmon Plan. Contaminants are carried from sources to surface waters as well as within surface waters, by transport pathways. Contaminants can be carried to the Green-Duwamish receiving waters by point discharges (permitted industrial, stormwater and combined sewer overflows [CSOs] discharges), overland flow (stormwater runoff), groundwater, and direct atmospheric deposition, as well as by spills/leaks and bank erosion. Fish are exposed to chemicals through multiple routes including water passing through their gills and/or its ingestion, direct sediment contact and/or its ingestion, and/or through consumption of contaminated food. The importance of an exposure pathway to a fish is dependent on several variables primarily related to the chemical properties of the contaminant (e.g., hydrophilic, hydrophobic) and the ecology of the species of interest (e.g., diet, benthic or pelagic habits). Generally, water exposure and food consumption are the greatest exposure pathways to Chinook. Because juvenile Chinook spend a longer amount of time in the Green-Duwamish watershed than adult Chinook, their exposure to chemicals and risk of health impact are greater. In addition, juvenile Chinook are feeding during this period and consuming prey that are potentially contaminated. Metals such as aluminum and selenium, have low toxicity under typical environmental conditions. Several other metals, such as copper, chromium, and lead, share similar acute symptoms resulting from disturbance of homeostasis. However, chronic exposure symptoms range widely from neurological and reproductive to sensory system and immune system impacts. Common classes of organic contaminants include pesticides, pharmaceuticals, phthalates, polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), and polybrominated diphenyl ethers (PBDEs). Three commonly detected organic chemical contaminants in the Puget Sound Region are PCBs, PAHs, and PBDEs. There is a wide variety of possible health effects in fish from organic chemical exposure. The available ambient water, sediment, and Chinook salmon tissue chemistry and sediment bioassay data collected in the Green-Duwamish watershed and the ecological assessments that use these data are reviewed in this report. Key information found from this review includes:
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section vi January 2018
Observations of potential impacts of contaminants
• Chinook salmon return rates are substantially lower in contaminated estuaries, like the Duwamish, compared to uncontaminated estuaries. Tissue chemistry/biomarkers
• Lower Duwamish Waterway (LDW) and East Waterway (EW) risk assessments did not identify risk of impaired growth or survival for juvenile Chinook salmon. However, the LDW risk assessment noted reduced immunocompetence may occur in juvenile Chinook migrating through the LDW.
• Subsequent studies, using more conservative assumptions, concluded PCBs may be causing health impacts in Chinook salmon.
• The risks of impacts to Chinook salmon from Chemicals of Emerging Concern (CECs) are unknown although these chemicals are likely present in wastewater discharges, and to a lesser degree stormwater discharges to the Green/Duwamish watershed.
• Relatively little juvenile Chinook tissue data have been collected or evaluated in the Duwamish Estuary in the last 10 years, and less data are available for the Green River. Tissue chemistry data indicate juvenile Chinook salmon are bioaccumulating contaminants while in the Duwamish Estuary. Tissue assessments suggest that PCB exposure may be causing sublethal adverse effects to juvenile Chinook salmon. Sediment
• In the most contaminated areas of the LDW and EW, contaminated sediments are potentially impacting benthic invertebrates which could reduce the quantity or quality of food for juvenile salmon.
• Juvenile Chinook salmon in the Duwamish Estuary are exposed to sediments contaminated with PCBs, PAHs, some metals, and phthalates.
• In the Duwamish Estuary, PCBs are the most widespread sediment contaminant. Sediment contaminants in the Green River need more characterization. Based on existing data, sediment contamination is highest in Mill (in Kent) and Springbrook creeks and may be a concern to benthic invertebrates. Mill Creek (in Auburn) is less contaminated, and Jenkins, Newaukum, Covington, or Big Soos creeks are of little concern. Arsenic and BEHP concentrations most frequently exceeded the no-effects benthic sediment cleanup level (SCO) in Green River tributaries.
• Superfund cleanup of contaminated sediments will be an important step in reducing the exposure of aquatic life including Chinook salmon to contaminants, particularly PCBs. Sediment recontamination will remain a risk from dredging activities during cleanup of the LDW and EW. Water chemistry
• Several water quality assessments have not identified any chemicals that are presenting notable risk to aquatic life. Of the chemicals investigated, mercury in water may be a chronic exposure risk for juvenile Chinook salmon in the Green River.
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section vii January 2018
While tracking the LDW cleanup schedule, it is recommended that further direct work on Duwamish Estuary Chinook salmon be supported by the WRIA 9 group. Work completed before cleanup begins on the LDW and EW will provide a foundation for comparison with future data to measure how juvenile Chinook health and contaminant impacts change over time. This work will be most efficiently directed at Chinook diet and tissue chemistry, biomarkers and sublethal effect measurement and improvement of Chinook-specific effect thresholds. In addition to ongoing support for cleaning up contaminants in sediments and limiting future contaminant transport to surface waters, specific recommendations for future work include:
• Conduct studies that measure contaminants in juvenile Chinook tissues and stomach contents at different life stages or residence times; e.g., in rearing habitat for Chinook, in restored habitat project areas, and where tributaries enter the Green River. This work will strengthen the small dataset available for risk evaluation.
• Focus new studies on contaminants known to be elevated in the Duwamish Estuary and for which substantial effects data are published for some salmonids (PCBs, PAHs) and opportunistically explore CECs, such as pharmaceuticals, in water and Chinook salmon to build a chemistry database. CEC analysis is costly, effects analysis tools are lacking, and substantial new data are necessary to begin risk evaluation for Chinook. Therefore, prioritizing known contaminants first will optimize resources.
• Establish one or more new tissue effect thresholds for PCBs that are Chinook-specific. Effects thresholds are a tool that allow chemistry results to be placed into the context of toxicity. PCBs are the most widespread contaminant in the Duwamish Estuary. Outside of Superfund risk assessments, there is only one published PCB effect threshold that has been developed to assess Chinook in this region. Given the highly variable assumptions made in defining an effects threshold, developing one (or more) new PCB thresholds would provide a more stable foundation for evaluating how PCBs are affecting Chinook survival.
• Support studies that examine other effects evidence (e.g., juvenile Chinook bioassays with Duwamish sediments, biomarkers) by providing in-kind or financial assistance. In addition to the types of evidence recently collected for Chinook salmon (tissue and stomach content chemistry concentrations), work on other lines of evidence that can demonstrate occurrence of contaminant effects. For example, encourage National Oceanic and Atmospheric Administration or Washington Department of Fish and Wildlife to conduct laboratory exposure of salmon for PCB, PBDE, PAH effect endpoints using Duwamish sediments.
• Tease out cause(s) of lower smolt-to-adult return (SAR) by collecting juvenile salmon when they leave the Duwamish Estuary and measure body mass, nutrition and stomach contents and compare to mass of Chinook salmon at release from hatcheries. This would test if food quality (e.g., benthic invertebrates) between hatcheries and Duwamish Estuary mouth may be reducing juvenile health and decreasing SAR.
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section viii January 2018
This page intentionally left blank.
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 1 January 2018
1.0 INTRODUCTION The 2005 Green-Duwamish Salmon Habitat Plan identified protection and improvement of sediment quality as a Tier 3 conservation hypothesis for salmon recovery. Although sediment clean-up was hypothesized to benefit Chinook salmon, limited scientific data were available on the potential impacts of sediment contamination on Chinook salmon productivity. Other habitat quality and quantity issues were more well-defined and identified as higher priority needs in the watershed. WRIA 9 commissioned this paper in 2017 – along with several other white papers (Engel et al., 2017, Higgins 2017, Kubo 2017) – to address priority data gaps identified during the scoping of the 10-year update to the Salmon Plan. It summarizes research completed since the 2005 Plan was adopted on the potential impacts of chemical contaminants on Chinook salmon productivity in the Green-Duwamish watershed. The information is intended to inform identification and prioritization of recovery needs as WRIA 9 watershed partners update the 2005 Salmon Plan. This report does not critique individual studies for the strength of their study design or sampling or analytical methods. This report does review the type and quantity of information available from published sources with the intent of summarizing any available evidence that Chinook salmon may be adversely affected by toxic contaminants as well as describing where the largest knowledge uncertainty lies. The concepts of contaminant transport and exposure pathways are defined to provide context and general information on the potential health effects of specific metals and some common organic chemical contaminants in fish is included. Then, summaries are provided of available chemical contaminant and biomarker data measured in Green-Duwamish watershed water, sediment, and aquatic biota including evaluations of their impacts to Chinook salmon and/or their prey. Recent and thorough data compilations have been completed for water and sediment data and are used for efficiency. Relevant findings for Chinook salmon from Superfund ecological risk assessments are also included. There are several ongoing Green-Duwamish watershed policy programs and initiatives which have potential to influence or spawn new actions that influence contaminant sources or cleanup. These programs/initiatives are briefly described. The majority of available contaminant information for the Green-Duwamish watershed comes from the Duwamish Estuary 1 because of investigations completed in the Lower Duwamish Waterway (LDW) Superfund Site and the West Waterway and East Waterway portions of the Harbor Island Superfund Site. The LDW Remedial Investigation (RI) was initiated in 2001 and completed in 2010 (Windward 2010) and the Feasibility Study (FS) was completed in 2012 (AECOM 2012). EPA released the Record of Decision (ROD) in 2014 (EPA 2014). Concurrently over this period, cleanup actions occurred in three of five Early Action Areas containing the highest levels of contamination. The LDW site is currently in pre-design phase before the remaining cleanup begins. A No Action Decision for the West 1 The Duwamish Estuary includes the Lower Duwamish, East, and West Waterways.
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 2 January 2018
Waterway unit of the Harbor Island Superfund Site (West Waterway) was issued by EPA in 2003 which did not require remediation for this site (EPA 2003). A supplemental RI was completed for the East Waterway unit in 2014 (Windward and Anchor QEA 2014). The draft East Waterway FS was completed in 2016 (Anchor and QEA 2016) and will be finalized in 2018 (pers. comm. Williston 2017). Relatively little information is available across the entire Green-Duwamish watershed regarding how chemical contamination impacts Chinook salmon. Therefore, information is also presented as it relates to salmon or fish in general to provide context regarding the overall level of contamination in the watershed. There are studies that characterize chemical concentrations in water and sediment but these have not been tied directly to salmon impacts. Potential benthic community effects have been assessed with sediment chemistry and bioassay data. Most of the available data are for sediments in the Duwamish Estuary because sediments are considered the key medium of contamination driving human health and ecological risk in the respective Superfund sites. Studies that have measured contaminants in juvenile Chinook salmon are limited. In addition, data from a small number of studies are available that have investigated potential adverse health effects of contaminants in the Duwamish Estuary on salmon. Contaminant information from these studies is summarized within this report.
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 3 January 2018
2.0 CONTAMINANT PATHWAYS Contaminants are carried from sources to surface waters and also within surface waters, by transport pathways. Understanding which chemical transport pathways are most important assists in prioritization of sources. Once present in fish habitat, fish may be exposed to contaminants in various ways, some of which depend on their diet and behavior. The level of impact that contaminants have on Chinook salmon or other organisms is dependent on how the fish is exposed (i.e., the exposure pathway), contaminant quantity (i.e., dose) and the duration of exposure. The conceptual transport and exposure pathways for fish in the Green-Duwamish River are summarized below; these concepts are used throughout the document to discuss how chemical contaminants may affect salmon in the Green-Duwamish watershed.
2.1 Transport Pathways Contaminants can be carried to the Green-Duwamish receiving waters by point discharges (permitted industrial, stormwater and combined sewer overflows [CSOs] discharges), overland flow (stormwater runoff), groundwater, and direct atmospheric deposition (Figure 1) as well as spills/leaks and bank erosion. Once in the Green-Duwamish River watershed, contaminants can be transported geographically or within the food web by different mechanisms such as tidal currents, sediment resuspension by vessel traffic, and trophic transfer (i.e., through the food web). Transport pathways are not sources themselves, but routes by which contaminants are moved from sources to receiving waters or between different geographic areas of receiving waters.
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 4 January 2018
Figure 1. Conceptual transport pathways to Green-Duwamish River
2.2 Exposure Pathways Fish are exposed to chemicals through multiple routes including water passing through their gills and/or its ingestion, direct sediment contact and/or its ingestion, and/or through consumption of contaminated food. The importance of an exposure pathway to a fish is dependent on several variables primarily related to the chemical properties of the contaminant (e.g., hydrophilic, hydrophobic) and the ecology of the species of interest (e.g., diet, benthic or pelagic habits). For example, polychlorinated biphenyls (PCBs) are a group of chemicals that do not readily dissolve in water and tend to bind to solids due to their chemical properties. Therefore, PCBs tend to associate with sediments and accumulate in fish species that have close contact with the river bottom and/or consume benthic prey. These species experience higher exposure than those that reside in the water column and consume plankton or plants. These hydrophobic properties of PCBs result in their affinity for fatty tissue and their propensity to bioaccumulate. Therefore, fish that are piscivorous (i.e., consume other fish) tend to accumulate more PCBs than planktivorous or insectivorous fish.
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 5 January 2018
Chinook salmon are not a demersal species (i.e., one living on bottom sediments) like English sole. Thus, direct contact with contaminated sediments is likely a relatively minor pathway. In general, water ingestion through feeding or respiration and food ingestion are primary exposure pathways for any life stage of Chinook salmon. Incidental sediment ingestion through feeding may be an important pathway for juvenile Chinook depending on their feeding strategy. Studies throughout Puget Sound indicate that juvenile Chinook are opportunistic feeders in estuarine and marine waters, appearing to feed on a wide variety of prey as opposed to showing clear preferences for a specific category of prey (e.g., plankton) like other juvenile salmon species (Fresh 2006; Nelson et al. 2013; Figure 2). Stomach contents of juvenile Chinook from the Duwamish Estuary sometimes contain mainly terrestrial insects (Morley et al. 2012) or annelid worms, midges and bivalve siphons (David et al. 2015, Cordell et al. 2006). Directly targeting benthic instead of pelagic food would increase contaminant exposure of Chinook salmon from incidental ingestion of sediment. Juvenile Chinook may shift their diet as different prey become available which would also shift significance of their food and sediment exposure pathways. The importance of the sediment ingestion pathway to juvenile Chinook is uncertain in the Green-Duwamish watershed and likely variable in space and time. Risk assessments for juvenile Chinook may conservatively assume their prey is 100% benthic invertebrates because this results in higher contaminant exposure from food ingestion than from assuming a plankton diet. Potential exposure pathways of juvenile Chinook in streams and rivers are illustrated in Figure 3.
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 6 January 2018
Figure 2. Invertebrate prey categories of juvenile Chinook salmon (n=321) from seven
Duwamish Estuary locations (Nelson et al. 2013)
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 7 January 2018
Figure 3. Contaminant exposure pathways to juvenile Chinook salmon. Arrow thickness
denotes relative importance. Life stage is a key factor that determines which exposure pathways are most important for salmon. The different life stages of Chinook salmon have varied feeding strategies and residence times. Adult Chinook salmon in the Green-Duwamish watershed are returning to spawn, no longer feeding and cumulatively spend relatively little time (i.e., 3–5 months) in the watershed (Engel et al. 2017). Juvenile Chinook salmon spend months to 1+ years in the Green River and days to months in the Duwamish Estuary (Figure 4). Also, juvenile Chinook consume a diet of benthic invertebrates and some zooplankton and terrestrial insects (Cordell et al. 2006), giving them greater dietary exposure, as well as residence time, than adult Chinook in the Green-Duwamish watershed.
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 8 January 2018
Figure 4. Juvenile Chinook salmon residence times in the Green-Duwamish River (modified
from Ruggerone and Weitkamp 2004)
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 9 January 2018
3.0 CONTAMINANT INFORMATION This section provides a summary of contaminant concentrations measured in watershed media and evaluations of their risks to Chinook salmon through direct and indirect exposure pathways.
3.1 Background on Health Effects of Chemical
Contaminants to Fish Chemical contaminants can cause a variety of adverse effects in fish. Metals and organic chemicals are discussed separately in this section due to differences in their behavior and chemical properties, and, therefore, toxic effects. The following information applies to fish in general unless a particular species is mentioned. Mechanisms of acute toxicity and adverse effects of chronic exposure described here are primarily taken from a comprehensive review by Wood et al. (2012a and b) for metals and several local studies for organic chemicals. The mechanisms of metals toxicity in Chinook salmon and other marine/anadromous fish are not well understood (Wood 2012) but are informed by research on freshwater fish. Chinook salmon and other salmonids may be more or less sensitive to contaminants than freshwater species. Information specific to Chinook salmon are provided in this section, where available, particularly from local studies. However, an extensive literature search was not conducted on this topic. Therefore, this summary is not comprehensive and additional specific studies on adverse effects may be available for Chinook salmon. This information is intended to provide a general guide on health effects to fish. Metals commonly measured as potential environmental contaminants from human sources include aluminum, arsenic, cadmium, chromium, copper, lead, mercury, nickel, selenium, and zinc. All metals are naturally occurring but also have human sources. Some metals are essential, meaning they are necessary for biological life in small amounts; some are non-essential. Both types can be toxic to fish, but non-essential metals are more toxic (e.g., cause effects at lower levels). Metals in aquatic ecosystems can be in free, dissolved form (most bioavailable) or bound to solids (least bioavailable). Table 1 outlines some common sources and adverse effects of different metals on freshwater fish. Metals such as aluminum and selenium, have low toxicity under typical environmental conditions. Several other metals, such as copper, chromium, and lead, share similar acute symptoms resulting from disturbance of homeostasis but range widely in their chronic symptoms from neurological and reproductive to sensory system and immune system impacts. Organic chemicals are those that contain carbon. The number of possible environmentally present organic contaminants outnumbers the possible metals contaminants by orders of magnitude. Common classes of organic contaminants include pesticides, pharmaceuticals, phthalates, polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), and polybrominated diphenyl ethers (PBDEs). Three commonly detected organic chemical contaminants in the Puget Sound Region are PCBs, PAHs, and PBDEs. There is a wide variety of possible health effects in fish from organic chemicals. See Table 1 for examples of
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 10 January 2018
adverse effects caused by exposure to these compounds. Ionic imbalance refers to problems with osmoregulation with the surrounding waters, usually due to interruptions of ion pumps located in the gill.
Common sources of common metals and organic chemical contaminants and their
adverse effects on freshwater fish.
Contaminant Naturally
Occurring?
Common Non-
natural Sources
Symptoms
with Acute
Mortality
Primary Chronic
Exposure Effects
Aluminum Yes Mining, aerospace,
many consumer
products (Wood et al.
2012b).
Only in
extreme pH:
ionic
imbalance,
respiratory
disturbance
(Wood et al.
2012b).
Same as acute (Wood
et al. 2012b).
Arsenic Yes Mining, smelter
emissions (e.g.
Asarco), treated
wood, roofing
materials (Wood et al.
2012b, Norton et al.
2011).
Acute
mechanism not
well
understood in
fish (Wood
et al. 2012b).
Decreased growth rate,
possible reproductive
effects (Wood et al.
2012b).
Cadmium Yes Mining, smelting,
roofing materials
(Wood et al. 2012b,
Norton et al. 2011).
Ionic
imbalance,
respiratory
disturbance
(Wood et al.
2012b).
Ionic imbalance, oxidative
stress, possible
reproductive impairment
(Wood et al. 2012b).
Chromium Yes Pulp processing,
electroplating, and
products (e.g.,
stainless steel, spray
paint) (WDOH 2017).
Mucus
overproduction,
ionic
imbalance,
respiratory
disturbance
(Wood et al.
2012a).
Spinal deformities,
anemia, neurological
damage and possible
growth reduction (Wood
et al. 2012a).
Copper Yes Mining, pesticides,
fertilizers, brake pads,
boat paint, roofing
materials (Wood et al.
2012a, Norton et al.
2011).
Ionic
imbalance,
sensory
impairment,
reduced
swimming
speed (Wood
et al. 2012a).
Reproductive impairment,
general health decline
from detoxification
(elimination of toxins from
body), oxidative stress
(reactive oxygen damage
repair), sensory
impairment (smell and
lateral line), immune
suppression (documented
in Chinook salmon) (Wood
et al. 2012a).
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 11 January 2018
Contaminant Naturally
Occurring?
Common Non-
natural Sources
Symptoms
with Acute
Mortality
Primary Chronic
Exposure Effects
Lead Yes Ammunition, lead
shot, wheel weights,
fishing sinkers,
aviation fuel
combustion (Norton
et al. 2011).
Hypocalcemia
and ionic
imbalance
(Wood et al.
2012b).
Reproductive impairment,
general health decline
from detoxification
(elimination of toxins from
body), oxidative stress
(reactive oxygen damage
repair), sensory (smell and
lateral line) impairment,
immune suppression, and
mortality (Wood et al.
2012b).
Mercury Yes Thermostat and
fluorescent lamp
disposal, mining,
smelters,
industrial/commercial
emissions, petroleum
refineries (Wood et al.
2012b, Norton et al.
2011).
Breakdown of
neural
functions, and
other
physiological
issues (Wood
et al. 2012b).
Gonad growth impairment,
spawning inhibition,
reduced growth, gill
damage, ionic imbalance,
impaired digestion,
nerve/brain damage,
organ tissue damage
(Wood et al. 2012b).
Nickel Yes Stainless steel,
batteries, many
consumer products,
building materials,
inks/dyes,
electroplating,
medical equipment
(Wood et al. 2012a).
Loss of
magnesium
balance in
kidneys,
mortality
(Wood et al.
2012a).
Reduced egg hatchability,
organ tissue damage,
respiratory distress (Wood
et al. 2012a).
Selenium Yes Metals mining, fossil
fuel refinement and
use (EPA 2016).
Not seen in
environment
due to low
acute toxicity
(Wood et al.
2012a).
Developmental deformities
(Wood et al. 2012a).
Zinc Yes Mining, galvanized
steel and other metal
products, roofing
materials, tire wear
(Wood et al. 2012a,
Norton et al. 2011).
Calcium
imbalance and
mortality
(Wood et al.
2012a).
Calcium imbalance,
reduced growth, possible
reproductive impairment
(Wood et al. 2012a).
PCBs No Transformers, light
ballasts, recyclers,
paint, caulk, pigments
(Ecology 2015).
Can’t
accurately
assess due to
low solubility
(Stalling and
Mayer 1972.
Immune suppression
(Arkoosh et al. 2001),
reduced reproductive
success, mortality (Eisler
and Belisle 1996).
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 12 January 2018
Contaminant Naturally
Occurring?
Common Non-
natural Sources
Symptoms
with Acute
Mortality
Primary Chronic
Exposure Effects
PAHs Yes Wood smoke,
creosote-treated
wood, vehicle
emissions (Norton
et al. 2011).
Not fully
understood;
cardiotoxicity of
embryos
(Incardona and
Scholz 2005).
English sole: liver cancer
and other liver disease,
gonad development
failure, inhibited ovarian
development, reduced
spawning success,
disorientation, and
mortality.
Juvenile Chinook: reduced
growth, embryo
developmental
abnormalities,
cardiovascular problems,
and immune suppression
(Johnson et al. 2008).
PBDEs No Flame retardants on
plastics, upholstery
and foam (Ecology
2006).
Not applicable.
PBDEs are not
an acute
contaminant.
Endocrine disruption,
disease susceptibility
(Arkoosh et al. 2010).
3.2 Chemical Contaminants in Water Several studies have measured water chemistry in the Green River and Duwamish Estuary. Some of these studies have compared concentrations to Washington State water quality standards (WQS) for aquatic life. However, while the WQS are generally protective of 95% of aquatic species, and utilize salmonid data when available, they are not specific to Chinook salmon. Thus, WQS may be more or less protective of Chinook salmon. Therefore, these comparisons are general indications of water contamination. The results summarized below indicate which chemicals may potentially impact Chinook salmon in the Green-Duwamish watershed.
3.2.1 Duwamish Estuary From 2009 to 2011, Ecology measured pesticides (weekly from March to September) in several Western WA streams including one in the Green-Duwamish watershed: Longfellow Creek (Ecology 2013). Few pesticides were detected in Longfellow Creek, but herbicides were most common (dichlobenil, trichlopyr, 2,4-D). Concentrations were compared to WQS, pesticide registrations toxicity criteria, and EPA National Recommended Water Quality Criteria (EPA 2006) for aquatic life. Only methiocarb (insecticide) concentrations in some samples showed the potential to be sublethally toxic to invertebrates. The study concluded toxic impacts to invertebrates could have population-level effects and reduce food availability for juvenile salmon.
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 13 January 2018
3.2.2 Duwamish Estuary and Middle Green River King County reviewed available water concentration data in the Green River and Duwamish Estuary published between 2000 and 2013 (King County 2017a). Locations for these water data are in Figure 5, except for 5 stations sampled in the East Waterway (EW) in 2008/2009 (Windward 2009). See Windward (2009) or Appendix C of King County (2017) for the mapped locations of these EW stations. Some of these datasets go as far back as the 1970s (Table 2). All samples were collected by King County, Ecology, or the East Waterway Group. More than 150 samples were analyzed for metals and other chemicals. The Lower Duwamish, East, and West Waterway data were compared to marine acute and chronic criteria due to their estuarine salinity; the Green River data were compared to freshwater acute and chronic criteria. Five samples exceeded freshwater chronic aquatic life standard for one metal (total mercury) in the Green River (GR 11.1, GR 40.6, GR 63.1) (Figure 5; Table 3). One East Waterway sample also exceeded the chronic aquatic life standard for total mercury (at EW-SW-1). One East Waterway sample exceeded the chronic aquatic life standard for tributyltin (TBT) (at EW-SW-2). No other metals exceeded aquatic life criteria. Detected organic chemicals included triclopyr (pesticide), estrone, 4 nonylphenol, and bis(2-ethylhexyl)adipate (endocrine disruptors), PAHs, PCB congeners, one dichlorobenzene, aniline, benzoic acid, benzyl alcohol, caffeine, phenol, and N-nitrosodimethylamine. However, all of these chemicals were infrequently detected except for PAHs and PCBs. It should be noted that when analyzed by the most sensitive method, PCBs are usually detected at some level in ambient waters because they are a ubiquitous contaminant. For organic chemicals with aquatic life criteria, none were exceeded.
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 14 January 2018
Figure 5. Water chemistry stations reviewed by King County (2017a) except for East Waterway
Supplemental RI stations.
Water chemistry sampling locations, sample depths and years sampled from King
County (2017a)
Site ID
Station
Locator Agency Description River
Milea
Depths
Sampled
Years
Sampled
– EW -SW -1 EWG East Waterway – Between Terminal 102 and
104 – Above and
below 1 m 2008-2009
– EW -SW -1
Flood tide EWG East Waterway – Between Terminal 102 and
104 – Above and
below 1 m 2008-2009
– EW -SW -2 EWG East Waterway – Off Terminal 25 – Above and
below 1 m 2008-2009
–
EW -SW -2
Flood
Tide
EWG East Waterway – Off Terminal 25 – Above and
below 1 m 2008-2009
– EW -SW -3 EWG East Waterway – Slip 27 – Above and
below 1 m 2008-2009
– EW -SW -4 EWG Lower East Waterway – east side of channel;
moved to EW-SW-5 after Round 1 – Above and
below 1 m 2008
– EW -SW -5 EWG East Waterway – Slip 36; replaced EW-SW -4 – Above and
below 1 m 2008-2009
– EW -SW -6 EWG Lower East Waterway – middle of channel – Above and
below 1 m 2008-2009
– EW -SW -6
Flood tide EWG Lower East Waterway – middle of channel – Above 1 m 2008-2009
WW-a
lower LTKE03 King County West Waterway – Upstream of the Spokane
Street Bridge, middle of the channel – Below 1 m 2005–2013
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 15 January 2018
Site ID
Station
Locator Agency Description River
Milea
Depths
Sampled
Years
Sampled
WW-a
upper LTKE03 King County West Waterway – Upstream of the Spokane
Street Bridge, middle of the channel – Above 1 m 2005–2013
WW-b
lower 0305 King County West Waterway – Upstream of the Spokane
Street Bridge, on west side of channel – Below 1 m 1970–2004
WW-b
upper 0305 King County West Waterway – Upstream of the Spokane
Street Bridge, on west side of channel – Above 1 m 1970–2004
LDW -0.1 LTLF04 King County Lower Duwamish Waterway – At the south
end of Harbor Island 0.1 Above 1 m 2003–2004
LDW -3.0 LTTL02 King County Lower Duwamish Waterway – Duwamish
Waterway Park 3 Above 1 m 2007–2010
LDW-3.3
lower
0307,
LTUM03 King County Lower Duwamish Waterway – 16th Ave. S
Bridge 3.3 Below 1 m 1970–2013
LDW-3.3
upper
0307,
LTUM03 King County Lower Duwamish Waterway – 16th Ave. S
Bridge 3.3 Above 1 m 1970–2013
LDW -4.8 LTXQ01 King County Lower Duwamish Waterway – Upstream side
of Boeing pedestrian bridge, mid span 4.8 Above 1 m 2009–2013
DR-6.3 0309 King County Duwamish River – East Marginal Way Bridge
at S 115th Street 6.3 Above 1 m 1970–2008
DR-9.8 FL319 King County Duwamish River – Foster Links Golf Course,
downstream of confluence with Black River 9.8 Above 1 m 2011–2012
GR-11.1 3106,
A310 King County Lower Green River – Bridge at Fort Dent
Park upstream of Black River 11.1 Above 1 m 1970–2013
GR-11.6 0311,
09A080
King
County,
Ecology
Lower Green River – Renton Junction Bridge
on West Valley Road at Highway 1 11.6 Above 1 m 1970–2013
GR-32.8 A319 King County
Lower-Middle Green River – Bridge on SE
Auburn-Black Diamond Road, upstream of
Soos Creek
32.8 Above 1 m 1972–2012
GR-40.6 B319 King County Lower-Middle Green River – Bridge on 212th
Ave SE, upstream of Newaukum Creek 40.6 Above 1 m 1993–2013
GR-42.0 FG319 King County
Lower-Middle Green River– Bridge at SE
Flaming Geyser Road in Flaming Geyser
State Park
42 Above 1 m 2011–2012
GR-56.9 09A190 Ecology Upper-Middle Green River– Bridge on
Cumberland-Palmer Road at Kanaskat 56.9 Above 1 m 1977–2012
GR-63.1 E319 King County Upper-Middle Green River – Below Howard
A. Hanson Dam, at USGS gage 12105900 63.1 Above 1 m 2001–2003 a River miles conform to the convention used in the RI/FS for the Lower Duwamish Waterway Superfund site. The starting point of RM 0 is at the southern tip of Harbor Island (Windward 2010). EWG – East Waterway Group
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 16 January 2018
Summary of metals concentrations (mg/L) and WQS exceedances (bolded) in the
Lower Duwamish Waterway and Green River (From Table 3-43 of King County 2017a)
Analyte FOD Mean
Maximum
Detected Max MDL
Antimony 53/187 0.117 0.153 0.5
Arsenic 176/230 1.19 1.41 0.5
Cadmium 57/230 0.071 1.45 0.1
Chromium, total 153/238 0.85 10.8 0.79
Copper 172/233 1.44 2.94 0.4
Lead 26/230 0.0702 0.45 2.3
Mercury 49/195 0.00069 0.0058 0.2
Mercury, total 113/232 0.00501 0.0835** 0.2
Nickel 116/230 0.425 7.79 0.34
Selenium 56/189 0.188 0.38 1.5
Silver 4/226 0.0198 0.022 0.2
Zinc 161/240 6.16 16.9 0.5 Notes: Metals concentrations are in dissolved form unless noted.
** Exceeds freshwater (0.012) and marine (0.025) chronic aquatic life criteria FOD – frequency of detection (# samples detected/ total collected) MDL – method detection limit
3.2.3 Lower Green River The United States Geological Survey (USGS) sampled (Conn et al. 2015) whole and filtered water at Foster Links Golf Course RM 8 (same as station FL319 in Figure 6) during baseflow, storm flow and significant dam releases between November 2013 and March 2015. Composite samples were collected over 28 events and analyzed for metals, PAHs, PCBs, dioxins/furans, butyltins, volatiles and semivolatiles, and pesticides. Pesticides, butyltins, volatile and semivolatile chemicals were not detected except for methylene chloride and bis(2-ethylhexyl)phthalate (ubiquitous contaminants). Nine metals were frequently detected (>75% of samples). PAHs were infrequently detected and at low concentrations. PCBs and dioxins/furans were detected in most if not all samples. Concentrations were not compared to water quality standards. Chemical concentrations detected during storm events were consistently higher than at baseflow. Where detected, metals concentrations were higher during significant (>2000 cfs) Howard Hansen Dam releases compared to storm events. These dam releases send large water volumes from the Upper Green River downstream. Metals concentrations in unfiltered water samples generally increased with suspended sediment concentrations and were similar in filtered water samples across storms, significant dam releases, and baseline periods. These observations suggest that sediment-bound metals are more important than the dissolved fraction. The frequent detection of metals is not unusual given their natural occurrence. The most noteworthy findings of this study are the consistently higher chemical concentrations in storm events relative to baseflow and higher estimated chemical loads during significant dam releases relative to storm samples. The storm versus baseflow results align with similar studies in other areas of Puget Sound (King County 2013, Ecology and King County 2011) and suggest that stormwater contributes substantially greater contaminant loads
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 17 January 2018
than baseflow. Higher metals loads during significant dam releases relative to stormflow indicate that dam flow regulation plays an important role in controlling loading and exposure of juvenile Chinook salmon to metals. The higher sediment bound fraction indicates metals are being stored in sediments behind Howard Hansen Dam and these solids are occasionally released with large dam openings.
3.2.4 Lower and Middle Green River and Tributaries King County (2014a) evaluated water quality in the Lower and Middle Green River and 4 tributaries (Mill Creek in Auburn, Soos Creek, Black River and Newaukum Creek) (Figure 6). Significantly higher dissolved arsenic concentrations were measured in Mill Creek than in the mainstem at Flaming Geyser or Foster Links, or in Newaukum Creek during storm events. Concentrations of total PCBs and PAHs increased with distance downstream during storm events. Significantly higher total high molecular weight polycyclic aromatic hydrocarbon (HPAH) concentrations were detected in the Black River during storm events compared to the mainstem at Flaming Geyser or in Newaukum and Soos Creeks. Total PCB concentrations were highest in the Black River (at the Pump Station) compared to Mill, Newaukum and Soos Creeks and the two mainstem locations although differences were not statistically significant. All measured total PCB and arsenic concentrations were below the Washington State freshwater aquatic life WQS.
3.2.5 Middle and Upper Green River King County conducted a 2013 study of Middle and Upper Green River water quality (King County 2015) sampling between Kanaskat-Palmer and 20 miles upstream of the dam (Figure 7). Results showed water concentrations of arsenic increase with distance downstream during storm events. All measured arsenic concentrations were below the Washington State freshwater aquatic life WQS. Concentrations of total PCBs and PAHs increased during storm events with distance downstream. All measured total PCB concentrations were below the Washington State freshwater aquatic life WQS (there were no applicable aquatic life standards for PAHs at the time of the report).
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 19 January 2018
Figure 6. King County sampling stations in the Lower and Middle Green River (King County 2014a) AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 20 January 2018
Figure 7. King County sampling stations in the Middle and Upper Green River (King County 2014b) AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 21 January 2018
3.2.6 Duwamish-Green Sub-basins King County (2005) conducted an aquatic life screening risk assessment for the Green River in 2005 using existing metals and organic contaminant data collected by King County and USGS from 1999 through 2003. These data included a mix of grab and composite water samples collected from 67 stations during baseflow and storm flow spanning all sub-basins from the Duwamish Estuary to just below Howard Hansen Dam in the Upper Green (see Figure 3-1 http://your.kingcounty.gov/dnrp/library/2005/KCR1883.pdf). Chemical data were available for nutrients, metals and several organic chemicals (phenols, PAHs, PCBs, pesticides, and other volatile and semivolatile chemicals). Quartiles and 5th and 95th percentiles of resulting concentrations were compared to (in hierarchical order): Washington State WQS (WAC 173- 201A 2003 version), EPA National Recommended Water Quality Criteria (EPA 2002), an EPA toxicity database (AQUIRE) or other thresholds from the scientific literature. Of the 187 chemicals targeted, 127 were never detected in any water samples. For 10 chemicals, at least one sample exceeded the selected risk threshold, but most had low exceedances (percentile concentration/threshold ratios <2). It was concluded that metals and organic chemicals posed minimal risk to aquatic life.
3.3 Chemical Contaminants in Sediments Some contaminants in sediments have been demonstrated to cause toxic effects in fish. For example, Puget Sound sediments contaminated with PAHs have been linked to toxic effects in English sole, a benthic species (Johnson 2000). For salmon and other non-benthic species that occupy the water column, their direct sediment exposure is lower than a benthic species, but to what degree is uncertain. However, juvenile salmon sometimes consume benthic invertebrates which can increase their chemical exposure relative to planktonic prey. In addition, a decline in benthic populations due to contamination may theoretically decrease the food quantity or quality for juvenile salmon. Therefore, sediment contamination may directly or indirectly impact Chinook salmon. King County conducted a sediment chemistry study of the Green River (King County 2014b) and completed a review of all available watershed sediment chemistry data (King County 2017a). Sediment chemistry data were compared to Washington State Marine Sediment Management Standards (WAC 173-204-320), more specifically known as the Sediment Quality Standard (SQS) and the Cleanup Screening Level (CSL) (WAC 173-204-562). The SQS is a “no benthic effects” level while the CSL is a “minor benthic effects” level. The SQS is equivalent to a benthic sediment cleanup objective (SCO) used to develop a sediment quality goal for Washington State sediment cleanup sites. While there are no established freshwater sediment standards in Washington State, freshwater benthic cleanup levels, also referred to as SCO and CSL (WAC 173-204-563) have been developed. These standards and benthic cleanup levels were developed based on chemical concentrations that cause adverse effects to benthic invertebrates. Results of the King County (2017a) review do not reflect removal of contaminated sediments that has occurred from early action cleanups in the LDW.
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 22 January 2018
3.3.1 Duwamish Estuary King County (2017) summarized existing sediment data collected between 1991 and 2013, comparing sediment chemistry results for Duwamish Estuary (King County 2017a) to benthic sediment standards described above (SQS and CSL). Figure 8 shows where any chemical exceeded the SMS; the metals and key organic chemical exceedances are summarized below.
• All eight metals with benthic sediment standards exceeded the CSL in the East Waterway and LDW: arsenic, cadmium, chromium, copper, lead, mercury, silver, and zinc.
• The majority of the SMS exceedances were north of RM 1.3 in the LDW.
• Several metals exceeded the CSL at two additional locations in the LDW, the west inlet at RM 2.2 and south of the Jorgensen Forge cleanup area between RM 3.7 and RM 3.9.
• Cadmium exceeded the CSL approximately 50 m southwest of the Duwamish/Diagonal cleanup area and in the west inlet located at RM 2.2 in the LDW.
• Mercury was widely dispersed and exceeded the CSL throughout the East Waterway, in the LDW between RM 0.0 and RM 1.3 (exceedances detected between RM 0.2 and RM 0.6 and RM 0.9 and RM 1.2), throughout the west inlet of the LDW at RM 2.2, south of the Jorgensen Forge cleanup area (RM 3.7 to RM 3.9), and in the LDW near the head of Slip 6.
• The frequency of sediment standards exceedances was highest in the East Waterway and LDW for total PCBs and next highest for bis(2-ethylhexyl)phthalate. Exceedance of PAH sediment standards was frequent in the LDW and tended to be within 50 m of shore.
3.3.2 Green River King County (2014b) collected and analyzed sediment samples from 2008 to 2012 in tributaries of the Green River. Of 58 samples collected, 24 exceeded the no effects level (freshwater benthic SCO) for one or more contaminants including three metals (arsenic, nickel and cadmium), bis (2-ethylhexyl)phthalate, di-n-octylphthalate, and total PCBs (Figure 8). Bis (2-ethylhexyl)phthalate and arsenic were the two chemicals with the highest frequency of exceedance. Tributaries included Big Soos Creek, Covington Creek, Jenkins Creek, Newaukum Creek, Springbrook Creek, Mill Creek in Kent and Mill Creek in Auburn. Creeks located in the most urbanized areas (e.g., Mill in Kent and Springbrook) generally had a greater number of freshwater benthic SCO exceedances than the lesser developed creek basins. Four stations were located in the Green River mainstem but there were no exceedances of freshwater benthic SCO at these locations.
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 23 January 2018
Figure 8. Surface sediment stations (collected 1991-2013) with benthic exceedances along the
East, West, and Lower Duwamish waterways before EAA remediation actions. Original
Sources: AECOM 2012, Windward and Anchor QEA 2014, Urban Waters Initiative
(Ecology 2009), and PSEMP Database (Ecology 2015).
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 24 January 2018
Figure 9. Total PCB concentrations in Green River tributary and mainstem sediments (King
County 2014b).Two stations with highest concentrations exceed SCO.
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 25 January 2018
3.3.3 Early Action Areas in LDW Based on identification of highly contaminated areas during the first phase of the LDW RI, five Early Action Areas (EAA) were selected by EPA and Ecology for early cleanup. Together, cleanups at all five EAAs cover 29 acres and are expected to reduce the LDW area-weighted average surface sediment PCB concentration by approximately 50% (EPA 2014). The status of cleanup actions in these areas is summarized below. See Figure 5 for locations of each EAA.
Slip 4
• Approximately 10,000 cubic yards (cy) of PCB-contaminated sediments were dredged and 3.4 acres were capped with clean sand, gravel, and granular activated carbon amended filter material, during October 2011 through January 2012, by the City of Seattle (with participation by The Boeing Company) under an Administrative Settlement Agreement and Order on Consent (consent order) (Seattle 2015). Upland plantings were also completed in 2012. A net gain of 1.1 acres of intertidal, shallow subtidal and riparian habitat resulted.
• Dredging and capping was monitored with one brief exceedance of the turbidity standard during placement of clean cap sand. The City of Seattle has been monitoring the cap and documented recontamination (exceedance of SMS) with PCBs in Years 1 and 3 (Seattle 2015). In-water construction activities in Year 3 may have influenced the surface sediments on the cap (pers. comm. Schuchardt 2017). Year 4 monitoring was completed, but did not include sediment chemistry (Seattle 2016).
Terminal 117
• Cleanup was performed by City of Seattle and Port of Seattle (Port of Seattle project website http://t117.com). The Port of Seattle work was completed in 2015 and included dredging of 8,000 cy of sediment followed by backfill with clean sand, and removal of 36,000 cy of upland and bank soil (AECOM 2016). As source control actions, the City of Seattle completed cleaning of residential yards in 2013 and finished cleaning adjacent streets and stormwater infrastructure construction in 2016. A monitoring and maintenance plan is currently being developed with EPA. Habitat restoration is planned to occur in 2018 (pers. comm. Florer 2017).
Boeing Plant 2/Jorgensen Forge (Across from Terminal 117)
• The Boeing Company initiated cleanup of river sediment and the shoreline of Boeing Plant 2 in 2013. Substantial upland source control actions were completed before 2013, including building structure removal, joint compound replacement, storm drain cleaning and installation of stormwater treatment systems (pers. comm. Anderson 2017). 163,000 cy of sediment was dredged (and backfilled with clean sediment) from the nearly 1-mile-long property footprint (Amec Foster Wheeler et al. 2016). Shoreline soils impacted by organic chemicals were removed and replaced with salmon habitat features including riparian and intertidal plants, along
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 26 January 2018
with large woody debris features (Amec Foster Wheeler 2014). The project was completed in 2015.
• The Boeing Company has completed the first year post-remediation monitoring data report (Amec et al. 2016). Concentrations of all metals and organic chemicals including PCBs were below the no effect threshold (SQS). As expected, deposition of sediments is occurring on the surface of the clean backfill; 22 of 40 samples showed increases in PCB concentrations after one year. http://www.boeing.com/resources/boeingdotcom/principles/environment/pdf/duwamish_backgrounder.pdf
• The Jorgensen Forge site is adjacent to Boeing Plant 2. In 2014, in-water sediments were dredged and bank material was removed and backfilled with clean materials. Several rounds of post-cleanup surface and subsurface sediment sampling have documented sediment PCB concentrations above cleanup levels (>SQS). EPA and Earle M. Jorgensen are currently negotiating an amendment to the Agreed Order to establish how remaining contamination will be addressed (Chu, pers. comm. 2017).
Diagonal CSO/Storm Drain
• King County remediated 7 acres by dredging and capping in 2003/2004 (EBDRP 2015); a total of 68,000 cy of contaminated sediment was removed. Contamination of the surrounding sediments after dredging resulted in placement of a thin layer of clean sand, called an enhanced natural recovery (ENR) area, in 2005, to reduce contaminant concentrations in surface sediments.
• King County monitored the site and the surrounding sediments pre- and post-remediation through 2012. The largest storm drain to the LDW discharges to this area, in addition to City of Seattle and King County CSOs; sediment concentrations near the outfall have varied over time. Sediment PCB concentrations in a portion of the capped area remain consistently low. However, concentrations in other portions of the capped area are variable year-to-year and sometimes exceed the PCB marine SQS. The area-wide mean PCB concentration across remediated areas was 61 µg/Kg dw in 2010 falling within an anthropogenic background concentration for urban areas of 40-90 µg/Kg dw calculated in the LDW FS (AECOM 2012). PCB concentrations in the ENR area have been consistently low. Monitoring reports can be found here: http://www.kingcounty.gov/services/environment/wastewater/sediment-management/projects/DuDi.aspx
Norfolk CSO
• King County completed cleanup in the river at Norfolk CSO in 1999 including dredging 5,190 cubic yards of sediment and backfilling with clean sediment. Sediment monitoring of the cleanup area was conducted for 5 years (project website: http://www.kingcounty.gov/services/environment/wastewater/sediment-management/projects/Norfolk.aspx ).
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 27 January 2018
• Monitoring in the early years identified the adjacent Boeing site storm drain as a source of PCBs to the Norfolk site (EBDRP 2005). The Boeing Company conducted dredging in 2003 to remediate this area. They also conducted source tracing and added treatment to the storm drain. After the last year of monitoring in 2004, two PAH compounds and PCBs were identified as chemicals at the Norfolk site that exceeded SQS. Monitoring Reports can be found here: http://www.kingcounty.gov/services/environment/wastewater/sediment-management/projects/Norfolk.aspx Natural background for total PCBs in Puget Sound sediments is 2 ug/Kg dw and is based on concentrations in areas without influence of local human activity. This is also the total PCB cleanup level established by EPA for the LDW. Figure 10 is an updated map of benthic exceedances in the LDW with outdated EAA area data removed. Benthic SMS exceedances by any chemical are most numerous and widespread below RM 2.9. Above RM 2.9, benthic SMS exceedances are generally clustered around RM 3.7-4.2 and RM 4.8-5.0 and exceedances of only the SQS are scattered in between.
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 28 January 2018
Figure 10. Updated map of SMS exceedances for the LDW surface sediments in non-remediated
areas (Windward unpublished; Data through 2010).
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 29 January 2018
3.4 Benthic Community Health Assessment As mentioned earlier, Chinook salmon can be exposed to contaminated sediments by direct ingestion, direct contact, or eating contaminated food, such as benthic invertebrates. In addition, the adverse effects of chemical contaminants on the benthic community can theoretically reduce the quantity or quality of food for fish like juvenile salmon. However, studies were not identified in the Green-Duwamish watershed that examine potential effects of benthic community reductions on fish diets or health. Studies that have sampled benthic community 2 taxonomic composition and tested sediments for chemistry and toxicity to benthic invertebrates are summarized here. Only studies that cover the Duwamish Estuary were located.
• Taylor et al. (1999, as cited in Windward and Anchor QEA 2014) characterized epibenthic invertebrate taxa residing in intertidal habitat of the lower 2 miles of the Duwamish Estuary including East Waterway. At the three intertidal areas sampled, most taxa were identified as potential salmon prey.
• Benthic community sampling was conducted in the 1990’s at Kellogg Island, Duwamish/Diagonal CSO-storm drain, and the LDW Turning Basin. Areas of Kellogg Island demonstrated high abundance and species diversity relative to the Turning Basin and the Duwamish/Diagonal CSO-storm drain sites (Cordell et al. 1994 and 1996, Parametrix and King County 1999). The area sampled at Duwamish/Diagonal has since been remediated (see Section 3.3.3), but benthic community sampling was not part of the post-remediation monitoring activities.
• Paired sediment chemistry and benthic invertebrate toxicity testing were completed for the East Waterway RI (Windward and Anchor QEA 2014). Comparison of chemistry and toxicity test results to SMS indicated that approximately 21% of the EW area likely cause adverse effects to benthic invertebrates. Potential minimal adverse effects were indicated for 39% of the area and no adverse effects were indicated in approximately 40% of the EW area.
• The East Waterway RI also assessed risk to benthic invertebrates by measuring chemical concentrations in tissues and comparing them to effect concentrations. Adverse effects for benthic invertebrates were indicated for TBT in 2 of 12 areas sampled and potential minor adverse effects were indicated for total PCBs in 10 of 13 areas sampled.
• The East Waterway RI also examined volatile chemicals by comparing porewater chemistry data to effects concentrations. Napthalene was identified as likely causing adverse effects to benthic invertebrates in one location. No other volatile chemicals were concluded to present risk of adverse effects. 2 Benthic community assessments for contaminants have a different purpose than sampling for and calculation of the Benthic Index for Biotic Integrity (BIBI) (Karr 1998; Fore et al. 2001, Karr & Chu 1999, Kleindl 1995, Morley & Karr 2002). The BIBI is a biological indicator of stream condition integrating multiple stressors of chemical and non-chemical pollution, hydrologic conditions, and physical habitat characteristics. Contaminant assessments of benthic community health are more specific to contaminant effects and involve measurement of sediment chemistry, benthic invertebrate community taxonomic analysis, and/or sediment bioassays.
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 30 January 2018
• Toxicity tests on benthic invertebrates in the LDW (Windward 2010) resulted in 30 of 48 samples that failed the SQS criteria for toxicity. Comparison of sediment chemistry and toxicity test results to SMS indicated (see Map 4-16 in RI for SMS results):
o no adverse effects to benthic invertebrates were expected in 75% of the LDW area,
o adverse effects are likely in 7%3 of the LDW area, and
o adverse effects are uncertain in 18% of the LDW area.
• The LDW RI also examined volatile chemicals by comparing porewater chemistry data to effects concentrations. Cis-1,2-dichloroethane was identified as potentially causing adverse effects to benthic invertebrates in one location. No other volatile chemicals were concluded to present risks of adverse effects in porewater.
3.5 Chemical contaminants in Chinook Salmon and
their Diet Chinook salmon tissue chemistry data has been collected by Washington Department of Fish and Wildlife (WDFW) (O’Neill et al. 2015), by Nelson et al. (2013) as part of the Juvenile Salmon Survival Study, and by the LDW Group and EW Group as part of Superfund RIs (Windward 2010, Windward and Anchor QEA 2014). Assessment of adverse effects on fish can be conducted using whole body tissue, bile or other organ chemistry, stomach content chemistry, toxicity tests and/or biomarkers that indicate exposure. Some chemicals do not bioaccumulate because they are metabolized or otherwise broken down in fish. For example, it is inappropriate to assess risk to fish from parent PAHs based on fish tissue concentrations because these chemicals are quickly metabolized resulting in tissue concentrations that do not reflect exposure (Johnson et al. 2008). Exposure to PAHs is more accurately assessed by measuring PAH metabolites in liver bile or PAHs in stomach contents. The WDFW and King County Chinook tissue and the LDW and EW Chinook tissue chemistry results are summarized here. All fish tissue concentrations are based on wet weight.
• Juvenile Chinook salmon appear to be exposed to significantly more copper and lead in the Duwamish Estuary than those in the Nisqually, Skagit and Snohomish River systems as reflected by gill concentrations (O’Neill et al. 2015). However, this study could not differentiate Duwamish Estuary from upstream exposure in the Green River. Gill tissue concentrations are indicative of the water exposure pathway. Cadmium and nickel concentrations in LDW Chinook gills were not significantly different compared to the other river systems sampled. Zinc levels in LDW Chinook gills were lower than those from the other three major river systems in Puget Sound.
• Juvenile Chinook salmon wholebody concentrations suggest that more of their PCB and DDT burden is contributed from the Duwamish Estuary and/or Elliott Bay than 3 The sediment assessment was updated with more recent data in the LDW FS, resulting in a lower area of 4% with likely adverse effects.
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 31 January 2018
from Puget Sound (O’Neill et al. 2015). Juvenile Chinook from offshore locations in Puget Sound (>0.5 km from shore in Whidbey Basin and south) had significantly lower concentrations of PCBs and DDTs than the LDW or Elliott Bay locations. However, PCB concentrations in Chinook salmon collected from nearshore Elliott Bay were higher than in fish from the Duwamish Estuary. The average total PAH concentrations of juvenile Chinook stomach contents were significantly higher in the LDW and Elliott Bay than in the Skagit or Nisqually River systems.
• Nelson et al. (2013) summarized a 2003 juvenile Chinook sampling effort in the Duwamish Estuary, Lower and Middle Green rivers and Elliott Bay. Twenty six composite samples each containing 6 to 32 subyearling Chinook salmon were analyzed for PCBs and mercury. Hatchery and wild fish were identified and sorted before compositing and analyzed separately. Average PCB levels in hatchery fingerlings from the Duwamish Estuary (29 µg/Kg) were less than half the levels in wild fingerlings (77 µg/Kg). Average PCB levels in Elliott Bay wild (27 µg/Kg) and hatchery Chinook salmon (25 µg/Kg) were similar to each other and slightly higher than Lower Green River wild (14 µg/Kg) and hatchery fish (15 µg/Kg). In theory, the longer residence time of wild Chinook salmon in the Duwamish Estuary may increase their bioaccumulation of PCBs relative to hatchery Chinook salmon. The PCB levels across all samples of wild Chinook salmon from the Duwamish Estuary were highly variable (7.4 to 225 µg/Kg). Mercury levels in juvenile Chinook were low and did not vary by sampling location or fish origin.
• King County (2017a) reviewed all fish and shellfish tissue data used in the LDW and EW RI’s and summarized tissue data for PCBs in juvenile Chinook salmon and other fish. These data were collected in the Green-Duwamish watershed from 1998 to 2007. Whole wild and hatchery juvenile Chinook salmon collected from East Waterway (12 composite samples) and LDW (24 composite samples) contained variable levels of PCBs with an average concentration up to 50 times lower than in adult English sole, the fish species measured with the highest PCB concentrations (Table 4). English sole fillet samples contain lower concentrations than wholebody samples; this is due to preferential partitioning into fatty tissues. Chinook tissue were also analyzed for pesticides and TBT. TBT was not detected in juvenile Chinook. These tissue chemistry data were used to inform the LDW and EW ecological risk assessments. See Section 3.6 for LDW and EW Chinook salmon risk assessment results.
Total PCB concentrations (µg/Kg wet) in juvenile Chinook salmon relative to English
Sole in the East Waterway and LDW (King County 2017a).
Fish Species Tissue Type FOD Minimum Maximum Mean
East Waterway
English sole Fish whole body 13/13 1,460 7,900 J 3,200
English sole Fish fillet (with skin) 20/20 409 5,700 1,700
Juvenile Chinook salmon Fish whole body 12/12 7.4 91.5 59
Lower Duwamish Waterway
Juvenile Chinook salmon Fish whole body 24/24 6.9 1,200 140 FOD – frequency of detection (# samples detected/ # analyzed)
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 32 January 2018
• O’Neill et al. (2015) measured PCBs, PAHs, and PBDEs in composite samples of juvenile Chinook stomach contents. One sample was collected in the LDW estuary, two from nearshore (Elliott Bay) and one from offshore (Puget Sound). The authors estimated dietary effects thresholds of 3,800 ng PAHs/g for altered growth and 12,200 ng PAHs/g for altered growth and plasma chemistry based on Meador et al. (2006). The single Chinook stomach content sample collected in the Duwamish Estuary did not exceed the effect thresholds for PAHs. One of two stomach content samples collected in Elliott Bay exceeded the PAH threshold.
• O’Neill et al. (2015) calculated PBDEs effects ranges for increased disease susceptibility (greater than or equal to 470 to 2,500 ng/g lipid) and for altered thyroid hormone levels (greater than or equal to 1,492 to 2,500 ng/g lipid) in whole juvenile Chinook based on Arkoosh et al. (2013) and Arkoosh et al. (2010). None of the Duwamish Estuary juvenile Chinook tissue samples exceeded either threshold. One of 10 samples in Elliott Bay exceeded the PBDE effects threshold.
• From 1996 through 2001, Johnson et al. (2007) measured PCBs, DDTs, and PAHs in juvenile Chinook in the Duwamish Estuary (1998 and 1999 only) and other estuaries of Puget Sound. Results show increased exposure in the Duwamish compared to Puget Sound. PAH metabolites were also higher in Duwamish juvenile Chinook than any of the other 5 estuaries sampled on Washington’s coast (Skokomish, Nisqually, Grays Harbor, Willapa Bay). PAH metabolites may be relatively higher in the Duwamish Estuary due to urban development. It is important to note that chemicals of emerging concern (CECs) have been detected in Puget Sound (Miller-Schultze et al. 2014) and waters of the Duwamish Estuary (King County 2017b). The definition of CECs varies, but EPA defines them as “chemicals and other substances that have no regulatory standard, have been recently ‘discovered’ in natural streams (often because of improved analytical chemistry detection levels), and potentially cause deleterious effects in aquatic life at environmentally relevant concentrations” (EPA 2008). Hormones, pharmaceuticals and personal care products (PPCPs), and industrial process chemicals are examples of CECs and are rarely targeted in environmental surveys. Yet, many of them have been documented as endocrine system disruptors in fish. Available information on CECs as pollutants in the Greater Puget Sound is limited to source pathways (e.g. wastewater), ambient surface waters, sediments, and invertebrate and fish tissue chemistry concentrations. A recent study of CECs by King County (2017b) found 17 of 130 CECs were detected in surface waters of the Duwamish Estuary (4 stations sampled). The first and only survey of pharmaceuticals and personal care products (PPCPs) in Puget Sound Region wholebody fish tissue detected several (37 of 150) of these chemicals in juvenile Chinook salmon (Meador et al. 2016). Meador et al. (2016) detected more PPCPs in juvenile Chinook salmon than in staghorn sculpin in the areas sampled: Sinclair Inlet, Puyallup Estuary, and Nisqually Estuary. These data suggest preferential bioaccumulation of CECs in juvenile Chinook salmon. The reasons for this are unknown but could be related to differences in prey, habitat, life stage, and/or metabolic processes.
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 33 January 2018
3.6 Modeled and Observed Adverse Effects on
Chinook Ecological risk assessments conducted under Superfund have estimated the likelihood that contaminants in the LDW and EW would cause adverse effects to juvenile Chinook salmon using a standard and simple model of exposure and effects. These models consider effects that directly influence mortality and growth. In addition to the risk assessments, several field and laboratory studies have investigated adverse effects of contaminants in juvenile Chinook or juvenile coho salmon. Findings of these studies are summarized below.
3.6.1 Modeled adverse effects An ecological risk assessment was conducted for both the LDW and EW RIs. In these assessments, risks to juvenile Chinook salmon from contamination in the waterways were evaluated (Windward 2007; Windward and Anchor QEA 2014). The LDW and EW risk assessments determined that the direct water contact and dietary exposure pathways were the greatest exposure pathways to juvenile Chinook salmon (Figure 11). The LDW ecological risk assessment concluded that cadmium, arsenic, copper, and vanadium in juvenile Chinook salmon food pose low risk of adverse effects on survival or growth; effects levels were not exceeded but no-effects levels were exceeded. These four metals are not bioaccumulative. Other chemicals, such as PCBs and PAHs, were determined not to pose risk of impaired growth or survival to juvenile Chinook based on a screening step that uses conservative (i.e., high) exposure assumptions and no-effect thresholds (Windward 2007). The risk assessment included an uncertainty assessment, which acknowledged reduced immunocompetence may occur in juvenile salmonids migrating through the LDW. However, this risk assessment was not able to determine if a particular contaminant was the cause of the immunocompetence effect observed in the field. Similar to the LDW assessment, the EW ecological risk assessment concluded adverse effects to juvenile Chinook salmon growth and survival were unlikely from arsenic, mercury and TBT in surface water and were at low risk in their diet from cadmium, chromium, copper, and vanadium. Risks from cobalt, nickel, and dibenzofuran were concluded to be unknown because there was not sufficient toxicity information to assess them. Other chemicals, such as PCBs and PAHs, were determined not to pose risk of impaired growth or survival to juvenile Chinook (the same methodology discussed above for the LDW Ecological Risk Assessment was used) (Windward 2012).
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 34 January 2018
Figure 11. Conceptual Site Model and Pathways for Juvenile Chinook from LDW Baseline Risk
Assessment (Windward 2007) Some effect thresholds have been calculated for juvenile Chinook salmon for purposes of comparison with PCB, PBDE, and PAH tissue concentrations. Although not an established tissue standard, Meador et al. (2002) statistically derived a lipid-normalized tissue effects threshold in juvenile Chinook for PCBs of 2400 ug/Kg lipid based on biochemical and immune system effects. This threshold was exceeded by juvenile Chinook sampled in the Duwamish Estuary in 1998 and 1999 (Johnson et al. 2007). More recently, in 2013, 25% (1 of 4) of juvenile Chinook samples from the Green-Duwamish watershed exceeded this effects threshold (O’Neill et al. 2015).
3.6.2 Observed Adverse Effects Juvenile Chinook salmon from the Duwamish Estuary have been observed with immunosuppression, reduced resistance to disease and decreased growth rates (Arkoosh et al. 2001, Johnson et al. 2008). It is uncertain if these changes were caused by an individual contaminant (e.g. PAHs) or a mixture. The observed biochemical changes do not indicate adverse health effects by themselves (Johnson et al. 2007). A type of pre-spawn mortality observed in coho is linked to stormwater and has been documented in small tributaries of the Green River and Duwamish Estuary where Chinook salmon are not found. There is a specific suite of pre-spawn mortality symptoms which
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 35 January 2018
result in mortality of male and female coho before spawning. This is an acute mortality event associated with storm events and the cause is currently suspected to be chemical(s) in vehicle tires (Du et al. 2017). Local researchers have demonstrated that the symptoms are induced by urban stormwater runoff (Scholz et al. 2011, Spromberg et al. 2015, McIntyre et al. 2016) and eliminated by stormwater infiltration through bioretention soils (McIntyre et al. 2016). This phenomenon has not been observed in other co-occurring salmonids (e.g. chum). Local studies have demonstrated that urban highway stormwater runoff induces cardiotoxicity, reproductive effects and mortality in juvenile coho and other, non-salmonid fish (McIntyre et al. 2015, McIntyre et al. 2014) which can be eliminated by infiltration through bioretention soils (McIntyre et al. 2015, McIntyre et al. 2016). Chinook salmon is not a species that has been tested; thus, it is uncertain how they are affected. These studies indicate that stormwater runoff is potentially toxic to Chinook salmon in streams. The absence of impact to chum salmon also demonstrates how one salmon species can be much more sensitive to chemical contaminants than others. Meador (2014) analyzed Puget Sound coho and Chinook salmon hatchery release and return data to compare smolt-to-adult return rates (SAR) in contaminated and uncontaminated estuaries. Ten hatcheries located upstream of contaminated estuaries and 12 located upstream of uncontaminated estuaries were identified for this study. Three of the selected hatcheries (Soos, Crisp and Keta creeks) are located in the Green-Duwamish watershed. The Duwamish Estuary was categorized as a contaminated estuary. Thirty eight years of hatchery SAR data (1972–2008) were statistically compared for Chinook and coho grouped across years and year-by-year. A significantly lower SAR (45% lower) was calculated for Chinook from contaminated compared to uncontaminated estuaries across all years or year-by-year; these statistical differences in SAT were not found for coho in the same estuaries.
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 36 January 2018
4.0 CURRENT AND FUTURE ACTIONS Several ongoing programs and projects are planning actions in the Green-Duwamish watershed which may provide additional contaminant information relevant to Chinook salmon and/or may influence contaminant concentrations. Perhaps the two largest activities that will improve Duwamish waterway conditions are the LDW and EW sediment cleanups. The LDW cleanup plan will addresses 412 acres of contaminated sediment through a combination of active remediation and monitored natural attenuation. The EW cleanup plan is anticipated to be issued by EPA in the next year, which is expected to include remediation of a large portion of the EW. In addition to the LDW cleanup, King County and the City of Seattle’s Our Green/Duwamish Program and Ecology’s Pollutant Loading Assessment are developing tools and strategies to address water quality in the Green-Duwamish watershed.
4.1.1 The LDW Superfund Cleanup EPA’s Record of Decision contains the LDW cleanup plan (i.e. Selected Remedy) which includes the following actions (EPA 2014).
•105 acres of dredging or partial dredging and capping;
•24 acres of capping;
•48 acres of enhanced natural remediation (placing clean sand to speed up the rate ofnatural recovery; and
•235 acres of monitored natural attenuationFigure 12 illustrates the geographic areas where each type of activity will occur in the LDW. These actions in combination with EAA cleanups are predicted to reduce PCB contaminant concentrations by 90% or more in sediment, fish, and shellfish. The cleanup is estimated to require 7 years of construction to complete followed by 10 more years for monitored natural recovery. Currently, the LDW Group (City of Seattle, King County, Port of Seattle, and the Boeing Company) and EPA are conducting pre-design studies which include:
•Collection of water, sediment, and biota data to establish baseline conditions priorto the sediment cleanup;
•A survey of waterway users to understand how this may affect sediment transportand remediation technology selections (e.g., current and anticipated tug and bargeactivities in the LDW);
•Documentation of piers and other structures that may affect remediation design;and
•Collection of supplemental sediment and bank data to assist Ecology with sourcecontrol.
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 37 January 2018
Figure 12. Remedial Actions in the EPA Selected Remedy for the LDW (EPA 2014)
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 38 January 2018
Collection of new water, sediment, and biota data will provide more current contaminant data that could be used to update the information on Chinook salmon exposure levels provided in this report. The next step in the cleanup process will be remedial design sampling and engineering plans for the cleanup construction activities followed by the construction and long-term monitoring.
4.1.2 The EW Superfund Cleanup The FS for the EW is currently being completed. The FS develops a range of remedial alternatives to clean up contaminated sediments and provides relative rankings for each based on various Superfund cleanup criteria (e.g., long-term effectiveness, short-term impacts, and implementability). EPA will then develop a proposed plan for sediment cleanup and after a public comment period, EPA will then issue a Record of Decision outlining the selected remedy for cleaning up contaminated sediments in EW. The Proposed Plan is expected to be issued in 2018.
4.1.3 Our Green/Duwamish This project was initiated by King County and City of Seattle. The purpose is to develop a strategy to coordinate the many different efforts in the Green-Duwamish watershed with the objective of protecting and restoring its air, land, and waters (https://ourgreenduwamish.com/). An inventory of projects and programs (Phase I) was conducted in 2015. Workshops were held in 2016 and an initial Watershed Strategy was completed in 2017. The priority topics needing more work were identified as stormwater, open space, climate change, and air quality. Recommendations for actions for each of these topics were made, with the most attention focused on stormwater. Our Green/Duwamish will be developing a final strategy and implementation plan for additional stormwater control in the watershed.
4.1.4 Green-Duwamish Pollutant Loading Assessment Ecology and EPA are leading the Pollutant Loading Assessment (PLA) for the Green-Duwamish watershed which began in 2012 (Ecology Focus Sheet 2014; https://fortress.wa.gov/ecy/publications/SummaryPages/1410053.html ). This project is intended to provide information useful for addressing water quality issues in the watershed that will remain after the LDW Superfund Site cleanup. Clean Water Act violations and contaminated water upstream of the LDW are projected to persist after cleanup is completed. Therefore, EPA and Ecology are working with technical experts and stakeholders in the region to develop models that can:
•Develop a modeling tool to assess pollutant loads from different sources (point anddiffused)
•Better understand the relationship between water, sediment and fish tissue quality
•Predict improvements in water, sediment and tissue quality expected to occur as aresult of management actions
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 39 January 2018
This effort will occur in phases over several years. As of early 2017, a modeling project plan has been completed (TetraTech 2016) and the watershed model is in development (TetraTech 2017).
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green‐Duwamish Watershed
King County Science and Technical Support Section 40 January 2018
5.0 UNCERTAINTY
This section discusses key types of uncertainty associated with the information presented
in this document. Measurement uncertainty is associated with data/sample collection
methods and analysis for any field or laboratory study conducted. Results of desktop
statistical analyses and modeling studies (e.g., ecological risk assessments) also have an
inherent quantifiable error. This document does not evaluate each study presented here for
these data quality uncertainties. Instead, it evaluates the collective knowledge uncertainty
in relation to this document’s objective: to assess whether there is evidence that Chinook
salmon health is or is not adversely impacted from contamination in the Green‐Duwamish
watershed. The primary sources of uncertainty discussed are data quantity (completeness
of spatial coverage, number, and representativeness of samples) and Chinook salmon
effects assessment methods (effect threshold development/selection and endpoints
evaluated).
5.1 Data Quantity
When considering sample density, the majority of information gathered to characterize
contamination in the Green‐Duwamish watershed has been on sediment chemistry and
benthic invertebrate community health within the Duwamish Estuary. Sediment and
benthic community health data are available at lower densities for the Green River
subbasins. These contaminant data are helpful in describing exposure of juvenile Chinook
salmon to contamination via their diet (benthic invertebrates), direct sediment contact, and
incidental sediment ingestion. The benthic community assessments are also helpful in
describing if there might be a reduction in benthic invertebrate food for Chinook salmon
from contaminant impacts. Collection of water chemistry data has been very limited in
scope and frequency throughout the watershed. The existing data provide some confidence
that contaminant exposure to juvenile Chinook or other aquatic life is not a substantive
chronic problem, but little certainty that acute or chronic exposures are not problematic
under certain flow conditions and/or in some tributaries.
Since 2000, 66 juvenile Chinook salmon composite tissue samples have been processed and
analyzed for the studies reviewed in this report; however, all but 4 of these were sampled
more than 10 years ago. With several Lower Duwamish remediation projects completed
during this time, these older data may represent higher exposures than current conditions.
Most of the available juvenile Chinook tissue chemistry data are from the Duwamish
Estuary where chemical risk is likely highest.
It is most efficient to remain focused on evaluation of Chinook salmon impacts from toxic
contaminants in the Estuary before evaluating Chinook upstream. The overall higher
spatial density of environmental data from the Duwamish Estuary likely represents the
highest risk exposure scenario given this areas’ more industrialized land use history
compared to any area of the Green River. However, there may be more localized, small
scale, but relatively contaminated sediments in some areas of the Green watershed that
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 41 January 2018
have not been identified to date. This seems unlikely but possible given the limited sampling conducted in this relatively large watershed.
5.2 Chinook Effects Assessment Methods
5.2.1 Effect Thresholds Several studies reviewed here have compared contaminant concentrations to WA state standards (e.g., WQS, SMS). The WQS were developed to be protective of aquatic life while the marine sediment standards and freshwater and marine benthic cleanup standards were developed to protect benthic invertebrates. The WA state WQS and SMS were derived using effect thresholds for many different species. However, Washington State WQS (last issued in 2006) have not kept pace with EPA’s updates in criteria. For example, the freshwater copper WQS is still calculated based only on hardness whereas EPA has updated their freshwater acute and chronic aquatic life copper criteria to account for the influence of dissolved organic carbon concentrations (i.e., using the Biotic Ligand Model). It is unknown how well WQS protects Chinook salmon absent incorporation of modern toxicity information into the WQS. Because they protect benthic invertebrates, the sediment standards do not include any fish toxicity data. Therefore, studies summarized in this report comparing sediment chemistry to SMS reflect how contaminants may impact the health of benthic invertebrate populations, an important food source for juvenile Chinook. However, these data are not directly relevant for evaluating adverse impacts of contaminants on Chinook health. More meaningful are the Chinook tissue data and measures of chemical effect. However, many sources of uncertainty present themselves in the interpretation of these data. There are no existing Washington State (or federal) regulatory standards for tissue concentrations that are protective of fish (some exist for protection of human health or wildlife). Therefore, effect thresholds for fish tissue assessments require project-specific derivation and these efforts can result in very different threshold values for the same contaminant and species of interest. This is partially because of uncertainties in the many assumptions required to identify an effect threshold. For example, the LDW screening ecological risk assessment (Windward 2007) used the highest no-effect thresholds from published studies compared to the maximum measured chemical concentrations in juvenile salmon. The intent for the risk assessment thresholds was to estimate a value below which adverse effects to Chinook salmon would not occur. The final selected threshold for PCBs was 27,000 ug/Kg tissue wet weight based on mortality in spot fish. During the EW risk assessment screening, a lower effect threshold for PCBs was identified (1,400 µg/Kg) based on survival of pinfish4. Criteria leading to these threshold selections were defined based on several assumptions, such as that growth and mortality effects are protective but reproductive effects do not need consideration because juvenile salmon do not grow to reproductive age in the LDW or EW. Other examples of assumptions included:
4 The 1,400 µg/Kg no effect level was based on applying an uncertainty factor of 10 to an observed adverse effects level of 14,000 µg/Kg ww in pinfish (Hansen et al 1971).
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 42 January 2018
•Only used tissue concentrations provided in study; none were estimated,
•effects study data on any fish species can be considered, not just salmonids orChinook,
•the highest qualifying no-effect concentration below the lowest qualifying effectconcentration should be used for endangered species assessment,
•and effect and no-effect concentrations should be in wet weight, not lipidnormalized.The rationale for the appropriateness of these and other assumptions is provided in the LDW and EW ecological risk assessments (Windward 2007, 2012) and is not the subject of discussion here. In comparison, Meador et al. (2002) estimated a PCB Chinook salmon tissue effects threshold for sublethal effects using different assumptions that resulted in 2.4 µg/g lipid, equivalent to approximately 144 µg/Kg tissue wet weight (assuming 6% lipid). Criteria leading to this threshold selection were defined based on assumptions such as the 10th percentile concentration of biological effect studies is protective of individual Chinook salmon. Other example assumptions used by Meador et al. (2002) included:
•that 75% of an injected Aroclor PCB dose or 50% of ingested food dose isadsorbed into body tissues (used to estimate tissue concentrations frominjection or food exposures if not reported),
•only salmonid species effects studies should be used to calculate an effectsthreshold,
•a PCB effect concentration should be lipid normalized before evaluation,
•lipid content, to allow lipid-normalization, was estimated from the literature fordifferent Chinook salmon lifestages (adult, fry and juvenile),
•and immune system/biochemical effects should be considered, but mortalityand growth effects excluded.Several other assumptions are described in Meador et al. (2002). These three different PCB effect thresholds (27,000 µg/Kg, 1,400 µg/Kg and 140 µg/Kg) were generated using different assumptions including different target endpoints (growth and survival versus biochemical changes). Biochemical endpoints are more sensitive and provide additional protection than other endpoints, but their link to individual health and survival is more tenuous than growth, reproduction, and survival endpoints. In this comparison, the no-effect thresholds (27,000 and 1,400 µg PCBs/Kg) are much higher than the effect threshold (144 µg PCBs/Kg); the largest difference is two orders of magnitude. This comparison highlights one reason tissue effect thresholds are highly uncertain and can result in different conclusions regarding the potential risk of effects. The quantity of available exposure and effect studies for salmonids is much lower than for other fish species. Often, available salmon studies are limited to rainbow trout, a species
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 43 January 2018
bred captively for mass production and questionable in its representation of wild salmon. For example, six dietary exposure studies were identified for the LDW ecological risk assessment of arsenic in fish (Windward 2007). All but one of these tested rainbow trout and the remaining species was striped bass, a non-salmonid. Very few effect thresholds have been developed for the numerous CECs that are documented to adversely impact fish. Therefore, although these chemicals have been detected in Puget Sound and its urban estuaries, there is currently no established method for interpreting measured concentrations.
5.2.2 Exposure Pathways Chinook salmon can be exposed to contaminants through respiration (uptake through gills), dietary ingestion of prey, and incidental ingestion of sediment. Exposure through gill uptake can be significant for contaminants like many metals; thus, gill tissue concentrations can provide valuable information. The most uncertain estimation is for direct exposure to sediments through ingestion. However, this pathway is usually a small contribution to total exposure. The dietary pathway for fish is often of significant magnitude for certain chemicals, but it is difficult to accurately quantify exposure from this pathway. Some studies measure chemical concentrations in dietary components (e.g., stomach contents, invertebrate prey) which can have high natural variability due to individual preferences and food availability. Even with this information, there is uncertainty in the chemical uptake rate from food into fish tissue that is challenging to characterize. Dietary exposure assessment may be more valid than salmon tissue assessments if the contaminant(s) present are metabolizable by fish, such as with PAHs. Using tissue chemistry data to estimate exposure has the advantage of integrating accumulation from all exposure pathways. Thus, it is found useful when assessing bioaccumulative chemicals.
5.2.3 Multiple Contaminant Effects It is rare for only one chemical contaminant to be elevated in natural surface waters, especially in urban environments like the Duwamish Estuary. The effects of exposure to contaminant mixtures on fish are poorly understood and can only be assessed for a limited number of related chemicals (e.g., dioxins). Chemicals can have additive, antagonistic or agonistic effects but the net effect of multiple contaminants on fish are unknown. For this reason, biomarkers or evidence of adverse health in fish are sometimes used to evaluate contaminant effects. Perhaps the largest challenges in using biomarkers are determining which environmental contaminant causes the measured effects and if the observed effects impact the health and long-term survival of the fish. Lastly, the combined effect of chemical exposures and other stressors, such as higher temperatures and low dissolved oxygen, on fish is also difficult to assess.
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 44 January 2018
6.0 DISCUSSION AND CONCLUSION Observations of potential impacts of contaminants to juvenile Chinook salmon:
• Chinook smolt-to-adult (SAR) return rates have been found to be significantly lower in contaminated estuaries, like the Duwamish, relative to uncontaminated estuaries. Tissue chemistry/biomarkers
• LDW and EW risk assessments did not identify risk of impaired growth or survival for juvenile Chinook salmon. However, the LDW risk assessment noted reduced immunocompetence may occur in juvenile Chinook migrating through the LDW.
• Subsequent studies using more conservative assumptions concluded PCBs may be causing health impacts.
• The risks of impacts to Chinook salmon from CECs are unknown although these chemicals have been detected in the Lower Duwamish Estuary.
• Relatively little juvenile Chinook tissue chemistry data have been collected or evaluated in the Duwamish Estuary in the last 10 years, and even less data are available for the Green River. Available tissue chemistry data indicate juvenile Chinook salmon are bioaccumulating contaminants while in the Duwamish Estuary. Tissue assessments suggest that PCB exposure may be causing sublethal adverse effects to juvenile Chinook salmon. Sediment
• In the most contaminated areas of the LDW and EW, contaminated sediments are potentially impacting benthic invertebrates which could reduce the quantity or quality of food for juvenile salmon.
• Juvenile Chinook salmon in the Duwamish Estuary are exposed to sediments contaminated with PCBs, PAHs, some metals and phthalates.
• In the Duwamish Estuary, PCBs are the most widespread sediment contaminant. Sediment contaminants in the Green River need more characterization. Based on existing data, sediment contamination is highest in Mill (in Kent) and Springbrook Creek and may be a concern to benthic invertebrates. Mill Creek (in Auburn) is less contaminated and Jenkins, Newaukum, Covington or Big Soos creeks are of little concern. Arsenic and BEHP concentrations most frequently exceeded the no-effects benthic sediment cleanup level (SCO) in Green River tributaries.
• Superfund cleanup of contaminated sediments will be an important step in reducing the exposure of aquatic life including Chinook salmon to contaminants, particularly PCBs. Sediment recontamination will remain a risk from dredging activities during cleanup of the LDW and EW. Water chemistry
• Several water quality assessments have not identified any chemicals that are presenting notable risk to aquatic life. Of the chemicals investigated, mercury in water may be a chronic exposure risk for juvenile Chinook salmon in the Green River.
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 45 January 2018
A qualitative summary of information on contaminant risk to juvenile Chinook salmon reviewed in this report is presented in Table 5. The summary considers whether the completed assessments using each data type are directly reflective of risk to Chinook salmon, the level of risk posed to Chinook by the contamination, and how much knowledge uncertainty is associated with the information. Considering the low sample density and spatial distribution of water samples across the whole Green-Duwamish watershed, uncertainty associated with water data is concluded to be high although risk based on existing data appears to be low (Table 5). The risk from sediment contamination in the LDW and EW to Chinook from direct ingestion has not been quantified but is likely low relative to other pathways. However, the knowledge uncertainty on this risk is high due to limited information available on sediment consumption during feeding activities. Sediments in the LDW and EW are well characterized, but the impacts of sediment contamination on Chinook salmon are highly uncertain because direct exposure data are unavailable. The impacts of sediment contamination in some areas of LDW and EW on benthic invertebrates is high 5 (adverse impacts) to moderate (minimal impacts) potentially reducing Chinook salmon food quality or quantity. The knowledge uncertainty regarding how these benthic impacts affect Chinook salmon is high. Chinook tissue and biomarker data are the most directly relevant to Chinook salmon. Tissue chemistry assessments using these data in the LDW and EW RIs concluded low contaminant risks while the most recent assessment by WDFW indicates PCBs may be adversely affecting juvenile Chinook. Due to low sample density and effects assessment methods, knowledge uncertainty is high. Only water and sediment chemistry data were identified as available from the Lower and Middle Green River subbasins (Table 5). Aquatic life assessments suggest overall chemical exposure to Chinook salmon is low. The risk from sediment contamination in the Lower and Middle Green River to Chinook salmon from direct ingestion has not been quantified, but is likely low relative to other pathways. The knowledge uncertainty on this risk is high due to limited information available on sediment consumption during feeding activities. Similarly in the Upper Green, only water chemistry data are available and the overall chemical exposure appears low. The knowledge uncertainty associated with these data is high due to low sample density and lack of updated Chinook-specific thresholds in the WQS.
Summary of Information available on contaminant risk to juvenile Chinook.
Duwamish Estuary Chinook
specific
assessment?
Risk Level Uncertainty Notes
Water No – Aquatic
Life
Low High Low data volume;
not evaluated with
updated Chinook-
specific thresholds.
5 Risk definitions used here are not equivalent to regulatory definitions used in Superfund process.
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 46 January 2018
Duwamish Estuary Chinook
specific
assessment?
Risk Level Uncertainty Notes
Sediments – Direct
Exposure
None completed Low High Lack of exposure
data; unknown and
indirect effect on
Chinook.
Sediments and Benthic
Invertebrates
No – Indirect
exposure via
prey
High (for 4% of
LDW);Moderate
(for 18% of LDW);
Low in other areas
High Large volume,
indirect and
unquantified effect
on Chinook; multiple
lines of evidence.
Tissue/Food/Biomarkers Yes Moderate (PCBs) High Small data volume
and highly uncertain
effect thresholds.
SAR (return rates) Yes High High Contaminants as
cause for low SAR
unconfirmed. Need
further analysis and
other lines of
evidence.
Low to Mid-Green
Water No – aquatic life Low Moderate Small data volume;
Black River levels
highest for PCBs
and PAHs.
Sediments – Direct
Effect
No Low High Lack of exposure
data; unknown and
indirect effect on
Chinook.
Sediments and benthic
invertebrates
No – Indirect
effect on prey
Low in mainstem
and most
tributaries;
moderate in
Springbrook and
Mill (Kent) creeks.
High in
mainstem;
Moderate in
tributaries.
Indirect and
unquantified effect
on Chinook; Low
sample density in
mainstem; >10 per
creek.
Upper Green
Water No – aquatic life Low High Small data volume;
not evaluated with
Chinook-specific
thresholds. Relatively recent tissue chemistry data, biomarkers, and smolt-adult-return rate analysis provide multiple lines of evidence, although from only a handful of studies, that juvenile Chinook may experience adverse effects from contaminants in the Green-Duwamish watershed. However, substantial basic knowledge uncertainties are associated with these studies. Recent Chinook tissue assessments are based on only one published Chinook-specific effects threshold for PCBs, one for PAHs and one for PBDEs. Additional studies are needed to bound the uncertainty in relating tissue thresholds and effects in juvenile Chinook. The biomarkers measured by Johnson et al. (2008) and (Arkoosh et al. 2001) need to be connected to Chinook survival and repeated in additional studies. Additional work is needed to demonstrate that lower SARs for Chinook in contaminated estuaries like the
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 47 January 2018
Lower Duwamish result partly or wholly from contaminants and not lack of refugia, food, slower growth or other factors. Considering all of the information reviewed in this report, findings relevant to chemical contaminants and Chinook are:
• The Chinook salmon smolt-to-adult return rates have been found to be significantly lower in contaminated estuaries (including the Duwamish Estuary), relative to uncontaminated ones.
• Duwamish Estuary Chinook salmon are more contaminated than those in other Puget Sound waterbodies;
• Duwamish Estuary juvenile Chinook salmon may experience adverse effects from contaminants; reduced immunocompetence may occur in juvenile salmonids migrating through the LDW. Better effects data are needed to evaluate effects from PCBs and additional contaminants. No information on potential impacts of CECs on salmon are available for WRIA 9 although limited data show some are present in the Duwamish Estuary.
• Biomarkers, demonstrating contaminant exposure, have been observed in LDW Chinook salmon.
• Benthic invertebrates in some areas of the Duwamish River experience adverse effects from contamination. Therefore, it is possible this could reduce food availability for juvenile Chinook salmon and/or shift diet composition.
• Generally, water and sediment contaminant concentrations increase with distance downstream making the Upper Green the least contaminated and Duwamish Estuary the most contaminated;
• In general, tributaries with evidence of highest sediment contamination are the most urbanized (Springbrook and Mill [in Kent] creeks).
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 48 January 2018
7.0 RECOMMENDATIONS Although there are several substantial knowledge uncertainties related to contamination in the Green-Duwamish watershed, the highest risk to Chinook salmon from chemical contaminants is most likely in the Duwamish Estuary. Focusing future Chinook salmon work on this part of the watershed will increase the likelihood of success in determining if contaminants are impacting Chinook survival. However, contamination in the Lower Green River, while less severe than the Duwamish River, may also impact Chinook survival. Therefore, supplementing Duwamish Estuary sampling with some in the Lower Green River is recommended to provide context on relative spatial contributions and inform if management of chemical contamination upstream of the LDW will be necessary. While tracking the LDW cleanup schedule, it is recommended that further direct work on Duwamish Estuary Chinook salmon be supported by the WRIA 9 group. Work completed before cleanup begins on the LDW and EW will provide a foundation for comparison with future data to measure how juvenile Chinook health and contaminant impacts change over time. This work will be most efficiently directed at Chinook diet and tissue chemistry, biomarkers and sublethal effect measurement and improvement of Chinook-specific effect thresholds. Although any single type of exposure or effect measurement may have substantial uncertainties, collectively, multiple lines of evidence can more accurately characterize chemical impacts on Chinook salmon.
Recommendations for Future Work:
• Conduct studies that measure contaminants in juvenile Chinook tissues and stomach contents at different life stages or residence times; e.g., in rearing habitat for Chinook, in restored habitat project areas, and where tributaries enter the Green River. This work will strengthen the small dataset available for risk evaluation.
• Focus new studies on contaminants known to be elevated in the Duwamish Estuary and for which substantial effects data are published for some salmonids (PCBs, PAHs) and opportunistically explore CECs, such as pharmaceuticals, in water and Chinook salmon to build a chemistry database. CEC analysis is costly, effects analysis tools are lacking, and substantial new data are necessary to begin risk evaluation for Chinook. Therefore, prioritizing known contaminants first will optimize resources.
• Establish one or more new tissue effect thresholds for PCBs that are Chinook-specific. Effects thresholds are a tool that allow chemistry results to be placed into the context of toxicity. PCBs are the most widespread contaminant in the Duwamish Estuary. Outside of Superfund risk assessments, there is only one published PCB effect threshold that has been developed to assess Chinook in this region. Given the highly variable assumptions made in defining an effects threshold, developing one (or more) new PCB thresholds would provide a more stable foundation for evaluating how PCBs are affecting Chinook survival.
• Support studies that examine other effects evidence (e.g., juvenile Chinook bioassays with Duwamish sediments, biomarkers) by providing in-kind or financial assistance. In addition to the types of evidence recently collected for Chinook
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 49 January 2018
salmon (tissue and stomach content chemistry concentrations), work on other lines of evidence that can demonstrate occurrence of contaminant effects. For example, encourage National Oceanic and Atmospheric Administration or WDFW to conduct laboratory exposure of salmon for PCB, PBDE, PAH effect endpoints using Duwamish sediments.
• Tease out cause(s) of lower SAR by collecting juvenile salmon when they leave the Duwamish Estuary and measure body mass, nutrition and stomach contents and compare to release mass of Chinook salmon from hatcheries. This would test if food quality (e.g., benthic invertebrates) between hatchery and Duwamish Estuary mouth may be reducing juvenile health and decreasing SAR.
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 50 January 2018
8.0 REFERENCES AECOM. 2012. Final Feasibility Study for the Lower Duwamish Waterway, Seattle, WA. Prepared by AECOM for the Lower Duwamish Waterway Group. http://ldwg.org/rifs_docs9.htm#final2012 AECOM. 2016. Removal Action Construction Report. Phase 1: Sediment and Upland Cleanup. Lower Duwamish Waterway Superfund Site, Terminal 117 Early Action Area. Prepared by AECOM Environment for Port of Seattle. Amec Foster Wheeler. 2014. Habitat Project Construction Completion Report. Submitted by Amec Foster Wheeler Environmental and Infrastructure, Inc. to The Boeing Company. Seattle, Washington. Amec Foster Wheeler, Dalton, Olmsted & Fuglevand; and Floyd Snider. 2016. Corrective Measure Implementation Report: Duwamish Sediment Other Area and Southwest Bank. Corrective Measure. Boeing Plant 2. Seattle/Tukwila, Washington. Submitted by Amec Foster Wheeler Environmental and Infrastructure, Inc., Dalton, Olmsted, & Fuglevand Inc., and Floyd/Snider, Inc. to The Boeing Company. Seattle, Washington. Anchor QEA and Windward. 2016. Feasibility Study. East Waterway Operable Unit Supplemental Remedial Investigation/Feasibility Study. Draft Final. October 2016. Arkoosh, M.R., D. Boylen, J. Dietrich, B.F. Anulacion, G. Ylitalo, C.F. Bravo, L.L. Johnson, F.J. Loge, and T.K. Collier. 2010. Disease susceptibility of salmon exposed to polybrominated diphenyl ethers (PBDEs). Aquat. Toxicol. 98(1): 51-59. Arkoosh, M., E. Clemons, P. Huffman, A. Kagley, E. Casillas, N. Adams, H.R. Sanborn, T.K. Collier, and J.E. Stein, 2001. Increased susceptibility of juvenile chinook salmon to vibriosis after exposure to chlorinated and aromatic compounds found in contaminated urban estuaries J. Aquat. Anim. Health 13(3): 257-268. Arkoosh, M., J. Dietrich, G.M. Ylitalo, L.J. Johnson, and S.M. O'Neill. 2013. Polybrominated diphenyl ethers (PBDEs) and Chinook salmon health. U.S. Department of Commerce. National Oceanic and Atmospheric Association, National Marine Fisheries Service, Northwest Fisheries Science Center, Newport, Oregon. 49 pp. plus Appendices. Conn, K.E., B.W. Black, A.M. Vanderpool-Kimura, J.R. Foreman, N.T. Peterson, C.A. Senter, and S.K. Sissel, 2015. Chemical concentrations and instantaneous loads, Green River to the Lower Duwamish Waterway near Seattle, Washington, 2013–15: U.S.
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 51 January 2018
Geological Survey Data Series 973, 46 p., https://pubs.er.usgs.gov/publication/ds973. Cordell, J., L.A. Tear, C.M. Simenstad, W.G. Hood. 1996. Duwamish River Coastal American Restoration and Reference Sites: Results from 1995 Monitoring Studies. Fisheries Research Institute, University of Washington. Cordell, J., L.A. Tear, C.M. Simenstad, S.M. Wenger, and W.G. Hood. 1994. Duwamish River Coastal American Restoration and Reference Sites: Results and Recommendations from Year 1 Pilot and Monitoring Studies. Fisheries Research Institute, University of Washington. Cordell, J., J. Toft, M. Cooksey, and A. Gray. 2006. Fish assemblages and patterns of Chinook salmon abundance, diet and growth at restored sites in the Duwamish River. University of Washington, Seattle, WA. Prepared for the WRIA 9 Technical Committee and WRIA 9 Steering Committee. David, A.T., C.A. Simenstad, J.R. Cordell, J.D. Toft, C.S. Willings, A. Gray, and H. Berge. 2015. Wetland loss, juvenile salmon foraging performance and density dependence in Pacific Northwest Estuaries. Estuaries and Coasts, 39:767-780. https://link.springer.com/article/10.1007%2Fs12237-015-0041-5 Du, B, J. K. Lofton, A. Peter, C.A. Gipe, J. James, N. McIntyre, J. Scholz, E. Baker, E.P. Kolodziej, 2017. Development of suspect and non-target screening methods for detection of organic contaminants in highway runoff and fish tissue with high-resolution time-of-
flight mass spectrometry. Environ. Sci.: Processes and Impacts, 19:1185-1196. EBDRP. 2005. Norfolk CSO Sediment Remediation Project, Final Monitoring Report – Year 5. Panel Publication 38. Prepared by the King County Water and Land Resources Division for the King County Wastewater Division and the Elliott Bay/Duwamish Restoration Program. EBDRP. 2015. Duwamish/Diagonal Sediment Remediation Project Final 2010 Monitoring Report. Panel Publication 43. Prepared by the King County Water and Land Resources Division for the King County Wastewater Division and the Elliott Bay/Duwamish Restoration Program. Ecology. 2009. Urban Waters Initiative, 2007. Sediment Quality in Elliot Bay. Prepared by V. Partridge, S. Weakland, E. Long, K. Welch, M. Dutch, and M. Jones. Environmental Assessment Program, Washington State Department of Ecology, Olympia, WA. Ecology Publication 09-03-014.
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 52 January 2018
Ecology. 2013. Surface Water Monitoring Program for Pesticides in salmon-bearing streams, 2009-2011 Trienniel Report. D. Sargeant, E. Newell, P. Anderson and A. Cook. Environmental Assessment Program, Washington State Department of Ecology and Washington State Department of Agriculture. Olympia, WA. Ecology No. 13-03-002. Ecology. 2014. A Pollutant Loading Assessment (PLA) for the Green-Duwamish Watershed. Washington Department of Ecology, Lacey, WA. Publication 14-10-053. https://fortress.wa.gov/ecy/publications/documents/1410053.pdf Ecology. 2015. PSEMP Sediment Database (last updated 2/5/2013, accessed 5/27/2015). Washington Department of Ecology, Marine Sediment Monitoring Program, Olympia, WA. Ecology and King County. 2011. Control of Toxic Chemicals in Puget Sound: Assessment of Selected Toxic Chemicals in the Puget Sound Basin, 2007-2011. Washington State Department of Ecology, Olympia, WA and King County Department of Natural Resources, Seattle, WA. Ecology Publication No. 11-03-055. https://fortress.wa.gov/ecy/publications/publications/1103055.pdf Eisler, R., and A. Belisle. 1996. Planar PCB Hazards to Fish, Wildlife and Invertebrates: A Synoptic Review. Biological Report 31 of the Contaminant Hazard Reviews. National Biological Service, U.S. Department of the Interior. Washington, D.C. Engel, J., K. Higgins, and E. Ostergaard. 2017. Draft WRIA 9 Climate Change Impacts on Salmon. Chapter of the WRIA 9 Salmon Habitat Plan Update. EPA. 2002. National Recommended Water Quality Criteria: 2002. Office of Water and Office of Science Technology. United States Environmental Protection Agency. EPA-822-R-02-047. EPA. 2003. Harbor Island Superfund Site, West Waterway Operable Unit, Seattle, WA: Record of Decision. EPA, 2006. National Recommended Water Quality Criteria listings. U.S. Environmental Protection Agency. Accessed May 2008. www.epa.gov/waterscience/criteria/wqcriteria.html EPA. 2014. Record of Decision: Lower Duwamish Waterway Superfund Site. United States Environmental Protection Agency, Region 10. http://ldwg.org/ (EPA website under construction)
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 53 January 2018
Fore, L.S., K. Paulsen, and K. O'Laughlin. 2001. Assessing the performance of volunteers in monitoring streams. Freshwater Biology 46: 109-123. Fresh, K.L., 2006. Juvenile Pacific Salmon in Puget Sound. Puget Sound Nearshore Partnership Report No. 2006-06. Published by Seattle District, U.S. Army Corps of Engineers, Seattle, Washington. Johnson, L. 2000. An analysis in support of sediment quality thresholds for polycyclic aromatic hydrocarbons to protect estuarine fish. Prepared by Lyndal Johnson of Northwest Fisheries Science Center, NOAA/NMFS, Seattle, WA. Johnson, L.L., G.M. Ylitalo, M.R. Arkoosh, A.N. Kagley, C. Stafford, J.L. Bolton, J. Buzitis, B.F. Anulacion, and T.K. Collier, 2007. Contaminant exposure in outmigrant juvenile salmon from Pacific Northwest estuaries of the United States. Environ. Monit. Assess. 124(1-3): 167-194. Johnson, L.L., MR. Arkoosh, C.F. Bravo, T.K. Collier, M.M. Krahn, J.P. Meador, M.S. Myers, W.L. Reichert, J. Stein. 2008. Effects of Polycyclic Aromatic Hydrocarbons in Fish from Puget Sound. Chapter 22 in The Toxicology of Fishes. DiGiulio, R., and D. Hinton (eds). CRC Press, Taylor & Francis Group, Boca Raton, FL. USA pp. 877-923. Karr, J.R. 1998. Rivers as sentinels: using the biology of rivers to guide landscape management. Pages 502-528. In Naiman, R. J. and R. E. Bilby (editors). River Ecology and Management: Lessons from the Pacific Coastal Ecosystem. Springer, New York, NY. Karr, J.R. and E.W. Chu. 1999. Restoring Life in Running Waters: Better Biological Monitoring. Island Press, Washington, DC. King County. 2005. Screening Level Risk Assessment of the Green River Watershed. Prepared by Parametrix, Inc. for King County Department of Natural Resources and Parks, Seattle, WA. King County. 2013. PCB/PBDE Loading estimates for the Greater Lake Washington Watershed. Prepared by Curtis DeGasperi, Water and Land Resources Division, Seattle, WA. King County. 2014a. Lower Duwamish Waterway Source Control: Green River Watershed Surface Water Data Report. Prepared by Carly Greyell, Debra Williston, and Deb Lester. Water and Land Resources Division. Seattle, Washington.
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 54 January 2018
King County. 2014b. Sediment Quality in the Green River Watershed. Prepared by Dean Wilson, Carly Greyell, and Debra Williston, King County Water and Land Resources Division. Seattle, Washington. King County. 2017a. Water Quality Assessment and Monitoring Study: Analysis of Existing Data on the Duwamish Estuary. Prepared by Chris Magan, Timothy Clark, Kate Macneale, Martin Grassley, Bob Bernhard, and Dean Wilson, Water and Land Resources Division. Seattle, Washington King County. 2017b. Water Quality Assessment and Monitoring Study: Contaminants of Emerging Concern. Prepared by Richard Jack and Martin Grassley, Water and Land Resources Division. Seattle, Washington. King County. 2015. Lower Duwamish Waterway Source Control: Upper and Middle Green River Surface Water Data Report. Prepared by Carly Greyell, Richard Jack, and Debra Williston, Water and Land Resources Division. Seattle, Washington. Kleindl, W.J. 1995. A Benthic Index of Biotic Integrity for Puget Sound Lowland Streams, Washington, USA. M.S. Thesis, University of Washington, Seattle, Washington. McIntyre J.K., J.W. Davis, K.H. Macneale, B.F. Anulacion, C. Hinman, N.L. Scholz, J.D. Stark. 2015. Soil bioretention protects juvenile salmon and their prey from the toxic impacts of urban stormwater runoff. Chemosphere 123:213-219 Open Access: http://www.sciencedirect.com/science/article/pii/S0045653514014805 McIntyre, J.K., R.C. Edmunds, M.G. Redig, E.M. Mudrock, J.W. Davis, J.P. Incardona, J.D. Stark, N.L. Scholz. 2016. Confirmation of stormwater bioretention treatment effectiveness using molecular indicators of cardiovascular toxicity in developing fish. Meador, J.P. 2014. Do chemically contaminated river estuaries in Puget Sound (Washington, USA) affect the survival rate of hatchery-reared Chinook salmon. Can. J. Fish. Aquat. Sci. 71: 162–180. Meador, J.P., T.K. Collier, and J.E. Stein. 2002. Use of tissue and sediment-based threshold concentrations of polychlorinated biphenyls (PCBs) to protect juvenile salmonids listed under the US Endangered Species Act. Aquat. Conserv. Mar. Freshwat. Ecosyst. 12(5): 493-516. Meador, J.P., Sommers, F.C., Ylitalo, G.M., and Sloan, C.A. 2006. Altered growth and related physiological responses in juvenile Chinook salmon (Oncorhynchus tshawytscha) from dietary exposure to polycyclic aromatic hydrocarbons (PAHs). Can. J. Fish. Aquat. Sci. 63(10): 2364-2376.
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 55 January 2018
Miller-Schultze, J., A. Gipe, D. Overman, and J. Baker. 2014. Contaminants of emerging concern in Puget Sound: A comparison of spatial and temporal levels and occurrence. Salish Sea Ecosystem Conference Proceedings. http://cedar.wwu.edu/ssec/2014ssec/Day3/14/ Morley, S.A., and J.R. Karr. 2002. Assessing and restoring the health of urban streams in the Puget Sound basin. Conservation Biology. 16:1498-1509. Morley, S.A., J.D. Toft, and K.M. Hanson. 2012. Ecological effects of shoreline armoring on intertidal habitat in a Puget Sound Urban Estuary. Estuaries and Coasts 35:774-784. Nelson, T., H. Berge, G. Ruggerone, and J. Cordell. 2013. DRAFT Juvenile Chinook migration, growth, and habitat use in the Lower Green and Duwamish Rivers and Elliott Bay nearshore. King County Department of Natural Resources and Parks, Water and Land Resources Division, Seattle. O’Neill, S.M., A.J. Carey, J.A. Lanksbury, L.A. Niewolny, G. Ylitalo, L. Johnson, and J.E. West. 2015. Toxic contaminants in juvenile Chinook salmon (Onchorhynchus tsawytscha) migrating through estuary, nearshore and offshore habitats of Puget Sound. Report FPT 16-02. Washington Dept. of Fish and Wildlife in Olympia, and Northwest Fisheries Science Center, Seattle, WA. Parametrix and King County. 1999. King County CSO Water Quality Assessment for the Duwamish River and Elliott Bay. Appendix B4 Methods and Results of Aquatic Life Risk Assessment. Pers. Comm. Anderson. 2017. Email communication between Brian Anderson of The Boeing Company and Jenée Colton of King County on May 5, 2017. Pers. Comm. Chu. 2017. Phone conversation between Rebecca Chu of EPA Region 10 and Jenée Colton of King County on April 28, 2017. Pers. Comm. Florer. 2017. Email conversation between Joanna Florer of Port of Seattle and Jenée Colton of King County on June 27, 2017. Pers. Comm. Schuchardt. 2017. Email communication between Dave Schuchardt of City of Seattle and Jenée Colton of King County on June 27, 2017. Pers. Comm. Williston. 2017. Email communication between Debra Williston and Jenée Colton of King County on December 4, 2017. Ruggerone, G.T., and D.E. Weitkamp, 2004. WRIA 9 Chinook Salmon Research Framework. Prepared by Natural Resource Consultants, Inc and Parametrix, Inc. Prepared for the WRIA 9 Steering Committee, Seattle Washington.
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 56 January 2018
Scholz, N.L., M.S. Myers, S.G. McCarthy, J.S. Labenia, J.K. McIntyre, et al. 2011. Recurrent Die-Offs of Adult Coho Salmon Returning to Spawn in Puget Sound Lowland Urban Streams. PLoS ONE 6(12): e28013. Seattle. 2015. Slip 4 Early Action Area (EAA): Long Term Monitoring Data Report: Year 3 (2015). Submitted to U.S. Environmental Protection Agency by City of Seattle, Seattle, WA. Spromberg, J., D. Baldwin, J. McIntyre, S. Damm, B. Anulacion, J. Davis, and N. Scholz. 2015. Coho salmon spawner mortality in western U.S. urban watersheds: Bioinfiltration prevents lethal stormwater impacts. Journal of Applied Ecology. doi: 10.1111/1365-2664.12534 Open Access: http://onlinelibrary.wiley.com/doi/10.1111/1365-2664.12534/epdf Stalling, D. and F.L. Mayer. 1972. Toxicities of PCBs to fish and environmental residues. Env. Health Persp. 1:159-164. Tetra Tech. 2016. Modeling Quality Assurance Project Plan for Green/Duwamish Pollutant Loading Assessment. Prepared by Tetra Tech, Inc., Research Triangle Park, N.C. for the U.S. Environmental Protection Agency Region 10, Seattle, WA. Contract EP-C-12-055. Tetra Tech. 2017. Revised Draft LSPC Model Development and Hydrology Calibration for the Green/Duwamish River Pollutant Loading Assessment. Prepared by Tetra Tech, Inc., Research Triangle Park, N.C. for the U.S. Environmental Protection Agency Region 10, Seattle, WA. https://www.ezview.wa.gov/Portals/_1962/Documents/DGPLA/DuwamishModelDocumentation020117Hydro.pdf Windward. 2007. Phase 2 Baseline Ecological Risk Assessment. Appendix A of Lower Duwamish Waterway Remedial Investigation Report. Submitted to U.S. Environmental Protection Agency and WA Department of Ecology for the Lower Duwamish Waterway Group. Windward. 2009. East Waterway Operable Unit Supplemental Remedial Investigation/Feasibility Study Final Surface Water Data Report. Prepared by Windward Environmental LLC, Seattle, WA. Submitted to U.S. Environmental Protection Agency Region 10 for the East Waterway Group. Windward. 2010. Lower Duwamish Waterway Remedial Investigation Report. Prepared by Windward Environmental LLC, Seattle, WA. Submitted to U.S. Environmental
AGENDA ITEM #6. e)
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section 57 January 2018
Protection Agency and Washington Department of Ecology for the Lower Duwamish Waterway Group. Windward. 2012. Baseline Ecological Risk Assessment. Appendix A of East Waterway Supplemental Remedial Investigation Report. Prepared by Windward Environmental LLC, Seattle, WA. Submitted to U.S. Environmental Protection Agency Region 10 for the East Waterway Group. Windward and Anchor QEA. 2014. East Waterway Operable Unit. Final Supplemental Remedial Investigation. Prepared by Windward Environmental LLC and Anchor QEA for U.S. Environmental Protection Agency Region 10, Seattle, WA. Wood, C.M. 2012. An Introduction to Metals in Fish Physiology and Toxicology Basin Principles. Chapter 1 in Homeostasis and Toxicology of Essential Metals. C. Wood, A.P. Farrell, and C.J. Brauner (eds). Academic Press, Elsevier, Waltham, MA. pp. 1-51. Wood, C., A.P. Farrell, and C.J. Brauner. 2012a. Homeostasis and Toxicology of Essential Metals. Volume 31A in the Fish Physiology Series. Academic Press, Elsevier, Waltham, MA. 494 pp. Wood, C., A.P. Farrell, and C.J. Brauner. 2012b. Homeostasis and Toxicology of Non-Essential Metals. Volume 31B in the Fish Physiology Series. Academic Press, Elsevier, Waltham, MA. 504 pp.
AGENDA ITEM #6. e)
Green-Duwamish and Central Puget Sound Watershed Salmon Habitat Plan • November 2020 PAGE
B-1
ROGER TABOR
Appendix B:
A Synthesis of Changes in our Knowledge of Chinook
Salmon Productivity and Habitat Uses in WRIA 9
(2004 – 2016)
AGENDA ITEM #6. e)
A synthesis of changes in our knowledge of Chinook salmon productivity and habitat uses in WRIA 9 (2004 – 2016)
1
A synthesis of changes in our knowledge of Chinook salmon productivity and habitat uses in
WRIA 9 (2004 – 2016)
Purpose:
This technical briefing synthesizes and evaluates available Chinook salmon habitat use and productivity
literature that has become available since 2004, with an emphasis on WRIA 9 specific information. The
information should pertain to possible updates the WRIA could make to amend programs, policies or
project rankings as part of the Chinook salmon recovery effort that was documented in the 2005
Chinook salmon Habitat Plan.
The paper is organized into two primary sections, issues that cross subwatersheds, or ‘watershed wide
issues’ and then issues focused on individual subwatersheds. Following the description of major topic
area is a subsection summarizing the primary technical recommendations and implications for recovery
actions. Three other technical briefings will cover climate change, chemical contaminants in the
watershed, and water temperature issues. In sum, these briefings will be considered an addendum to
the 2005 WRIA 9 Strategic Assessment Report-Scientific Foundation for Salmon Habitat Conservation,
and provide the scientific foundation for updating the 2005 Salmon Habitat Plan.
Watershed Wide Issues
Viable Salmonid Population Parameters and Green River Chinook
In order for Puget Sound Chinook to be removed from the Endangered Species Act listing, two
populations within the South Puget Sound geographic region (Nisqually, Puyallup, White,
Duwamish/Green, and Lake Washington) will need to attain a low risk status of extinction. The
watershed conditions for the remaining populations need to be improved compared to conditions at the
time of listing. To be considered low risk of extinction, a population will need to meet the NOAA
viability criteria for all Viable Salmonid Population (VSP) parameters (abundance, productivity, spatial
structure, and diversity).
NOAA defines VSP as:
Abundance is the number of individuals in the population at a given life stage or time;
Productivity or population growth rate is the actual or expected ratio of abundance in the next
generation to current abundance;
Spatial structure refers to how the abundance at any life stage is distributed among available or
potentially available habitats; and
Diversity is the variety of life histories, sizes, and other characteristics expressed by individuals
within a population.
VSP-Abundance
The number of natural origin Green River Chinook spawners is the primary life stage that is tracked for
the abundance indicator. The overall trend in abundance has been steadily declining since before the
first plan was adopted in 2005 (Figure 1 and Table 1). In 2009, the number of Natural Origin Spawners
(NOS) was the lowest ever recorded, with less than 200 fish. For five of the past seven years (2010-
2017), the number of NOS has been less than the lowest planning target range (1,000 NOS) for WRIA 9.
AGENDA ITEM #6. e)
A synthesis of changes in our knowledge of Chinook salmon productivity and habitat uses in WRIA 9 (2004 – 2016)
2
Figure 1. Trends in natural origin Chinook spawners and all spawners (hatchery origin plus natural
origin). (Data from NOAA Salmon Population Summary Database and WDFW Nathanael Overman)
Table 1. Status of VSP metrics of the Green River Fall Chinook population from 2005 through 2015. (Data
from NOAA Salmon Population Summary Database and WDFW Nathanael Overman. 2005-2008 numbers from
WRIA 9 ITC 2012)
VSP-Productivity
The WRIA has tracked egg-to-migrant survival rates as a primary means of evaluating productivity (WRIA
9 ITC 2012). Egg-to-migrant survival rate is defined as the proportion of fertilized eggs that become
juvenile migrants (fry or parr) into the Lower Green, as quantified by the WDFW smolt trap at river mile
34. Although, the average rate for wild Chinook populations is 10.4% (Quinn 2005), the WRIA has set a
target of 8% because the Green River Chinook population has high rates of hatchery fish spawning with
0
2000
4000
6000
8000
10000
12000
14000
Number of SpawnersGreen River Chinook in River Spawning
Total Spawners
Natural origin spawners
Linear (Total Spawners)
Linear (Natural origin
spawners)
Population
attribute
Indicators of change Units Target 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015
Productivity Egg-to-Migrant Survival
(RM 34-60)
% of eggs
deposited
~8%1.47 0.09 3.66 2.07 2.10%5.70%8.00%6.02%9.72%11.39%8.75%
Abundance Natural origin spawners #1000-4200 1046 2535 2022 4227 182 909 640 1685 559 1069 864
Diversity Hatchery-origin recruits
spawning in river % of total <30%60 60 53 35 74 60 40 47 74 63 79
Diversity Relative abundance of
parr % parr TBD 70 31 37 39 39 90 49 53 28 20 3
Diversity Timing of peak
outmigration
fry 3/11-
3/16
3/30-
4/5
3/30-
4/5
3/29-
4/4
3/7-
3/13
2/20-
2/26
3/11-
3/17
3/3-
3/9
2/2-
2/8
Diversity Timing of peak
outmigration
parr 6/2-
6/8
6/15-
6/21
6/15-
6/21
6/7-
6/13
5/23-
5/29
6/4-
6/10
5/27-
6/2
5/26-
6/1
6/15-
6/21
Diversity Proportion 5 and 6 year
old spawners
% of NOR
returns Increase
65%1%7%2%16%17%6%
Spatial
Structure
Changes to spawning
distribution No data
From WRIA 9 ITC 2012
not evaluated
From NOAA SPSD and WDFW (Nathanael Overman)
not evaluated not evaluated
AGENDA ITEM #6. e)
A synthesis of changes in our knowledge of Chinook salmon productivity and habitat uses in WRIA 9 (2004 – 2016)
3
wild fish (see diversity metric below). Between 2005 and 2015 the survival rate has ranged from 0.09%
to 11%, with an average of 5.4% (Table 1). While the average over the last 11 years is below the WRIA’s
target, there has been an increase in the egg-to-migrant survival rate, with an average over the last 5
years (2011-2015) of 8.7%, compared to the previous 5 years (2006-2010) average of 2.9%.
VSP-Spatial Structure
The WRIA has not directly tracked a specific indicator or metric for spatial structure. However, natural
origin adults predominately spawn in Newaukum Creek and the mainstem Green River. Due to genetic
goals at the Soos Creek Hatchery, most of the adults passed above the hatchery to spawn naturally in
Soos Creek are of hatchery origin. Furthermore, adults are still not being passed upstream of Howard
Hanson Dam. For the spatial structure of the population to improve, natural origin spawners will need
to be spawning in both of these areas that were part of their historic range.
VSP-Diversity
The fourth VSP parameter, diversity, refers to variation within a population which covers a wide range of
characteristics, one of which is life history type. For example, within WRIA 9, juvenile life history types
have been classified according to how long they reside in different parts of the Green River, with special
emphasis on the Middle Green as well as the Duwamish. There are three broad life history types: fry
migrants, parr migrants, and yearlings (Figure 2 and Table 1), however fry migrants can be broken down
into three categories, making a total of 5 life history types.
1. The first fry life history type is early or marine direct fry migrants. These fry leave the Middle
Green shortly after hatching and move quickly from the estuary into Puget Sound. Based on fish
use sampling (Ruggerone et al. 2006, Nelson et al. 2012 and U.S. Army Corps of Engineers 2013,
ICF International 2010) this life history type does not occur in large numbers, but appears to be
present.
2. The second fry life history type leaves the Middle Green from Jan through March and rears for
weeks to months in the Duwamish until they reach smolt size. This life history type is
considered common and generally is the most abundant juvenile life history type (Ruggerone et
al. 2006, Nelson et al. 2012, Topping and Anderson 2014), but recent data from 2015 and 2016
showed very few of this life history type survived to adulthood in 2015 (Personnel
Communication Lance Campbell, WDFW 2017. See the otolith section below for more
information).
3. The third fry life history type, Lower Green parr, are fish that leave the Middle Green as fry, but
rear in the Lower Green until they are parr size and ready to smolt. The evidence for the
prevalence of this life history type is incomplete due to limited fish use sampling and the
constant immigration of new fish from the Middle Green River. Recent sampling shows some
amount of preferential use of select habitats within the Lower Green, indicating that at least
some fish are likely rearing in the Lower Green until reaching parr size (McCarthy et al. 2017 and
Gregersen 2017). However, the Lower Green generally lacks adequate off channel habitat that
would allow large numbers of fry to rear long enough to reach parr size (R2 Resource
Consultants 2014).
4. The fourth life history type is the Middle Green parr that rear in the Middle Green River as fry
and migrate out of this area from late March through June. They are considered relatively
common, and are generally the second most abundant life history type (Topping and Anderson
2014, Anderson and Topping 2017).
5. The fifth life history type are yearlings, which are juveniles that spend an entire year in
freshwater before immigrating out of the Green River. It is not clear where in the broader Green
River they overwinter. The majority of yearlings captured in the past are from hatchery releases
AGENDA ITEM #6. e)
A synthesis of changes in our knowledge of Chinook salmon productivity and habitat uses in WRIA 9 (2004 – 2016)
4
of yearling fish that were purposefully held for a year in an attempt to residualize the fish to
create year round fishing opportunities in Puget Sound. These fish are commonly referred to as
being part of the ‘blackmouth’ fishery. The wild yearling life history type has been found in
small numbers at the Washington Department of Fish and Wildlife (WDFW) smolt trap (Topping
and Anderson 2014) and in the limited floodplain accessible habitats of the Lower Green
(Lucchetti et al. 2014).
Figure 2. Primary Chinook salmon life history types in the Green River (updated and modified from
Ruggerone and Weitkamp 2004).
WRIA 9 has used three metrics to measure diversity.
1. The first metric is the percentage of hatchery origin spawners spawning in the wild with natural
origin Chinook. The target is for there to be less than 30% hatchery origin Chinook spawners.
This has not been met in the last 10 years, during which time the proportion of hatchery fish on
the spawning grounds has ranged from 35% to 75% (Figure 3 and Table 1).
2. The second metric is the percentage of juvenile Chinook that outmigrate as parr. Based on
recent analyses by Anderson and Topping 2017 (described in more detail below in Middle Green
subwatershed section), this indicator should no longer be used because the observed
percentage relies heavily on basic habitat capacity, the number of natural origin spawners, and
AGENDA ITEM #6. e)
A synthesis of changes in our knowledge of Chinook salmon productivity and habitat uses in WRIA 9 (2004 – 2016)
5
the flow experienced during rearing. Tracking the percent of parr does not provide a reliable
metric to compare trends given the number of factors that affect it.
3. The final metric is the proportion of natural origin adults that return as five and six-year old fish,
with a simple target of an increasing percentage of older fish returning over time. In the last
seven years there have been no six-year old fish, thus all the data discussed summarizes only
five-year old Chinook. Excluding 2009, which was an outlier year with the lowest return of
adults on record, the proportion of five-year olds has ranged from a high of 17% to a low of 1%
(Table 1). The average percent return for the last 10 years, 14.4%, is similar to the average over
the last 46 years of 15.4%.
Figure 3. Percent of hatchery Chinook in the Green River spawning grounds compared to natural origin
Chinook (from the 2014 WRIA 9 Implementation Progress Report 2005-2014)
Technical Recommendations and potential implications for recovery actions:
The overall trend in wild Chinook salmon population abundance is still declining. The returns of
wild fish to the Green River in 2009 were the lowest recorded in the last 30 years, with less than
200 wild fish spawning in the river (Figure 1). As noted above, a primary way to increase adult
abundance is to create or get access to more rearing habitat. Improving and increasing rearing
habitat in the Middle and Lower Green and providing access to the upper watershed are primary
ways of achieving this goal.
Productivity has improved in the last five years (2011-2015), compared to the previous 5 years
when the WRIA last evaluated the egg-to-migrant survival rate. It is unclear why the rate has
improved. Based on findings described in the diversity section above, the WRIA should likely
AGENDA ITEM #6. e)
A synthesis of changes in our knowledge of Chinook salmon productivity and habitat uses in WRIA 9 (2004 – 2016)
6
focus on evaluating the number of parr leaving the Middle Green versus the proportion of parr
to fry as a better indicator of long term habitat capacity and productivity because the number of
fry leaving the Middle Green is highly variable, which makes using the metric of the percentage
of parr useless.
Spatial structure is not being tracked. There is a suggestion in the Strategic Assessment that the
WRIA create a method to track to what extent spawning habitat patches are utilized every year.
The ITC also recommends creating a metric to evaluate Chinook parr distribution, possibly
through minnow trapping as has been done in some Alaska watersheds (Bryant 2000). The
WRIA should develop spatial structure metrics that can be cost efficiently tracked.
Spatial Structure is still greatly limited compared to historic conditions. The lack of fish passage
at Howard Hanson Dam (HHD) greatly impacts the WRIA’s ability to meet this goal. The
upstream fish passage facility is complete. However, the downstream fish passage facility at
HHD (Project # UG-4) has not been built and it is unclear when it will be. Given the large
quantity and high quality of spawning and rearing habitat above the dam in combination with
the highly constrained built-out condition of the lower two thirds of the watershed, the lack of
access to the habitat upstream of HHD is negatively affecting all VSP parameters. Providing fish
passage at the dam is a critical need and this project should continue to be a high priority for the
WRIA.
Diversity metrics show there are still very high numbers of hatchery fish on the spawning
grounds. Since plan adoption, the percent of hatchery spawners has not fallen within the target
range set by the Hatchery Scientific Review Group (HSRG) for an integrated stock like the Green
River. This points to a need for the ‘H’ integration process to be restarted and reinvigorated
with the co-managers so that solutions for issues like the number of hatchery adults spawning
with wild fish can be implemented.
Fish Passage
The majority of known barriers are found higher up in most stream systems, limiting habitat
access to primarily coho salmon and steelhead. A comprehensive fish passage barrier
assessment has never been done within WRIA 9 and the list of known barriers comes from
assessments of small geographic areas that underwent an assessment for one reason or another
over many years. Given the built out nature of the lower two thirds of the watershed, there are
many stream crossings that have never been assessed for passage. Furthermore, the ability of
fish to pass a structure changes over time as stream conditions change. WDFW suggests that
partial barriers and passable stream crossing be evaluated roughly every ten years (Price et al.
2010). With the recent establishment of the statewide Fish Barrier Removal Board, there has
been renewed effort at the state level to fund and address known fish passage barriers. While
there are many known barriers within WRIA 9, there are two barriers that are of higher
importance than most others:
o Howard Hanson Dam (HHD): In 2005 it was expected fish passage at the dam would be
provided within five years. While the upstream passage facility was built, the
downstream fish passage structure has not been built yet. There are differing estimates
as to how much salmon habitat would be accessible above the dam. The range of fish
habitat that would be opened up is from 78 miles to 165 miles (United States Army
Corps of Engineers 1998 and WRIA 9 Salmon Plan 2005). The lack of downstream
passage has had a huge impact on the trajectory of recovery for the population. The
large amount of generally higher quality habitat above the dam that is still inaccessible,
which affects all VSP parameters (WRIA 9 Strategic Assessment 2005).
AGENDA ITEM #6. e)
A synthesis of changes in our knowledge of Chinook salmon productivity and habitat uses in WRIA 9 (2004 – 2016)
7
o Black River pump station: New technical documents produced in 2015 as part of the
Black River Needs Assessment and Capital Improvement Planning indicate that the
pump station has a variety of fish passage issues related to how the facility is structured
and managed. The description implies that velocities through parts of the structure
would limit upstream passage of smaller juvenile salmonids. Passage equipment is run
only during certain times of the year, greatly limiting both upstream and downstream
passage. Some of the pump intakes lack fish exclusion screens to keep fish out of the
intakes for the pumps; these unscreened pumps are each run an average of hours a
year. The pump station is located near the mouth of the Black River, which limits access
to over 50 miles of stream, including Springbrook Creek, Panther Lake Creek, Garrison
Creek, and Mill Creek (Kent) (Figure 4). Habitat assessments done in the 1990s indicate
that much of the physical habitat is not in ideal condition and there are a large variety of
water quality problems (Harza 1995). While Chinook have been found in the system
(Harza 1995 and Personal Communication Gordon Thomson, U.S. Army Corps of
Engineers, 2011) the stream habitat is more typical for coho and steelhead.
Technical recommendations and potential implications for recovery actions :
Implementation of the existing Salmon Plan Project UG-4 (Upper Green project #4), which
would provide downstream fish passage at HHD, remains a critical gap to all VSP parameters -
especial spatial structure.
Work with King County to prioritize improvements in both the fish passage infrastructure as well
as standard operating procedures at the Black River pump station.
Invest in a fish passage program that would provide an ongoing comprehensive assessment of
potential barriers, with an emphasis on areas within the typical range of Chinook salmon.
Map and prioritize fish passage barriers in WRIA 9 according to the amount and quality of
habitat upstream. Given issues described in the water quality temperature technical memo, an
emphasis on cold water refugia and rearing habitat should also be considered in any passage
program (Kubo 2017).
Spawning
Chinook have been seen spawning in tributaries they were not previously documented in and
we have more detailed data for where they spawn within Soos Creek (Figure 5).
a. The Muckleshoot Indian Tribe (MIT) surveys in Soos Creek during the last five years have
documented the primary spawning areas more definitively than past efforts. The vast
majority of the spawning in the Soos Creek Watershed is occurring on the mainstem of
Soos Creek from the mouth of Jenkins Creek downstream to the hatchery.
b. Since plan adoption in 2005, Chinook have been seen spawning in: Bingamon Creek,
tributary to Mullen Slough within the Agricultural Production District in 2010 (Personal
Communication Don Finney King County, 2010), and by the ACOE in of Springbrook
Creek in 2011 (Personal Communication Gordon Thomson, U.S. Army Corps of
Engineers, 2011), Watercress Creek, a tributary to Newaukum Creek by KCDOT in 2007
(Personal Communication Stephen Conroy, King County, 2017), and Big Spring Creek in
2016 (Personal Communication Josh Latterell, King County, 2017).
AGENDA ITEM #6. e)
A synthesis of changes in our knowledge of Chinook salmon productivity and habitat uses in WRIA 9 (2004 – 2016)
8
Figure 4. Map of the subwatershed that feeds into the historic Black River.
AGENDA ITEM #6. e)
A synthesis of changes in our knowledge of Chinook salmon productivity and habitat uses in WRIA 9 (2004 – 2016)
9
Figure 5. Locations of previously undocumented Chinook spawning areas. Adapted from the WRIA 9
Habitat Limiting Factors and Reconnaissance Assessment 2000.
AGENDA ITEM #6. e)
A synthesis of changes in our knowledge of Chinook salmon productivity and habitat uses in WRIA 9 (2004 – 2016)
10
In the 2005 plan, a landslide located in the Middle Green near river mile 45.5 was singled out as
a concern because of potential sedimentation of redds. However, a subsequent assessment
indicated that there was no ongoing sedimentation impact from this slide (Booth 2012).
The gravel supplementation program (Plan Program M-1) has been implemented for over ten
years to supplement spawning gravel in the Middle Green to counteract the impacts of the HHD
which had starved the Middle Green of spawning gravels. Concerns had been expressed about
the high number of redds occurring in the immediate area supplemented with gravel and
because of the potential for redds to be undermined by the mobility of recently placed
substrate. In response to those concerns, the ACOE has modified how it places gravel and
reduced the size uniformity of the gravel to make it less mobile so that the gravel more slowly
gets incorporated into the river (Personal Communication Holly Coccoli, MIT, 2017).
Since plan adoption, different methods to estimate spawner abundance have been used and
explored by the co-managers. There are large differences in the escapement estimates created
by redd counting versus genetic mark-recapture. More work is needed to understand the
strengths and weaknesses of the different methods. This is predominately an issue to be
worked between the Co-managers, but it affects the WRIA in because of how much the
population abundance monitoring and tracking rely on the Co-managers’ data.
The MIT tagged and tracked adults shortly after entering the estuary in 2015, 2016, and, 2017,
with tags that included temperature gauges. They undertook this study due to gain a greater
understanding about the possible impacts of high water temperatures on adult Chinook
migrating through the lower river. Temperature gauges on and in the fish provide a more
accurate understanding about the conditions the fish experience while holding and migrating
through the river and can provide insight into if fish are finding and utilizing any cold water
refugia. Although the results of this research will not be available for this addendum to the
Strategic Assessment (Personal Communication Holly Coccoli, MIT, 2017), the results should be
tracked to see if different actions might be called for before the next 10 year update.
Anderson and Topping’s (2017) verified that spawning habitat in the Middle Green River is not
currently limiting the productivity of the Chinook salmon population; rather the lack of juvenile
rearing habitat is the primary limiting factor. No matter the number of spawners, a similar
number of parr are leaving the Middle Green each year.
Technical recommendations and potential implications for recovery actions :
Management Strategy 1 (also known as Policy MS-1) guides differentially allocating funding to
specific subbasins based on limiting factors and habitat needs, page 5-16 of the Salmon Plan.
This policy should be reviewed for relevancy given all the information we now have. It is often
difficult to determine how much an individual project improves spawning versus rearing habitat
when restoring riverine processes. At a minimum, the stipulation related to spending one third
of funding resources on spawning habitat restoration should be evaluated since spawning
habitat does not appear to be limiting the population at this time.
Devote resources to better understand the strengths and weaknesses of different methods of
counting spawner returns, and encourage use of the most accurate methods.
Continue to track the ACOE’s gravel supplementation effectiveness monitoring and the MIT’s
adult archival tagging monitoring effort. Consider incorporating findings into a plan update prior
to the next 10 year update if findings warrant it.
AGENDA ITEM #6. e)
A synthesis of changes in our knowledge of Chinook salmon productivity and habitat uses in WRIA 9 (2004 – 2016)
11
Floodplain Habitats
The Salmon Plan does not generally describe the floodplain’s value to salmonid rearing as much
as it notes the large acreage loss of connected floodplain area and the conversion of land cover
from forested floodplains to some form of developed land cover (industrial, residential and
agricultural). The most intensive changes in land use and development patterns occurred along
the banks of and within the floodplain of the Lower Green subwatershed (Strategic Assessment
2006).
Since plan adoption, there have been many papers out of the Sacramento River area (Summers
et al. 2001a and 2001b, 2004, 2005, Jeffres 2007, Feyrer et al. 2006, Moyle et al. 2007, Henry et
al. 2010, and Katz et al. 2013), Columbia River system (Lestelle et al. 2005) and the Chehalis
River (Henning 2004) showing that Chinook growth was greater for fish with access to the
floodplain versus those rearing in mainstem habitats only. It is theorized that the increased
growth rate is due to that they have access to a greater amount of food resources in the
floodplain than in the main channel and that the risk of stranding is offset by the potential for
increased growth rates. These papers describe how important floodplain habitats are to
juvenile Chinook growth in general and aid in understanding how the magnitude of habitat loss
in the Lower Green and to a lesser extent in the Middle Green have impacted juvenile Chinook
production locally.
The habitat area within the bank full width of mainstem channel in the Lower Green is
approximately 282 acres (unpublished King County GIS data 2017). Historically, the Lower
Green River had approximately 19,642 acres of connected floodplain (Collins and Sheikh 2004)
and currently has only 3,518 acres of partially connected floodplain. The estimate of the current
amount of connected floodplain was created by the WRIA 9 ITC in 2014 for the Lower Green
SWIF based on analyses of existing FEMA 100 year floodplain data that excluded the majority of
the right bank area within the City of Kent due to this area not really being connected in a
meaningful way for fish and the City’s efforts to bring all its levees in this area up to 100 year
flood protection. This amounts to a complete loss of 82% of floodplain area. The remaining 18%
of floodplain has very limited connectivity due a variety of factors (e.g. the White and Black
Rivers being diverted, HHD).
The timing of late winter and early spring flooding historically aligned with providing the early
migrating fry life history type with substantial slow, shallow water habitat in the floodplain
(WRIA 9 ITC 2012). Due to the loss of floodplain noted above (due to levees, HHD water
management, etc.) fry are now more much more restricted in extent of potential rearing
habitat, especially in the Lower Green.
Technical recommendations and potential implications for recovery actions :
The new information on the importance of floodplain habitats to juvenile Chinook growth
should be considered when prioritizing recovery actions.
Survival/Otolith Data:
Otoliths are ear bones in fish that look like a cross section of a tree, showing rings for each day of
growth. The bones are made up of the minerals that were available to the fish in its specific
environment. There are different levels of minerals, like strontium, in the marine and estuarine
environments that create a mark on the ear bone that allows one to determine how old juvenile
AGENDA ITEM #6. e)
A synthesis of changes in our knowledge of Chinook salmon productivity and habitat uses in WRIA 9 (2004 – 2016)
12
salmon were when they left freshwater and began rearing in estuarine/marine waters. This also
allows one to estimate what size they were when they entered salty water as well as look for
patterns around which juvenile life history types are surviving to adulthood. This data will not allow
us to compare the survival rate of all five life history types noted above. The format of the data
lumps the five types into three groupings of juveniles: yearlings, Middle/Lower Green Parr and
direct/estuarine fry.
Ruggerone and Volk (2004) looked at juvenile Chinook in the Duwamish toward the end of the
outmigration period. The results showed low surival of estuary reared Chinook, but these results
should be treated carefully as they evaluaterd a very small portion of a single migratory period.
Campbell and Claiborne (2017) indicated that the Duwamish estuarine rearing fry life history
type’s contribution to the adult return in 2015 was extremely low (<1%), based on a subsample
of adult otoliths analyzed as part of the larger Puget Sound Marine Survival project. Juveniles
that were smaller than 60mm in size when they began to rear in salt water were almost
nonexistent in the adult returning Chinook. Whereas the Skagit and Nooksack’s fry contribution
was 36% and 24%, respectively. This indicates other watersheds estuarine rearing fry types are
surviving to adulthood at much higher numbers than Green River’s. WRIA 9 provided WDFW
funding to collect adult otoliths from the 2016 and 2017 spawning seasons. Draft data for the
2016 adults found very similar results with less than 3% of the returning adults originating as
estuarine rearing fry (Personal Communication Lance Campbell). Based on smolt trap data, an
average of 60% of all juveniles migrate past the trap as fry. Some of these fry likely rear in the
Lower Green and become the Lower Green parr life history type, but based on other data
(Ruggerone et al. 2006, and Nelson et al. 2012) it is known that many of the fry rear in the
Duwamish (Figure 6). If we apply the recent otolith findings to the previous research looking at
size, abundance, and timing of fry using the estuary (Nelson et al. 2012, and Ruggerone et al.
2006) we see that fry in the Duwamish prior to early April did not survive to adulthood and
many fry from early April to mid-May also did not survive to adulthood. While still tentative
with only two years of similar data, the loss of almost all the fry that reared in the Duwamish is
severely limiting fry productivity, overall population productivity, and abundance, as well as
reducing overall life history diversity.
If the outcomes of the 2017 data collection and analyses, are similar to 2015 and 2016, the ITC
may need to reevaluate actions/recommendations made in specific subwatersheds, especially
the Duwamish shortly after this plan update has occurred.
There has been no new information on habitat use by yearling Chinook in the Green River. They
have been found in the past in the Lower Green River floodplain within channels of the two
larger streams that are accessible (Auburn Mill Creek and Mullen Slough). Limited data on fish
use by yearlings in the Snoqualmie River have shown them to use similar small stream channels
that are located within the floodplain of the Snoqualmie River. Draft work by Lance Campbell
showed that wild yearlings made up a small portion (~5%) of the returning adults in 2015 based
on a subsample of otoliths analyzed as part of the larger Puget Sound Marine Survival project
(Personal Communication with Lance Campbell, WDFW, 2017). Interestingly, this number
appears to be much larger than the percentage of yearlings outmigrating that have been
captured by WDFW’s smolt trap. There are several possible reasons for this. Fry and parr may
migrate past the trap and choose to reside for a year in accessible habitats of the Lower Green,
thus the trapping data would not record them as yearlings. It is known that the smolt trap has
greater trapping efficiency with smaller fish than yearlings, thus there could be higher numbers
of yearlings in the Middle Green, but they are able to avoid the trap when the outmigrate. And
finally, it is possible the trap is accurately estimating the number of yearlings leaving the Middle
Green. It is known that the larger fish are (like yearlings) when they outmigrate, the higher their
AGENDA ITEM #6. e)
A synthesis of changes in our knowledge of Chinook salmon productivity and habitat uses in WRIA 9 (2004 – 2016)
13
survival rate is to adulthood. This differential survival means that a very small number of
juveniles of this life history type could make up a much larger proportion of adults.
Figure 6. Shows juvenile Chinook timing from sampling that occurred in 2003, combined with
highlighting to show survival to adulthood based on 2015 and 2016 otolith data. The red
highlight shows timing and size of juveniles that would not survive to adulthood and the green
highlight showing highest survival based on 2015 and 2016 data. Adapted from Nelson et al.
2012.
Technical recommendations and potential implications for recovery actions :
See Duwamish subsection below for related recommendations.
Update strategies based on new findings after more years of otolith work are completed.
Conduct research to determine where yearling Chinook are currently rearing/overwintering, so
that these areas can be identified for protection and restoration. Begin by looking in small
stream channels along the mainstem Green River.
0
20
40
60
80
Jan 26 to Feb 22
0
20
40
60
80
100
120
Feb 23 to Mar 15
0
10
20
30
40
Mar 15 to Apr 5
0
10
20
30
40
Apr 6 to Apr 26
0
10
20
30
40
Apr 27 to May 17
0
10
20
30
40
May 18 to Jun 7
0
10
20
30
40
Jun 8 to Jun 28
0
10
20
30
40
30 40 50 60 70 80 90 100 110 120 130
Length (mm)
Jun 28 to Jul 27Number of Salmon
AGENDA ITEM #6. e)
A synthesis of changes in our knowledge of Chinook salmon productivity and habitat uses in WRIA 9 (2004 – 2016)
14
Combined with the floodplain subsection above, it provides more context to the value of
accessible floodplain habitats to provide habitat for fry, which do not appear to be surviving to
adulthood in large numbers.
Relevant Co-Manager Topics
As part of a recent update to the Hatchery Genetic Management Plan, the Co-managers
changed hatchery practices and began a new program to create unclipped ‘highly integrated’
hatchery juveniles. These hatchery juveniles are managed separately from the primary Soos
Creek hatchery fish and are reared and released farther upstream at the Pautzke ponds. Given
that these hatchery fish are not externally marked, it will be difficult to tell them apart from
naturally spawned fish. This is a concern because it will affect current monitoring protocols, and
affect WRIA 9’s monitoring approaches, assumptions, and recovery goals around the number of
natural origin adult returners as well as that more juvenile fish are being released and how that
higher number of hatchery fish may impact juvenile productivity.
The Research Framework noted that the historic run timing of Chinook returning to the Soos
Creek hatchery has been shifted three weeks earlier due to older (pre-1960s) hatchery practices.
Given that the Green River system has been managed as an integrated stock and that there has
been a higher proportion of hatchery fish on the spawning grounds than recommended in the
HSRG, it is assumed that the wild population’s timing was also shifted earlier. Bowerman et al.
2016 noted that spring and summer Chinook, which enter fresh water earlier than fall Chinook,
are more susceptible to energetic depletion and environmental stressors like high water
temperatures. The Green River Chinook population timing being shifted earlier likely has
negative impacts on abundance and productivity due to lower water levels and higher
temperatures, early emergence of fry before prey is available. Expected environmental and
habitat changes associated with climate change will only exacerbate those negative impacts.
NOTE: This issue may be best addressed via a recommendation for a future H-integration effort
to evaluate the broader issue.
Technical recommendations and potential implications for recovery actions:
Addressing climate change impacts on Chinook may require changing hatchery and harvest
practices, which are not within the WRIAs purview to directly affect or change. The WRIA
should work with the co-managers to lay out a process or framework where these technical and
policy issues can be discussed.
An ‘H’ integration process needs to be restarted and reinvigorated so that issues like the
number of hatchery adults spawning with wild fish and how the ‘highly integrated’ returning
adult fish effect HSRG goals related to managing integrated stocks, productivity of wild fish, as
well as monitoring and assessment efforts.
AGENDA ITEM #6. e)
A synthesis of changes in our knowledge of Chinook salmon productivity and habitat uses in WRIA 9 (2004 – 2016)
15
Subwatershed Specific Issues
Upper Green River
Program Upper Green 1 (U-1) is the development of planning effort focused on a long term
comprehensive restoration and planning approach for the upper watershed. It did not occur
prior to this Salmon Plan update.
The 2015 Mt. Baker-Snoqualmie National Forest: Forest-Wide Sustainable Roads Report was
recently completed. The Mount Baker-Snoqualmie Forest includes much of the Upper Green
River basin. It lays out the USFS recommendations for which forest roads to maintain and
abandon.
Since 2001, Tacoma Water has implemented several fisheries-related habitat conservation
measures projects under its habitat conservation plan. Briefly they include:
o Construction and operation of an adult fish trap and haul facility and downstream
juvenile bypass system at the Tacoma Water Municipal Intake (RM 61)
o Replacement of impassable culverts on twenty-five streams within the Upper Green
River
o In cooperation with the USACE, installation of individual LWD and ELJs within
approximately thirteen miles of the mainstem Upper Green River and approximately six
total miles of tributary stream
o Provided approximately 70 pieces of LWD annually from the Upper Green River for
release into the Middle Green River below the Tacoma Water Headworks
As part of the Additional Water Storage Project (AWSP), baseline habitat surveys were
conducted in 2005 and 2006 by R2 Resource Consultants, Inc. (R2) (2007). The first post-AWSP
survey was conducted by Tacoma Water in 2012 and 2013 (in review). The second post-AWSP
survey is scheduled to be conducted by Tacoma Water in 2017 and 2018. While habitat surveys
done by different crews or in different years can result in habitat changes that are not ‘real’ but
an artifact of surveyor bias, it is believed the statistical differences between years noted below
are real (Personal Communication Tyler Patterson, Tacoma Water, 2017).
The post ASWP in 2012 and 2013 habitat monitoring surveys were conducted on Tacoma Water-
owned portions of the mainstem river (RM 68-85) and several tributary streams, including the
Sunday Creek (RM 0-3.5), Smay Creek (RM 0-1.8), and the North Fork Green River (RM 0-2) and
compared against baseline surveys from six years prior by R2. Results indicated:
o Pool frequency (pools per channel width) and total pool area (feet2) improved
throughout the mainstem between surveys, while residual pool depth (feet) remained
about the same.
o Pool frequency increased substantially in the major tributaries of the Upper Green River
(i.e. Sunday Creek, Smay Creek and the NF Green River) between surveys. Total pool
area increased in Smay Creek and the NF Green River, but decreased slightly in Sunday
Creek. The decrease in Sunday Creek total pool area was due to a substantial decrease
in mean pool area. Like the mainstem, residual pool depths and canopy cover remained
relatively constant between surveys in these tributaries.
o Canopy cover did not change significantly between surveys, moving from a mean of 20%
in the baseline to 23% post-AWSP. The adjacent riparian areas along the mainstem and
major tributaries are within Tacoma’s “Natural” Forest Management Zone. This zone is
managed “to preserve health and vigor of the vegetative cover to reduce erosion and
provide habitat for fish and wildlife”. Substantial portions of the riparian areas within
AGENDA ITEM #6. e)
A synthesis of changes in our knowledge of Chinook salmon productivity and habitat uses in WRIA 9 (2004 – 2016)
16
this zone are still composed of young alder and black cottonwood with mature alder and
black cottonwood interspersed. Conifers are present but are mostly subdominant in
these areas. These immature canopy areas are adjacent to channel banks and appear to
the result of channel migration over time versus any active management measures. The
six year time span between surveys is not likely long enough to see significant
improvement in canopy-related shading overall.
o The frequency of Large Wood Debris (LWD) increased from 140 pieces mile to 208
pieces per mile between surveys and jam frequency increased from 4 jams per mile to 8
jams per mile. In comparison, the LWD and jam frequencies in the Middle Green River
in 2012 were 141 pieces mile and 4 jams per mile, respectively. Median bed surface
grain size (D50) decreased throughout the mainstem likely indicating increased
sediment storage capacity behind jams and sediment supply rates out pacing the
system’s ability to transport it. This is likely the result of that there has been an increase
in total LWD frequency from both engineered projects and natural bank input. Two
substantial high flow events (2006 and 2009) occurred between the baseline and first
post-AWSP surveys which likely increased natural LWD input, sediment supply (e.g. bank
erosion), and sediment storage.
o The frequency of LWD also increased substantially in all three tributaries, while the
frequency of log jams increased in Sunday Creek and remained about the same in Smay
Creek and the NF Green River (Table 2). A similar trend in sediment grain size seen in the
mainstem was observed in the three major tributaries with greatly reduced D50
between surveys.
Table 2. LWD and wood jam frequency comparisons between baseline and post-AWSP surveys for major
tributaries in the Upper Green River.
Major
Tributaries
LWD/mile Jams/mile
Baseline Post-AWSP Baseline Post-AWSP
Sunday Creek 238 317 7 12
Smay Creek 491 663 22 23
NF Green River 420 547 19 18
Technical recommendations and potential implications for recovery actions :
The habitat in the Upper Green is generally of higher quality than the Middle and Lower Green
River, but it is still inaccessible to anadromous fish. Given the continuing decline of Chinook
abundance, there is a strong and urgent need to provide access to this habitat.
Development of Program U-1 should be a high priority because a more in depth planning
process would help set priorities for remaining habitat issues in the Upper Green. WRIA 9 should
seek funding to do this work over the next three years. This process should be tracked, and
depending on the outcomes, another plan amendment should be considered at that time.
Middle Green River
Fish productivity associated with existing habitat conditions within the Middle Green River is
discussed in detail in Anderson and Topping (2017); their findings, likely apply in the Lower
AGENDA ITEM #6. e)
A synthesis of changes in our knowledge of Chinook salmon productivity and habitat uses in WRIA 9 (2004 – 2016)
17
Green River channel as well because that portion of the river provides the same rearing
functions as the Middle Green. Many of their findings reinforce background technical
information or assumptions in the Salmon Plan and Strategic Assessment, and provide greater
certainty that a lack of rearing habitat is the primary limiting factor. Some of their primary
findings are:
There is limited rearing habitat capacity (off channel habitats like side channels and
backwaters) for fry in the Middle Green, and this is likely one of the main factors
contributing to the early downstream migration of fry in large numbers. There is not
enough habitat for large numbers of fry to grow into parr. Thus, the limited habitat
capacity expresses itself by limiting the number of parr that can be produced, while the
number of fry produced does not get limited. Since it is assumed that parr survive to
adulthood at much higher rates than fry, the habitat limitation reduces our ability to
meet abundance, productivity, and diversity Viable Salmonid Population goals.
High flows (between 8,000 to 10,000 cfs*) from November through mid-January appear
to scour eggs in gravel, sharply reducing the overall productivity of the number of
juveniles per spawner.
High flows (between 6,000 to 8,000 cfs*) during typical fry outmigration period (mid-
January through the end of March) reduced the number of parr produced, likely
because fish were flushed into habitats downstream of the trap.
More days with spring flows (April through June) above 1,200 cfs* appears to increase
the number of parr produced. This is likely due to increased connectivity to off-channel
habitats, like side channels. A separate study (R2 2010) showed that as flows drop
below 1,200 cfs, side channel habitats become less connected to the mainstem Green.
*flow ranges are tentative and should be refined over time as more data is collected.
A combination of reports from R2 and Tacoma Water looked at habitat availability and juvenile
salmonid use in the Middle Green River over the last 15 years. The intent of the reports was to
be able to compare changes in habitat and fish use over time. However, due to agency priorities
and variations in annual weather/flow patterns, the results are not completely comparable. The
findings of each effort are synthesized here.
o The 2006 R2 report on fish use of lateral habitats showed high usage of mainstem slow
velocity habitats by juvenile Chinook between 1998 and 2002. However, the observed
use of these habitats may merely be a function of higher mean daily flow levels and
outmigration timing with more fish being flushed out of the system early. The sampling
design was not set up to evaluate habitat usage for different flow regimes, thus the
recommend that future studies be designed to incorporate different flow regimes. A
follow on study to evaluate the distribution of what habitats were available at different
flows (R2 2013) showed that 500 cfs flows produced the most slow water habitats
overall. However, most of the habitat was adjacent to unvegetated banks, was not
complex, and occurred after most juvenile Chinook have left the Middle Green River
making the amount of habitat available at 500 cfs less important. The transition point
for complex vegetated mainstem edge habitat and side channel habitats appeared to be
that as flows decreased below 1,200 cfs, wetted habitats begin to pull away from
complex vegetated banks and that the more heavily armored lower reaches of the
Middle Green had less slow velocity habitat available at all flows.
AGENDA ITEM #6. e)
A synthesis of changes in our knowledge of Chinook salmon productivity and habitat uses in WRIA 9 (2004 – 2016)
18
o Overall the R2 2013 report found that as flows increased more slow velocity lateral (off
channel) habitat became available, but slow velocity mainstem habitat decreased.
However, as flows decreased, more mainstem slow velocity habitats were available
while the amount of low velocity lateral habitats decreased.
o Juvenile use surveys of lateral habitat in 2011 were unable to sample sufficiently across
the four flow targets established by R2 in 2010 to find patterns of use related to flow
(Patterson et al. 2015). Most sampling occurred at relatively higher flows, with very
limited sampling in the 500 and 800 cfs range. Unlike the R2 2006 study, the 2011
juvenile salmonid use study (Patterson et al. 2015) found higher use of off channel
habitats than mainstem habitats. This higher use may be driven by the flow to habitat
relationship noted in the previous year’s habitat study, i.e., at higher flows there are
more slow velocity lateral habitats available than similar velocity mainstem habitats.
Since 2001 there has been a slow increase in pool frequency in two reaches of the Middle
Green, while the amount in the other three reaches was variable over time (R2 2012).
The amount of individual pieces of wood per mile has fluctuated, with the most recent data
(2012) showing 32.3 pieces per mile, with a high of 47.8 pieces per mile in 2009 and with a low
of 15 pieces per mile in 2001. However, while the number of jams has fluctuated between
years, there appears to have been a relatively steady increase in the number of jams per mile
(2001 0.8 jams/mile to 2012 4.2 jams/mile) (R2 2012).
Channel Dynamics Middle Green
o The extent and duration of higher flows are controlled by operations of the HHD.
Stream flow greater than 8,829 cfs (250 cms) as measured at the Auburn USGS gauge is
needed to force lateral bank migration, which in turn creates new off channel habitats
necessary for juvenile Chinook rearing (Konrad et al. 2011). For the purpose of relating
flow discharge to habitat, this report will refer to flow discharge in excess of 8,800 cfs as
“habitat forming flows”.
o Flow management at HHD prolongs the duration of moderate flows (>5,900cfs) by 39%
compared to historic conditions (Kerwin and Nelson 2000).
o Scour of redds begins between 5,000 and 8,000 cfs (R2 2014 Zone 1 nourishment gravel
stability). Thus, this report will refer to flow discharge in the range of 5,000-8,000 cfs as
“redd scouring flows” to differentiate these high flows from higher ones that can have
positive habitat benefits.
o Combining the findings above, flow management appears to be increasing the number
of days with redd scouring flows (directly reducing egg and fry survival) while at the
same time reducing the number of years that attain habitat forming flows (indirectly
leading to lower productivity through less off channel habitats created). Follow up
analyses should look at whether there has been a continued increase in the number of
days of “redd scouring flows” noted by Kerwin and Nelson (2000) and WRIA 9 ITC
(2012). Future Status and Trends reports should quantify this metric as well as number
of days of habitat forming flows (above 8,800 cfs).
MIT Draft smolt trapping data from Soos and Newaukum creeks (~2013-2016) indicate lower
survival rates in these streams than previously calculated previously by WDFW based on several
AGENDA ITEM #6. e)
A synthesis of changes in our knowledge of Chinook salmon productivity and habitat uses in WRIA 9 (2004 – 2016)
19
years of trapping. MIT data indicate that the primary Chinook life history type leaving the creeks
is fry, with very few fish rearing to parr size/age. (Personal Communication Holly Coccoli, MIT,
2017).
Technical recommendations and potential implications for recovery actions:
As supported by the numerous studies conducted in the Middle-Green subwatershed, there is a
need to increase off channel habitat availability, especially in the Middle Green (and Lower
Green River), in order to increase the abundance of habitat that can support more fry rearing to
parr sized juveniles, which have the highest likelihood of surviving to adulthood.
Given our improved understanding and certainty that a lack of fry habitat is a primary limiting
factor in overall abundance and productivity of the Chinook population, greater emphasis
should be placed on creating more rearing habitats in the Middle Green or more specifically,
removing infrastructure (levees and revetments) that limits of creation of and access to off
channel habitat. The Middle Green has undergone several project identification efforts in the
past. The projects that are most likely to create the type of necessary rearing habitat
unfortunately overlap with both the County’s ‘Upper Green Agricultural Production District as
well as many Farmland Protection Program easements. County agricultural policies and
programs create regulatory and implementation hurdles to implementing the aforementioned
high priority restoration projects in the Middle Green. With the ongoing downward trend in
Chinook abundance and the urgent need for more fry habitat, the Forum should engage the
County to facilitate implementation of high priority salmon projects.
Evaluate the raw data from the earliest R2 study in the Middle Green against flows during the
sampling periods to try to better understand the relationships between different flows and
habitat use seen in later reports.
The WRIA should work with Tacoma Water, the ACOE, and the MIT to look at how river flows
are managed to see if there is a way to limit the amount of “redd scouring flows” that occur
between 5,000 and 8,800 cfs that likely scour redds and/or flush fry out of the Middle Green,
but aren’t high enough to cause lateral channel migration, which is necessary for high quality off
channel rearing habitat creation.
Continued funding for the smolt trap is imperative. As can be seen above, the smolt trap has
been in the river enough years that we are able to undertake analyses that show trends related
to high and low flows and Chinook productivity. Some of the relationships are still tentative and
more data will allow us to have greater confidence in the relationships that have been seen, as
well as explore more relationships over time. These data are essential to Chinook recovery.
Lower Green River
The draft Retrospective, the Reddington Monitoring Report, the draft 2014 Juvenile Salmonid
Use of Aquatic Habitats in the Lower Green River study, and the 2013-2014 MIT/R2 Lower Green
Fish Use Report all describe differential use of some habitats by juvenile salmon use in the
Lower Green River. This indicates it can function as rearing habitat when conditions are
appropriate (e.g. off channel habitat exists).
o Statistically significant higher catch per unit of effort (CPUE) of wild Chinook along banks
with LWD (R2 2014a), though this finding was not replicated by the Retrospective work
(KC 2016).
AGENDA ITEM #6. e)
A synthesis of changes in our knowledge of Chinook salmon productivity and habitat uses in WRIA 9 (2004 – 2016)
20
o Shallow or gradually sloped banks with modest levels of LWD had greater CPUE of
juvenile salmonids than steep banks with high amounts of complex LWD. (R2 2014a).
o Created shallow/slow water habitats at Reddington and Riverview had higher CPUE of
juvenile Chinook than nearby vegetated and unvegetated steeper banks. The
Retrospective study (2016) also showed higher Chinook CPUE with gradual banks than
with slow water.
o Most of the studies did not focus on the depth of the sample areas as much as velocity
over a range of flows.
o The data on overhanging cover and CPUE of Chinook showed a statistically significant
decline in CPUE with increasing overhanging vegetation. However, areas with
overhanging vegetation are notorious difficult to sample and generally cannot be
sampled as efficiently as areas without overhanging vegetation. The likely catch biases
from the sampling approach used were not accounted for in any of the studies.
Therefore, the results should be treated carefully.
o None of the studies attempted to directly assess whether juvenile Chinook are residing
in the Lower Green or just passing through. Some of the data indicates juveniles are
keying in on some habitats, using them in higher numbers. This preferential use implies
fish are residing. More directed mark and recapture studies would help improve our
understanding of how long juvenile Chinook reside in Lower Green Habitats.
o In March of 2017, the recently restored Leber Homestead site on Mill Creek (Auburn)
was sampled twice, once during lower flow conditions (~1,300 cfs, about mean flow
during the January –June outmigration period) and once during high flow conditions
(~7,000 cfs, about an annual flood) (Gregersen 2017). A small area near the outlet was
being used by Chinook fry during lower flow conditions. During high flow conditions
three weeks later, Chinook fry were found throughout the larger restored area.
Interestingly, the fish that were present under low flow were roughly 5mm longer than
the fish that used the site during high flow three weeks later. One explanation of this
observation is that the earlier and larger fish at the restoration site migrated
downstream volitionally and were residing in productive habitat, whereas the smaller
juveniles three weeks later were likely unvolitionally flushed out of the Middle Green
and used the Leber site as flood refuge.
Recent surveys of juvenile salmon habitat conditions in the Lower Green show that conditions
are still very degraded (R2 2014b)
Initial analyses related to sediment loads of the river for the Lower Russell Road Project indicate
that there is a large amount of coarse and fine sand moving through the confined river channel.
There is concern that this large sediment load might quickly fill in restored/created off channel
habitats as the wider channel area will likely create depositional areas. The Salmon Plan
acknowledged that off-channel creation projects in the Lower Green would not be as
sustainable as true restoration projects and that maintenance would be needed occasionally for
those projects to function as fish habitat. The current concerns are focused around how often
maintenance would be needed and if the maintenance interval is financially sustainable.
Technical recommendations and potential implications for recovery actions :
A greater understanding is needed of where fry go when they leave the Middle Green River, and
if freshwater and estuarine rearing conditions downstream are conducive to fry rearing to parr
size and surviving to adulthood.
AGENDA ITEM #6. e)
A synthesis of changes in our knowledge of Chinook salmon productivity and habitat uses in WRIA 9 (2004 – 2016)
21
River bank stabilization/modification projects should strive to provide gradual slopes that
inundate over a large range of flows, with large woody cover instead of constructing projects
with steep slopes or benches that provide habitat at a very narrow range of flows.
In order to increase the number of fry that can grow into parr before entering the Duwamish,
off channel habitat availability should be increased, especially in the Middle Green and Lower
Green River.
Any major levee/bank set back project should consider how the project will be affected by
sediment movement and deposition, and how this will affect sediment conditions downstream.
Detailed monitoring is needed of existing setback projects like Riverview, Leber, and Reddington
to better understand potential maintenance intervals and risks associated with sedimentation.
Future juvenile salmonid use studies should attempt to:
o Sample different habitat types (side channels, backwaters, bars, etc.) versus different
bank types and with several methods (e.g. minnow traps, and electrofishing).
o Explore CPUE effort and depth of habitat.
o Focus on differences CPUE and overhanging vegetation to better inform project design
o Undertake a mark and recapture study to help improve our understanding of how long
juvenile Chinook reside in Lower Green Habitats.
Given the relatively low use of the broader Leber Homestead project site during lower flow
conditions, more directed fish use and water quality monitoring should be undertaken to try to
understand why more of the site is not being used by Chinook during lower flows.
Duwamish River
A significant research and planning effort, the Duwamish Blueprint, was completed in 2014 as part of
the WRIA 9 planning effort to help understand how juveniles use the estuary, and to identify restoration
opportunities. The first four bullets below are described in more detail in in the Duwamish Blueprint
(2014):
Ruggerone et al. 2006 found that the entire estuary, not just RM 4-6, was used by juvenile
Chinook, but by different life history types at different times of the rearing season. The
lowest, saltier area of the estuary was more heavily used by early fry migrants, while the
later, larger Chinook migrants (parr) had higher use of the area above RM 6. The Middle
portion of the estuary appeared to be more heavily used by the large pulse of later fry
migrants during late March, April and May.
Bigger inlets are likely better than smaller inlets for increased use of juvenile Chinook,
(Ruggerone et al. 2006, Cordell et al. 2010, and Toft and Cordell 2017)
The findings from Ruggerone et al. 2006, combined with data from other reports
(Ruggerone and 2004, Nelson et al. 2011, Oxborrow et al. 2016), and expected climate
change impacts on habitat area within the Duwamish, indicate we need bigger restoration
sites with more habitat heterogeneity (e.g. deeper water that would not drain out at low
tide and available shallow water habitat throughout the full tidal range).
Brackish waters appear to have higher growth potential based on prey availability than
more saline areas (Cordell et al. 2010).
Other recent findings not included with in the Duwamish Blueprint include:
David et al. 2016 found that variation in abundance of different species of arthropods (prey for
juvenile Chinook salmon) in estuaries across the west coast was driven predominately by types of
AGENDA ITEM #6. e)
A synthesis of changes in our knowledge of Chinook salmon productivity and habitat uses in WRIA 9 (2004 – 2016)
22
vegetation versus broad categories of land cover (e.g. developed, undeveloped, agricultural).
Arthropod abundance was highest in freshwater emergent and mixohaline wetland vegetation,
compared to scrub shrub wetlands and forested wetlands. Other physical environment factors that
are not readily modifiable by humans, like temperature and precipitation, were also found to
influence arthropod abundance. They also found that arthropod abundance in restored wetlands
rapidly achieved levels found in reference wetlands. They did find that while abundance was similar
in both newer and older restored sites, older sites had different arthropod assemblages, including
having more energy rich trichopterans than recently restored sites.
Recent sampling from Toft and Cordell 2017 found similar results to the previous sampling efforts.
Primarily, they found that the interior areas of restoration sites like Codiga and North Winds Weir
are being used at a higher rates/densities than nearby non restored habitats, though the differences
were not statistically different. Finding differences that are statistically significantly different can be
difficult with this type of sampling, especially when there is so little habitat available. Similarly, the
Herrings House restoration site continued to have relatively low use by juvenile salmonids.
Recent sampling by WDFW (O’Neill et al. 2015) and others showed that juvenile Chinook caught in
the lower part of the Duwamish River had levels of persistent organic pollutants (POPs), including
PCBs, and PAHs that may have adverse effects on fish health and growth rates, thus would be
expected to decrease overall productivity. However, based on the limited spatial sampling, it is not
clear if the POPs originated in the Duwamish or upstream in other parts of the watershed.
Work by Meador (2014) indicated that hatchery Chinook migrating through contaminated estuaries,
like the Duwamish, had a 45% lower marine survival rate than hatchery Chinook that migrated
through uncontaminated Puget Sound estuaries. He evaluated these findings against the total
amount of estuary habitat, length of freshwater habitat between each hatchery and estuary, as well
as growth rates and did not find these other factors to be explanatory of the lower survival rates
seen. He also cited work by Varanasi et al. 1993 that showed Chinook from the Soos Creek hatchery
and the Duwamish held in lab conditions for 40 days survived at a rate of 86% and 56%, respectively.
The experiment was repeated for a second year with similar results. It is important to note that this
specific evaluation looked strictly at hatchery Chinook and given their size at release they are not as
reliant on the estuary as wild Green River Chinook fry and parr would be. Thus the effects seen on
wild Chinook, that are more reliant on the estuary, would likely be more extreme.
Technical recommendations and potential implications for recovery actions :
The information from various previous Duwamish fish studies should be compared and
combined with the contaminant findings in the Water Quality white paper to see if there are
specific overlaps in timing and location that might be more problematic for certain life history
types/times of year.
An adaptive management plan or feasibility study should be completed to evaluate options to
improve the habitat use by salmonids at the Herrings House restoration site. At a minimum, it
has been suggested by Toft and Cordell 2017 that the inlet/outlet of the channel leading to the
restoration area is too narrow and should be widened and shortened to allow for greater
connectivity with the river. The site is generally dewatered during lower tides, thus it has also
been suggested it could be deepened to increase the amount of habitat available and the
duration of availability.
Results by David et al. 2016 show that restoring estuarine wetlands, especially freshwater
emergent and mixohaline wetlands, can increase arthropod prey species that juvenile Chinook
rely on fairly rapidly. This finding suggests that wetland restoration actions in the Duwamish
AGENDA ITEM #6. e)
A synthesis of changes in our knowledge of Chinook salmon productivity and habitat uses in WRIA 9 (2004 – 2016)
23
could have fairly quick benefits by providing both space to rear and food and that food resource
quality will improve over time.
The combination of recent sampling showing that juvenile Chinook from the Duwamish have
levels of contamination that may negatively affect survival as well as the 2015 and 2016 data
from Chinook otoliths showing few of the returning adults being from fry that reared in the
Duwamish from Jan through April is concerning. Unfortunately, both studies covered only a
short period of time and limited area, which means the level of certainty about the broader
applicability of the results is lower than what would generally be recommended for taking a
dramatically different course of action. In the near term, more studies are recommended to
create a better spatial understanding of Chinook contamination levels in the Lower Green and
Duwamish. This data would help to better understand contaminant patterns in juvenile Chinook
in comparison to known sediment contamination. In addition, it is recommended that more
years of otolith data on survival to adulthood of different life history types be collected.
The Lower Duwamish Waterway Superfund Site (RM 0 to 5) is currently in pre-design study
phase. The next phase will include signing of responsible parties to a Consent Decree to
perform the work as well as the detailed design of the sediment cleanup; both of these together
are expected to take approximately 3-5 years. The in-water construction (e.g., dredging and
capping of contaminated sediments), which follows design phase, has been estimated to take 7
years. The construction phase of the sediment cleanup, which will be followed by a period of
natural recovery, may not be completed until after the 2028 time horizon of this Salmon Plan
update. Given the Superfund cleanup timeline, WRIA led salmon habitat restoration projects in
the Duwamish should be undertaken cautiously. It is currently not known if clean up actions will
occur from upstream to downstream, but current source control strategy by Dept. of Ecology is
planned for an upstream to downstream approach. This will likely reduce the risks of
recontaminating WRIA sponsored salmon habitat restoration projects, but not eliminate the
risks of recontamination. The areas of lower contamination, and thus less cleanup construction,
are found in the upper mile of the waterway (RM 4-5). Thus restoration projects sponsored or
funded by the WRIA in upper portion of the waterway could begin before full completion of the
sediment cleanup with relatively lower risk of being recontaminated by cleanup activities. Until
more information is available, a conservative project approach for WRIA funded capital projects
over the next ten years in the Duwamish would be to continue to implement projects from the
Duwamish Blueprint while taking the following into account:
o The WRIA should invest resources into a monitoring/research study to evaluate if
previously constructed WRIA restoration projects within the Duwamish have become
contaminated.
o For all areas of the Duwamish, emphasize acquiring and restoring the largest sites
possible in order to provide a variety of elevations and slopes within the restoration
sites to accommodate climate change and reduce the impacts of “coastal squeeze” (see
climate change paper for more details), as well as having enough space to create
habitats that retain at least a foot of water at low tide. Restoration sites should be
designed with large openings, and focused on areas with brackish waters (typically
where streams enter the Duwamish River or there is a reduced influence of the salt
wedge).
o From river mile 0 to 4.3 (just upstream of Slip 6), given the known contamination and
long timeline for intended clean up actions of the primary area of the Superfund site:
Focus WRIA salmon recovery resources on acquiring large parcels for future
restoration projects versus actually undertaking restoration projects until issues
AGENDA ITEM #6. e)
A synthesis of changes in our knowledge of Chinook salmon productivity and habitat uses in WRIA 9 (2004 – 2016)
24
associated with current contamination and potential recontamination are better
understood or addressed.
Work with parties responsible for implementing Natural Resource Damage
Assessment (NRDA) projects to find ways to enhance or enlarge project sizes
with the intent of increasing the ecological benefits.
o River mile 4.3 to 11: while it is much less contaminated than the downstream reach, it is
still known to have some sediment contamination. The section from RM 4.3 to 5.0 is still
located within the Superfund site, though remedial actions (e.g. dredging) that could
have a higher likelihood of leading to recontamination are fewer in number and smaller
in size.
Same as conditions noted above, but if a WRIA salmon habitat project sponsor
moves forward with salmon restoration projects in this reach, it is
recommended that the WRIA work with the project sponsor to fund more
extensive feasibility analyses that evaluate the existing contamination issues as
well as the likelihood of recontamination of the salmon habitat restoration site
before fully funding the design phase of the project.
Nearshore
The bulk of the findings from the many new studies on marine nearshore habitat and fish uses issues
reinforce or put more certainty behind previous findings and/or assumptions versus providing new
information that would generally change the Salmon Plan’s nearshore programs, priorities, or projects
associated with the marine nearshore environments. Somewhat unusual, is that most of the recent
literature for Puget Sound is based on data collected along various areas of WRIA 9’s marine shoreline,
which provides greater certainty about the applicability of the findings to the WRIA. Figure 7 below
summarizes many of the findings from work over the last five to ten years (Dethier et al. 2016)
AGENDA ITEM #6. e)
A synthesis of changes in our knowledge of Chinook salmon productivity and habitat uses in WRIA 9 (2004 – 2016)
25
Figure 7. Temporal and spatial scales at which different types off impacts of armoring can be detected.
Impacts in dashed boxes are hypothesized but not thoroughly demonstrated. Speed of responses
following restoration (armor removal) may follow the same temporal and spatial patterns (Modified
from Dethier et al. 2016).
The primary recent findings include:
Armored versus not armored shorelines.
a. Importance of vegetated riparian areas near the marine shoreline for Chinook salmon
has been verified via diet analysis within Elliott Bay. The research showed Chinook
salmon rearing along developed shorelines with riparian vegetation had more terrestrial
insects in their diet than Chinook rearing along developed shorelines without riparian
vegetation had far fewer terrestrial insects in their stomachs (Toft et al. 2007).
b. Differences in predominately armored versus unarmored drift cells have shown impacts
to sediment processes (Dethier et al. 2016) that create skinnier beaches, beaches with
fewer drift logs, and beaches with fewer prey species, etc. However, there has not been
as much work to look for a direct link to Chinook salmon.
c. Rice 2006 showed that armored beaches get more sunlight (due to less riparian
vegetation being present), which in turn causes higher air temperatures, which in turn
leads to hotter substrate temperatures, which in turn leads to reduced humidity. At a
minimum, this combination of environmental changes leads to reduced forage fish egg
survival on armored beaches compared to unarmored beaches. The environmental
changes likely lead to many other similar biological responses, but they have not been
studied yet.
AGENDA ITEM #6. e)
A synthesis of changes in our knowledge of Chinook salmon productivity and habitat uses in WRIA 9 (2004 – 2016)
26
d. Recent report showed that vegetated shorelines significantly contribute to the detritus
on adjacent beaches versus it all being marine derived, helping drive the detrital food
web (Dethier et al. 2016, Heerhartz). This further reinforces the importance of marine
riparian areas.
e. Toft et al. 2014 showed that the beach restoration at Seahurst Park had mixed results in
how quickly the site’s biological community re-established in density and richness
compared to a nearby restoration site. The higher beach invertebrate community most
quickly recovered to close to reference conditions, while the invertebrate community at
the mid tidal elevations was much slower to respond. It is not clear if the slower
response was caused by long term armoring impacts or by the beach nourishment
restoration action.
f. Before and after monitoring of the Olympic Sculpture Park (Toft et al. 2013) showed:
increased densities of larval fishes, increased densities of juvenile salmon, increased
observance of juvenile feeding behavior, and had different invertebrates, and higher
invertebrate taxa richness than nearby armored shorelines. All of these positive changes
in habitat condition or use occurred on a site that is highly constrained, has high public
use, and is surrounded by a highly urbanized environment.
g. Munsch et al. 2016 found smaller juvenile salmon preferentially utilized low gradient
shorelines, which were mostly unarmored, while larger juvenile salmon were associated
with armored shorelines with deeper water and higher gradient transitions.
h. Munsch et al. 2014 found that fish assemblages were different for seawall versus
created beach sites in Elliot Bay. They found that chum and pink salmon were
correlated with the beach sites at high tide while chum, pink and Chinook salmon were
correlated with beach sites at low tides. They also found similar results to past studies
that found most fish species avoided the heavily shaded areas under the piers in
downtown Seattle.
i. Munsch et al. 2015a found that for the diets of juvenile Chinook that insects were more
abundant in smaller juvenile Chinook, while crab larvae were more abundant in larger
juvenile Chinook. Chum salmon were found to preferentially consume harpacticoid
copepods which had greater taxa richness at the beach habitats, but also found that
they selected planktonic prey species predominately associated with armored shores.
j. Munsch et al. 2015b found that fish species that are strongly associated with the bed of
Puget Sound were impacted by the changes caused by shoreline armoring. They found
fewer flatfish species associated with rocked/armored shorelines, while they found
more lingcod associated with the armored shorelines. The flatfish results were similar
to the results of Toft et al. 2007, where they found the densities of flatfish were reduced
by shoreline armoring.
k. Recent Puget Sound data has shown shoreline armoring impacts bird species, reducing
the likelihood of song birds and shorebird presence, while increasing the frequency of
gulls and crows. The results are similar to findings in California (Dugan et al. 2008). This
information shows that there is a multi-species benefit to the removal of shoreline
armoring (Heerhartz 2013).
Beamer et al. 2013 looked at fry migrant Chinook use of non-natal streams along the marine
shorelines in north of WRIA 9. While they did not directly sample streams in WRIA 9, they did
find four factors that appeared to determine whether fry migrant Chinook would use non-natal
streams: distance from a Chinook bearing stream/river; watershed area greater than 45
hectares; stream gradient less than 6.5%; and absence of a culvert at the mouth of the creek.
AGENDA ITEM #6. e)
A synthesis of changes in our knowledge of Chinook salmon productivity and habitat uses in WRIA 9 (2004 – 2016)
27
A 2014 Report has shown that new unpermitted armor has offset many of the restoration gains
by the WRIA as of 2014, and many repairs to armoring are not going through the permit process
(Higgins 2014).
New surveys by WDFW show that forage fish spawn close to year round within the South
Central Basin (unpublished data WDFW), combined with previous work on the importance of
marine riparian vegetation for forage fish survival point to increased importance of riparian
vegetation in WRIA 9, especially in south facing shorelines (Rice 2006).
A new population of herring was found spawning in small numbers in Elliott Bay, near the
Seattle Art Museum’s Olympic Sculpture Park in 2012. It is not clear what the parent stock is for
this new spawning aggregation, or how long they have been spawning in Elliott Bay (Stick et al
2014). Given herring are an important food source for salmon, understanding this new
population would be advantageous so it can be protected and enhanced.
Technical recommendations and potential implications for recovery actions :
Using the approach by Beamer et al. 2013, an analysis should be done of coastal streams
throughout WRIA 9 to help prioritize which streams are most likely to support non-natal use by
fry migrant Chinook so that those areas can be prioritized for future funding.
Findings by Munsch et al. 2016 point to the need to provide shallow water edge habitats in the
marine environment, especially for the younger fry migrants that are smaller and in greater
need of shallow habitats. Given the lower survival rates of the fry life history type noted in
other sections above, providing this shallow water habitat like the pocket beach at the Olympic
Sculpture Park should be a higher priority closer to the Duwamish where small salmonids first
transition to the marine environment.
Future beach nourishment projects, like Seahurst Park, should be evaluated in a similar fashion
as in Toft et al. 2014 to see if lower tidal elevations also experience slow recovery of
invertebrate populations. Designs and monitoring should be implemented in a way to help
differentiate the original impact of the shoreline armor versus the nourishment actions.
Undertake more spring and summer spawner surveys of forage fish in order to better
understand how important riparian areas are to forage fish spawning in the WRIA 9 area are,
especially for south facing beaches.
The issue of a high percentage of marine shoreline actions like bulkhead repairs and tree
clearing being unpermitted, needs to be addressed or restoration gains will continue to offset by
new impacts.
Continue to focus on restoring sediment recruitment and transport processes.
AGENDA ITEM #6. e)
A synthesis of changes in our knowledge of Chinook salmon productivity and habitat uses in WRIA 9 (2004 – 2016)
28
References by Section
General & non-Green River specific
1. Bowerman, Tracy, M. Keefer, C. Caudill, 2016. Pacific Salmon Prespawn Mortality: Patterns,
Methods, and Study Design Considerations. Fisheries, Vol. 41, No12.
2. Bryant, Mason D., 2000. Estimating Fish Populations by Removal Methods with Minnow Traps
in Southeast Alaska Streams. North American Journal of Fisheries Management, 20: 923-930.
3. Feyrer, Fredrick, T. Sommer, and W. Harrell. 2006. Importance of Flood Dynamics versus
Intrinsic Physical Habitat in Structuring Fish Communities: Evidence from Two Adjacent
Engineered Floodplains on the Sacramento River, California. North American Journal of
Fisheries Management, 26:408-417.
4. Harza 1995. Comprehensive Fisheries Assessment of Springbrook, Mill and Garrison Creek
Watershed for the City of Kent. Bellevue, Washington.
5. Henry, R. E., T.R. Sommer, C. R. Goldman, 2010. Growth and Methylmercury Accumulation in
Juvenile Chinook salmon in the Sacramento River and Its Floodplain, the Yolo Bypass.
Transactions of the American Fisheries Society 139:550-563.
6. Henning, Julie, 2004. An evaluation of fish and amphibian use of restored and natural floodplain
wetlands. Prepared by Washington Department of Fish and Wildlife for Environmental
Protection Agency, Region 10.
7. Jeffres, C. A., J. J. Opperman, and P. B. Moyle. 2008. Ephemeral floodplain habitats provide best
growth conditions for juvenile Chinook salmon in a California river. Environmental Biology of
Fishes 83:449-458.
8. King County, 2005. WRIA 9 Strategic Assessment Report-Scientific Foundation for Salmonid
Habitat Conservation. Prepared for WRIA 9 Steering Committee, by King County Water and Land
Resources Division, Seattle WA.
9. Kubo, J., 2017. Green River Temperature and Salmon. Prepared for the WRIA 9 Implementation
Technical Committee, by King County Water and Land Resources Division, Seattle, WA.
10. Lestelle, L.C., McConnaha, W.E., Blair, G., Watson, B., 2005. Chinook salmon use of floodplain,
secondary channel, and non-natal tributary habitats in rivers of western North America, Report
prepared for the Mid-Willamette Valley Council of Governments, U.S. Army Corps of Engineers,
and Oregon Department of Fish and Wildlife, Vashon, WA and Portland, OR.
11. Moyle, P. B., P. K. Crain, and K. Whitener. 2007. Patterns in the use of a restored California
floodplain by native and alien fishes. San Francisco Estuary and Watershed Science 5
12. Price, David M., T. Quinn, and R.J. Barnard, 2010. Fish Passage Effectiveness of Recently
Constructed Road Crossing Culverts in the Puget Sound Region of Washington State. North
American Journal of Fisheries Management 30.5: 1110-1125
13. Quinn, T.P. 2005. The behavior and ecology of Pacific salmon and trout. University of
Washington Press, Seattle, WA.
14. Ruggerone, G.T. and D. E. Weitkamp 2004. WRIA 9 Chinook Salmon Research Framework.
Prepared for WRIA 9 Steering Committee. Prepared by Natural Resource Consultants, Inc., and
Parametrix, Inc. Seattle WA.
15. Sommer, T., B. Harrell, M. Nobriga, R. Brown, P. Moyle, W. Kimmerer, and L. Schemel. 2001a.
California's Yollo Bypass: Evidence that flood control can be compatible with fisheries, wetlands,
wildlife, and agriculture. Fisheries 26:6-16.
16. Sommer, T. R., W. C. Harrell, and M. L. Nobriga. 2005. Habitat use and stranding risk of juvenile
Chinook salmon on a seasonal floodplain. North American Journal of Fisheries Management
25:1493-1504. Sommer, T. R., W. C. Harrell, A. M. Solger, B. Tom, and W. Kimmerer. 2004.
AGENDA ITEM #6. e)
A synthesis of changes in our knowledge of Chinook salmon productivity and habitat uses in WRIA 9 (2004 – 2016)
29
Effects of flow variation on channel and floodplain biota and habitats of the Sacramento River,
California, USA. Aquatic Conservation: Marine and Freshwater Ecosystems 14:247-261.
17. Sommer, T. R., M. L. Nobriga, W. C. Harrell, W. Batham, and W. J. Kimmerer. 2001b. Floodplain
rearing of juvenile Chinook salmon: evidence of enhanced growth and survival. Canadian Journal
of Fisheries and Aquatic Sciences 58:325-333.
18. United States Army Corps of Engineers, 1998. Final Feasibility Study Report and Final
Environmental Impact Statement. Seattle District.
19. WRIA 9 ITC, 2012. WRIA 9 status and trends monitoring report: 2005-2010. Seattle WA.
Upper Green
1. Patterson et al. 2016 (DRAFT). Upper Green River Post-AWSP Habitat Monitoring: 2012/2013
Report. Tacoma Public Utilities – Water Division, Tacoma, WA.
2. R2 Resource Consultants (R2). 2007. Upper Green River Baseline Habitat Monitoring: 2005/2006
Report. Prepared for the US Army Corps of Engineers, Seattle District, Seattle, WA.
3. Winans, G. A., M. Baird, J. Baker, 2010. A Genetic and Phenetic Baseline before the
recolonization of Steelhead above Howard Hanson Dam, Green River, Washington.
Middle Green
1. Anderson, J. H. and P. C. Topping, 2017. Draft Juvenile Life History Strategies and freshwater
productivity of Green River Chinook Salmon. Prepared for the WRIA 9 Implementation Technical
Committee, Seattle WA.
2. Booth, D.B., J.B. Lando, E.A. Gilliam, T.E. Lisle, 2012. Investigation of fine sediment and its effect
on salmon spawning habitat in the Middle Green River, King County, Washington.
3. Patterson, T., L. Sievers, R. Lamb, J. Lowry, and G. Volkhardt. 2015. 2011 RFM-02A Middle Green
River Juvenile Salmonid Use Study. Tacoma Public Utilities Water Division, Tacoma Washington.
4. Konrad, C., H. Berge, R. Fuerstenberg, K. Steff, T. Olsen and J. Guyenet. 2011. Channel dynamics
in the Middle Green River, Washington, from 1936 to 2002. Northwest Science 85:1-14.
5. R2 Resource Consultants (R2). 2013. Monitoring of Juvenile Salmonid Habitat in Relation to
Streamflow in the Middle Green River, Washington, Draft 2010 Data Report for the U.S. Army
Corps of Engineers, Seattle District.
6. R2 Resource Consultants (R2). 2006. Juvenile salmonid use of lateral habitat in Middle Green
River, Washington, final data report for the U.S. Army Corps of Engineers, Seattle District.
7. R2 Resource Consultants (R2). 2013. Middle Green R. Habitat, Large Woody Debris Monitoring
8. R2 Resource Consultants (R2) 2014. Zone 1 Nourishment Gravel Stability Green River,
Washington 2011/2012 monitoring results
9. Topping, P. C. and J. H. Anderson, 2014. Green River Juvenile Salmonid Production Evaluation:
2013 Annual Report.
Lower Green
1. Gregersen, C. 2017. Draft 2014 Juvenile Salmonid Use of Aquatic Habitats in the Lower Green.
King County Water and Land Resources Division. Seattle WA.
2. Lucchetti, G., K. Higgins, and J. Vanderhoof, 2014. A salmon-based classification to guide best
management practices for agricultural waterways maintenance. King County Water and Land
Resources Division, Seattle WA.
3. McCarthy, S., C. Gregersen, K. Akyuz, L. Brandt, and J. Koon. 2014. Reddington levee setback
project year 1 monitoring report. Water and Land Resources Division, King County. Seattle,
Washington
AGENDA ITEM #6. e)
A synthesis of changes in our knowledge of Chinook salmon productivity and habitat uses in WRIA 9 (2004 – 2016)
30
4. McCarthy, S., C. Gregersen, K. Akyuz, L. Brandt, and J. Koon. 2014. Reddington levee setback
project year 1 monitoring report. Water and Land Resources Division, King County. Seattle,
Washington
5. R2 Resource Consultants (R2). 2014. Lower Green/Duwamish River habitat Assessment.
Duwamish
1. Campbell, Lance. 2017. New Otolith Study by WDFW from 2016 CWM grant. Results likely
available late spring.
2. Cordell, J., J. Toft, A. Gray, G. Ruggerone, and M. Cooksey. 2011. Functions of restored wetlands
for juvenile salmon in an industrialized estuary. Ecological Engineering 37:343-353.
3. Cordell, J., J. Toft, M. Cooksey, and A. Gray. 2006. Fish Assemblages and Patterns of Chinook
Salmon Abundance, Diet, and Growth at Restored Sites in the Duwamish River. In 2005 Juvenile
Chinook Duwamish River Studies. University of Washington, Seattle, WA.
4. David, A.T., P.A.L. Goertler, S.H. Munsch, B.R. Jones, C.A. Simenstad, J.D. Toft, J.R. Cordell, E.R.
Howe, A.Gray, M.P. Hannam, W. Matsubu, and E.E. Morgan. 2016. Influences of Natural and
Anthropogenic Factors and Tidal Restoration on Terrestrial Arthropod Assemblages in West
Coast North American Estuarine Wetlands. Estuaries and Coasts, 39: 1491
5. ICF International, 2010. Duwamish River Navigation Maintenance Dredging FY 2010: Water
Quality Monitoring and Salmonid Report. Final Report; Seattle WA.
6. King County 2013. Draft. Juvenile Chinook Migration, Growth and Habitat Use in the Lower
Green and Duwamish Rivers and Elliot Bay Nearshore. King County Department of Natural
Resources and Parks, Water and Land Resources Division, Seattle WA.
7. Meador, J. P. 2014. Do chemically contaminated river estuaries in Puget Sound (Washington,
USA) affect the survival rate of hatchery-reared Chinook salmon? Canadian Journal of Fisheries
and Aquatic Sciences 71:162-180.
8. Morely, S., J. Toft, and K. Hanson. 2012. Ecological Effects of Shoreline Armoring on Intertidal
Habitats of a Puget Sound Urban Estuary. Estuaries and Coasts. Springerlink.com.
9. Oxborrow, B., J.R. Cordell, and J. Toft, 2016. Draft: Evaluation of Selected U.S. Army Corps of
Engineers Habitat Restoration Projects, 2016. School of Aquatic and Fishery Sciences, University
of Washington.
10. O’Neill, Sandra M., A. J. Carey, J.A. Lanksbury, L.A. Niewolny, G. Ylitalo, L. Johnson, and J.E. West,
2015. Toxic Contaminants in Juvenile Chinook Salmon (Oncorhynchus tshawytscha) migrating
through estuary, nearshore and offshore habitats of Puget Sound.
11. Ostergaard, E., D. Clark, K. Minsch, S. Whiting, J. Stern, R. Hoff, B. Anderson, L. Johnston, L.
Arber, and G. Blomberg. 2014. Duwamish Blueprint: Salmon Habitat in the Duwamish Transition
Zone. Prepared by the Duwamish Blueprint Working Group for the WRIA 9 Watershed
Ecosystem Forum. Seattle, WA.
12. Ruggerone, G. T. and E. Jeanes. 2004. Salmon utilization of restored off-channel habitats in the
Duwamish Estuary, 2003. Draft. Prepared for Environmental Resource Section, U.S. Army Corps
of Engineers, Seattle District. Prepared by Natural Resources Consultants, Inc. and R2
Consultants, Inc. Seattle, Washington
13. Ruggerone, G., T. Nelson, J. Hall, E. Jeanes, J. Cordell, J. Toft, M. Cooksey, and Ayesha Gray.
2006. 2005 Juvenile Chinook Duwamish River Studies. Habitat Utilization, Migration Timing,
Growth, and Diet of Juvenile Chinook Salmon in the Duwamish River. Seattle, WA
14. Ruggerone, G. T. and E. C. Volk. 2004. Residence time and growth of natural and hatchery
Chinook salmon in the Duwamish Estuary and Elliott Bay, Washington, based on otolith chemical
and structural attributes. Report to Army Corps of Engineers, Seattle District and Port of Seattle.
AGENDA ITEM #6. e)
A synthesis of changes in our knowledge of Chinook salmon productivity and habitat uses in WRIA 9 (2004 – 2016)
31
15. Simenstad, C., C. Tanner, C. Crandell, J. White, J. Cordell. 2005. Challenges of habitat restoration
in a heavily urbanized estuary: evaluating the investment. Journal of Coastal Research. 40:6-23.
16. Toft, Jason D. and J.R. Cordell, 2017. Densities of Juvenile Salmon at Restored Sites in the
Duwamish River Estuary Transition Zone, 2016, School of Aquatic and Fishery Sciences,
University of Washington.
17. U.S. Army Corps of Engineers, 2013. Duwamish River Fish Sampling Effort January-February
2013.
Nearshore
1. Beamer, E.M., W. T. Zackey, D. Marks, T. Teel, D. Kuligowski, and R. Henderson. 2013. Juvenile
Chinook salmon rearing in small non-natal streams draining into the Whidbey Basin. Skagit River
System Cooperative, LaConner, WA.
2. Duffy, E. J. and D. A. Beauchamp. 2011. Rapid growth in the early marine period improves the
marine survival of Chinook salmon (Oncorhynchus tshawytscha) in Puget Sound, Washington.
Canadian Journal of Fisheries and Aquatic Sciences 68:232-240.
3. Dethier, M.N., W.W. Raymond, A.N. McBride, J.D. Toft, J.R. Cordell, A.S. Ogston, S.M. Heerhartz,
and H.D. Berry. 2016. Multiscale impacts of armoring on Salish Sea shorelines: Evidence for
cumulative and threshold effects. Estuarine, Coastal and Shelf Science 175:106-117.
4. Dugan, J.E., Hubbard, D.M., Rodil, I.F., Revell, D.L. & Schroeter, S. (2008). Ecological effects of
coastal armoring on sandy beaches. Mar. Ecol., 29, 160-170
5. Heerhartz, S.M., Dethier, M.N., Toft, J.D., Cordell, J.R., Ogston, A.S., 2014. Effects of shoreline
armoring on beach wrack subsidies to the nearshore ecotone in an estuarine fjord. Estuary and.
Coasts 37, 1256e1268. http://dx.doi.org/10.1007/s12237-013-9754-5 Publication: Multiscale
impacts of armoring on Salish Sea shorelines: Evidence for cumulative and threshold effects.
6. Heerhartz, S.M., Toft, J.D., Cordell, J.R., Dethier, M.N., Ogston, A.S., 2015. Shoreline armoring in
an estuary constrains wrack-associated invertebrate communities. Estuary and Coasts.
7. Heerhartz, S.M. 2013. Shoreline armoring disrupts marine-terrestrial connectivity across the
nearshore ecotone. School of Aquatic and Fishery Sciences, University of Washington, PhD
dissertation.
8. Higgins, K. F. 2014. WRIA 9 Marine Shoreline Monitoring Compliance Pilot Project, King County
Department of Natural Resources. Seattle WA.
9. Munsch, S.H., J.R. Cordell, J.D. Toft, and E.E. Morgan. 2014. Effects of Seawalls and Piers on Fish
Assemblages and Juvenile Salmon Feeding Behavior. North American Journal of Fisheries
Management, 34:814-827
10. Munsch, S.H., J.R. Cordell, and J.D. Toft. 2015a. Effects of seawall armoring on juvenile Pacific
salmon diets in an urban estuarine embayment. Marine Ecology Progress Series, Vol. 535: 213-
229.
11. Munsch, S.H., J.R. Cordell, and J.D. Toft. 2015b. Effects of shoreline engineering on shallow
subtidal fish and crab communities in an urban estuary: A comparison of armored shorelines
and nourished beaches. Ecological Engineering, V 81, 312-320.
12. Munsch, S.H., J.R. Cordell, and J.D. Toft. Fine scale habitat use and behavior of a nearshore fish
community: nursery functions, predation avoidance, and spatiotemporal habitat partitioning.
Marine Ecology Progress Series, Vol 557: 1-15.
13. Rice, C.A. 2006. Effects of shoreline modification in northern Puget Sound: beach microclimate
and embryo survival in summer spawning surf smelt (Hypomesus pretiosus). Estuaries and
Coasts 29(1):63-71.
14. Sitck, K.C., A. Lindquist, and D. Lowry. 2014. 2012 Washington State Herring Stock Status
Report. Washington Department of Natural Resources, Olympia WA.
AGENDA ITEM #6. e)
A synthesis of changes in our knowledge of Chinook salmon productivity and habitat uses in WRIA 9 (2004 – 2016)
32
15. Toft, J.D., J.R. Cordell, C.A. Simenstad, and L.A. Stamatiou. 2007. Fish distribution, abundance,
and behavior along city shoreline types in Puget Sound. North American Journal of Fisheries
Management 27: 465-480.
16. Toft, J.D., A.S. Ogston, S.M. Heerhartz, J.R. Cordell, E.E. Flemer. 2013. Ecological responses and
physical stability of habitat enhancements along an urban armored shoreline. Ecological
Engineering, 57, 97-108.
17. Toft, J.D., J.R. Cordell, and E.A. Armbrust. 2014. Shoreline armoring impacts and beach
restoration effectiveness vary with elevation. Northwest Science 88:367-375
AGENDA ITEM #6. e)
Green-Duwamish and Central Puget Sound Watershed Salmon Habitat Plan • November 2020 PAGE
C-1
ROGER TABOR
An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed
King County Science and Technical Support Section i January 2018
AcknowledgementsThe author would like to thank Kollin Higgins for contributing references on juvenile Chinook ecology and providing feedback on report drafts. Elissa Ostergaard provided early feedback on the report outline and partial draft. Matt Goehring reviewed two full drafts of the report and Deborah Lester, Debra Williston, and Jeff Stern provided valuable comments on the draft final report. Many thanks to the WRIA 9 ITC members for contributing helpful feedback throughout paper development. CitationKing County. 2018. An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon in the Green-Duwamish Watershed. Prepared by Jenée Colton, Water and Land Resources Division. Seattle, Washington for the WRIA 9 Watershed Ecosystem Forum.
Appendix C:
Green River Temperature and Salmon
AGENDA ITEM #6. e)
1
Green River Temperature and Salmon
Technical Briefing for the Implementation Technical Committee
By Josh Kubo
February 27, 2017
WRIA 9 Technical Briefing Rationale
Warm water temperatures influence salmonid survival in WRIA 9
Three areas in the Green River watershed have temperature TMDLs (completed or are still in process of
completion): Middle and Lower Green River, Soos Creek, and Newaukum Creek
The WRIA 9 Forum recently adopted a new conservation hypothesis (All-7) that focuses on improving
water temperature and reducing chemical contamination. This briefing documents the scientific basis
for that decision, discusses known human impacts to water temperature, and discusses key actions that
can improve water temperature.
Water Temperature Drivers and Cold Water Refugia
Factors influencing Stream Temperature (2, 5, 8, 10, 12, 16, 21, 35, 37, 42, 71, 75, 89, 94, 99)
Climatic drivers (e.g., solar radiation, air temperature, precipitation, and windspeed)
o Heat gains and losses from short-wave solar radiation (sun), long-wave atmospheric radiation
(air temperature), and precipitation
o Air temperature is the dominant factor explaining long-term stream temperature trends and
inter-annual variability, except during the summer when discharge accounts for approximately
half of the inter-annual variation in stream temperatures (e.g., during a dry year with
exceptionally low flow, water is warmer)
o Green River example:
Analyses indicate that air temperature appears to be the primary driver of water
temperature in the Green River (20,44)
Stream morphology (e.g., dimension, pattern, profile, and bed materials) and topographic characteristics
(e.g., aspect and confinement)
o Friction created by water flowing over the bed increases water temperature and direct
conduction from the stream bed can heat but usually cools water
o Green River examples:
AGENDA ITEM #6. e)
2
Increase in daily temperature ranges (fluctuations between min and max) from Flaming
Geyser State Park (RM 43.1) to just above Soos Creek (RM 33.4) is likely due to the
relatively shallow water depth throughout this reach (Figure 1) (44)
Smaller than typical increases in maximum temperatures in the Green River gorge (~RM
48-58) are likely due to topographic shading (44)
Narrowing of the daily temperature range and minimal increase in maximum
temperatures from Soos Creek (RM 33.4) to Mill Creek (RM 23.8) are likely associated
with alluvial deposits from historical connection to the White River (Figure 2) (44)
Green River Mainstem Longitudinal Profile
7-Day Average Min-Max Temperatures
USGS/WDFW River Mile
0102030405060Temperature (oC)0
5
10
15
20
25
30
Water depth (m)0.0
0.2
0.4
0.6
0.8
1.0
1.2
Min-Max Temperature (July 4, 2015)
Water depth (m)
Newaukum Creek
Soos Creek Mill CreekOutlet of
Howard Hanson
Dam
Figure 1: Plot of 7-DMax and 7-DMin water temperature on July 4,
2015 for the Green River mainstem compared to the water depths
estimated as part of the Green River Temperature TMDL (20, 44)
Figure 2: Map showing the location of the historical confluence of the
White River with the Green River (44)
Historical location of the White River
AGENDA ITEM #6. e)
3
Groundwater, hyporheic, tributaries, and tides
o Infiltration and recharge throughout the watershed contribute to groundwater
o Heat gains and losses from groundwater and tributary inputs can influence minimum and
maximum temperature as well as buffer temperature fluctuations
o Hyporheic exchange affects the minimum and maximum temperature, but has little effect on
the daily average water temperature; hyporheic exchange doesn’t lower the average temp,
however, it can lower the 7-DMax as well as the range in daily temperatures
o Tidal exchange can push colder estuarine salt-water up into lower portions of rivers
o Green River examples:
Narrower temperature ranges around the Green River Gorge (~RM 48-58) are likely due
to inputs of cold water via tributaries and springs (e.g., Palmer Springs, Icy Creek) and
groundwater (20,44)
Narrow temperature ranges and minimal increases in maximum temperatures below
Soos Creek (RM 33.4) to Mill Creek (RM 23.8) are likely due to increased hyporheic
exchange along this portion of the river (Figure 3) (20,44)
Green River Mainstem Longitudinal Profile
7-Day Average Min & Max Temperature
USGS/WDFW River Mile
0102030405060Temperature (oC)0
5
10
15
20
25
30
Hyporheic Exchange Flow (%)-10
0
10
20
30
40
50
Min-Max Temperature (July 4, 2015)
Hyporheic Exchange Flow
Newaukum Creek
Soos Creek Mill CreekOutlet of
Howard Hanson
Dam
Figure 3: Plot of 7-DMax and 7-DMin water temperature on July 4, 2015
for the Green River mainstem compared to the hyporheic exchange flow
estimated as part of the Green River Temperature TMDL (20, 44)
AGENDA ITEM #6. e)
4
In the Middle Green, primary diffuse flow (flows from ungauged tributaries and
groundwater) occurs from RM 55 to RM 32 (Figure 4) (20,44)
Large temperature ranges at downstream locations in the Duwamish River are likely due
to fluctuations from warmer upstream water temperatures and cooler estuarine
water(44)
Riparian corridor conditions
o Riparian tree canopy buffers heat exchange between the river and solar-atmospheric radiation
(heating caused by sun and warm air)
The effectiveness of shade provided by trees increases with the height of the trees, the
width of riparian corridor, and the density of the planted riparian areas
Contiguous shade from wide riparian corridors (as compared to segmented or narrow
corridors) is most effective at keeping water from warming from solar radiation
o Wide riparian corridors support microclimate conditions that insulate stream temperatures from
atmospheric radiation
Microclimate conditions from wide riparian corridors are most effective at insulating
water from warmer air temperatures
A continuous buffer of at least 150 feet wide with trees ~104 feet tall and 90 percent
canopy density is necessary to prevent temperature increases
o The absence of insulating and buffering influences will cause streams to rapidly trend away from
groundwater temperature and toward atmospheric temperatures; where insulating and
buffering influences are strong, downstream temperature trends are reduced or eliminated
o Green River examples:
Downstream increase in maximum water temperatures below Howard Hanson Dam is
primarily due to the lack of riparian shade (44)
Green River Mainstem Longitudinal Profile
7-Day Average Min-Max Temperatures
USGS/WDFW River Mile
0102030405060Temperature (oC)0
5
10
15
20
25
30
Diffuse Inflow (cfs)0
5
10
15
20
25
30
Min-Max Temperature (July 4, 2015)
Diffuse TMDL model inflow
Newaukum Creek
Soos Creek Mill CreekOutlet of
Howard Hanson
Dam
Figure 4: Plot of 7-DMax and 7-DMin water temperature on July 4, 2015 for the Green
River mainstem compared to the estimated diffuse water inputs (ungauged tributaries
and groundwater) estimated as part of the Green River Temperature TMDL (20, 44)
AGENDA ITEM #6. e)
5
Shade deficit (difference between mature riparian shade and current conditions) exists
throughout the Middle and Lower Green River riparian corridor, below Howard Hanson
dam to the Green River George, and from below the gorge around Flaming Geyser State
Park to Tukwila (Figure 5) (20,44)
Priority areas for riparian plantings along the banks of the Green River, based on steep
increases in maximum temperatures, include reaches downstream of Howard Hansen to
~RM 58 and from ~RM 48 to Newaukum Creek.
Geographic priorities for revegetation, in order of the most to least important, are:
the mainstem Middle Green River and Lower Green River; Soos and Newaukum Creeks
and their tributaries; the Duwamish River; tributaries to the Middle Green River,
Lower Green River and the Duwamish; the Upper Green River; and finally, the marine
nearshore, and nearshore drainages (98)
Cold-water refugia for salmonids (52, 72, 86, 91)
Cold-water refugia are characterized as being at least 2°C colder than the daily maximum temperature
of adjacent waters
Cold-water refuges provide areas that maintain temperature conditions beneficial for cold-water species
such as salmonids; these areas provide physiological and ecological benefits
Permanent shifts in stream temperature regimes can render formerly suitable habitat unusable for
native species
Fish may use cold-water refuges at various temporal and spatial scales
o Basin scale: cold water refugia driven by elevation, topography, geology, channel slope, and
interactions with surface and subsurface hydrology
o Segment and reach scale: cold water refugia driven by tributary confluences, bounded alluvial
valley segments (vertical hyporheic exchange), relic floodplain channels (lateral hyporheic
exchange)
Green River Mainstem Longitudinal Profile
7-Day Average Min & Max Temperature
USGS/WDFW River Mile
0102030405060Temperature (oC)0
5
10
15
20
25
30
Effective Shade Deficit (%)0
20
40
60
80
100
Min-Max Temperature (July 4, 2015)
Effective Shade Deficit
Newaukum Creek
Soos Creek Mill CreekOutlet of
Howard Hanson
Dam
Figure 5: Plot of 7-DMax and 7-DMin water temperature on July 4, 2015 for
the Green River mainstem compared to the estimated Effective Shade
deficit determined as part of the Green River Temperature TMDL (20, 44)
AGENDA ITEM #6. e)
6
o Channel habitat unit scale = cold water refugia driven by tributary confluences, side-channels,
vertical and lateral hyporheic exchange, diel and temporal variation
Cold water refugia can be eliminated by activities such as building levees and revetments along channels
that block hyporheic exchange; urban development that prevents water infiltration, lowers groundwater
tables, and removes trees
Potential cold water refugia in the Green River (below Howard Hansen Dam):
o Green River gorge (~RM 48-58) (topographic shading and groundwater inputs)
o Tributaries, confluences, and side-channels: Duwamish Tributary (RM 6.4), Palmer Springs (RM
56.3), Resort Springs (RM 51.3), Black Diamond Springs (RM 49.5), Icy Creek (RM 48.3), Crisp
Creek (RM 39.6), Lones Levee Channel (RM 37.5), Coho Channel (RM 36.9) (Figure 6) (44)
o Groundwater and hyporheic exchange zones: RM 55 - RM 32 in the Middle Green; areas around
alluvial deposits between Soos Creek (RM 33.4) to Mill Creek (RM 23.8) (Figure 3) (44)
o Reaches downstream of Howard Hansen where hypolimnetic withdrawals bring colder water
into the mainstem Green River
Potential cold water refugia in the Green River (above Howard Hansen Dam):
o North Fork Green (RM 65.5), Charley Creek (RM 65.9), Gale Creek (RM 67.9), Smay Creek (RM
76.3), and Sunday Creek (RM 85.9)
Green River Mainstem Longitudinal Profile
7-Day Average Maximum Temperature
July 4, 2015
USGS/WDFW River Mile
020406080Temperature (oC)0
5
10
15
20
25
30
Mainstem 7DMax
Water Quality Standard
Potential Lethality Threshold
Tributary 7DMax
Howard
Hanson
Dam
SundayCk SmayCk
GaleCk
CharleyCk
NFGreen
CohoChnl
Crisp Creek (40d)
LonesLeveeChnl
Newaukum Creek (44a)
Soos Creek (54a)
Mill Creek (41a)
Duwamish (13a)
Figure 6: Plot of 7-DMax water temperature on July 4, 2015 at Green River
mainstem and selected tributary and side channel locations (20, 44)
AGENDA ITEM #6. e)
7
Table 1: Temperature Impacts on Chinook Life Stages
Life Stage Impaired and Detrimental Temperature Range Potential Temperature-related Impacts Citations
Adult Upstream
Migration
Migration = average >15°C , maximums >18-20°C,
7-DMax >20°C
Complete blockage = 21-22°C
Disease susceptibility = average >17.5°C, 7-DMax >
15-19°C
Instant mortality = 32-33°C
Increased metabolic demand
Delayed migration
Increased disease exposure
Direct lethality
1, 11, 15, 24,
25, 26, 29, 41,
51, 55, 56, 57,
58, 79, 78, 80,
84
Adult Pre-
spawning
Disease susceptibility = average >13-14°C,
maximums >17-18°C
Gamete development = average >13-16°C
Increased susceptibility to disease (e.g., Ichthyophthirius
multifillis, Ceratomyxa shasta, columnaris disease)
Increased disease virulence
Decreased immune system condition
Reduced gamete quality and quantity
12, 14, 23, 24,
26, 55, 56, 57,
76, 78, 80
Adult Spawning Gamete viability = average >13-16°C
Spawning = average >12-13°C , 7-DMax > 12-14°C
Mortality = 7-DMax 21-25°C, maximum 24-25°C
Reduced fertilization success
Reduced embryo survival to emergence
14, 22, 24, 56,
57, 75, 74
Egg Incubation = average >8-10°C, maximum >13-15°C Reduced embryo success, hatching-emergence, condition, and
survival
Increased abnormalities and mortality
Altered metabolic rates, metabolic energy deficits
14, 23, 31, 32,
39, 56, 57, 65,
81, 95
Juvenile rearing
and outmigration
Growth = average >13-15°C, 7-DMax > 14-17°C,
maximum > 17-19°C
Rearing = average >16°C, 7-DMax > 15-18°C
Disease susceptibility = average >14-17.5°C
Feeding = average >18-20°C
Smoltification = average >15.5°C, 7-DMax > 15-16°C
Migration = average >18-22°C
Mortality = average >23°C
Reduced growth and feeding rates
Reduced competitive advantage with warm-water species
Reduced survival
Increased susceptibility to disease
Altered development and migration timing
Accelerated onset of smoltification and desmoltification
3, 7, 14, 23,
26, 46, 54, 55,
56, 57, 81, 87,
96, 99
AGENDA ITEM #6. e)
8
Department of Ecology Sub-lethal and Lethal Temperature Thresholds
Water temperature is a key aspect of water quality for salmonids, and excessively high water temperature can
act as a limiting factor for the distribution, migration, health and performance of salmonids (23, 24, 56, 57, 76)
Washington Department of Ecology established water temperature standards for salmon habitat at various
stages of their life history in Chapter 173-201A of the Washington Administrative Code (WAC)
Thresholds for sub-lethal impacts: 7-DMax (7 day average of the daily maximum temperatures)
o Salmon and Trout Spawning = 13°C 7-DMax (September 15th to July 1st)
o Core Summer Salmonid Habitat = 16°C 7-DMax (June 15th to September 15th)
o Salmonid Spawning, Rearing, Migration = 17.5°C 7-DMax (September 16th to June 14th)
Thresholds for acute lethal impacts and barriers to migration: 7-DMax and 1-DMax (1 day average of the daily
maximum temperatures)
o Salmon acute lethality = 22°C 7-DMax and 23°C 1-DMax
o Salmon barriers to migration = 22°C 1-DMax (3°C downstream differences)
Exceedances above the aforementioned thresholds indicate likely sub-lethal and lethal impacts to salmonid
If a water body is naturally warmer than or within 0.3°C of the standard/threshold for that water body, human
caused increases (considered cumulatively) must not increase that temperature by more than 0.3°C
Temperature Conditions in the Green River in 2015
(Following section based on King County 2016)
The spring and summer of 2015 was abnormally warm and dry, with low snow pack due to a very warm winter. King
County compiled water temperature data along the Green River from seven different entities in order to characterize
water temperatures. According to climate change scenarios, we expect future years to look more like the spring and
summer of 2015 than averages from the last 20 years.
Precipitation and air temperature:
o 2015 had average levels of fall and winter precipitation, but record warm temperatures led to winter
rain rather than snow at higher elevations (snow drought)
o 2015 air temperature frequently exceeded the 90th percentile (1949-2015) on several occasions from
January through July 2015 by as much as 5 oC; most notable were substantial excursions above the 90th
percentile in June and July
Instream flow:
o 2015 snowpack was low in the upper watershed; however, winter flows were not unusually low and
summer flow targets set in the Tacoma Water Habitat Conservation Plan for extremely dry weather
were met or exceeded
Water temperature:
o Water temperature in 2015 was similar to the 90th percentile (2001-2015) through late May; water
temperatures were much higher than typical from late May through the beginning of July
o 2015 peak daily maximum temperatures were observed in late June (compared to typical occurrence in
July and August)
o The relatively rapid rise in 7-DMax temperature between the outlet of Howard Hanson Dam and
Kanaskat (approximately 6 miles downstream) was likely due to a lack of riparian cover
o Relatively small increase in maximum temperature in the gorge is likely due to topographic shading and
input of cold water via tributary springs
AGENDA ITEM #6. e)
9
o Increase in the diurnal range from Flaming Geyser State Park to Soos Creek is likely due to the relatively
shallow water depth through this reach coupled with the lack of riparian shade
o Narrowing of the temperature range below Soos Creek to Mill Creek is likely due to increased hyporheic
exchange (potential for large alluvial deposits)
2015 Compared to 2006 and 2003
o 2006 precipitation, snowpack, and air temperature were relatively typical of historic conditions;
mainstem flows in 2006 were not unusually low
o Water temperatures observed in 2006 were closer to 2001-2015 average conditions
o The maximum 7-DMax temperatures observed downstream of the Green River gorge were consistently
higher in 2015 compared to 2006 and 2003
o System potential shade model predictions illustrate that even with extensive amounts of additional
shade along the entire river, water temperatures would still likely exceed criteria under critical flow and
weather conditions
2015 stands out as having the highest 7-DMax temperatures below the gorge – higher even than
the “worst case” existing condition shade model
Potential Temperature-related Impacts to Chinook in the Green
(Following section based on King County 2016)
7-DMax temperatures exceeded the relevant temperature standard throughout the mainstem – upstream and
downstream of Howard Hanson Dam (exception being at the outlet of the dam up until late summer where
discharge of cool hypolimnetic bottom waters from the pool behind Howard Hanson Dam cool mainstem
temperatures)
The 7-DMax observed in July 2015 exceeded the 22 °C potential lethal criterion at almost every mainstem
location sampled from Flaming Geyser State Park below the Green River gorge to the most downstream station
in the Duwamish River
Green River Water Temperature Exceedances (Table 2)
o Consistent exceedance of 7-DMax Salmon Core Summer Habitat criterion (mid-June to mid-September);
2015 had exceedance as early as late May
o Consistent exceedance of 7-DMax Salmon Spawning Habitat criterion (mid-June to mid-September);
2015 had exceedance as early as late May
o Occasional exceedance of 7-DMax Potentially Lethal criterion
AGENDA ITEM #6. e)
10
Table 2: Department of Ecology salmon and trout designated aquatic use designation, respective 7-DMax temperature criteria, and 2015
temperature trends. Use designation and temperature criteria based on Table 200 and 602 of WAC 173-201A-602.
Location Along Green River Use Designation 7-DMax (°C) 2015 Temperature Trends
Mouth to Black River (RM 0-11) Salmon/trout migration
and rearing
Migration
Rearing
17.5
17.5 7-DMax temperatures consistently exceeded the salmon/trout
rearing and migration criterion until about September 2, 2015
7-DMax temperatures consistently exceeded the salmon/trout
22oC lethal criterion for several days at the end of June and early
July and the most downstream stations exceeded lethal criterion
in July and again at the beginning of August
Black River to Mill Creek (RM
11-23.8)
Salmon/trout migration,
spawning, and rearing
Migration
Rearing
Spawning
Incubation
17.5
17.5
13
13
Mill Creek to Flaming Geyser
State Park (RM 23.8-42.3)
Salmon/trout core
summer habitat
Migration
Rearing
Spawning
Incubation
16
16
13
13
7-DMax temperatures consistently exceeded the salmon/trout
core summer habitat criterion
7-DMax temperatures exceeded the salmon/trout spawning and
incubation criterion through July 1st and again at the end of the
summer
7-DMax temperatures from RM 34.8-41.2 (below gorge)
exceeded the salmon/trout 22oC lethal criterion for several days
at the end of June and beginning of July; no observed
exceedances from RM 23.8-33.4
Flaming Geyser State Park to
headwaters (RM 42.3-85.9)
Salmon/trout core
summer habitat
Migration
Rearing
Spawning
Incubation
16
16
13
13
7-DMax temperatures consistently exceeded the salmon/trout
core summer habitat criterion
7-DMax temperatures exceeded the salmon/trout spawning and
incubation criterion at the beginning and end of the summer
7-DMax temperatures exceed the salmon/trout 22oC lethal
criterion for a few days at RM 70.2
Green River and Sunday Creek:
all waters above confluence
Char
Rearing
Spawning
Incubation
12
9
9
7-DMax temperatures consistently exceeded the char spawning
and rearing habitat criterion
Smay Creek and West Fork
Smay Creek: all waters AGENDA ITEM #6. e)
11
Green River Chinook life stages likely impacted by high water temperatures (Figure 7 & Table 3)
o Parr rearing (core summer criterion)
o Yearling rearing (core summer criterion)
o Adult upstream migration (migration/spawning/incubation criterion)
o Early spawning and incubation (spawning/incubation criterion)
Figure 7 (adapted from King County 2016): Plot of 7-DMax water temperatures for the 2015 and 2016 calendar years measured by King County at the Whitney Bridge
station (GRT10) compared to 7-DMax temperatures measured from 2001-2014. State standards for designated uses are noted by the orange line and potentially
lethal impacts are indicated by the red line. State standards for designated uses include core summer salmonid habitats (July 1 – September 15) as well as spawning
and incubation periods (September 16 – July 1). Timing of specific Green River Fall Chinook life-stages included below.
AGENDA ITEM #6. e)
12
Table 3: Locations across the Green River of potential temperature-related impacts on Fall Chinook life stages.
Life Stage Potential Temperature-related Impacts Location in Green River
Adult Upstream Migration Increased metabolic demand
Delayed migration
Increased disease exposure
Direct lethality
Migration Inhibited: RM 0 – RM 46
Blockages: RM 0 – RM 44
Disease: RM 0 – RM 48
Lethality: RM 0 – 23.8, 34.8-41.2, 70.2
Adult Pre-spawning Increased susceptibility to disease (e.g.,
Ichthyophthirius multifillis, Ceratomyxa shasta,
columnaris disease)
Increased disease virulence
Decreased immune system condition
Reduced gamete quality and quantity
Migration Inhibited: RM 0 – RM 46
Blockages: RM 0 – RM 44
Disease: RM 0 – RM 48
Lethality: RM 0 – 23.8, 34.8-41.2, 70.2
Adult Spawning Reduced fertilization success
Reduced embryo survival to emergence
Mainstem spawning: Middle Green RM 25.4 –
RM 60.8
Tributaries: Soos Creek, Newaukum Creek
Egg Reduced embryo success, hatching-emergence,
condition, and survival
Increased abnormalities and mortality
Altered metabolic rates, metabolic energy deficits
Mainstem spawning: Middle Green RM 25.4 –
RM 60.8
Tributaries: Soos Creek, Newaukum Creek
Juvenile rearing and
outmigration
Reduced growth and feeding rates
Reduced competitive advantage with warm-water
species
Reduced survival
Increased susceptibility to disease
Altered development and migration timing
Accelerated onset of smoltification and
desmoltification
AGENDA ITEM #6. e)
13
Potential Climate Change Impacts and Trends to Water Temperature Conditions
Climate Change impacts: higher air and water temperatures, lower summer flows, altered precipitation and
hydrologic regimes, and increased magnitude/frequency of winter peak flows (4, 22, 37, 52, 53)
Summer periods of high temperatures and low flows
o Summer flows have been trending lower for many decades resulting in decreased available habitats (48,
50, 77, 88)
o Most models predict summer warming will exceed warming in other seasons (52, 53, 64)
o At a summertime warming range of 2-5.5°C, there is potential for loss of 5 to 22% of salmon habitat by
2090 (69)
o Significant increases in water temperatures and thermal stress for salmon statewide will occur with
climate warming (52, 53)
o Nearly 40-50% reduction in salmon cold-water habitat could occur with climate warming (19); Disrupting
migration as fish hold in cold-water refuges (27, 41, 90)
o Competitive interactions will be increasingly skewed towards species with warmer temperature
tolerances (17,59)
o Yearling likely sensitive due to increased exposure to the highest water temperature conditions in
summer (4)
Changes in precipitation and hydrologic regimes
o Changes in precipitation and temperature associated with regional warming in the PNW will alter
snowpack and hydrologic regimes (22, 30, 49, 82)
o Green River Watershed: significant reduction in snow water equivalence predicted to start in the
2020’s; increased winter precipitation and decreased summer precipitation; higher runoff in cool season
and lower runoff in warm season; altered timing of flows (22)
o Shifting of watershed hydrographs from transient rain-snow and snow-dominant to rain-dominant (22)
o Increased flood magnitude and frequency during incubation can decrease survival rates by scouring
redds, crushing eggs, mobilizing gravels, and depositing fine sediments on redds (18, 7, 36, 61, 79)
o Warmer cold season temperatures and warmer annual minima may shift biological processes (e.g.
altered growth rates and food availability) ; warming trends will reduce the time between spawning and
juvenile hatching (37); snowmelt driven freshets have advanced 2-3 weeks in last 50 years (73, 88)
o Possible desynchronization of juvenile hatching and emergence from optimal periods for flows and food
availability (6)
o Reduced availability of slow-water habitats, which can flush rearing juveniles downstream from
preferred habitats and decrease freshwater survival rates (47)
o Accelerated temperature regime during springtime can result in either earlier emigration (caused by
more rapid development to the smolt stage) or less success in smoltification (caused by high
temperature, desmoltification, or inhibitory effects) (56)
Human alteration to river thermal regimes:
o Dams: reduced thermal and flow variability, potential for hyporheic exchange to act as a temperature
buffer is reduced by flow regulation, altered sediment dynamics, alter thermal dynamics from storage
reservoirs (68, 70, 72, 93)
Howard Hanson Dam has a large, deep reservoir with hypolimnetic withdrawals releasing colder
water during the summer and warmer water during late summer, fall, and winter
AGENDA ITEM #6. e)
14
o Water withdrawals: reduced in-stream flows result in reduced assimilative capacity of streams, draw
hyporheic water away from the stream (33, 60, 66, 72)
o Channel engineering and connectivity (e.g., straightening, bank hardening, diking, and disconnection of
surface-groundwater, side-channel, and floodplain exchange): decreases the interaction of stream
channels with floodplain and alluvial aquifer, hyporheic areas, and reduces habitat variability (drive
streambed hyporheic flow) (40, 72, 97)
Primarily Lower Green (King County maintains over 30 miles of levees and revetments on the
Green/Duwamish); lower sections of the Middle Green.
o Removal of vegetation (upland or riparian): reduced insulating properties (reduces convective heat
exchange), limited blocking of solar radiation and trapping of cool air temperature, altered infiltration
and hydrologic dynamics (35, 56, 6, 98)
High priority areas with degraded riparian conditions include the Middle Green (RM 32 – 64),
Lower Green (RM 11 – 32), Soos and Newaukum, Duwamish River (RM 0 – 11), small tributaries
to Middle and Lower Green (e.g., Burns, Crisp, Mill, Mullen, Springbrook, Brooks creeks), etc.
o Land use (e.g., impervious related development): altered hydrologic regime, decreased infiltration and
recharge, altered exchange between reach and alluvial aquifer, reduced storage/higher winter flows and
reduced summer recharge (10, 12, 67, 83)
o Climate Change: increased air and water temperature, reduced snow storage (influencing summer low
flows), altered precipitation and flow regime (frequency and timing of events), reduced rearing and
suitable habitats availability, altered temperature-specific ecological timing across salmon life stages (4,
19, 22, 37, 48, 52, 53, 63)
AGENDA ITEM #6. e)
15
Strategies for Cooler Water Temperatures
Protect riparian forested areas as buffers to air and solar radiation warming water.
Plant wide, contiguous riparian buffers of tall trees where possible. Priority areas include the six miles
immediately downstream of Howard Hanson Dam, etc. (from above), and priorities listed in the WRIA 9 Riparian
Revegetation Strategy.
Purchase conservation easements or fee simple acquisition of riparian areas in order to protect and maintain
native trees along channels.
Protect existing cold water refugia from urban development, tree removal, and bank armoring.
Protect and restore areas known to contribute to groundwater recharge.
Restore areas of hyporheic exchange to cool water by setting back levees and taking other actions to reconnect
channels to the historic floodplain.
Work with the ACOE to consider options for pulling cooler water from the reservoir behind Howard Hanson
Dam, especially in late summer.
Reduce water withdrawals from the watershed, and encourage use of reclaimed water instead.
Encourage low impact development practices that reduce impervious surfaces, and lot sizes, maintain forested
areas and wildlife corridors, and promote stormwater infiltration and treatment.
Retrofit developed areas to infiltrate and treat stormwater and plant trees to promote groundwater recharge,
bolster summer stream flows, and cool stormwater runoff.
AGENDA ITEM #6. e)
16
References
1. Alabaster, J, S,. 1988. The dissolved oxygen requirements of upstream migrant Chinook salmon, Oncorhynchus
tshawytscha, in the lower Willamette River, Oregon. J. Fish Biol 32:635-636.
2. Arismendi, I., S. L., Johnson, J. B. Dunham, and R. Haggerty. 2013. Descriptors of natural thermal regimes in
streams and their responsiveness to change in the Pacific Northwest of North America. Freshwater Biol, 58: 880-
894. DOI: 10.1111/Fwb.12094.
3. Baker, P.F., T.P. Speed, and F. K. Ligon. 1995. Estimating the influence of temperature on the survival of Chinook
salmon smolts (Oncorhyncus tshawytscha) migrating through the Sacramento-San Joaquin River Delta of
California. Can. J. Fish Aquat. Sci. 52:855-863.
4. Battin, J., M. W. Wiley, M. H. Ruckelshaus, R. N. Palmer, K. K. Bartz, H. Imaki, and E. Korb. 2007. Projected
impacts of climate change on salmon habitat restoration. Proc of the Natl Acad of Sci of the U.S.A 104:6720-
6725.
5. Beschta, R. L. 1997. Riparian shade and stream temperature: an alternative perspective. Rangelands: 25-28.
6. Brannon, E. L., M. S. Powell, T. P. Quinn, and A. Talbot. 2004 Population structure of Columbia River basin
Chinook salmon and steelhead trout. Rev Fish Sci 12:99–232.
7. Brett, J.R. 1958. Implications and assessments of environmental stress. pp 69-83 in P.A. Larkin (ed.) The
investigation of fish-power problems, Vancouver, Institute of Fisheries, University of British Columbia.
8. Brosofske, K. D., J. Chen, R. J. Naiman , J. Franklin. 1997. Harvesting effects on microclimatic gradients from small
streams to uplands in western Washington. Ecol Appl, 7: 1188-1200.
9. Brown, G. W. 1969. Predicting temperatures of small streams. Water Resour Res 5:68–75
10. Brown, M.T. and M.B. Vivas, 2005. Landscape Development Intensity Index. Environmental Monitoring and
Assessment 101:289- 309.
11. Bumgarner, J., G. Mendel, D. Milks, L. Ross, M. Varney, J. Dedloff. 1997. Tucannon River spring Chinook hatchery
evaluation. 1996 Annual report. Washington Department of Fish and Wildlife, Hatcheries Program Assessment
and Development Division. Report #H97-07. Produced for U.S. Fish and Wildlife Service. Cooperative Agreement
14-48-0001-96539.
12. Caissie, D., 2006. The Thermal Regime of Rivers: A Review. Freshwater Biology 51:1389-1406.
13. California Department of Water Resources. 1988. Water Temperature Effects on Chinook Salmon
(Onchorhynchus tshawytscha) with emphasis on the Sacramento River: A Literature Review. Northern District
Office Report. Red Bluff, California. 42 p.
14. Clarke, W.C., and T. Hirano. 1995. Osmoregulation. In: Groot, C., Margolis, L., Clarke, W.C. Eds.., Physiological
Ecology of Pacific Salmon. UBC Press, Vancouver, pp. 317–377.
15. Cooke, S. J., S. G. Hinch, A. P. Farrell, M. F. Lapointe, S. M. R. Jones, J. S. Macdonald, D. A. Patterson, M. C.
Healey, and G. Van Der Kraak. 2004. Abnormal migration timing and high en route mortality of sockeye salmon
in the Fraser River, British Columbia. Fisheries 29:22–33.
16. Constantz, J. 1998. Interaction between stream temperature, streamflow, and groundwater exchanges in alpine
streams. Wat. Res. Research, 34: 1609-1615.
17. DeStaso, J., and F. J. Rahel. 1994. Influence of water temperature on interactions between juvenile Colorado
River cutthroat trout and brook trout in a laboratory stream. Trans Am Fish Soc 123: 289–297.
18. DeVries, P. E. 1997. Riverine salmonid egg burial depths: review of published data and implications for scour
studies. Can J Fish Aquat Sci 54:1685–1698.
19. Eaton, J. G., and R. M. Scheller. 1996. Effects of climate warming on fish thermal habitat in streams of the United
States. Limnol Oceanogr 4l:109-1115.
AGENDA ITEM #6. e)
17
20. Ecology. 2011. Green River Temperature Total Maximum Daily Load. Water Quality Improvement Report.
Washington Department of Ecology, Olympia, WA. Publication No. 11-10-046.
https://fortress.wa.gov/ecy/publications/SummaryPages/1110046.html
21. Ebersole, J. L., P. J. Jr.Wigington, S. G. Leibowitz, R.L. Comeleo, and J. Van Sickle. 2015. Predicting the occurrence
of cold-water patches at intermittent and ephemeral tributary confluences with warm rivers. Freshwater
Science, 34: 111-124. DOI: 10.1086/678127.
22. Elsner, M. M., L. Cuo, N. Voisin, J. Deems, A. F. Hamlet, J. Vano, K. E. B. Mickelson, S. Y. Lee, and D. P.
Lettenmaier. 2010. Implications of 21st century climate change for the hydrology of Washington State. Clim.
Change 102, 225e260.
23. Environmental Protection Agency (EPA). 2007. Biological evaluation of the revised Washington water quality
standards. U.S. EPA, Seattle, WA.
24. Farrell, A. P., S. G. Hinch, S. J. Cooke, D. A. Patterson, G. T. Crossin, M. Lapointe, and M. T. Mathes. 2008. Pacific
salmon in hot water: applying aerobic scope models and biotelemetry to predict the success of spawning
migrations. Physiol and Biochem Zool 81(6):697-708.
25. Fish, F. F., and M. G. Hanavan. 1948. A report upon the Grand Coulee fish-maintenance project 1939-1947. U.S.
Fish and Wildlife Service, Special Science Report 55. 63 pp.
26. Fryer, J.L., and K.S. Pilcher. 1974. Effects of Temperature on Disease of Salmonid Fishes. U.S. Environmental
Protection Agency, Office of Research and Development. Ecological Research Series. EPA-660/3-73-020. 114pp.
27. Goneia, T. M., M. L. Keefer, T. C. Bjornn, C. A. Peery, D. H. Bennett, and L. C. Stuehrenberg. 2006. Behavioral
thermoregulation and slowed migration by adult fall Chinook salmon in response to high Columbia River water
temperatures. Trans Am Fish Soc 135:408–419.
28. Greene, C. M., D. W. Jensen, E. Beamer, G. R. Pess, E. A. Steel. 2005. Effects of environmental conditions during
stream, estuary, and ocean residency on Chinook salmon return rates in the Skagit River, WA. Trans of the Am
Fish Soc 134:1562–1581
29. Hallock, R. J., R. F. Elwell, and D. H. Fry. 1970. Migrations of adult kind salmon Oncorhynchus tshawytscha in the
San Joaquin Delta as demonstrated by the use of sonic tags. California Dept Fish Game Fish Bull 151. 92 pp.
30. Hamlet, A. F., and D. P. Lettenmaier. 2005. Production of temporally consistent grid.
31. Healy, T. 1979. The effect of high temperature on the survival of Sacramento River chinook (king) salmon,
Oncorhynchus tshawytscha, eggs, and fry. California Department of Fish and Game, Anadromous Fisheries
Branch, Administrative Report No. 79-10. 7 p.
32. Heming, T.A. 1982. Effects Of Temperature On Utilization Of Yolk By Chinook Salmon (Oncorhynchus
Tshawytscha) Eggs And Alevins. Can. J. Fish. Aquat. Sci 39:1:184-190.
33. Hibbs, B., and J. Sharp. 1992. Impact of high capacity wells on flows of the lower Colorado River. New Waves
5:3– 4.
34. Holmes, R. M. 2000. The importance of ground water to stream ecosystem function. Pages 137–148 in J. B.
Jones and P. J. Mulholland (eds.). Streams and ground waters. Academic Press, San Diego.
35. Holtby, L. B. 1988. Effects of logging on stream temperatures in Carnation Creek, British Columbia, and
associated impacts on the coho salmon (Oncorhynchus kisutch). Canadian Journal of Fisheries and Aquatic
Sciences 45:502–515.
36. Holtby, L. B., M. C. Healey. 1986. Selection for adult size in female coho salmon (Oncorhynchus kisutch). Can J
Fish Aquat Sci 43:1946–1959
37. Isaak, D. J., S. Wollrab, D. Horan, and G. Chandler. 2011. Climate change effects on stream and river
temperatures across the northwest U.S. from 1980–2009 and implications for salmonid fishes, Clim. Change,
doi:10.1007/s10584-011-0326-z.
AGENDA ITEM #6. e)
18
38. Johnson, S. L. 2003. Stream temperature: scaling of observations and issue for modeling. Hydrol Proc 17:497–
499.
39. Johnson, H.E., and R.F. Brice. 1953. Effects of transportation of green eggs, and of water temperature during
incubation, on the mortality of Chinook salmon. Prog. Fish-Culturist 15:104- 108.
40. Jurajda, P. 1995. Effect of channelization and regulation on fish recruitment in a flood plain river. Regulated
Rivers: Research and Management 10:207–215.
41. Keefer, M. L., C. A. Peery, B. High. 2009. Behavioral thermoregulation and associated mortality trade-offs in
migrating adult steelhead (Oncorhynchus mykiss): variability among sympatric populations. Can J Fish Aquat Sci
66:1734–1747.
42. Keery, J, A. Binley, N.Crook, and J. W. N. Smith. 2007. Temporal and spatial variability of groundwater–surface
water fluxes: Development and application of an analytical method using temperature time series. J Hydrol, 336:
1-16. DOI: 10.1016/j.jhydrol.2006.12.003.
43. Kiffney, P. M., C. M. Greene, J. E. Hall, J. R. Davies. 2006. Tributary streams create spatial discontinuities in
habitat, biological productivity, and diversity in mainstem rivers. Can J Fish Aquat Sci, 63: 2518-2530. DOI:
10.1139/f06-138.
44. King County. 2016. Green-Duwamish River 2015 Temperature Data Compilation and Analysis. Prepared by
Curtis DeGasperi, Water and Land Resources Division. Seattle, Washington.
45. Knowles, N, M. D. Dettinger, D. R. Cayan. 2006. Trends in snowfall versus rainfall in the Western United States. J
Clim 19:4545–4559.
46. Kurokawa, T. 1990. Influence of the date and body size at smoltification and subsequent growth rate and
photoperiod on desmoltification in underyearling masu salmon (Oncorhynchus masou). Aquaculture 86: 209-
218.
47. Latterell, J. J., K. D. Fausch, C. Gowan, S. C. Riley. 1998. Relationship of trout recruitment to snowmelt runoff
flows and adult trout abundance in six Colorado mountain streams. Rivers 6:240–250.
48. Leppi, J. C. , T. H. DeLuca, S. W. Harrar, S. W. Running. 2011. Impacts of climate change on August stream
discharge in the Central-Rocky Mountains Climatic Change. doi:10.1007/s10584-011-0235-1.
49. Lettenmaier, D. P., A. W. Wood,R. N. Palmer, E. F. Wood, E. Z. Stakhiv. 1999. Water resources implications of
global warming: a U.S. regional perspective. Clim Change 43(3):537–579.
50. Luce, C. H., Z. A. Holden. 2009. Declining annual streamflow distributions in the Pacific Northwest United States.
Geophys Res Lett 36:L16401. doi:10.1029/2009GL039407.
51. Major, R. L., J. L. Mighell. 1967. Influence of Rocky Reach Dam and the temperature of the Okanogan River on
the upstream migration of sockeye salmon. Fish Bull 66(1):131-147.
52. Mantua, N.J, I. Tohver, A. F. Hamlet. 2010. Climate change impacts on streamflow extremes and summertime
stream temperature and their possible consequences for freshwater salmon habitat in Washington State. Clim
Change, 102: 187-223. DOI: 10.1007/s10584-010-9845-2.
53. Mantua, N.J., I. Tohver, A. F. Hamlet. 2009. Chapter 6 in The Washington Climate Change Impacts Assessment:
Evaluating Washington's Future in a Changing Climate, Climate Impacts Group, University of Washington,
Seattle, Washington.
54. Marine, K. R., and J. J. Cech, Jr. 1998. Effects of Elevated Water Temperature on Some Aspects of the
Physiological and Ecological Performance of Juvenile Chinook Salmon (Onchorhynchus tshawytscha):
Implications for Management of California’s Chinook Salmon Stocks. Stream Temperature Monitoring and
Assessment Workshop, 12-14 January 1998. Sacramento, CA. Forest Science Project, Humboldt State University,
Arcata, CA.
55. Materna, E. 2001. Issue Paper 4: Temperature Interaction. Prepared as part of U.S. EPA Region 10 Temperature
Water Quality Criteria Guidance Development Project. EPA-910-D-01-004.
AGENDA ITEM #6. e)
19
56. McCullough, D., S. Spalding, D. Sturdevant, and M. Hicks. 2001. Issue paper 5 summary of technical literature
examining the physiological effects of temperature on salmonids : prepared as part of EPA Region 10
Temperature Water Quality Criteria Guidance Development Project. Seattle, WA, U.S. Environmental Protection
Agency, Region 10.
57. McCullough, D. A. 1999. A review and synthesis of effects of alterations to the water temperature regime on
freshwater life stages of salmonids, with special reference to Chinook salmon. Water Resour Assess, U.S. EPA
910-R-99-010, 291 pp., Seattle, WA.
58. Mcdonald, J. S., M. G. G. Foreman, T. Farrell, I. V. Williams, J. Grout, A. Cass, J. C. Woodey, H. Enzenhofer, W. C.
Clarke, R. Houtman, E. M. Donaldson, and D. Barnes. 2000. The influence of extreme water temperatures on
migrating Fraser River sockeye salmon (Oncorhynchus nerka) during the 1998 spawning season. Can. Tech. Rep.
Fish. Aquat. Sci. 2326 117 p.
59. McMahon, T. E., A. V. Zale, F. T. Barrows, J. H. Selong, R. J. Danehy. 2007. Temperature and competition
between bull trout and brook trout: a test of the elevation refuge hypothesis. Trans Am Fish Soc 136:1313–1326.
60. Meier, W., C. Bonjour, A. Wüest, and P. Reichert. 2003. Modeling the effect of water diversion on the
temperature of mountain streams. J Environ Eng 129:755–764.
61. Montgomery, D. R., J. M. Buffington, N. P. Peterson, D. Schuett Hames, T. P. Quinn. 1996. Streambed scour, egg
burial depths, and the influence of salmonid spawning on bed surface mobility and embryo survival. Can J Fish
Aquat Sci 53:1061–1070.
62. Moore, R. D., D. L. Spittlehouse, and A. Story. 2005. Riparian microclimate and stream temperature response to
forest harvesting: a review. J Am Water Resour Ass 41:813–834.
63. Mote, P. W., A. F. Hamlet, M. P Clark, and D. P. Lettenmaier. 2005. Declining mountain snowpack in western
North America. Bull Am Meteorol Soc 86:39–49.
64. Mote, P. W., and E. P. Salathé Jr. 2010. Future climate in the Pacific Northwest. Washington Climate Change
Impacts Assessment: Evaluating Washington’s future in a changing climate. Climate Change.
doi:10.1007/s10584-010-9848-z.
65. Murray, C.B. and T.D. Beacham. 1987. The development of chinook and chum salmon embryos and alevins
under varying temperature regimes. Can. J. of Zoology 65:11:2672-2681.
66. National Research Council. 1996. Upstream: Salmon and society in the Pacific Northwest. National Academy
Press, Washington, DC, 452 pp.
67. Nelson, K. C., M. A. Palmer. 2007. Stream temperature surges under urbanization and climate change: data,
models, and responses. J Amer Water Resources Ass 43:440–452.
68. Olden, J. D., R. J. Naiman. 2009. Incorporating thermal regimes into environmental assessments: modifying dam
operations to restore freshwater ecosystem integrity. Freshw Biol. doi:10.1111/j.1365-2427.2009.02179.x
69. O’Neal, K. 2002. Effects of global warming on trout and salmon in U.S. streams. Defenders of Wildlife,
Washington, D.C. 46 pp.
70. Poff, N. L., B. D. Richter, A. H. Arthington, S. E. Bunn, R. J. Naiman, E. Kendy, M. Acreman, A. Apse, B. Bledsoe, M.
C. Freeman, J. Henriksen, R. B. Jacobson, J. G. Kennen, D. M. Merritt, J. H. O'Keeffe, J. Olden, K. Rogers, R. E.
Tharme, and A. Warner. 2010. The ecological limits of hydrologic alteration (ELOHA): a new framework for
developing regional environmental flow standards. Freshw Biol 55:147–170.
71. Poole, G. C. 2002. Fluvial landscape ecology: addressing uniqueness within the river discontinuum. Freshwater
Biol, 47: 641-660. DOI: 10.1046/j.1365-2427.2002.00922.x.
72. Poole, G. C., C. H. Berman. 2001. An ecological perspective on in-stream temperature: natural heat dynamics
and mechanisms of human-caused thermal degradation. Environ Manage, 27: 787-802. DOI:
10.1007/s002670010188.
AGENDA ITEM #6. e)
20
73. Regonda, S. K., B. Rajagopalan, M. Clark, J. Pitlick. 2005. Seasonal cycle shifts in hydroclimatology over the
Western United States. J Clim 18:372–384.
74. Rice, G. 1960. Use of coldwater holding facilities in conjunction with king salmon spawning operations at nimbus
hatchery. Inland Fisheries Administrative Report No. 60-3. Region 2, Inland Fisheries, California Department of
Fish and Game. Sacramento, California.
75. Rice, S. P., M. T. Greenwood, C. B. Joyce. 2001. Tributaries, sediment sources, and the longitudinal organization
of macroinvertebrate fauna along river systems. Can J Fish Aquat Sci, 58: 824-840. DOI: 10.1139/cjfas-58-4-824.
76. Richter, A., S. A. Kolmes. 2005. Maximum Temperature Limits for Chinook, Coho, and Chum Salmon, and
Steelhead Trout in the Pacific Northwest. Rev in Fish Sci, 13:1,23-49. DOI: 10.1080/10641260590885861.
77. Rood, S. B., J. Pan, K. M. Gill, C. G. Franks, G. M. Samuelson, A. Shepherd. 2008. Declining summer flows of Rocky
Mountain rivers: changing seasonal hydrology and probably impacts on floodplain forests. J Hydrol 349:397–
410.
78. Schreck, C. B., J. C. Snelling, R. E. Ewing, C. S. Bradford, L. E. Davis, C. H. Slater. 1994. Migratory behavior of adult
spring Chinook salmon in the Willamette River and its tributaries. Oregon Cooperative Fishery Research Unit,
Oregon State University, Corvallis, Oregon. Project Number 88-160-3, Prepared for Bonneville Power
Administration, Portland, OR.
79. Seiler, D., S. Neuhauser, L. Kishimoto. 2003. 2002 Skagit River wild 01 chinook production evaluation annual
report. Washington Department of Fish and Wildlife, Olympia
80. Servizi, J. A. and D. W. Martens. 1991. Effect of Temperature, Season, and Fish Size on Acute Lethality of
Suspended Sediments to Coho Salmon (Oncorhynchus kisutch). Can. J. Fish. Aquat. Sci. 48:493-497.
81. Seymour, A.H. 1956. Effects of temperature upon young Chinook salmon. Ph.D. Thesis. University of
Washington, Seattle, Washington. 127 pp.
82. Snover, A. K., A. F. Hamlet, and D. P. Lettenmaier. 2003. Climate change scenarios for water planning studies:
pilot applications in the Pacific Northwest. Bull Am Meteorol Soc 84(11):1513–1518
83. Somers, K.A., E.S. Bernhardt, J.B. Grace, B.A. Hassett, E.B. Sudduth, S. Wang, and D.L. Urban. 2013. Streams in
the Urban Heat Island: Spatial and Temporal Variability in Temperature. Freshwater Science 32:309-326.
84. Stabler, D. F. 1981. Effects of altered flow regimes, temperatures, and river impoundment on adult steelhead
trout and Chinook salmon. MS thesis, University of Idaho, Moscow, ID. 84 pp.
85. Steel, E. A., C. Sowder, and E. E. Peterson. 2016. Spatial and temporal variation of water temperature regimes on
the Snoqualmie River network. Journal of the American Water Resources Association 1-19. DOI: 10.1111/1752-
1688.12423.
86. Steiger, J., M. James, and F. Gazelle. 1998. Channelization and consequences on floodplain system functioning
on the Garonne River, SW France. Regulated Rivers: Research & Management 14:13–23.
87. Stefansson, S.O., B. Th. Björnsson, L. O. E. Ebbesson, and S. D. McCormick. 2008. Smoltification. In: Finn, R.N.,
Kapoor, B.G. (Eds.), Fish Larval Physiology. Science Publishers, Enfield, pp. 639–681.
88. Stewart, I. T., D. R. Cayan, M. D. Dettinger. 2005. Changes toward earlier streamflow timing across western
North America. J Clim 18:1136–1155.
89. Sullivan, K., and T. N. Adams. 1991. The physics of stream heating: 2) An analysis of temperature patterns in
stream environments based on physical principles and field data. Weyerhaeuser Company Technical Report 044-
5002/89/2.
90. Sutton, R. J., M. L. Deas, S. K. Tanaka, T. Soto, R. A. Corum. 2007. Salmonid observations at a Klamath River
thermal refuge under various hydrological and meteorological conditions. River Res Appl 23:775–785.
91. Torgersen, C. E., J. L. Ebersole, and D. M. Keenan. 2012. Primer for identifying cold-water refuges to protect
and restore thermal diversity in riverine landscapes, US Environmental Protection Agency Report 910-C-12-001,
Seattle, Washington, 78 pp.
AGENDA ITEM #6. e)
21
92.Velsen, F. P. J. 1987. Temperature and incubation in Pacific salmon and rainbow trout: compilation of data on
median hatching time, mortality, and embryonic staging. Can. Data Rep. Fish. Aquat. Sci. 626:58p.
93.Ward, J. V., and J. A. Stanford. 1995. Ecological connectivity in alluvial river ecosystems and its disruption by flow
regulation. Regulated Rivers: Research and Management 11:105–119.
94.Webb, B.W., D.M. Hannah, R.D. Moore, L.E. Brown, and F. Nobilis, 2008. Recent Advances in Stream and River
Temperature Research. Hydrological Processes 22:902-918.
95.Webb, B. W, and Y. Zhang. 1997. Spatial and seasonal variability in the components of the river heat budget.
Hydrol Proc 11:79–101.
96.Wedemeyer, G.A., R.L. Saunders, and W.C. Clarke. 1980. Environmental Factors Affecting Smoltification and
Early Marine Survival of Anadromous Salmonids. Mar. Fish. Rev. 42:6:1-14.
97.Wissmar, R. C., J. E. Smith, B. E, McIntosh, H. W. Li, G. H. Reeves, and J. R. Sedel. 1994. Ecological health of river
basins in forested regions of eastern Washington and Oregon. USDA Forest Service Pacific Northwest Research
Station General Technical Report PNW-GTR-326.
98.WRIA 9 Revegetation Work Group. 2016. Re-Green the Green: Riparian Revegetation Strategy for the
Green/Duwamish and Central Puget Sound Watershed (WRIA 9). Written for the WRIA 9 Watershed Ecosystem
Forum.
99.Zaugg, W.S., and H.H. Wagner. 1973. Gill ATPase Activity Related to Parr-Smolt Transformation and Migration n
Steelhead Trout (Salmo gairdneri): Influence of Photoperiod and Temperature. Comp. Biochem. Physiol.
45B:955-965.
AGENDA ITEM #6. e)
Green-Duwamish and Central Puget Sound Watershed Salmon Habitat Plan • November 2020 PAGE
D-1
ROGER TABOR
Appendix D:
WRIA 9 Climate Change Impacts on Salmon
AGENDA ITEM #6. e)
1
WRIA 9 Climate Change Impacts on Salmon
Technical briefing for the update to the WRIA 9 Salmon Habitat Plan. Authored by Jessica
Engel, Kollin Higgins and Elissa Ostergaard with input by the WRIA 9 Implementation Technical
Committee. July 2017
Introduction
In the twelve years since the adoption of the 2005 Green/Duwamish and Central Puget Sound Watershed Salmon
Habitat Plan (Plan), there have been many successes and challenges for the salmon recovery effort in our local
watershed, and the greater Puget Sound. With each recovery project planned and implemented, we understand
more about the complexity of this undertaking. One of the most pressing environmental concerns affecting the
long-term success of salmon recovery in the Green/Duwamish Watershed is the impacts of climate change.
Climate change science was not incorporated into the 2005 Plan, because future climate scenarios were unclear.
However, climate change has been the focus of intense research, both global and regional, over the last decades.
The research from the Puget Sound region, especially from the University of Washington’s Climate Impact Group
(CIG), has been informative. The clear message from this research is that we must prepare for the current and
future impacts of climate change and incorporate what we know about climate change into salmon recovery
actions.
Climate change will directly impact salmon recovery work done in the Green/Duwamish and Central Puget Sound
watershed. CIG and others predict that Pacific Northwest precipitation patterns will change, bringing warmer,
wetter falls, winters, and springs. Floods will be more intense and more frequent. As winters become warmer and
wetter, snow will melt from the mountains earlier and more quickly. The decrease in amount and earlier
disappearance of the snow pack will exacerbate drought-like summer low flow conditions in currently snow-
dominated areas of the watershed. Hotter air temperatures will increase water temperature in both rivers and
the ocean. Nearshore and estuary areas will be impacted by sea level rise, food web alteration and ocean
acidification. A changing climate will exacerbate typical climate variability causing environmental conditions that
will negatively impact our salmonids and their habitat. This was observed in summer of 2015 when a warm, wet
winter with extreme low snow pack levels, coupled with a dry, hot summer, created dire conditions for salmon
(DeGasperi 2017). The Muckleshoot Indian Tribe reported adult Chinook salmon dying in the stream just below
the Soos Creek hatchery (H. Coccoli, pers. comm.), and Washington Department of Fish and Wildlife data
indicated higher than typical numbers of female Chinook with high egg retention (pre-spawn mortality) (Draft
WDFW data 2017) . The true impact of 2015 will not be understood for several years. We do know that impacts
from climate change are occurring, will continue and get worse, and will affect all life stages of Pacific salmon
(Mauger et al. 2015).
While we know the climate is changing, the magnitude and precise timing of those changes are less certain. This
issue briefing is for planners, citizens, policy makers and restoration practitioners involved in salmon recovery to
understand the expected impacts and help prioritize restoration and protection actions that will help mitigate the
effects of climate change. For this paper, we rely on the science in the CIG State of Knowledge report, which
predicts climate change impacts into mid-century. This document is intended to highlight the best available
AGENDA ITEM #6. e)
2
science about climate change and the ways salmon and their habitat will be impacted in the Green/Duwamish and
Central Puget Sound watershed. The key actions from this report are recommendations for restoration priorities
that build resilience for salmon as well as the larger ecosystem, rather than a list of specific prioritized habitat
restoration projects. References to the relevant literature are included; readers may refer to those for more
information on topics of interest.
Climate variability, expected changes, and impacts to salmon
The Puget Sound’s diverse landscape and climate have driven adaptation and biodiversity in our local flora and
fauna. The Pacific Northwest climate naturally varies seasonally as well as year to year between cool and hot, wet
and dry. We are familiar with the natural variability in our atmospheric weather and oceanic patterns, but ocean
conditions also vary on inter-annual and decadal scales. Year to year variability is generally associated with the
familiar El Niño Southern Oscillation (ENSO) which affects ocean temperatures as well as global precipitation and
temperature. Longer term decadal patterns are often described by the Pacific Decadal Oscillation (PDO; see
section 6 for more information), a pattern defined by variations in sea surface temperatures in the North Pacific
(NWFSC, NOAA https://www.nwfsc.noaa.gov/research/divisions/fe/estuarine/oeip/ca-pdo.cfm).
The Puget Sound region is already experiencing some of the ways climate change will exacerbate and prolong
naturally occurring stressful environmental conditions. The rate of current greenhouse gas emissions will make
these extreme conditions more common in coming decades. We have already seen higher than normal air
temperatures; by mid-century, annual average air temperatures are projected to rise between 2.3 and 3.3
degrees Celsius (C) (4.2 – 5.9 degrees Fahrenheit), exacerbating surface water warming. Models used to inform
the Climate Impact Group’s State of the Knowledge Report show a decline in summer precipitation and increases
in precipitation during fall, winter and spring. The region’s snowpack is expected to decrease with warmer, wetter
winters. The decline in snow pack has been observed through the National Resource Conservation Service (NRCS)
snow telemetry monitoring (SNOTEL). In 2015, the water derived from snow melt was recorded well below the 30
year median from December to July. However, the data from NRCS show that overall precipitation in the
Green/Duwamish watershed was average in 2015, indicating that in this year precipitation shifted from snow to
rain (www.wcc.nrcs.usda.gov/snow/) (Figure 1). The data from NRCS and other sources show that typical snow-
dominated elevations are shifting to more rain and less snow, and that headwater areas typically dominated by
rain-on-snow events will become rain-dominated. This suggests that our region will experience more precipitation
as rain, less snow, more frequent and severe rain-driven flooding events, and more very low summer flows
(Mauger et al. 2015).
AGENDA ITEM #6. e)
3
Figure 1. Plot of cumulative snow water equivalent and precipitation for 2015 water year at the Stamped Pass SNOTEL site compared to
historic data (from King County 2017
Climate change will challenge the survival of salmon in our watershed. Pacific Northwest salmon populations have
declined dramatically over the last several decades, and climate change impacts are expected to further degrade
salmon numbers in the years ahead, affecting salmon life histories, feeding, migration, growth, and health. Thus it
is urgent that we implement projects and policies that restore and protect areas to improve our basin’s hydrologic
patterns and habitat functions that support salmon in their various life stages. Salmon recovery advocates in the
basin must implement restoration and protection actions that remain successful under a changing climate.
Climate effects should influence the way WRIA 9 partners approach recovery now and in the future.
Projected climate changes and their impacts to salmon are summarized in Figure 2, which shows the anticipated
timing of climate impacts seasonally and their effects on the associated salmonid life stages in fresh water and
estuarine areas. Table 1 shows each climate impact’s effects on salmon - as well as the primary areas of the basin
where each effect will be felt. Together, the table and figure can be used to understand, in brief, how and where
projected climate impacts will affect salmon in the Green/Duwamish and Central Puget Sound watershed.
AGENDA ITEM #6. e)
4
Figure 2. Salmonid life stages and impacts of climate change (adapted from Beechie et al., 2012.) AGENDA ITEM #6. e)
5
Table 1. Anticipated climate effects, impacts to salmon and critical geographic areas of occurrence.
Climate impact Salmon impact Primary geographic area
Hydrology Shifting timing of life cycle transitions;
scouring/smothering redds; stranding
redds and juveniles; loss of thermal
and flood refugia; less complex habitat;
migration barriers due to extreme low
and/or high flows
Upper Green, tributaries and nearshore
drainages, especially where it is currently snow-
dominated in winter will have the greatest
impacts – Soos, Newaukum, Mill, Mullen creeks
(and other lower elevation tributaries) will be
impacted primarily by increased winter rain
intensities and lower flows as they are not
directly affected by mainstem flow management
or snow. Impacts to the Middle and upper
Lower Green spawning reaches may be
somewhat mitigated by water management at
the HHD.
Temperature Can be lethal above 22 degrees C; sub-
lethal effects above 17 C include
developmental abnormalities, altered
growth rates, non-fertilization of eggs;
altered food web; altered migration
timing; altered predator/prey
relationship; reduced disease
resistance
Temperature will be a concern for the whole
watershed. However, the mainstem is generally
warmer than the tributaries and will likely to
remain so into the future.
Stormwater runoff Increased peak flows and reduced
summer base flows causing channel
scour and incision, channel and habitat
degradation for fish as well as benthic
invertebrates, resulting in an altered
food web, and compounding other
hydrologic effects. Increased erosion
could cause an increase in mobilized
fine sediments, which in addition to
degrading habitat for salmon by filling
in gravels and smothering redds, may
carry toxic contaminants. Increased
water pollution may cause chemical
contamination of juvenile salmon and
their prey, food web alteration and
pre-spawn mortality.
Existing developed areas generally do not meet
today’s stormwater control standards; runoff
generally is directed quickly via pipes to streams
and Puget Sound without treatment. Hydrologic
effects are primarily to tributary streams and
direct drainages to Puget Sound. Infiltration
reduces pollutant concentrations and slows the
flows into streams, reducing potentially harmful
peak flows. Frequent, intense peak flows could
result from a combination of increased urban
density and more intense winter storms. Some
toxic pollutants may increase due to increased
storm runoff in combination with increases in
population, particularly those that are detected
year-round.
Sedimentation Lethal conditions, smothering of
interstitial spaces in redds and choking
of gills; interference with migration
cues; decreased resistance to disease;
altered /decreased habitat
Upper Green, Middle Green
Sea level rise Shifting habitat range; loss of estuarine
habitat; altered food web; could create
passive gains in habitat depending on
The Puget Sound nearshore and the Duwamish
River. Lower lying areas and armored shorelines
in the Central Puget Sound watershed nearshore
AGENDA ITEM #6. e)
6
nearby infrastructure constraints,
elevation, and vegetation gradients
(West Point to Federal Way and Vashon-Maury
Island) and Duwamish estuary are most at risk
to habitat shifts/loss
Ocean acidification and
increased temperature
Altered food webs; decreased food
availability; decreased ocean survival;
diminished dissolved oxygen affecting
metabolism; altered migration pattern
Puget Sound, Salish Sea, and Pacific Ocean
Hydrology
Climate Impacts on Winter Hydrology
Stream flows in winter will be affected in the following ways:
More winter precipitation will fall as rain and less as snow.
Upper areas of the watershed will have less snowpack, which will change the runoff pattern dramatically.
Instead of having moderate runoff events in winter and again in spring, there will be much more runoff in
winter and much less in spring (Figure 4 and 4). This will affect water temperatures as well, especially in
spring and early summer.
More intense rainstorms in winter will cause higher winter peak flows.
Winter peak flows are expected to increase by 28%-34% by the 2080s (Mauger et al. 2015).
Average annual rainfall is projected to increase slightly (but the increase will be small relative to natural
variability) (Mauger et al. 2015).
Figure 3. Streamflow is projected to increase in winter and decrease in spring and summer in all WRIA 9 drainages, with the biggest
changes occurring in “mixed rain and snow” basins. Results are shown for a typical warm, lowland basin (left), and a typical upper
elevation basin with substantial area near the current snow line. Adapted from Hamlet et al. (2013)
Green River and
upper elevation
tributaries
Nearshore and
lowland
tributaries
AGENDA ITEM #6. e)
7
Figure 4. Less snow and more rain in winter is projected to cause higher peak stream flows in winter and less stream flow in spring. This
pattern becomes more pronounced over time. Source: University of Washington Climate Impacts Group, PS State of Knowledge Report
(Mauger et al. 2015)..
Climate Impacts on Summer Hydrology
Summer stream flows are expected to change in the future as follows:
Diminishing snowpack will lead to lower river flows earlier in the year and extending through summer.
Decline in summer rain (22% less summer rain likely by 2050’s (Mauger et al. 2015)).
Less summer rain will extend the duration of low flow impacts such as warmer stream temperatures,
streams disconnected from floodplains and lakes, changes from year-round to seasonal flow over more
area, and less available habitat.
Lower water during summer will result in less complex habitat for fish because the channel edge will no
longer be next to edge vegetation, which fish use as cover.
Salmon Impacts
The change in hydrologic patterns from climate change will likely have both episodic and catastrophic
impacts to the survival rate of salmonid populations.
Hydrologic disruption will alter the timing and magnitude of high and low stream flows and the
corresponding temperatures.
AGENDA ITEM #6. e)
8
Winter Impacts on Salmon
More frequent winter floods will increase the risk of redd scouring and flushing early hatched fry down
into lower river and salt water habitats, reducing incubating egg and fry survival rates respectively. This
impact will occur throughout spawning reaches, but especially in spawning reaches with levees that focus
flood energy and limit floodplain connectivity. These risks can be reduced or increased on the mainstem
by flow management choices made at the Howard Hanson Dam. Risks can be reduced by capturing flood
waters above the dam. Risks can be increased, especially when flows are kept artificially high (above scour
velocities) for longer periods than natural to reduce water levels in the reservoir to make room for
incoming storms. CIG is undertaking further analysis of climate change impacts on the Green River that
takes into account the effects of the Howard Hanson Dam. This section should be revisited after that
analysis is completed.
In tributaries, increased winter flows can bring increased sediment loads that smother redds, and reduce
a juvenile salmon’s ability breath, reducing survival. In the mainstem Green River below Howard Hanson
Dam, sedimentation rates are expected to be low because a large amount of the coarse sediment is
captured above the dam in the reservoir.
High winter flows will decrease slower water habitat available for juvenile fish in some areas. In others, it
will increase juvenile salmon access to off-channel, floodplain habitats for rearing. High flows may also
cause benefits by causing channel migration, which could create new slow water habitats. In such cases,
stranding of juveniles could occur.
Lack of slower water habitat increases the risk of flushing juveniles rearing in the freshwater out to
estuary or ocean too soon.
Higher peak flows are expected to increase bank erosion, creating wider bank full widths for local area
streams, especially in snow dominated areas. This will exacerbate existing undersized culverts (Wilhere et
al. 2016).
Summer Impacts on Salmon
Reduced water levels early and higher water temperatures could disrupt or modify juvenile chinook
migration, and salmon and steelhead adult migration and spawning.
Less water will limit the amount of spawning habitat available.
Declining snowpack will reduce duration and volume of spring snow melt.
Decreased spring and summer flows and warmer water will be the result of dry summers and high air
temperatures, as we saw in summer 2015 (Figure 5) (DeGasperi 2017).
Earlier low flows can disconnect stream habitats and strand juvenile fish and prevent access to spawning
areas.
The concentration of fish in a few areas due to low flows, can increase the spread of disease, food
competition and predation.
AGENDA ITEM #6. e)
9
Figure 5. Stream temperatures measured along the length of the Green River from above the Howard Hanson Dam reservoir to
Tukwila at River Mile 7.9 on July 4, 2015. Temperatures are well above state temperature standards for the 7-day average daily
maximum, and reached lethal levels in all subwatersheds. From (DeGasperi 2017).
Local context
The majority of the basin will feel the effects of higher winter flows due to either reductions in snow fall or
increases in rain intensity. Increases in the length of time of summer low flows will likely affect portions of the
upper Green subwatershed most, as well as the mainstem Green River below the dam. The effects on the
mainstem below the dam may be mitigated to a limited extent by water management of the reservoir.
Reaches that are leveed, even partially, and disconnected from their floodplains will exhibit the largest impacts in
frequency and intensity of winter flows. The Lower Green has a high proportion of leveed banks, and the Middle
Green River has discontinuous levees. In the Lower Green the floodplain has been largely disconnected, with only
about 20% of its historic floodplain area still accessible during a 100-year flood event (Figure 6). Even the less
frequently leveed spawning reaches in the Middle Green River will be less hospitable to salmon with these
hydrologic changes.
Green River Mainstem Longitudinal Profile
7-Day Average Maximum Temperature
USGS/WDFW River Mile
0102030405060Temperature (oC)0
5
10
15
20
25
30
July 4, 2015
TMDL 7Q10 Existing Shade
TMDL System Potential Shade
Water Quality Standard
Potential Lethality Threshold
July 24, 2006
Newaukum Creek
Soos Creek
Mill CreekOutlet of
Howard Hanson
Dam
AGENDA ITEM #6. e)
10
Figure 6. Length of banks with levees and revetments managed by King County Flood Control District in each subwatershed area along
the main stem Green and Duwamish Rivers, and the amount forested and unforested. Data from King County GIS (does not include all
flood facilities).
Lower summer flows will affect most streams and rivers. These conditions will reduce the amount of habitat area
available, allow for quicker increases in water temperature, and the loss of the late spring/early summer increase
in flows from snow melt may cause younger fish to leave the system earlier due to warm water and less habitat
area, resulting in lower overall productivity. Small tributaries in the Green River valley, Duwamish tributaries, and
nearshore drainages will likely go dry or become disconnected from the mainstem or Puget Sound more
frequently.
Technical Recommendations
● To address low summer flows, groundwater, and low volume storm events, implement low impact
development practices and green stormwater infrastructure, including runoff dispersion and infiltration,
where soil conditions allow and where it will not increase risks of landslides or flooding downslope.
Increasing infiltration can replenish groundwater and maintain stream flows during warm, dry weather.
● Install and/or retrofit stormwater management infrastructure to address the increased runoff volume
from current and future development and projected climate change.
● Research and implement innovative restoration practices (e.g., beaver introduction, wetland restoration,
stormwater management programs, policies and technologies) where appropriate to dampen the effects
of shifting hydrology. Work toward resilience by encouraging natural processes that may moderate
expected shifts.
● Identify how habitat boundaries, such as floodplains, are changing. Protect shorelines at risk of being
armored as climate change advances. Protect habitat outside current habitat boundaries. Secure land
that will be inundated by increased flooding and sea level rise.
AGENDA ITEM #6. e)
11
● Headwaters are critical to providing cool, plentiful water. Monitor land use closely to minimize impacts to
hydrology. In particular, where headwater streams are disconnected from their floodplains, work on
reconnection to restore processes of water storage.
● Restore floodplain areas that provide flood storage and slow water during frequent, “ordinary” flood
events (e.g., those that occur every one to five years) by reconnecting the floodplain (e.g.,
removing/setting back levees). This will be important above and adjacent to spawning grounds to counter
the increased risk of higher flows scouring spawning areas.
● Remove and fix barriers like culverts and floodgates to ensure access to tributaries.
● Culverts have a life span of 50 to 100 years. Design new and replaced culverts to accommodate expected
flows in 50 to 100 years so new fish passage barriers are not created.
● Work with water supply and dam operators like the U.S. Army Corps of Engineers and Tacoma Public
Utilities to use reservoirs to ameliorate hydrologic impacts, especially during low flow periods.
● Undertake an evaluation of water rights in the basin. Consider creating a follow up program to acquire
water rights to rededicate back to the river, and support efforts to retain sufficient flows for fish.
● Support expanding outreach programs that reduce water usage in order to have more water available for
streams and rivers (e.g. basic education, incentives for residences to upgrade to low flow devices, improve
efficiency of irrigation systems).
● Consider placing more importance on increasing amount of a large wood in rivers in streams to improve
hyporheic exchange that could moderate maximum temperatures.
● Studies have shown that young tree stands (<100 years) can decrease summer base flows by almost half.
Work with forestry managers and researchers to investigate longer stand rotations and selective logging
to improve basin hydrology (Perry and Jones 2016).
Temperature
Climate Impacts
Water temperatures will be affected by the air temperature anticipated increase by 4 to 5 degrees F by
2080 (Figure 7) (Mauger et al. 2015, Mauger 2016),
Increased air temperatures keep streams from cooling down as they used to over evenings or seasons.
Over the last century, the frost-free season has lengthened by 30 days, with nighttime temperatures
increasing by 1.1 degrees C (Mauger et al. 2015).
Globally, fifteen of the last sixteen years have been the warmest years on record (NOAA 2016) (Mauger et
al. 2015)
Warmer temperatures will accelerate snow melt in the summers and decrease snow accumulation in the
winters. Streams will not have a source of cool water in spring in the upper portions of the watershed.
During low flow periods, groundwater will likely have a greater influence on streams as a water source
and temperature regulator (King County, 2016, unpublished raw data).
AGENDA ITEM #6. e)
12
Figure 7. Projections of how changes in air temperature produced by climate models will affect stream temperatures in the Green River
Basin (Mauger 2016, based on NoRWeST data).
Salmon Impacts
Warm water temperatures in fresh, estuarine, and marine waters can cause lethality and many sub-lethal
effects that can reduce productivity for many life history stages of salmon
Water temperatures above 23 degrees Celsius can kill salmonids within a few seconds to hours (Ecology,
2000).
Warm water impacts on adult salmon:
o Adult salmon avoid swimming through water warmer than 16 degrees Celsius, which can disrupt
their migration for spawning.
o Water at 21-22 degrees Celsius can block migration, resulting in pre-spawn mortality.
o When salmonids hold and migrate in higher temperature water, there is an increase in sub-lethal
effects such as egg abnormalities (e.g., odd number of eyes) or outright mortality (Richter and
Kolmes 2005).
AGENDA ITEM #6. e)
13
Sub-lethal effects of warmer stream temperatures can lead to lower growth, reduced fitness and survival
of juvenile salmonids as follows:
o Warm water decreases the supply of oxygen available to fish, disrupts metabolism, and increases
susceptibility to toxins (Crozier 2015).
o Dissolved oxygen decreases in warm water, creating “dead zones.” Even if fish can leave these
zones, some important food sources cannot move and will die, decreasing salmon food supply. If
the fish cannot escape the “dead zones,” they too can die.
o Warmer temperatures can reduce preferred insects and their availability, causing weight loss.
o Slight increases in water temperatures increase juvenile metabolism rates, sometimes causing
them to stop feeding even if food is available.
o Warmer temperatures increase susceptibility to sediment toxicity (Servizi and Martens 1991).
o Warmer temperatures early in the year can disrupt the smoltification process and change how
and when juveniles outmigrate from the system.
By 2080 it is expected that in the Green River the number of river miles exceeding salmonid thermal
tolerances (>18°C) will increase by 70 miles (Figure 7).
Local Context
Increased water temperatures are already a problem in many areas of the watershed, and are expected to
worsen.
In extreme low-flow, hot summers, tributaries including Crisp Creek (RM 39.6), Icy Creek (RM 48.3),
Palmer Springs (RM 56.3), Resort Springs (RM 51.3), Black Diamond Springs (RM 49.5), Lones Levee
Channel (RM 37.5), Coho Channel (RM 36.9), and the Duwamish tributary at RM 6.4appear to maintain
cooler temperatures, but some can still exceed state 7 day average temperature standards (DeGasperi
2017).
Many major tributaries to the Green River, while cooler than the Green River, regularly exceed state
water temperature standards, including Soos, Newaukum and Mill Creeks, largely due to lack of riparian
buffers (DeGasperi 2017).
Cold water refugia not associated with tributaries or side channels include the Green River Gorge due to
topographic shading, groundwater and hyporheic exchange zones from RM 55-32 in the Middle Green,
and areas around alluvial deposits between Soos Creek (RM 33.4 and Mill Creek (RM 23.8).
Above Howard Hanson Dam, cold water refugia may include the North Fork Green, Charley Creek, Gale
Creek, Smay Creek and Sunday Creek (DeGasperi 2017).
The reservoir above Howard Hanson Dam becomes thermally stratified during the summer, with cooler,
dense water at the bottom and warmer water near the surface. Water is released from approximately 40
feet above the bottom of the reservoir, and therefore, the Green River immediately downstream of the
spillway is cooler during the summer and warmer in late summer and fall than it was at the same point
prior to dam construction (DeGasperi 2017).
Technical Recommendations
● Identify, protect and enhance processes and habitats that provide cool water. Protect cool headwater
streams and other cold water refugia (at least 2 degrees Celsius colder than the daily maximum
temperature of adjacent waters). Locate groundwater sources and seeps and protect natural processes
AGENDA ITEM #6. e)
14
that create critical habitats like wetlands, tidal flats, marshes and estuaries; this will help ensure that
water can be stored, recharged, and delivered at a moderated pace and temperature.
● Protect and restore the Green/Duwamish tributaries that are cooler than the mainstem river and can
provide salmon with cold water refugia. Emphasize opening access to floodplain tributaries, including
small stream systems. Continue work to moderate mainstem temperatures by setting back levees and
softening bank revetments, and planting trees.
● Remove and fix barriers like culverts and floodgates to ensure access to tributaries, connect oxbows, and
protect pools to restore cold water refugia.
● Monitor land use changes, particularly tree removal and new development, to quantify and mitigate for
impacts to temperature.
● Undertake an evaluation of water rights in the basin. Consider creating a follow up program to acquire
water rights to rededicate rights back to the river.
● Look at creating/expanding outreach programs that reduce residential/commercial/industrial potable
water usage in Tacoma in order to have more water available for streams and rivers (e.g. basic education,
incentives for residences to upgrade to low flow devices, improve efficiency of irrigation systems)
● Evaluate the impacts of water withdrawals for irrigation and cooling, and determine if other sources can
be used, including reclaimed water.
● Investigate the relative contribution of runoff from paved surfaces on water temperatures, and where
appropriate,
● Increase the use of low impact development practices in both developed and developing areas, including
reducing impervious area, infiltrating or dispersing runoff, and planting trees to minimize the impact of
urban areas on stream temperatures (Herb et al. 2008, Jones et al. 2012, Van Buren et al. 2000).
● Promote and fund the WRIA 9 Riparian Revegetation Strategy (Ostergaard et al. 2016) to increase the rate
of planting and protecting riparian buffers to help stabilize in-stream temperatures and reduce sediment
and toxin load.
● Work with the ACOE to further explore work done by WEST (2011) regarding how water is passed from
the reservoir to downstream habitats to determine whether the outlet could be redesigned to release
cooler water.
Ocean Conditions
Climate Impacts
Salmon spend much of their lives in the North Pacific feeding from the ocean’s food web. Natural variations in
climate cycles strongly influence ocean conditions. One of these cycles is the Pacific Decadal Oscillation (PDO).
PDO is a climate index based on multi-decadal patterns in sea surface temperatures (NWFSC 2015). As an
indicator, PDO has warm and cool phases. Over the past century, these phases oscillated irregularly over a period
of 10-40 years with more recent short-term (3-5 year) events (NWFSC 2016). These phases are correlated with
Northwest climate and ecology and variations in northeast Pacific marine ecosystems. Specifically, PDO is
correlated with patterns in atmospheric pressure, prevailing winds, currents, coastal upwelling impacts, winter
land-surface temperature and precipitation and stream flow, as well as historic salmon landings from Alaska to
California (Mantua et al. 1997).
These warm and cool phases are linked to composition, abundance, and distribution of plankton communities, the
basis of the ocean food web. PDO is hypothesized to alter the source of ocean water off the West Coast. In cooler
AGENDA ITEM #6. e)
15
phases, northerly winter winds bring cold water and boreal zooplankton communities from the Gulf of Alaska
south into the California Current. Northerly winds cause coastal upwelling which generally brings cold, salty,
nutrient-rich water to the surface. These conditions increase phytoplankton production that support zooplankton
communities dominated by cold-water, lipid-rich copepods. These conditions are correlated with good salmon
survival. When the PDO shifts to a warm phase, warm southwesterly winds result in more water from the warmer,
fresher, North Pacific Current and its associated tropical and sub-tropical warm water lipid-depleted copepods.
These conditions are correlated with poor salmon survival for populations in the lower 48 states.
While regional climate in the Pacific Northwest is driven by these natural variations in climate and ocean
conditions in the Pacific, we don’t know how climate change will affect these variations. Climate change is
expected to increase ocean temperatures in the northeast Pacific by 1.8C by 2040 (Mauger et al. 2015), which
experts hypothesize will result in a 1-4% increase in marine mortality for salmon from Puget Sound to California.
Weather patterns in 2014 and 2015 caused +2-4C temperature anomalies over a large area of the northeast
Pacific Ocean labeled “The Blob,” which may be a precursor of extreme climatic variations that will become more
common in the future. Salmon returns in 2015 were some of the worst on record, and fish that did return to
freshwater experienced high mortality from blob-related drought and subsequent warm and low stream flows in
freshwater habitat (Peterson et al. 2015).
Salmon Impacts
While it is clear that PDO cycles affect salmon survival, the impacts of climate change on the natural
variations in PDO cycles that determine ocean conditions are not known, and the effect of ocean
conditions on salmon is not well understood.
The ways in which salmon are impacted will depend on the life stage in the ocean ecosystem, how long
they spend in the ocean, and other ocean variables like plankton communities. Further study is important
to understand how climate change will affect salmon, and might be already doing so.
Local Context and Technical Recommendations
Effects of ocean conditions will be felt most strongly in Pacific Ocean, but may also be seen in the Puget Sound
nearshore within WRIA 9.
Stormwater Runoff
Climate Impacts
Increases in predicted rainfall events will increase flow volumes from areas not retrofitted to new
stormwater standards accounting for climate change impacts. In some cases, this could also increase
pollutant discharges from stormwater runoff or groundwater leaching through contaminated areas into
rivers and streams, particularly for those pollutants that are detected in stormwater year-round, such as
PAHs, phthalates and pesticides (Hobbs et al. 2015). Some of these issues may be addressed by new
stormwater standards being implemented with new and redevelopment.
Stormwater can also increase the peak flows during storm events, scouring stream beds and banks,
adding to sediment loads due to channel and bank erosion, and flushing out habitat forming debris.
Salmon Impacts
Stormwater impacts to salmon are varied and can cause both lethal and sub-lethal conditions.
AGENDA ITEM #6. e)
16
Toxics from stormwater can cause mutations in salmonid eggs and rearing juvenile salmonids, harm brain
and heart development, and cause direct mortality (McIntyre et al. 2015).
Stormwater washes in excess sediment and nutrients that can cause dissolved oxygen to decrease,
creating hypoxic conditions for both fish and macroinvertebrates, disrupting the food chain (McIntyre et
al. 2015).
A direct, observable impact of untreated stormwater is pre-spawn mortality, when adult coho die before
they are able to spawn (Spromberg et al. 2016).
Local Context
Stormwater affects urban and suburban areas that drain to small streams and tributaries, such as Miller and
Walker creeks, Longfellow Creek, Soos Creek, Newaukum Creek, and Mill Creek, as well as urbanized areas along
the Lower Green like Kent, Auburn, Renton and Tukwila. As detailed in a recent stormwater retrofit analysis of
WRIA 9, most developed areas in the watershed did not initially have any stormwater controls, and the early
stormwater control methods and requirements have generally been deemed inadequate by today’s standards in
terms of improving water quality and impacts to stream hydrology. These areas are not yet retrofitted to
minimize stormwater runoff (King County 2014). Cities and businesses are already implementing municipal and
individual stormwater management permits (known as NPDES, or National Pollutant Discharge Elimination
System) to manage stormwater on new and redeveloping areas, control pollution sources at businesses, and track
and eliminate illicit discharges into the storm system. In addition, treating and retaining stormwater on developed
areas before it runs off into streams and rivers will reduce fish exposure to chemicals and stressful hydrologic and
water quality conditions (Spromberg et al. 2016).
Technical Recommendations
● Study and prioritize areas that need stormwater retrofits and accelerate those actions (See King County
(2014) for one possible approach).
● Conduct small-scale subwatershed stormwater infiltration feasibility studies and prioritize potential
retrofit projects, looking for cost savings where capital projects are already planned (e.g., Miller-Walker
Stormwater Retrofit Implementation Plan (HDR Engineering 2015)).
● Incentivize public-private partnerships to increase the rate of stormwater retrofits on private properties
and road right-of-ways.
● Infiltrate road and parking lot runoff wherever possible, prioritizing the areas with the highest use.
Partner with Washington State Department of Transportation to develop and implement a plan to retrofit
state highways throughout the basin. Use the Miller-Walker Basin as a case study to determine the
amount of retrofit needed to improve hydrologic and water quality conditions.
Sedimentation
Climate Impacts
Heavier rains will increase landslide potential across the basin, including marine bluffs.
Heavier rains will also increase stream flows, which can increase erosion and move more sediment
downstream.
Increased sediment loads can affect sedimentation rates in estuary and delta areas.
Increased fine sediments may temporarily cause spawning gravels to fill in, smothering incubating eggs.
AGENDA ITEM #6. e)
17
Increased flows on the mainstem may be dampened by HHD operations, depending on flow rate
decisions. Sediment is already decreased in the mainstem basin due to the amount of sediment trapped
behind the dam; gravel supplementation is continuing in order to maintain spawning habitat in the
Middle Green River.
Salmon Impacts
High levels of suspended solids can kill salmonids by burying redds after spawning and potentially harm
juvenile fish by decreasing dissolved oxygen or smothering their gills.
Suspended sediments also cause chronic sub-lethal and behavioral effects including; reduced foraging
capabilities, stunted growth, stress, lowered disease resistance and interference with migration cues
(Bash 2001).
Local Context
More frequent rain events will likely bring sedimentation impacts from landslides on the hillslopes throughout the
watershed. There existing issues with increased sediment inputs above HHD due to historic logging practices (e.g.
dense road network on steep slopes). The high rains will likely increase the rate of landslides and sedimentation
in this area. While anadromous salmon don’t have access at this time, creating access to the upper watershed is a
high priority action in the Plan. Sedimentation in the upper basin will not impact the Middle and Lower Green
River areas in the near term because the reservoir acts like a large sediment retention pond. However, there will
likely be some increased sedimentation issues in the Middle and Lower Green caused by bank erosion and inputs
from local streams. The off channel habitat creation projects in the Lower Green are at a higher risk than other
project types if sedimentation increases. At this time, it is not clear if the increased sediment load will be
substantial enough to degrade the resilience of restoration projects. The increased rain events will also likely
increase the rate of landsliding and beach feeding along the marine shorelines of WRIA 9. Most drift cells within
WRIA 9 have experienced shoreline armoring that has cut off significant amounts of beach feeding bluffs over the
last 100 years (WRIA 9 Implementation Technical Committee 2012). While the exact effects are not known at this
time and it will likely be drift cell specific, increased sedimentation/beach feeding rates may actually improve
beach conditions by offsetting historic armoring that starved beaches.
Technical Recommendations
● Restore riparian buffers more quickly to help reduce sediment load.
● Protect intact buffers to reduce sediment load and minimize erosion.
● Study and understand sedimentation changes in mainstem and nearshore areas.
Coastal
Effects to the ocean environment are harder to predict and quantify than freshwater effects, but there will be
impacts to salmon survival. The most notable changes expected in Puget Sound’s coastal and marine
ecosystems are sea level rise and ocean acidification.
AGENDA ITEM #6. e)
18
Sea Level Rise
Climate impacts
Sea level in Puget Sound rose 20 centimeters from 1900-2008 and sea level rise (SLR) will continue,
though it is hard to predict exactly how much.
The State of the Knowledge report projects sea level will rise 0.6 meters by 2100 (The Nature Conservancy
and Climate Impacts Group 2016).
Beach habitats and infrastructure along Puget Sound shorelines are already being impacted by SLR.
Nearshore
Increases in SLR means that extreme high water levels will increase and in response flood events will
become more frequent. This means that damaging storms will occur more frequently because storms will
occur at higher water levels (Mauger et al. 2015).
A 1ft increase in water surface elevation means an order of magnitude increase in high water events—so
a 100 year event turns into a 2 year event (Mauger et al. 2015)
Sea level rise will have a myriad of effects on the marine nearshore, including increased bank/bluff
erosion, landslides and “coastal squeeze.” A study in the San Juan islands estimated that toe of bank
erosion caused by SLR would likely double existing bluff erosion rates.
Combined with toe of bluff erosion, the predicted 22% more rain in the winter will increase the risk of
destabilizing nearshore slopes and increase landslides that are triggered from upslope mechanisms.
While sediment supply is critical to a productive and healthy nearshore environment and increased beach
feeding through landslides may benefit beach habitats, increased landslides could heighten the demand
for new bulkheads and enlarging existing bulkheads, further degrading this important process.
Coastal squeeze is a phenomenon that occurs in response to SLR. Marine shorelines that are unarmored
have beaches and beach habitats that migrate inland in response to SLR. Armored shorelines not only
restrict the natural migration of beaches, the beach habitats slowly get squeezed out of existence (Figure
8).
AGENDA ITEM #6. e)
19
Figure 8. Coastal squeeze in nearshore graphic along the Puget Sound Nearshore refers to the shallow areas where forage fish spawn
being squeezed out of existence by shoreline armoring and sea level rise (from Coastal Geologic Services).
Estuary
SLR may convert existing estuarine habitats into predominately salt water habitats and convert some
fresh water habitats (e.g. wetlands) into estuarine habitats.
In the tidally influenced areas of the Duwamish River (up to approximately River Mile 11), SLR may
convert shallow water mudflats to deep water, tidal habitats and marsh areas to mudflats. Marsh areas
may be flooded, and as they move upslope on steep banks, become increasingly narrow edge habitats
over time.
Sea level rise may move salt wedge further upstream into areas that are currently freshwater.
SLR will likely begin to flood low lying upland areas, creating a need to decide if the areas should be
‘defended’ against SLR with levees and other infrastructure or if the areas should be converted to
wetland/estuarine habitats.
Salmon impacts
According to the CIG State of the Knowledge report, sea level rise will increase the area of salt marsh and
transition marsh, shifting the ranges of habitat used by salmon. However, given that the Duwamish
estuary and Central Puget Sound nearshore are highly developed with docks, bulkheads, tide gates and
culverts, it will likely lose marsh and mudflat area and types from coastal squeeze.
Increased erosion from sea level rise and landslides is already bringing requests for more and bigger
bulkheads along the nearshore to protect existing development; additional sea level rise will likely
increase these requests (Kollin Higgins, pers. comm.).
Additional bulkheads will cut off the sediment supply needed by forage fish, a key salmonid prey.
AGENDA ITEM #6. e)
20
The amount of shallow water habitats heavily used by juvenile salmon in late spring early summer in the
nearshore will decrease due to coastal squeeze within the largely armored shorelines of WRIA 9
Local Context
Impacts of SLR and coastal squeeze will be focused in the Duwamish estuary and along the Central Puget Sound
nearshore.
Technical Recommendations
● Identify areas most at risk of losing estuarine habitat, such as mudflat and marsh, by mapping elevations
and monitoring the habitat over time.
● Include a diversity of elevations in estuary projects to allow for shifting boundaries of intertidal and
subtidal habitats into the future.
● Undertake an evaluation of upland areas within the Duwamish most at risk of inundation through SLR, in
conjunction with the communities, businesses, and other stakeholders, to look for opportunities to
transition low-lying upland habitats to aquatic habitats in ways that provide economic, social justice, and
environmental equity benefits (Figure 9).
● Protect marine and freshwater shorelines at risk of being armored as climate change continues.
● Protect habitat outside current habitat boundaries that will become future estuarine habitat.
● Improve regulatory protection in all unarmored marine areas.
● Encourage bulkhead removal or retrofit where possible, but especially at historic feeder bluffs.
● Buy land that will be directly impacted by sea level rise, remove existing infrastructure if necessary, to
allow marine shoreline migration, bluff erosion and/or estuarine marsh migration.
● Work with partners to understand vulnerability of estuary infrastructure under SLR, including levee
maintenance and drainage needs, transportation corridors and wastewater facilities.
AGENDA ITEM #6. e)
21
Figure 9. Map showing projected areas of inundation due to sea level rise in the Duwamish subwatershed, between the 1st Ave S. and
South Park bridges (City of Seattle 2012).
Ocean Acidification – Climate Impacts
Ocean acidification is projected to increase 150-200% by 2100 based on current CO2 emission scenarios
(The Nature Conservancy and the Climate Impacts Group 2016).
Warmer air temperatures will likely cause sea surface temperatures to increase as well (Mauger et al.
2015).
Together these factors can have a wide range of impacts on marine and coastal ecosystems.
AGENDA ITEM #6. e)
22
Salmon Impacts
Ocean acidification is expected to change food availability for salmon during the smolt and ocean life cycle
phases.
The role affected species play in supporting Puget Sound salmon raises concerns about how acidification
could affect the entire Puget Sound and ocean food web (Washington Department of Ecology 2012)
Technical Recommendations
● Protect and restore areas of carbon uptake – including forests, eelgrass and tidal marshes.
Discussion
Tremendous change is expected in the Puget Sound region over the next 20-30 years with respect to increased
human population growth and climate change. The Puget Sound coastal shoreline counties account for 68% of
Washington state’s population: 4,779,172 out of 7,061, 530 people (Alberti and Russo 2016). Nearly half of these
people live in King County. By 2030, the Puget Sound population is estimated to exceed 5.7 million – an 18.2%
increase from 2014 estimates as compared to a 12.7% national growth rate predicted in the same time frame
(Alberti and Russo 2016). This rapid and extensive growth has direct implications to the Green/Duwamish and
Central Puget Sound Watershed.
With the growing demand for homes, clean drinking water, transportation systems, agricultural products, and
strong economies, addressing the impacts of climate change for threatened salmonids is increasingly complex.
Where and how people live in Puget Sound, including the patterns of development and transportation systems,
and economic development all contribute to salmon survival, and hopefully, recovery in the Puget Sound. Climate
change gives urgency to actions that can help mitigate known future effects, in particular, planting riparian trees
for shade. It also gives more urgency to fish passage through Howard Hanson Dam, to open up this extremely
large and higher elevation area for spawning and rearing.
To address these competing forces, planning and implementing salmon recovery actions needs to become more
complex, interdisciplinary, and integrated. We need solutions that benefit many interests and sectors. Salmon
recovery and climate change information needs to be incorporated into local jurisdiction comprehensive plans,
shoreline master programs, critical areas ordinances. We also need additional enforcement of existing land use
regulations, particularly with riparian buffers and nearshore bulkheads.
Efforts to address the impacts of climate change are already underway in many of the WRIA 9 jurisdictions. This
work will need to continue and accelerate to keep ahead of the pace of population growth and climate change.
Conclusions
Different salmon species and their life history types are varied. Over the centuries, species have evolved with
slight differences across the species and within salmonid types to better withstand and adapt to habitat, climate
and ocean conditions. The Plan has identified recovery actions that address viable salmonid population (VSP)
criteria, such as life stage diversity, abundance, productivity, and spatial structure. By addressing these criteria,
we hope to give salmon the best chance for recovery. Climate impacts will directly affect these VSP criteria. For
instance, water temperatures across the basin will likely increase, making some areas inhospitable to salmon, and
AGENDA ITEM #6. e)
23
causing dire conditions for unique life history types such as yearling Chinook. Climate impacts could potentially
decrease suitable summer habitat, impacting the spatial diversity in the system, or increased winter scouring
could affect population abundance and ultimately productivity.
The summer of 2015 shed light on what could be expected in years to come. Along with large-scale strategies at a
global, national and state level to dampen these impacts, work must be done at a basin level. For salmon
recovery, restoration and protection actions must amplify the species’ natural ability to adapt. To give salmonids
the best chance of survival, we must continue implementing the Plan strategy of restoring and protecting river
processes that can adapt and create resilient habitat.
The proposed actions above and summarized in Table 2 and 3 are not new. For the most part they are described
in other Green/Duwamish planning documents. What has changed is the urgency and need to change the rate of
implementing these actions. We must think beyond direct habitat needs (which are still important), to decrease
the intensity of climate impacts likely in 10, 20, and 50 years.
Table 2. Summary of technical recommendations that could be taken for each climate impact
Climate impact Technical Recommendations
Hydrology ● Implement low impact development practices and green stormwater infrastructure in
urban areas.
● Work with water supply and dam operators to use reservoirs to ameliorate hydrologic
impacts, especially during low flow periods.
● Evaluate water rights in the basin, and support efforts to retain sufficient flows for fish.
● Support expanding outreach and incentive programs that reduce water usage.
● Consider increasing amount of a large wood in rivers in streams to improve hyporheic
exchange that could moderate maximum temperatures.
● Work with forestry managers and researchers to investigate longer stand rotations and
selective logging to improve basin hydrology.
● Encourage natural processes that may moderate expected shifts.
● Protect habitat uphill of current floodplains and beaches so habitats can shift and adapt.
● Monitor land use in headwater areas to minimize impacts to hydrology.
● Reconnect disconnected floodplains in mainstems and headwaters.
● Remove and properly size barriers like culverts and floodgates to ensure access to
tributaries, connect oxbows, and protect pools.
AGENDA ITEM #6. e)
24
Climate impact Technical Recommendations
Temperature ● Identify, protect and enhance processes and habitats that provide cool water.
● Protect and restore tributaries and other areas that are cooler than the Green River and
can provide salmon with cold water refugia.
● Remove and fix barriers like culverts and floodgates to ensure access to tributaries,
connect oxbows, and protect pools to restore cold water refugia.
● Monitor land use changes, particularly tree removal and new development, to quantify
and mitigate impacts to temperature.
● Restore riparian buffers more quickly to help stabilize in-stream temperatures and
reduce sediment and toxin load by promoting and funding the WRIA 9 Riparian
Revegetation Strategy.
● Reduce summer water use by encouraging more potable water conservation in Tacoma
and reclaimed water for irrigation and cooling where water is being withdrawn from the
Green River.
● Increase the use of low impact development practices and GSI.
● Work with ACOE to determine whether colder water could be released from HHD.
Stormwater ● Study and prioritize areas that need stormwater retrofits and accelerate those actions.
● Incentivize public-private partnerships to increase the rate of stormwater retrofits on
private properties and road right-of-ways.
● Infiltrate road and parking lot runoff wherever possible, developing partnerships and
prioritizing areas of highest use.
Sedimentation ● Restore riparian buffers more quickly to help reduce sediment load.
● Protect intact riparian buffers.
● Study and understand sedimentation changes in mainstem areas.
Sea level rise ● Identify how habitat boundaries, such as nearshore and estuaries, are changing.
● Protect marine and freshwater shorelines at risk of being armored as climate change
continues.
● Protect habitat at higher elevations than current habitat boundaries.
● Improve regulatory protection in all unarmored marine areas.
● Encourage bulkhead removal or retrofit where possible, but especially at historic feeder
bluffs.
● Buy land that will be directly impacted by sea level rise, remove existing infrastructure if
necessary to allow marine and estuary shoreline migration and bluff erosion.
● Evaluate upland areas in the Duwamish subwatershed at risk of inundation, and work
with community partners transition to aquatic habitat while providing other benefits.
Ocean
acidification
and increased
temperature
● Protect and restore areas of carbon uptake, including forests, eelgrass and tidal marshes.
AGENDA ITEM #6. e)
25
Table 3. Summary of strategies and actions and what climate impact they address
Strategies and Actions Climate Impact
Encourage natural processes that may moderate expected shifts. Hydrology, Temperature
Encourage natural processes and novel restoration practices such as beaver
reintroduction in appropriate areas to help moderate flows and temperature.
Hydrology, Temperature
Protect habitat at higher elevations than current habitat boundaries so
habitats can shift and adapt.
Hydrology, Seal level rise
Monitor land use in headwater areas closely to minimize impacts to
hydrology.
Hydrology, Temperature
Reconnect disconnected floodplains in mainstems and headwaters. Hydrology, Temperature
Remove and resize barriers like culverts and floodgates to ensure access to
tributaries, connect side channels, and protect pools.
Hydrology, Temperature
Reduce summer water use by encouraging more potable water conservation
in Tacoma and reclaimed water for irrigation and cooling where water is being
withdrawn from the Green River watershed.
Hydrology, Temperature
Identify, protect and enhance processes and habitats that provide cool water
(e.g., replant riparian forests, remove levees).
Temperature, Sedimentation
Protect and restore Green River tributaries that are cooler than the mainstem
river and can provide salmon with cold water refugia.
Temperature
Remove and fix barriers like culverts and floodgates to ensure access to
tributaries, connect oxbows, and protect pools to restore cold water refugia.
Hydrology, Temperature,
Sedimentation
Increase the rate of implementation of riparian buffer restoration to help
stabilize in-stream temperatures and reduce sediment and toxin load.
Temperature, Sedimentation,
Stormwater Runoff
Study and prioritize areas that need stormwater retrofits and accelerate those
action
Stormwater Runoff
Protect marine and freshwater shorelines at risk of being armored due to
climate change.
Sea level rise
Improve regulatory protection on in all unarmored marine areas. Sea level rise
Encourage bulkhead removal or retrofit where possible, but especially at
historic feeder bluffs
Sea level rise
Buy land that will be directly impacted by sea level rise, remove existing
infrastructure if necessary in order to allow marine and estuary shoreline
migration and bluff erosion.
Sea level rise
AGENDA ITEM #6. e)
26
References
Alberti, M. and Russo, M. (2016) Puget Sound Trends: A Synthesis of the Drivers Shaping the Future of
our Waters, Prepared by the Urban Ecology Research Lab, University of Washington, Seattle, WA.
Bash, J.C.B.S.B. (2001) Effects of Turbidity and Suspended Solids on Salmonids, Center for Streamside
Studies, University of Washington, Seattle, WA.
City of Seattle (2012) Sea Level Rise Map, pp. The projections and scenarios are based on a 2012
National Research Council report (“Sea-Level rise for the Coasts of California, Oregon, and Washington:
Past Present and Future”). Water levels account for the National Tidal Datum Epoch 1983-2001 (NTDE
2083-2001). The base digital elevation model (DEM) used in the analysis was produced using a 2001
Puget Sound LiDAR Consortium study, which notes a vertical accuracy, or margin of error, of 2011 foot
(NAVD2088). Finally, “breaklines” were not applied; therefore some objects such as piers may not be
accurately depicted., Seattle Public Utilities, Seattle, WA.
Crozier, L. (2015) Impacts of Climate Change on Salmon of the Pacific Northwest: A review of the
scientific literature published in 2014, Northwest Fisheries Science Center, NOAA, Seattle, WA.
DeGasperi, C.L. (2017) Green-Duwamish River 2015 Temperature Data Compilation and Analysis King
County Water and Land Resources Division, Seattle, WA.
Hamlet, A.F., Elsner, M.M., Mauger, G.S., Lee, S.-Y., Tohver, I. and Norheim, R.A. (2013) An Overview of
the Columbia Basin Climate Change Scenarios Project: Approach, Methods, and Summary of Key Results.
Atmosphere-ocean. Toronto ON 51(4), 392-415.
HDR Engineering, I. (2015) Miller-Walker Basin Stormwater Retrofit Planning Study, Implementation
Plan, Seattle, WA.
Herb, W.R., Janke, B., Mohseni, O. and Stefan, H.G. (2008) Thermal pollution of streams by runoff from
paved surfaces. Hydrological Processes 22(7), 987-999.
Hobbs, W., Lubliner, B., Kale, N. and Newell, E. (2015) Western Washington NPDES Phase 1 Stormwater
Permit: Final Data Characterization 2009-2013, Washington State Department of Ecology, Olympia, WA.
Jones, M.P., Hunt, W.F. and Winston, R.J. (2012) Effect of Urban Catchment Composition on Runoff
Temperature. Journal of Environmental Engineering 138(12).
King County (2014) Development of a Stormwater Retrofit Plan for Water Resources Inventory Area 9:
Comprehensive Needs and Cost Assessment and Extrapolation to Puget Sound, Water and Land
Resources Division, Seattle, Washington.
Mantua, N.J., Hare, S.R., Zhang, Y., Wallace, J.M. and Francis, R.C. (1997) A Pacific Interdecadal Climate
Oscillation with Impacts on Salmon Production. Bulletin of the American Meteorological Society 78(6),
1069-1079.
AGENDA ITEM #6. e)
27
Mauger, G.S., Casola, J.H., Morgan, H.A., Strauch, R.L., Jones, B., Curry, B., Isaksen, T.M.B., Binder, L.W.,
Krosby, M.B. and Snover, A.K. (2015) State of Knowledge: Climate Change in Puget Sound, Report
prepared for the Puget Sound Partnership and the National Oceanic and Atmospheric Administration,
University of Washington, Seattle.
Mauger, G.S. 2016. Presentation to the WRIA 9 Implementation Technical Committee on October 26,
2016. Seattel WA.
McIntyre, J.K., Davis, J.W., Hinman, C., Macneale, K.H., Anulacion, B.F., Scholz, N.L. and Stark, J.D. (2015)
Soil bioretention protects juvenile salmon and their prey from the toxic impacts of urban stormwater
runoff. Chemosphere 132, 213-219.
NWFSC (2015) Pacific Decadal Oscillation, NOAA Fisheries, Northwest Fisheries Science Center.
NWFSC (2016) Ocean ecosystem indicators of salmon marine survival in the Northern California Current,
NOAA Fisheries, Northwest Fisheries Science Center.
Ostergaard, E., Blanco, J., Coccoli, H., Cummins, A., Kahan, J., Knox, M., Koon, J. and Stanton, T. (2016)
Re-green the Green: Riparian Revegetation Strategy for the Green/Duwamish and Central Puget Sound
Watershed (WRIA 9), WRIA 9 Riparian Revegetation Working Group for the WRIA 9 Watershed
Ecosystem Forum, Seattle, WA.
Perry, T.D. and Jones, J.A. (2016) Summer streamflow deficits from regenerating Douglas-fir forest in the
Pacific Northwest, USA. Ecohydrology, n/a-n/a.
Peterson, W.T., Fisher, J.L., Morgan, C.A., Peterson, J.O., Burke, B.J. and Fresh, K. (2015) Ocean
Ecosystem Indicators of Salmon Marine Survival in the Northern California Current, National Marine
Fisheries Service, Seattle, WA.
Richter, A. and Kolmes, S.A. (2005) Maximum temperature limits for Chinook, coho, and chum salmon,
and steelhead trout in the Pacific Northwest. Reviews in Fisheries Science 13(1), 23-49.
Servizi, J.A. and Martens, D.W. (1991) Effect of Temperature, Season, and Fish Size on Acute Lethality of
Suspended Sediments to Coho Salmon (Oncorhynchus kisutch). Canadian Journal of Fisheries and
Aquatic Sciences 48(3), 493-497.
Spromberg, J.A., Baldwin, D.H., Damm, S.E., McIntyre, J.K., Huff, M., Sloan, C.A., Anulacion, B.F., Davis,
J.W. and Scholz, N.L. (2016) Coho salmon spawner mortality in western US urban watersheds:
bioinfiltration prevents lethal storm water impacts. Journal of Applied Ecology 53(2), 398-407.
The Nature Conservancy and Climate Impacts Group (2016) Adapting to Change: Climate Impacts and
Innovation in Puget Sound. Conservation, P.S. (ed), University of Washington, Seattle, WA.
The Nature Conservancy and the Climate Impacts Group (2016) Adapting to Change: Climate Impacts
and Innovation in Puget Sound. J. Morse, J.I., L. Whitely Binder, G. Mauger, and A.K. Snover (ed), p. 24,
The Nature Conservancy, Seattle, WA.
AGENDA ITEM #6. e)
28
Van Buren, M.A., Watt, W.E., Marsalek, J. and Anderson, B.C. (2000) Thermal enhancement of
stormwater runoff by paved surfaces. Water Research 34(4), 1359-1371.
Washington Department of Ecology (2012) Ocean Acidification in Washington State: From knowledge to
Action.
WEST (2011) Development of a CE-QUAL-W2 Model for Howard A. Hanson Reservoir, Prepared for U.S.
Army Corps of Engineers, Seattle District, Seattle, Washington.
Wilhere, G., Atha, J., Quinn, T., Helbrecht, L. and Tohver, I. (2016) Incorporating Climate Change into the
Design of Water Crossing Structures, Washington Department of Fish and Wildlife, Olympia, WA.
WRIA 9 Implementation Technical Committee (2012) WRIA 9 Status and Trends Monitoring Report:
2005-2011, King County Water and Land Resources Division, Seattle, WA.
AGENDA ITEM #6. e)
Green-Duwamish and Central Puget Sound Watershed Salmon Habitat Plan • November 2020 PAGE
E-1
ROGER TABOR
Appendix E:
Capital Project Evaluation Template
AGENDA ITEM #6. e)
PAGE
E-2 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Nearshore Evaluation Criteria
Evaluation
Criteria
Criteria
Weight
(sum to
100%)
Indicator
of potential
benefits Details
How to assign values
to input column
Evaluation level 1 - Identify the best places to do work
Project size 25 Project area Count only areas that
will be part of habitat
project--not entire parcel
Specify number of acres
Assumes most other benefits
are positively correlated with
size
Shoreline length Measure length of existing shoreline,
whether armored, or unarmored.
Specify number of linear feet (in 100’s; ex 200 ft = 2)
Location Is the site in a high-value location?Feeder bluff located in the first third of the drift cell (4 pts)
Feeder bluff elsewhere (2 pts)
Pocket estuary/ stream mouth (2 pts)
Priority in revegetation strategy (1 pt)
Adjacent to or inholding of existing
public land/easements (1 pt)
Drift cell
condition
What percentage of
the drift cell sediment
sources are currently “intact”?
0-25% (0 pts)
>25-75% (3 pts)
>75% (2 pts)
Evaluation Level 2 -Identify the projects that can generate the most lift
Expected
post-project
benefits
75 Immediate
habitat lift
(rearing and
forage fish/
intertidal)
Bulkhead removal (or
stream bank armor for
stream mouths)
Length of bulkhead removal;
Linear feet (in 100’s)
*If soft shoreline armoring to replace it,
add “1” to input cell
Fill removal Acres of potential fill removal
Pocket estuaries If project restores the hydrology and
extent of a pocket estuary (3 pts)
Overwater structures If removing (3 pts)
If upgraded to non-creosote and
light-transmitting (_ pts)
Long-term
habitat lift
(process-
restoration)
Feeder bluff restoration Percent of sediment sources restored
of the drift cell by the project after
restoration is eventually completed
Riparian restoration
(partial includes view
corridors or relatively
skinny widths)
100 ft wide or greater buffer (3 pts)
Partial buffer improvement (_ pts)
CAPITAL PROJECT EVALUATION TEMPLATE
AGENDA ITEM #6. e)
PAGE
E-3 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Duwamish Evaluation Criteria
Evaluation
Criteria
Criteria
Weight
(sums to
100%)
Indicator
of potential
benefits Instructions How to assign values
Evaluation Level 1
Project size
Assumes
most benefits
are positively
correlated
with size
25 Project area Count only areas that will be part of
habitat project--not entire parcel
Number of acres
Shoreline
length
Measure length of existing shoreline,
whether armored, or unarmored.
Creek scores = count only one bank.
Linear feet (in 100’s)
Location Is the site in a higher value location?River Mile 1.0-4.3 (1 pt)
River Mile 4.3-5.5 (2 pts)
River Mile 5.6-10 (4 pts)
Evaluation Level 2
Expected
post-project
benefits
(optional)
75 Immediate
habitat lift
(mostly
substitution
and creation)
BANK TREATMENTS:
Estimate the change in the length of
enhancement (100’s of feet)
Resloping/benching (*0.4 pt)Linear feet (in 100’s)
Wood for habitat (does not include
soft armoring) (*0.2 pt)
Linear feet (in 100’s)
Revegetation length Linear feet (in 100’s)
Revegetation width 165 ft wide (0.5 pt)
100-165 ft wide (0.4 pt)
50-100 ft wide (0.3 pt)
<50 ft wide (0.1 pt )
REARING HABITAT CREATION:
Estimate the excavated area that will
be wetted during Jan-June (at least)
Number in acres
Change in length of erodible
shoreline that can generate
sediment and wood
Number of linear feet
Hydrologic lift/
connectivity
Will the project allow increased
inflow to the site? Will it notch,
move, remove a flood-containment
levee or flap-gate, or lower the
ground surface (e.g., through fill
removal or other excavation) so that
it floods more readily?
If yes, specify number
of acres of reconnected
floodplain or inundated
area
AGENDA ITEM #6. e)
PAGE
E-4 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Lower Green Evaluation Criteria
Evaluation
Criteria
Criteria
Weight
(sums to
100%)
Indicator
of potential
benefits Instructions How to assign values
Evaluation Level 1
Project size
Assumes
most other benefits are
positively
correlated
with size
25 Project area Count only areas that will be part
of habitat project--not entire parcel
Specify number of acres
Shoreline
length
Measure length of existing
shoreline, whether armored, or
unarmored.
Linear feet (in 100’s)
Location Is the site in a high value location?Within 1 km of a completed or
underway restoration site (1 pt)
Associated with a stream mouth/wetland (2 pts)
In spawning areas (closeness to
rearing habitat need for fry) (1 pt)
Used as a creek modifier, to
reduce scores of coho projects
Likelihood of chinook use (range from 1.0 to 0.1)
Evaluation Level 2
Expected
post-
project
benefits
(optional)
75
Immediate
habitat lift
(mostly
substitution
and creation)
BANK TREATMENTS: Estimate
the change in the length of
enhancement (100’s of feet)
Resloping/benching (*0.4 pt)Linear feet (in 100’s)
Wood for habitat (this does NOT
include soft armoring) (*0.2 pt)Linear feet (in 100’s)
Revegetation length Linear feet (in 100’s)
Revegetation width 165 ft wide (0.5 pt)
100-165 ft wide (0.4 pt)
50-100 ft wide (0.3 pt)
<50 ft wide (0.1 pt)
REARING HABITAT CREATION:
Estimate the excavated area that
will be wetted during Jan-June (at
least)
Backwater acres
Side channel acres
Hydrologic lift/
connectivity
Will the project increase flooding of the site? E.g. Will it notch, move,
remove a flood-containment levee or flap-gate, or lower the ground
surface (e.g., through fill removal or other excavation) so that it floods
more readily?
If yes, specify acres of reconnected tributary
If yes, specify acres of reconnected floodplain
Change in length of erodible shoreline that can generate
sediment and wood
Linear feet (in 100’s)
Used as a creek modifier, to re-duce scores of coho projects Likelihood of chinook use (range from 1.0 to 0.1 pt)
AGENDA ITEM #6. e)
PAGE
E-5 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
ROGER TABOR
Middle Green Evaluation Criteria
Evaluation
Criteria
Criteria
Weight
(sums
to
100%)
Indicator
of potential
benefits Instructions How to assign values
Evaluation Level 1
Project size
assumes
most other
benefits are
positively
correlated
with size
25 Project area Count only areas that will be
part of habitat project--not
entire parcel
Specify number of acres
Shoreline
length Measure length of existing
shoreline, whether armored,
or unarmored. (creek only
count one bank)
Linear feet (in 100’s)
Location Is the site in a high value
location?
Associated with a stream mouth/
wetland (1 pt)
Within the severe CMHZ (1 pt)
Adjacent to an existing restoration
project (1 pt)
Priority in the revegetation strategy
(1 pt)
Used as a creek modifier,
to reduce scores of coho
projects
Likelihood of chinook use (range
from 1.0 to 0.1 pt)
Value guidance--all mainstem
areas, lower five miles of Soos or
Newaukum (1 pt)
River floodplain portion of other
creek (0.5 pt)
Mostly headwater/coho areas
(0.1 pt)
(Continued on next page)
AGENDA ITEM #6. e)
PAGE
E-6 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Evaluation
Criteria
Criteria Weight
(sums
to
100%)
Indicator
of potential
benefits Instructions How to assign values
Evaluation Level 2
Expected post-project benefits (optional)
75 Immediate habitat lift (edge improvements, new rearing habitat)
BANK TREATMENTS: Estimate the change in the length of enhancement (100’s of feet)
Creek remeander (*1 pt)Linear feet (in 100’s)
Resloping/benching (*0.4 pt)Linear feet (in 100’s)
Wood for habitat (*0.2 pt)Linear feet (in 100’s)
Revegetation length Linear feet (in 100’s)
Revegetation width 165 ft wide (0.5 pt)
100-16 5ft wide (0.4 pt)
50-100 ft wide (0.3 pt)
<50 ft wide (0.1 pt)
REARING HABITAT CREATION or CONNECTION: Estimate the area that will be wetted more frequently during Jan-June (at least)
Number of acres
Length of shoreline armoring or levee that is being removed or set back farther from the river.
Linear feet (in 100’s)
Creek only Area of increased floodplain connectivity or quality
Number of acres
Long-term habitat lift (process-restoration)
Measure total project area within likely new boundary protections; assume that roads are generally permanent boundaries (with rare exceptions) - include FPP areas as being within possible boundary protections.
Number of acres
Location Used as a creek modifier, to reduce scores of coho projects
Likelihood of chinook use (range from 1.0-0.1 pt)
Value guidance--all mainstem areas, lower five miles of Soos or Newaukum (1 pt).
River floodplain portion of other creek (0.5 pt)
Mostly headwater/coho areas (0.1 pt)
Middle Green Evaluation Criteria, continued
AGENDA ITEM #6. e)
Green-Duwamish and Central Puget Sound Watershed Salmon Habitat Plan • November 2020 PAGE
F-1
ROGER TABOR
Appendix F:
Monitoring and Adaptive Management Plan
AGENDA ITEM #6. e)
WRIA 9 Monitoring and
Adaptive Management Plan
October 2020
Alternate Formats Available
206-477-4800 TTY Relay: 711
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
WRIA 9 Monitoring and Adaptive
Management Plan
Prepared for:
The WRIA 9 Watershed Ecosystem Forum
Submitted by:
Kollin Higgins, on behalf of the WRIA 9 Implementation Technical Committee
King County Water and Land Resources Division
Department of Natural Resources and Parks
Funded in part by:
The WRIA 9 Watershed Ecosystem Forum
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
WRIA 9 Monitoring and Adaptive Management Plan
King County Science and Technical Support Section i October 2020
Acknowledgements The authors would like to thank all the WRIA 9 Implementation Technical Committee members that contributed to this report over the last seven years. It may not have been timely, but it has finally been completed.
Citation King County. 2020. WRIA 9 Monitoring and Adaptive Management Plan. Prepared by Kollin Higgins, Chris Gregersen, Matt Goehring, and Elissa Ostergaard, Water and Land Resources Division, Seattle, Washington, for the WRIA 9 Watershed Ecosystem Forum.
AGENDA ITEM #6. e)
WRIA 9 Monitoring and Adaptive Management Plan
King County Science and Technical Support Section ii October 2020
Table of Contents Executive Summary............................................................................................................................................. iv 1.0 Background and Purpose .................................................................................................................... 1 2.0 Planning Process and Structure .......................................................................................................... 2 2.1 How This Plan Was Developed ..................................................................................................... 2 2.2 Types of Monitoring .......................................................................................................................... 4 3.0 Implementation Monitoring ............................................................................................................... 6 3.1 Plan Implementation ........................................................................................................................ 6 3.2 Project Implementation ................................................................................................................... 7 4.0 Effectiveness Monitoring ...................................................................................................................10 4.1 Project Monitoring...........................................................................................................................10 4.1.1 Routine Monitoring ...................................................................................................................11 4.1.2 Project Monitoring-Enhanced ...............................................................................................20 4.2 Cumulative Habitat Conditions ...................................................................................................23 5.0 Validation Monitoring .........................................................................................................................28 5.1 Population Status-Viable Salmonid Population Parameters ...........................................28 5.2 Ongoing Research and Data Gaps ..............................................................................................30 6.0 Recommendations ................................................................................................................................32 7.0 References ...............................................................................................................................................34
Figures Figure 1. Three primary types of monitoring are used to evaluate management strategies and adapt them as necessary ............................................................................. 5 Figure 2. WRIA 9 Adapative Management Decision Framwork. .................................................. 7
Tables
Updated habitat plan targets for 2028. ............................................................................... 3
Routine physical and biological monitoring recommendations by project type and subtype. .......................................................................................................................13
AGENDA ITEM #6. e)
WRIA 9 Monitoring and Adaptive Management Plan
King County Science and Technical Support Section iii October 2020
Enhanced project effectiveness monitoring priorities by project type and subwatershed. Higher scores are a higher priority for enhanced monitoring. ...................................................................................................................................22
Summary information on what, how, and when cumulative habitat conditions should be tracked. ...............................................................................................25
Viable Salmonid Population parameters, and who and how they are being measured in WRIA 9. ................................................................................................................29
AGENDA ITEM #6. e)
WRIA 9 Monitoring and Adaptive Management Plan
King County Science and Technical Support Section iv October 2020
EXECUTIVE SUMMARY The WRIA 9 Monitoring and Adaptive Management Plan (MAMP) incorporates years of effort to create a monitoring plan that is both robust but simple to implement. The first version of this plan was drafted in 2013 by the WRIA 9 Implementation Technical Committee (ITC) but was purposefully left as a draft to allow time for regional efforts to create standardized monitoring processes. As part of the larger WRIA 9 Salmon Habitat Plan update, it was decided to finalize this MAMP, though not all of the regional monitoring efforts have been completed at this time. This plan focuses on tracking and evaluating large capital habitat restoration projects and does not address smaller routine habitat projects like basic revegetation, or noncapital projects like stewardship or education. This MAMP breaks the broad topic of monitoring into three main components: implementation, effectiveness, and validation. The implementation monitoring section is focused on tracking large capital project implementation to see if the habitat plan goals and targets are being reached and if not, why and what can be changed to meet those targets. The effectiveness section of the MAMP is broken into two broad categories, including project effectiveness and cumulative habitat conditions which is also known as status and trends monitoring. Additionally, the project effectiveness section is broken into two components: routine and enhanced project monitoring. Routine project effectiveness monitoring focuses on if the project is performing as we expected it to. It is expected that all project sponsors of large restoration projects receiving money through the WRIA will undertake the routine monitoring called for in the MAMP. The questions and metrics for routine monitoring focused on relatively simple and inexpensive physical metrics. The enhanced monitoring components address harder and more expensive to answer questions around if and how Chinook use restoration project sites. This type of monitoring should only be done on a limited number of projects and it is expected that the WRIA would use its funding resources to help implement this type of monitoring. The second half of effectiveness monitoring, cumulative habitat conditions, looks beyond what habitat has been created and attempts to evaluate larger habitat trends throughout the five subwatersheds. This is where we see if the sum of all the activities are having a net gain or lift in habitat conditions, or if the improvements made in the name of salmon recovery are being offset by ongoing development or redevelopment. These cumulative habitat condition metrics are centered around the updated Salmon Habitat Plan recovery strategies and build off of the 2012 WRIA 9 Status and Trends report. Some of the data is being collected by other entities, but some of it will need to be collected and or funded by the WRIA. It is recommended that the WRIA spread out the effort to undertake a status and trends report by collecting and analyzing some metrics every year while reporting the findings once every five years. Validation monitoring is composed of tracking Chinook Viable Salmonid Population parameters as well as validating assumptions or data and knowledge gaps in the Salmon Habitat Plan. The majority of the data used to evaluate Chinook salmon population metrics
AGENDA ITEM #6. e)
WRIA 9 Monitoring and Adaptive Management Plan
King County Science and Technical Support Section v October 2020
is collected by the co-managers. One of the most important parts of evaluating the Chinook salmon numbers is the juvenile outmigrant trap, which has been in place for over twenty years. The WRIA has been contributing roughly a third of the funding for the trap, and given the data’s importance to measuring salmon recovery efforts, the ITC recommended that the WRIA should continue to do so until a broader Puget Sound funding source for smolt traps can be secured. Additionally, the WRIA has used this category of monitoring to undertake applied research studies that will help validate assumptions that went into forming the Salmon Habitat Plan. These studies have greatly improved our knowledge of how Chinook use the system and have helped to elevate and prioritize additional actions for the WRIA to undertake. The ITC recommends that the WRIA continue to fund these types of studies into the future.
AGENDA ITEM #6. e)
WRIA 9 Monitoring and Adaptive Management Plan
King County Science and Technical Support Section vi October 2020
This page intentionally left blank.
AGENDA ITEM #6. e)
WRIA 9 Monitoring and Adaptive Management Plan
King County Science and Technical Support Section 1 October 2020
1.0 BACKGROUND AND PURPOSE Since the listing of Chinook salmon as a threatened species under the Endangered Species Act in 1999, local and regional entities have been working together to understand the reasons for their decline and take action to recover the species. The 2005 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat Plan, “Making our Watershed Fit for a King” (hereafter called “Salmon Habitat Plan”) calls for habitat protection, programs, and projects to benefit Chinook and other salmonids in Water Resource Inventory Area 9 (WRIA 9). Monitoring the implementation of the plan, the quality of habitat, and the status of salmonid populations is the only way to know whether we are moving towards the goal of recovery. The Salmon Habitat Plan cites monitoring as integral to implementation and identifies the need for a comprehensive monitoring strategy and sustained monitoring effort. A monitoring and adaptive management plan is also called for in the Implementation Guidance for the WRIA 9 Salmon Habitat Plan (2006). When the National Oceanic and Atmospheric Administration (NOAA) approved the Puget Sound Salmon recovery plan, it required each watershed to develop a monitoring and adaptive management plan (Final Supplement to the Shared Strategy’s Puget Sound Salmon Recovery Plan, National Marine Fisheries Service, Northwest Region, 2006). The WRIA 9 Implementation Technical Committee (ITC) began working on this Monitoring and Adaptive Management Plan (MAMP) in 2011. The work was put on hold while the Puget Sound-wide monitoring and adaptive management framework was being developed by the Puget Sound Recovery Implementation Technical Team (RITT) During that delay, the ITC researched and wrote the WRIA 9 Status and Trends Monitoring Report: 2005–2010 (February 2012). The Status and Trends report documented the progress made during the first five years of implementation of the WRIA 9 Salmon Habitat Plan, identified key monitoring gaps, and formed the foundation for this MAMP. A draft of the MAMP was completed in 2013 and approved by the WRIA 9 Watershed Ecosystem Forum, with the intent to finalize in a year or two once regional guidance was complete. Consistent regional guidance has taken longer than anticipated and the 2013 draft was updated in 2020 to coincide with a broader Salmon Habitat Plan update. It should be noted that this MAMP focuses on monitoring the actions in the Salmon Habitat Plan recommended to improve habitat conditions. It does not address monitoring of other limiting factors such as hatchery, harvest, or ocean conditions. It is possible that even if the Salmon Habitat Plan is fully implemented, the other limiting factors could limit our ability to reach recovery. The Monitoring and Adaptive Management Plan is intended to:
• Serve as a framework for prioritizing monitoring actions and funding by the WRIA 9 WEF;
• Provide guidance for adaptively managing implementation of the Salmon Habitat Plan;
• Promote collaboration among various entities collecting data in the basin; and
• Provide guidance for tracking net gains and losses in salmon habitat.
AGENDA ITEM #6. e)
WRIA 9 Monitoring and Adaptive Management Plan
King County Science and Technical Support Section 2 October 2020
2.0 PLANNING PROCESS AND
STRUCTURE
2.1 How This Plan Was Developed This MAMP was developed in stages over seven years and represents multiple aspects of the salmon recovery planning effort. The 2013 draft MAMP focused on evaluating progress towards 2005 habitat goals and targets (implementation monitoring), if built projects are performing as expected (project effectiveness monitoring), and Tier one conservation hypotheses (validation monitoring) that are integrated throughout the Salmon Habitat Plan. If the plan is implemented as intended, projects are successful at improving habitat and we should eventually see an improvement in Chinook salmon Viable Salmonid Population (VSP) parameters of productivity, diversity, spatial structure, and abundance. The updated 2020 MAMP includes the same topic areas, but includes recently updated Salmon Habitat Plan targets. The goals of the Salmon Habitat Plan were originally spelled out in the plan itself and in the Implementation Guidance for the Salmon Habitat Plan. The goals were updated in 2019 and are now found in Chapter 3, Table 2, and a shortened version in Table 1 below. The WRIA 9 ITC wrote a 5-year Status and Trends Report in 2012 with a focus on the highest priority (Tier 1) conservation hypotheses and interim plan goals. The Status and Trends report evaluated eleven of the eighteen conservation hypotheses and goals, for which monitoring data existed, and could be analyzed with existing or minimal resources. Gaps in ability to monitor plan progress were identified and resulted in 58 monitoring and adaptive management recommendations. Those recommendations are incorporated into this plan. This monitoring and adaptive management plan was written by WRIA 9 staff with extensive input from the ITC in 2013 and 2020. It relies heavily on previous work, including, the 2012 Status and Trends report, (WRIA9 ITC 2012), and several white papers written for the 2020 plan update (King County 2017a, 2017b, 2017c, and 2018). Once the MAMP is approved by Watershed Ecosystem Forum (WEF), the recommendations of the MAMP will be implemented annually through the WRIA processes and funding decisions.
AGENDA ITEM #6. e)
WRIA 9 Monitoring and Adaptive Management Plan
King County Science and Technical Support Section 3 October 2020
Updated Habitat Plan Targets for 2028.
Habitat
Indicator
Necessary
Future
Conditions
Current Condition Recommended 10-year
Target (by 2028)
Nearshore
Shoreline
Armor
65% of shoreline
in natural
condition
59 mi. of shoreline armored. Remove 3,000 ft. (<1%
improvement): achieve a net
reduction
Marine
Riparian
Vegetation
65% characterized
by riparian tree
cover.
21.8 mi. is dense trees;
14.8 mi. is patchy trees]
Revegetate 60 ac. and/or 3.25
mi. (~3.5% gain) of shoreline
Shoreline
Conservation
No condition
stated
9.5 mi. of adjacent upland
protected as natural lands
Protect 2 mi. of shoreline
Duwamish
Shallow Water
Habitat
173 ac. in the
transition zone
(RM 1-10)
5.8 ac. as of 2014 has been
restored
Create 40 ac. of shallow water
habitat between RM 1-10
Riparian
Forest
65% of each bank
of the river has >
165 ft. trees (586
ac. total)
69 ac. of 165 ft. buffer
contains trees.
Revegetate
170 ac. (~29% of 165 ft. buffer)
9.8 mi. of streambank
Lower Green
Off Channel
Habitat
2.8 mi. side
channels; 450 ac.
wetlands; 5039 ac.
floodplains
Not assessed in a way to
accurately state.
Side Channels
A: High flow (above
bankfull) 550 ft.
B: Low flow (below
bankfull) 3740 ft.
Floodplain Tributaries: 3080 ft.
Backwater: 75 ac.
Floodplain Wetland: 66 ac.
Other 100-yr. Floodplain: 99 ac
Riparian
Forest
75% of each bank
of the river to
>165 ft. wide (828
ac. total)
222 ac. of 165 ft. buffer has
trees.
Revegetate 250 acres/8.52 mi.
of high priority, unforested
shoreline
Large Woody
Debris
1705 pieces per
mi. (21 key
pieces)
2004: 54 pieces/mi.
2014: 48.5 pieces/mi.
Achieve 425 pieces/mi
Bank Armor No new,
decreasing
amount
2014: 42 mi. are KC
maintained facilities. The
other 14.5 mi. are a
combination of semi-
armored roads acting like
levees and natural banks
Set-back 1 mi. of levee
AGENDA ITEM #6. e)
WRIA 9 Monitoring and Adaptive Management Plan
King County Science and Technical Support Section 4 October 2020
Habitat
Indicator
Necessary
Future
Conditions
Current Condition Recommended 10-year
Target (by 2028)
Middle Green
Floodplain
Connectivity /
Lateral
Channel
Migration
Floodplain subject
to lateral channel
migration
represents 65% of
historical
conditions
2017: 1751 ac. or 55% of
historic floodplain
connected; 45 ac. restored
(including riparian) from
2005-2014
Reconnect 200 ac of floodplain
as measured by area subject to
lateral channel migration
Riparian
Forest
> 65% of Channel
Migration Zone
and up to 165 ft.
wide where
possible
2009: 50.5% of the Channel
Migration Zone forested
Revegetate 175 acres (8% of
CMZ)
Large Wood
Debris
10 jams/mi. 2015: 3.8 jams/ mi. Achieve 5 jams/mi.
Bank Armor No new,
decreasing
amount
2004=25%
2009=24%
Set back 1 mi. of
revetment/levee
Middle Green Tributaries
Soos Creek
Riparian
Forest
65% revegetated
to 165 ft.
2015: 150ft. riparian buffer is
4200 ac., 1626 ac. is
forested
Revegetate 700 ac. or 11.7 mi.
streambank
Newaukum
Creek Riparian
Forest
65% revegetated
to 165 ft.
2015: the 150 ft. riparian
area is 4088 acres, 960
acres of which is forested
Revegetate 900 ac. or 14.0 mi.
streambank
Upper Green
Fish Passage Fish passage
provided at
Howard Hanson
Upstream passage facility
complete. Downstream
passage not complete
Provide downstream passage
at HHD
Bank Armor No new,
decreasing
t
2009=15% armored Remove/set back 0.5 miles
2.2 Types of Monitoring Monitoring for this plan was broken into three types. Terminology may differ from other regional efforts to create salmon recovery adaptive management plans, but they have been agreed to by WRIA 9 for the purposes of this plan. The three are:
Implementation: Did we implement the plan’s projects, programs and policies as intended?
Effectiveness: Did the projects perform as expected and have all the activities combined improved habitat conditions as expected?
Validation: What overall effects have habitat plan implementation actions had on the Green River Chinook salmon VSP parameters, and are the assumptions within the plan accurate?
AGENDA ITEM #6. e)
WRIA 9 Monitoring and Adaptive Management Plan
King County Science and Technical Support Section 5 October 2020
We can adapt management strategies by learning the answers to the above questions and adjusting plan priorities and activities as needed. This plan is organized by the type of monitoring, as described above, and as shown in Figure 1. For each type of monitoring (implementation, effectiveness, and validation), we identify what is being done, gaps, and propose activities or guidelines.
Figure 1. Three primary types of monitoring are used to evaluate management strategies and
adapt them as necessary This plan also prioritizes monitoring activities in order to develop a long-term funding strategy for WRIA 9 salmon recovery funds. The routine project effectiveness monitoring guidelines are intended to be implemented by project sponsors under existing funding of restoration projects, a combination of grant and jurisdiction funds. It is strongly recommended that these guidelines are followed for consistent and scientifically defensible measurement of the effectiveness of projects, both at meeting goals for the particular site, and overall habitat and VSP goals. The funding and projects components of implementation monitoring will be undertaken by both WRIA staff and project sponsors. Program implementation will need to be monitored periodically by WRIA staff.
AGENDA ITEM #6. e)
WRIA 9 Monitoring and Adaptive Management Plan
King County Science and Technical Support Section 6 October 2020
3.0 IMPLEMENTATION MONITORING
3.1 Plan Implementation Implementation of the 2005 Salmon Habitat Plan should influence Chinook salmon productivity and recovery in the watershed. While there are strategies in the Salmon Habitat Plan that describe programs and policies, and projects, this document does not directly address policies and programs. This section focuses on if the projects we are implementing are meeting habitat plan targets as described in Table 1. Knowing the status of the projects called for in the Salmon Habitat Plan, as well as the quantity and quality of habitat, will be important as the WRIA 9 stakeholders evaluate the effectiveness of recovery actions to date and update the Chinook recovery plan. To adaptively manage plan implementation, the ITC will review the status of the goals in Table 1. The ITC will use the adaptive management decision framework (see Figure 2) to evaluate and prepare recommendations to the WRIA 9 Forum of Governments (Forum) of Salmon Habitat Plan projects, polices, or programs that need to be initiated or accelerated in order to get the implementation timeline back on schedule. The framework includes three primary steps or questions. Question one asks if the target been achieved or on target to be achieved? If no, question two asks does the strategic assessment or new research change our understanding of the current context? Question three asks if the metric we are using to evaluate progress is the correct metric or if we need to update the metric. These questions are evaluated against a set of factors limiting implementation, which would also provide guidance for potential changes in course to address the lack of progress. These limiting factors include habitat losses offset gains, insufficient funding, lack of opportunities or landowner willingness, insufficient funding or capacity, and information gaps. The type of limiting factor helps set context around the recommended adaptive management action. The Forum will consider the ITC recommendations and make commitments of staff or other resources to take action to remedy obstacles to implementation.
AGENDA ITEM #6. e)
WRIA 9 Monitoring and Adaptive Management Plan
King County Science and Technical Support Section 7 October 2020
Figure 2. WRIA 9 Adapative Management Decision Framwork.
3.2 Project Implementation Detailed information about how projects are constructed, including the amount and type of each habitat created and the cost is needed in order to assess overall plan implementation. Previous efforts to describe progress of plan implementation were very challenging because there were no consistent expectations or regular reporting requirements. As part of the 2020 Salmon Plan update there will be a standard project status reporting mechanism and schedule so that information is reported to the WRIA in a timely manner to better track implementation of plan goals. Within three months of project completion, project sponsors will be required to report on final project outcomes and future stewardship activities by filling in the Project Completion Close Out form, which will automatically get submitted to the WRIA 9 Habitat Project Coordinator. This data will be entered into the Habitat Work Schedule at http://hws.ekosystem.us/ to ensure the data is available to the public.
AGENDA ITEM #6. e)
WRIA 9 Monitoring and Adaptive Management Plan
King County Science and Technical Support Section 8 October 2020
Adaptive Management Process for Project Implementation An important component of project implementation is the comparison of the final design plans to the as-built completion plans created immediately after construction is complete. As-builts are project design drawings of the restoration project that are created shortly after construction and describe what was actually constructed versus what was on the design plans. An as-built can be created by modifying the existing design plans based on changes known to have occurred during construction or by undertaking a new site survey, which would be more costly, but is recommended if there has been a large amount of earth moving. The importance of having an as-built cannot be overstated. Without an as-built it is generally not possible to reliably track the physical changes occurring at any site. As-builts should be created as soon as possible, preferably before the upcoming flood season so the as-built conditions are not conflated with changes created by flood flows. Projects that get SRFB money for construction are now required to provide an as-built (see Appendix D-4: Construction Deliverables, RCO Manual 18, Salmon Recovery Grants). As-built plans allow comparison to the project as approved by the ITC, WEF, and funding agencies, as well as documentation of the amount of different habitats that were built as part of the project in order to accurately track our progress towards the implementation goals and targets. The following are adaptive management roles and actions for project sponsors, the ITC, and the Forum.
Project Sponsor Action: Submit an as-built drawing to WRIA 9 Habitat Projects Coordinator. Compare final design to as-built drawings/designs. If the as-built does not represent the permitted final design, project sponsor should describe why in the Project Completion Close Out Form submitted post completion. The Habitat Project Coordinator will evaluate if the extent of changes needs to be reviewed by the ITC or the Project subgroup.
ITC actions: Review project sponsor analysis and make recommendations as needed. The ITC will respond based on type of issue, including the potential outcomes noted below: 1) Site condition different than anticipated (e.g. more contaminated soils, buried riprap, bedrock, etc.). 2) Recommend the project sponsor increase future project budgets to undertake more site reconnaissance in design/feasibility, and/or include a higher contingency. 3) Recommend that ALL sponsors of a specific project type or within a geographic area undertake a higher level of site reconnaissance than normal in design/feasibility.
(implicitly assumes that ITC will support higher project costs of this nature) 4) Contractor error
o Request the project sponsor work with contractor to have the contractor take corrective actions to address problems found.
o Recommend project sponsor increase future project budgets to include more construction oversight. 5) Other-ITC respond as necessary.
AGENDA ITEM #6. e)
WRIA 9 Monitoring and Adaptive Management Plan
King County Science and Technical Support Section 9 October 2020
Forum actions: The Forum will consider ITC recommendations and may assign or procure other resources to advance efforts to expand the current project or propose another project concept to enhance or address omitted project elements.
AGENDA ITEM #6. e)
WRIA 9 Monitoring and Adaptive Management Plan
King County Science and Technical Support Section 10 October 2020
4.0 EFFECTIVENESS MONITORING 1
4.1 Project Monitoring Monitoring to determine project effectiveness has been somewhat inconsistent, and frequently includes only required permit conditions. Typically, most local and state permits only require monitoring plant survival over three to five years after the project has been implemented. For most WRIA 9 projects, this level of monitoring does not provide enough information to understand if the project has successfully created and maintained the type of habitat anticipated from the project. Additionally, much of the other monitoring in the basin has similarly been started after the restoration was done, without proper controls or reference sites making conclusions from the monitoring less reliable. Monitoring plans should specifically address the goals and objectives of the particular project. The ITC encourages project proponents to start creating monitoring plans when they reach the 30% design phase. This would allow for pre-project monitoring to begin prior to implementing the project, if appropriate. Additionally, the ITC recommends when possible using a Before-After Control-Impact (BACI) monitoring design, as it provides a solid scientific basis for the results. The ITC can provide assistance in developing aspects of the monitoring plan if the sponsor needs assistance The project effectiveness recommendations in the MAMP build on the Implementation Guidance Report (WRIA 9 Adaptive Management and Monitoring Workgroup and Anchor Environmental LLC 2006). That report provided general recommendations for the types of projects or issues that sponsors should monitor, but it did not provide detailed recommendations. This created variability in how project sponsors have monitored restoration projects, which has led to challenges in how to summarize effectiveness. The new recommendations are more detailed with the intent of promoting uniformity in how project success is described and reported back to the WRIA and other funding partners. For this report, project effectiveness was broken into two types: routine and enhanced. It is expected that routine monitoring will be done on all projects as existing sponsor funds allow and should satisfy permit conditions as well as provide basic information about whether the project continues to function as intended. Routine monitoring includes very little biological monitoring, but rather relies mostly on physical habitat measurements to document performance and changes. For instance, routine monitoring of riparian vegetation should include evaluating the percentage of aerial cover that is occupied by non-native invasive plant species. Enhanced project effectiveness monitoring is more intensive and will be focused on projects with less certainty of success and higher expense. These are discussed in more detail in the next section below. 1 This section pertains to high priority capital habitat restoration projects that the WRIA contributes funding to and does not include education, stewardship or revegetation only projects.
AGENDA ITEM #6. e)
WRIA 9 Monitoring and Adaptive Management Plan
King County Science and Technical Support Section 11 October 2020
As of 2020, each restoration funding source treats monitoring requirements differently. The SRFB recently created a pathway where the Lead Entity could use up to 10% of its annual SRFB allocation for monitoring projects, though using these funds for monitoring is not generally encouraged. Instead, the SRFB funds its own monitoring program that monitors a subset of projects throughout Washington. There are generally several WRIA 9 projects being monitored by the SRFB each year. While the WRIA 9 recommended indicators and metrics do not perfectly match the SRFB’s metrics, project sponsors should explore ways to collaborate with SRFB monitoring efforts when possible. The United States Army Corps of Engineers (ACOE) through the Green River Ecosystem Restoration Projects (ERP) not only requires monitoring of their projects, they also provide up to a 65% match to undertake the monitoring. Currently, the ACOE roughly allocates $20,000 a year for three years of post-construction monitoring. However, this amount could be increased to closer to $100,000 a year if the local sponsor had the ability to provide the 35% match. The ability to leverage monitoring funds on ERP projects would likely make them ideal for enhanced monitoring (discussed below). Projects that receive funding through the Estuary and Salmon Restoration Program (ESRP) are able to fund monitoring of projects through the program. Furthermore, the ESRP is currently one of the few grant programs that funds “learning projects.” This program could be a source of funding for enhanced monitoring efforts in the estuary and marine shoreline as well as for exploring research priorities that are included in the Validation Monitoring section of this report. Additionally, the WRIA directs some of its grant funding (e.g. Cooperative Watershed Management) towards monitoring and research needs.
4.1.1 Routine Monitoring Routine monitoring helps determine if the project is performing the way it was intended. For example, if a backwater habitat is built to function as rearing habitat, the recommendations suggest monitoring the number of days the habitat is inundated during the Chinook juvenile outmigration (January through June) as well as if the amount of physical habitat available changes over time. The recommended indicators and metrics were specifically chosen to be generally affordable and straightforward to implement. The primary indicators and metrics are typically focused on physical attributes of the site versus biological. By giving simple and inexpensive recommendations, it is believed that project sponsors will be able to undertake the recommended monitoring. If project sponsors do not undertake the recommended monitoring voluntarily, it may be necessary to create minimum monitoring requirements as a condition for receiving funding through the WRIA. It is expected that all projects will establish photo points and provide an as-built drawing. Photo-points are an extremely useful way of visually communicating the change that is (or isn’t) occurring at a site. Without an as-built drawing it is generally not possible to reliably track the physical changes occurring at any site. Projects that get SRFB money for construction are now required to provide an as-built.
AGENDA ITEM #6. e)
WRIA 9 Monitoring and Adaptive Management Plan
King County Science and Technical Support Section 12 October 2020
The monitoring recommendations for a particular project are in Table 2 below and broken into categories of project type and subtype, project objectives, and physical and biological monitoring questions with indicators and metrics for each The project type typically follows the nomenclature used by the SRFB monitoring program, while the project subtype more closely follows the terminology from the WRIA 9 Plan. The next column includes the primary project objective or objectives for that subtype. Defining the specific project objective helps clarify what the physical and biological questions should be. Generally, each project subtype has one primary objective. When there is more than one potential objective, each objective was noted by a bulleted letter that corresponds to bullets in following columns. The next two columns include the physical and biological questions along with the metrics and indicator that should be used to evaluate the specific question. In each of the two columns the questions are broken into primary and secondary questions. It is intended that the project sponsor’s monitoring plan should at a minimum answer the primary questions. While the secondary questions would help refine how project success is described and reported, including is entirely up to the discretion of the project sponsor. Where the overall project includes more than one project subtype (e.g., planting combined with a levee setback), the project sponsor would answer the primary monitoring questions associated with each project subtype.
AGENDA ITEM #6. e)
WRIA 9 Monitoring and Adaptive Management Plan
King County Science and Technical Support Section 13 October 2020
Routine physical and biological monitoring recommendations by project type and subtype.
Project Type Project
Subtype
Project
Objective
Physical monitoring questions and Indicator/metric
(Primary bolded, Secondary regular font)
Biological monitoring questions
and Indicator/metric (Primary
bolded, Secondary regular font)
Planting Revegetation of
riparian area,
including
conifer under-
planting
Establish
vegetation (to
provide multiple
benefits i.e.
shade, leaf litter
input, food, bank
stability)
N/A 1) How much aerial coverage
was created by end of year 5?
>50% aerial cover of native
species after year 5
2) What is the area of non-
native, invasive plant coverage
after 5 years compared to year
0?
<20% nonnative vegetation at end
of year 3; <10% nonnative
vegetative cover after year 5
If on a creek (not on Green River),
has the project affected instream
temperature during summer
months?
Compare temperature upstream,
within, and downstream of project
area in years 0, 3, 5, 10.
If conifer underplanting, what is the
aerial cover after 5 years? >50%
increase in aerial canopy cover of
conifers after year 10.
AGENDA ITEM #6. e)
WRIA 9 Monitoring and Adaptive Management Plan
King County Science and Technical Support Section 14 October 2020
Project Type Project
Subtype
Project
Objective
Physical monitoring questions and Indicator/metric
(Primary bolded, Secondary regular font)
Biological monitoring questions
and Indicator/metric (Primary
bolded, Secondary regular font)
Invasive control To control non–
native, invasive
plant species
and allow for
native plants to
naturally recruit
or grow in their
place. (This
assumes no
replanting is
done at the
same time and
that eradication
is not possible)
N/A What is the area of non-native,
invasive plant coverage after 5
years compared to year 0?
<10% nonnative vegetative cover
after year 3
Instream
habitat
enhancement
LWD
installation
a) Bank
protection
b) Habitat/pool
creation,
(stream vs.
river)
c) Recruit LWD
to jams
d) Floodplain
interaction-
forcing channel
to migrate, split,
aggrade, etc.
a) Has bank been protected from
erosion/channel migration?
% adverse eroding bank year 0 versus year 3/after
high flows
b) Have habitat conditions improved within
project reach?
Stream-change in mean residual pool depth
between year 0 and year 3?
River- Compare amount (ft2) of edge habitat
available before and in years 1, 3, and 5. Compare
via GPS and velocity meter, mapping edge habitat
as 1.5 ft/sec or less, using a modified Beechie et al
2005 for habitat types-bank edge (unarmored, bio-
revetment, armored, bar edge, side channel edge,
and backwater
b) Is the wood structure providing cover?
% of wood structure in contact with flow of 1200 cfs
in years 0 versus year 3.
b) Did fish use respond to LWD
presence?
If evaluating for only 1 year: Higher
relative abundance of target
species in LWD/treatment habitat
than in control habitat
representative of pre-project
conditions
If using BACI: Increased difference
between abundance of target
species in LWD/treatment versus
control habitat after project than
between pre-project
LWD/treatment location versus
control habitat before project.
AGENDA ITEM #6. e)
WRIA 9 Monitoring and Adaptive Management Plan
King County Science and Technical Support Section 15 October 2020
Project Type Project
Subtype
Project
Objective
Physical monitoring questions and Indicator/metric
(Primary bolded, Secondary regular font)
Biological monitoring questions
and Indicator/metric (Primary
bolded, Secondary regular font)
c) Has the number and/or size of jams increased
over time?
Compare # LWD pieces in jams and ft2 in years 0, 5,
and 10
d) Is channel more dynamic?
Compare amount (ft2) of edge habitat available
before and in years 1, 3, and 5. Compare via GPS
and velocity meter, mapping edge habitat as 1.5
ft/sec or less, using a modified Beechie et al 2005
for habitat types-bank edge (unarmored, bio-
revetment, armored, bar edge, side channel edge,
and backwater
Instream
habitat
enhancement
Spawning
Gravel
Supplementa-
tion
Enhance/
increase
spawning
habitat or quality
where
modifications
have limited
natural gravel
recruitment.
Has gravel remained in or moved to the places
intended for the time expected?
1) Compare substrate size distribution (longitudinal
trends in d16, d50 and d84) between years -1, 0, 3,
5
Is placed gravel as stable as reference reach?
Compare scour depth of placed gravel with
reference reach of naturally recruited gravels under
the same flow conditions.
Has gravel remained useable for spawning over
time or has it become embedded with fines or
moved into other reaches?
1) %embeddedness of spawning gravel years 0, 3,
5, 10
Has redd spatial distribution
changed with supplementation?
Compare redd distribution by river
mile, in years 0, 3, 5 and 10.
NOTE: redd presence is not
recommended as a metric
because it is not a guarantee of
redd success, and documenting
redd success is risky to eggs
and fry.
Fish passage Fish passage Provide fish
access to
habitat that they
currently do not
Do target species and/or life history phase have
access to new habitat?
WDFW Fish passage and design criteria are met
years 0, 3, and 5
NOTE: purposefully avoided
using biological presence as a
metric as absence of fish does
not prove lack of access. AGENDA ITEM #6. e)
WRIA 9 Monitoring and Adaptive Management Plan
King County Science and Technical Support Section 16 October 2020
Project Type Project
Subtype
Project
Objective
Physical monitoring questions and Indicator/metric
(Primary bolded, Secondary regular font)
Biological monitoring questions
and Indicator/metric (Primary
bolded, Secondary regular font)
by removing
artificial barriers.
Shallow
water/Edge
Habitat
Pocket
estuaries
AND
Duwamish
Transition zone
vegetated
marsh and
mudflat (marsh
= +5.5 to +12
mean lower low
water (MLLW),
mudflat (-4 to
+12 MLLW)
habitat creation
Create or
improve high
quality rearing
habitat in saline
or partially
saline habitats.
1) Has the amount of intertidal habitat remained
stable?
Compare representative elevation profiles from as-
built to years 3 and 5. Quantify ft2 of intertidal habitat
available in 2 ft. gradations from -4 to +12 MLLW.
2) Has substrate type remained as intended?
Compare as-built (year 0) to year 3, and 5
conditions
1) How much aerial coverage of
vegetation was created by end
of year 3 and 5 (minus mudflat
areas)?
> 50% aerial cover by end of year
3, >80% aerial cover by end of
year 5
2) Are juvenile Chinook using the
habitat type?
Number and condition factor of
juvenile fish compared to a
reference site during the same
season, or to the project site
before the project was built
Shallow
water/Edge
Habitat
Backwater
habitat creation
AND
Green River
side channel
creation
Create high
quality, but
mostly static,
rearing habitat
by reconfiguring
the stream
channel to be
more
hydraulically
complex.
1) Is there access to the habitat when the target
life stage is nearby?
Use elevation of inlet/outlet compared to water
levels in late winter/early spring, when juvenile
Chinook need it or use time lapse cameras to
describe number of “inundation” days, duration,
frequency, and timing of connectivity
2) Has there been deposition or erosion of
habitat? Has substrate type remained as
intended?
Compare as-built (year 0) to year 3 conditions
1) Are juvenile Chinook
preferentially using the habitat
type?
If evaluating for only 1 year: Higher
relative abundance of target
species in treatment habitats than
in control habitats representative of
pre-project conditions
If using BACI: Increase in
difference between abundance of
target species in treatment versus
control habitat after project than
between pre-project treatment
location versus control habitat
before project. AGENDA ITEM #6. e)
WRIA 9 Monitoring and Adaptive Management Plan
King County Science and Technical Support Section 17 October 2020
Project Type Project
Subtype
Project
Objective
Physical monitoring questions and Indicator/metric
(Primary bolded, Secondary regular font)
Biological monitoring questions
and Indicator/metric (Primary
bolded, Secondary regular font)
Shallow
water/Edge
Habitat
Creek channel
restoration or
relocation
Reconfigure or
restore the
stream channel
to be more
hydraulically
complex and
have a more
natural channel
configuration
1) Has habitat quality and quantity increased
post project and been maintained over time?
Between years 0, 3, and 5, changes in: mean
residual pool depth, increased diversity in habitat
types (e.g. pools, riffles), increased wetted area at a
set flow, and increased sinuosity.
2) Has the project affected instream temperature?
Compare temperature upstream, within, and
downstream of project area in years 0, 3, 5, 10.
1) Are juvenile Chinook
preferentially using the habitat
type?
If evaluating for only 1 year: Higher
relative abundance of target
species in treatment habitats than
in control habitats representative of
pre-project conditions
If using BACI: Increase in
difference between abundance of
target species in treatment versus
control habitat after project than
between pre-project treatment
location versus control habitat
before project.
Shallow
water/Edge
Habitat
Levee or
revetment
Setback or
removal
Allow the river to
migrate or gain
access to a
specific area of
floodplain and
create high
quality edge/off
channel habitat.
1) Has the length of unarmored bank increased?
Compare length of unarmored bank between years
0, 3, 5 and 10.
2) How much slow water habitat is available at
1200 cfs? (This flow level was chosen from
Anderson and Topping 2018)
Compare amount( ft2) of edge habitat available
before and in years 1, 3, and 5. Compare via GPS
and velocity meter, mapping edge habitat as 1.5
ft/sec or less, using a modified Beechie et al 2005
for habitat types-bank edge (unarmored, bio-
revetment, armored, bar edge, side channel edge,
and backwater
3) How much slow water habitat is available at the
50th, and 75th percentile flow during the rearing
1) Are juvenile Chinook
preferentially using the treated
area?
If evaluating for only 1 year: Higher
relative abundance of target
species in treatment habitats than
in control habitats representative of
pre-project conditions
If using BACI: Increase in
difference between abundance of
target species in treatment versus
control habitat after project than
between pre-project treatment
location versus control habitat
before project. AGENDA ITEM #6. e)
WRIA 9 Monitoring and Adaptive Management Plan
King County Science and Technical Support Section 18 October 2020
Project Type Project
Subtype
Project
Objective
Physical monitoring questions and Indicator/metric
(Primary bolded, Secondary regular font)
Biological monitoring questions
and Indicator/metric (Primary
bolded, Secondary regular font)
period (adds higher rearing flows than #2 if sponsor
is able to undertake)
Compare amount( ft2) of edge habitat available
before and in years 1, 3, and 5. Compare via GPS
and velocity meter, mapping edge habitat as 1.5
ft/sec or less, using a modified Beechie et al 2005
for habitat types-bank edge (unarmored, bio-
revetment, armored, bar edge, side channel edge,
and backwater
4) Has the rate of channel migration increased?
Quantify migration rates before and after project
using either aerial photos or GPS in field to measure
bank locations and rate of migration.
5) Has the number and/or size of jams increased
over time?
Compare # LWD pieces in jams and ft2 year 0 to
years 3, 5 and 10
6) How much high flow refuge habitat is available at
8800 cfs*
Compare amount of habitat available before and
after project via topographic surveys
Shallow
water/Edge
Habitat
Armor removal-
marine, at
feeder bluff
Restore
sediment
delivery to
beach and
downdrift
habitats.
Has sediment delivery increased?
% of treated shoreline with eroding banks in year 3,
5, 10
Has the amount of forage fish spawning
gravel/habitat increased?
Compare area/amount of habitat in the same
season for years 0, 3, 5 and 10
Is sediment transport moving material downdrift?
AGENDA ITEM #6. e)
WRIA 9 Monitoring and Adaptive Management Plan
King County Science and Technical Support Section 19 October 2020
Project Type Project
Subtype
Project
Objective
Physical monitoring questions and Indicator/metric
(Primary bolded, Secondary regular font)
Biological monitoring questions
and Indicator/metric (Primary
bolded, Secondary regular font)
Beach profiles for site and downdrift year 0 and year
3, and 5.
Shallow
water/Edge
Habitat
Armor removal
marine, non-
feeder bluff
Enhance habitat
quality along the
shoreline
margins
Have basic beach habitat conditions improved?
1) Compare amount of detritus (beach wrack, drift
logs, etc.) between year 0 to year 3.
Has the amount of forage fish spawning
gravel/habitat increased?
Compare area/amount of habitat in the same
season for years 0, 3, 5 and 10
2) Has beach sediment remained stable?
Beach cross section profiles at same time of year for
year 0, 3, 5 and 10.
Shallow
water/Edge
Habitat
Soft shoreline
armoring
Enhance habitat
quality along the
shoreline margin
while still
restricting the
ability of the
shoreline to
erode.
1) Is the treated beach eroding?
Annual beach cross section profiles at same time
each year for 3 years
2) Have basic beach habitat conditions improved?
Compare amount of detritus (beach wrack, drift logs,
etc.) between year 0 to year 3.
Did the benthic community
recovery from burial?
Has the benthic/epibenthic
community shifted to a reference
condition between year 0, 3, 5 and
10?
*The inundated area at 8,800 cfs is an indicator of flood refuge habitat. It corresponds with the approximate flow level that is effective at causing
measurable channel changes in the period after Howard Hanson Dam was installed (Konrad et al. 2011). The use of this metric assumes that
inundated area at 8,800 cfs is positively related to the quantity of slow-velocity (<45 cm sec-1) flood refuge habitat. If so, maximizing area at 8,800
cfs could potentially give juvenile Chinook more opportunities to avoid displacement and injury during floods, and survive at a higher rate.AGENDA ITEM #6. e)
WRIA 9 Monitoring and Adaptive Management Plan
King County Science and Technical Support Section 20 October 2020
Adaptive Management Process for Routine Project Effectiveness Monitoring
Routine project effectiveness monitoring evaluates whether a project is functioning the way it was intended in the 3–10 years after the project is built. The timeframe for determining effectiveness will likely be longer for projects designed to restore processes, and shorter for projects designed to be static. The following are adaptive management roles and actions for project sponsors, the ITC, and the Forum.
Project sponsor action:
• Monitor project, report on progress to ITC in years 3 and 5 for static projects, and years 5 and 10 for process-based projects.
ITC action:
• Evaluate and review project sponsor analysis—if project has shortcomings, determine if it is a result of project design or unanticipated processes that will prevent project from being sustained, with or without planned maintenance.
• Evaluate options and recommend action as needed to project sponsor and/or the Forum (e.g., maintenance, modify the existing design, or initiating a new project to achieve the objective, and funding if needed).
• Summarize recommendations for making future projects of this type more effective and sustainable/successful.
• Recommend any additional monitoring needed to further evaluate site conditions to project sponsor. If recommended for enhanced project effectiveness, propose to Forum if approval for additional funding is needed.
• If the project is successful, encourage project sponsors to present widely to various audiences (e.g., WRIAs, newsletters, conferences, web sites). Recommend similar projects and highlight the successful elements and techniques to project sponsors of projects of similar type.
Forum action:
Consider ITC recommendations for enhanced monitoring for specific projects, or recommended actions for maintenance, modifications of the design or new projects. Consider approving actions and/or funding.
4.1.2 Project Monitoring-Enhanced Enhanced monitoring is focused on understanding how fish are using a restoration project type. Unlike routine project monitoring, which asks whether a certain type of habitat was created and sustained, enhanced monitoring is meant to determine how fish use the habitat, and which restoration techniques work best. While we generally know enough about Chinook distribution and habitat preferences to design appropriate restoration projects, we do not have all the answers. For example, past studies have compared the relative abundance of juvenile Chinook between different control and treatment habitats, but have not looked at condition factors to determine if restoration projects are also contributing to higher growth rates (and thus survival) of juvenile Chinook. It should be noted that project types that are prioritized for enhanced monitoring should not be
AGENDA ITEM #6. e)
WRIA 9 Monitoring and Adaptive Management Plan
King County Science and Technical Support Section 21 October 2020
avoided, but rather, should be done and carefully evaluated. It is not suggested that this level of monitoring be done by all project sponsors. It is intended that the WRIA should at least partially financially support these types of monitoring projects. Also, as noted above, several of the project subtypes are part of the ACOE ERP program. It would be strategic to undertake enhanced monitoring efforts on ERP projects due to the ability to leverage federal dollars for monitoring. Enhanced monitoring overlaps with the research framework described below in the validation monitoring section of this report.
Prioritization Framework Unlike the routine monitoring, which was focused on creating detailed recommendations, this enhanced monitoring section focused on creating a prioritization framework to rank where the WRIA should focus funding in its annual grant round (Table 3). Project subtypes for enhanced monitoring are grouped based on the subwatershed. This was done because some project subtypes have different levels of benefit or certainty based on where within the watershed they are undertaken. For example, placement of spawning gravel within the Middle Green River subwatershed is more likely to benefit and be used by spawning Chinook than material that is placed in the Lower Green River subwatershed, which historically had little available spawning habitat. Four criteria were used to evaluate the priority of action by subbasin. Each criterion was scored from 1 to 5 and summed across the four criteria. The higher the sum of the scores, the more effort the WRIA should put in to understanding the benefits of that project type within that subwatershed.
Prioritization Criteria 1. What is the certainty of project benefit to Chinook? A score of 1 indicates high certainty, and a score of 5 indicates low certainty. Higher certainty indicates a strong scientific basis that the project type in that location will benefit Chinook. Where there is already a strong scientific basis, there is less need to verify the project’s benefits. 2. Is the project subtype process-based? A score of 1 indicates projects that restore riverine processes (e.g., levee setbacks) and a score of 5 represents structural projects that add relatively static habitat features. The plan generally favors process-based restoration techniques because there is greater certainty that the project will provide habitat benefits over the long term. Structural fixes tend to be engineered and more likely to fail in the long term. Thus, it is a higher priority to verify the benefits of those types of actions. 3. How common is the project type? How many of this type are we likely to do in the next 10 to 20 years. A score of 1 indicates we are not planning many of the project type in this subwatershed, while a score of 5 indicates that many are planned. Before we make future investments in a particular type of project, we should make sure they function as expected. 4. How expensive is the project type? Projects with relatively low costs receive a score of 1, and expensive projects score 5. If a project type will require the investment of large financial resources, effectiveness should be verified before many of these project types are undertaken.
AGENDA ITEM #6. e)
WRIA 9 Monitoring and Adaptive Management Plan
King County Science and Technical Support Section 22 October 2020
The project subtypes were scored by the ITC and are presented in Table 3. The scoring methodology creates a range of scores from the lowest possible score of 4 to a maximum score of 20. The actual summed scores ranged from 7 to 17, with 7 project subtypes scoring above 13 or greater points. The highest scoring project subtype was creating shallow water habitat in the Duwamish subwatershed. This is because while we have fairly high certainty of benefit, this project subtype is generally not processed based, expensive, and the WRIA expects to build many of them over time. When the factors are combined, the score indicates we should make certain our efforts in this location are having the benefits we want. The 21 project subtypes were binned into three tiers based on natural break points that created roughly equally populated tiers. Tier 1, or projects that warrant additional monitoring the most, included projects that scored 13 points or greater. Tier 2 included six projects that scored between 10 and 12 points. Tier 3 included seven projects that scored from 7 to 9 points.
Enhanced project effectiveness monitoring priorities by project type and
subwatershed. Higher scores are a higher priority for enhanced monitoring.
Adaptive Management for Enhanced Project Effectiveness Projects should be evaluated with a combination of BACI or reference/control sites research designs depending on site and circumstances. Adaptive management roles and actions for enhanced project effectiveness are similar to those described above for routine project effectiveness.
Subwatershed
Restoration project subtype (does not include acquisition,
stewardship, fish passage, and education projects)
Certainty of
Benefit to
Chinook (1=
High to 5=low
certainty)
Process
Based?
(1=process
to 5 =
Creation)
Relevance to future
projects (number
likely to do in the
next 10 yrs) 1-few to
5-many
Relevance to
future projects
(likely cost over
next 10 years)
Low=1, high=5 sum Tier
Duwamish *Shallow water habitat creation 3 5 4 5 17
Middle Green *Spawning Gravel Supplementation 3 4 4 4 15
Lower Green *Backwater (nonflow thru off-channel habitat) creation 3 5 2 4 14
Lower Green Spawning gravel supplementation 4 4 1 4 13
Marine Pocket Estuary Enhancement 5 3 2 3 13
Lower Green *Side channel (flow thru off-channel habitat) creation 3 5 1 4 13
Middle Green LWD installation 3 4 3 3 13
Marine Soft-shoreline armoring 2 4 3 2 11
Middle Green *Setback of levee or revetment 2 2 2 4 10
Duwamish Revegetation 2 1 4 3 10
Middle Green Revegetation 2 1 4 3 10
Tributaries *Revegetation 2 1 4 3 10
Tributaries *LWD installation 3 3 2 2 10
Lower Green *Setback or removal of levee or revetment 2 3 1 3 9
Lower Green *Revegetation 2 1 3 3 9
Marine Marine shoreline armoring removal-other shoreform 4 1 1 2 8
Marine Revegetation of riparian area 2 1 3 2 8
Middle Green Removal of shoreline armoring 2 1 2 3 8
Tributaries *Creek channel creation or relocation 3 2 1 2 8
Marine Marine shoreline armoring removal-feeder bluffs 3 1 1 2 7
Upper Basin
Enhanced level of monitoring is not suggested until fish
passage is provided N/A N/A N/A N/A N/A
1
2
3
* denotes a project subtype that could be monitored through the ACOE Ecoystem Restoration Program
AGENDA ITEM #6. e)
WRIA 9 Monitoring and Adaptive Management Plan
King County Science and Technical Support Section 23 October 2020
Project sponsor or evaluator action:
• Monitor fish use and report on progress to ITC in years 3 and 5.
ITC action:
• Evaluate and review project analysis – if project has shortcomings, determine if it is a result of the specific project design, geographic location, or if it is an issue with the project type more generally.
• Determine if additional fish use monitoring should occur beyond the initial phase and if additional information should be collected at the same time (e.g. water quality.
• Recommend any potential corrective actions as needed to project sponsor and/or the Forum (e.g., maintenance, redesign, or initiating a new project to achieve the objective, and funding if needed).
• Summarize recommendations for future projects of this project subtype to ensure we learn from additional examples of the project subtype.
• If the project is successful, make sure this information is widely shared with other project sponsors. Encourage project sponsors to present widely to various audiences (e.g., WRIAs, newsletters, conferences, web sites). Recommend similar projects and highlight the successful elements and techniques to project sponsors of projects of similar type.
Forum action:
• Consider ITC recommendations for enhanced monitoring for specific projects, or recommended actions for maintenance, redesign, or new projects. Consider approving actions and/or funding.
4.2 Cumulative Habitat Conditions The Salmon Habitat Plan calls for a variety of actions to be taken by local jurisdictions. Some of those actions are specific restoration projects while others are regulatory or programmatic in nature, like protecting forest cover. The intent of all the actions called for in the plan is to improve the cumulative habitat conditions for fish over time. The effectiveness of all the actions is represented in the cumulative habitat conditions, which require that we know both the gains and losses to habitat parameters throughout the basin so that we can evaluate the net loss or gain of any particular habitat metric. It is recommended cumulative habitat conditions be reported on every 5 years. The WRIA 9 Status and Trends Report 2005–2011 (ITC 2012), evaluated most Tier 1 and several Tier 2 Conservation Hypotheses. While it is recommended the WRIA continue to measure the same metrics into the future, the information has been reorganized around recovery strategies that are part of the larger Salmon Habitat Plan update. In addition to the tracking the same metrics as in 2012, it is recommended that two areas be added for future status and trends evaluation. Specifically, it is recommended tracking the amount of and change in intertidal fill along the marine shoreline. Baseline data for 2005 and 2015 have been created that allow for consistent tracking of this metric.
AGENDA ITEM #6. e)
WRIA 9 Monitoring and Adaptive Management Plan
King County Science and Technical Support Section 24 October 2020
At the time the Salmon Habitat Plan was developed, the existing water quality data did not indicate a strong effect on Chinook salmon, thus all water quality parameters were considered a moderate priority. Since the Salmon Plan was developed, three different Temperature Total Maximum Daily Load (TMDL) studies indicated temperature is a serious concern in the mainstem Green River, as well as in Soos and Newaukum creeks. The 2012 Status and Trends report recommended tracking water temperature in the mainstem of the Green River in addition to the tracking water temperatures in Soos and Newaukum Creeks. Information on how cumulative habitat conditions will be evaluated is based on work done for the Status and Trends report in 2012 and is summarized in Table 4. The table includes information on: the method to be used, who is expected to collect the data, who will likely pay for the data, how often and when the evaluation should be done, and a rough cost range for data collection, analysis, and reporting. Unlike the 2012 effort where the ITC dedicated most of a single year to collect and analyze data for the report, it is the intent that some of the data and metrics in Table 4 will be collected and analyzed each year, rather than all the information being collected and analyzed at one time. This will spread the costs and time requirements across a five-year period, which will make the overall undertaking more manageable and affordable with limited resources. It is recommended that the ITC continue to annually coordinate with other entities conducting monitoring in the watershed and evaluate opportunities to leverage other monies and make recommendations to the WEF as to which opportunities to pursue. For example, the ACOE undertakes large wood survey of thirty miles of the Middle Green River every few years. This effort could be leveraged by paying the ACOE consultant to collect the same data in the Lower Green and Duwamish. Having the same data collection methods and same surveyors reduces startup costs and improves data consistency and the ability to reliably analyze trends throughout the river.
AGENDA ITEM #6. e)
WRIA 9 Monitoring and Adaptive Management Plan
King County Science and Technical Support Section 25 October 2020
Summary information on what, how, and when cumulative habitat conditions should be tracked.
Habitat Metric Recovery Strategy Evaluated
in 2012? Method
Who collects data:
who pays for data
collection
How often/when? Cost to WRIA?
Low>2k; med= 2k to 25k, high>25k
River, marine, and large
stream riparian
vegetation condition
Protect, Restore, and
Enhance Riparian
Corridors
yes Photo interpretation of Middle Green CMZ, the banks
of the Lower Green, Soos and Newaukum Creeks,
and 200ft landward along the Nearshore (use
nearshore field surveys supplement with aerial photos)
County or regionally
consortium for photos.
WRIA would pay for
analysis.
Every 5 years dependent on availability
of aerial photographs and staff (last
done in 2009). County wide photos
available every other year (odd years).
HIGH
~1.5 weeks per area, 5 areas to be
analyzed
(Data for Soos and Newaukum needs to be
redone, Nearshore might need to be
adjusted)
Habitat forming high
flows Protect, Restore &
Enhance In-stream Flows
& Cold Water
yes Evaluation of # of days per water year that daily
average flow exceeds 8829cfs Available USGS data:
Not WRIA Every 5 years (last done in 2009).
Analysis/write up in 2016. LOW
Several days of staff time
Riverbank and marine
shoreline armoring Protect, Restore, and
Enhance Channel
Complexity and Edge
Habitat
&
Protect, Restore and
Enhance Floodplain
Connectivity
yes Boat based surveys of banks ITC or consultant;
WRIA ~ Every 5 years
Marine banks last surveyed in 2018, on
schedule to do in 2021.
Lower Green last surveyed in 2014.
Middle Green has not been
comprehensively surveyed since 2004.
MED-Marine
HIGH-Freshwater
Marine intertidal fill Protect, Restore &
Enhance Marine
Shorelines
no Aerial photo and LiDAR comparison. Baseline data for
2005 and 2015 completed. Map/define shoreline edge
and compare and contrast to baseline to identify filled
or restored areas waterward of OWHM
ITC: WRIA Every 5 years.
Update could be done based on 2019
or 2021 aerial photos.
MED to LOW.
Feeder bluff condition by
drift cell Protect, Restore &
Enhance Marine
Shorelines
yes Primary analysis relies on shoreline armor data to
determine impact of changes in shoreline armoring on
sediment processes
ITC or Consultant;
WRIA ~Every 5 years. Relies on data from All
6 being updated. LOW
Several days of staff time to evaluate and
write up.
Shallow water habitat
amount/condition in the
Duwamish.
Protect, Restore and
Enhance Estuarine
Habitat
yes Evaluate area of shallow water habitat created for net
gain and linear feet of shoreline bank restored.
Combine project reporting data with aerial photo
analysis of losses and potential natural gains similar to
analysis for nearshore fill.
ITC or consultant:
WRIA Last evaluation of newly created habitat
done in 2009. Limited baseline of
shoreline condition established in 2004.
No baseline of shallow water habitat
amount exists.
HIGH
River aquatic habitat
condition/complexity
(wood and pools)
Integrate Agricultural
Protection and Salmon
Recovery Initiatives
&
Protect, Restore, and
Enhance Channel
Complexity and Edge
Habitat
yes Habitat data needs to be collected in the field. Metrics
include pieces of large wood and number of wood
jams per mile, pools per mile, pool % by length, avg
residual pool depth, dominant pool forming factor, %
pools formed by wood.
ITC, ACOE, TPU,
consultant: WRIA
(Lower Green and
Duwamish), ACOE
(Middle Green), and
TPU (Upper Green)
Baseline data in Lower Green last
collected in 2014.
Baseline data for wood in the Middle
Green last collected in 2019.
Baseline data in Upper Green was last
collected in 2019
HIGH
Benthic Invertebrate
condition of streams
throughout watershed
Protect, Restore, &
Enhance Sediment &
Water Quality
yes General watershed health will be evaluated by
analyzing trends in benthic index of biotic integrity
scores.
King County and
various jurisdictions
independent of salmon
recovery for lower
basin.
Upper basin: WRIA
Compile data every 5 years. Previous
analysis only included subbasins
flowing into the Mainstem Green River.
Future analyses should include direct
nearshore drainages (data is available
for many) and possibly the upper Green
River every other year.
MED—below HHD, 1 week of analysis-
write up
MED-Upper basin (no data currently,
baseline would need established) AGENDA ITEM #6. e)
WRIA 9 Monitoring and Adaptive Management Plan
King County Science and Technical Support Section 26 October 2020
Habitat Metric Recovery Strategy Evaluated
in 2012? Method
Who collects data:
who pays for data
collection
How often/when? Cost to WRIA?
Low>2k; med= 2k to 25k, high>25k
Forest and impervious
cover throughout the
basin
Protect, Restore, &
Enhance Sediment &
Water Quality
yes Use Coastal Change Analysis Program (CCAP) land
cover data to evaluate forested conditions. Use CCAP
data modified for impervious surface conditions.
NOAA collects land
cover data. WDOE has
modeled impervious
surface based on
CCAP data.
CCAP data is collected every 5 years.
2016 was the last year data was
collected
LOW. Several days of staff time.
Chinook Salmon
passage up and
downstream of Howard
Hanson Dam.
Restore and Improve
Fish Passage no This requires minimal tracking and no analysis. Once
fish passage is provided there will be many
opportunities to leverage required monitoring by TPU
and ACOE
None Once a year check in on status of
downstream fish passage facility. none
Number of days river,
Soos and Newuakum
Creeks violate State
water temperature
standards
Protect, Restore, &
Enhance Sediment &
Water Quality
no Use continuous temperature data collected at
mainstem sites located at the Koss and Upper Green
River sites above the reservoir and two sites below the
reservoir. Compare number of days the Green violated
State standards
King County restarted
collecting data in 2013
for two sites below
reservoir. Tacoma
collects data above the
reservoir.
Compile and evaluate data every 5
years. LOW 1 to several days to evaluate and
write up data.
AGENDA ITEM #6. e)
WRIA 9 Monitoring and Adaptive Management Plan
King County Science and Technical Support Section 27 October 2020
Adaptive Management for Cumulative Habitat Conditions The ITC will prepare a summary of environmental indicator conditions in the watershed compared to the baseline conditions every five years. The summary will classify all environmental indicators investigated as improving, staying the same, or degrading. This information will be compared to the watershed-wide implementation monitoring to gain insight on whether activities to date address the environmental indicators. If so, but the environmental indicator conditions continue to decline, then it means that habitat is being lost faster than it is being gained. The ITC will prepare recommendations of projects to conduct (or project timelines to accelerate) and policies, programs, and regulations that can be useful in stopping habitat loss and providing an overall improvement in habitat. These recommendations will include consideration of:
• Are there incomplete projects in the Salmon Habitat Plan that could improve habitat conditions in ways that would appear in environmental indicator monitoring?
• Does it appear that un-enforced regulations are contributing to the degradation and/or is there a need for additional regulations?
• Are there programs in the Salmon Habitat Plan that could improve conditions that are not being implemented, or is there a need for additional programs? The Forum will consider the ITC recommendations and make commitments of staff or other resources to take action to implement more projects or programs, enforce regulations, or develop new policies, programs, or regulations to address the issue(s).
AGENDA ITEM #6. e)
WRIA 9 Monitoring and Adaptive Management Plan
King County Science and Technical Support Section 28 October 2020
5.0 VALIDATION MONITORING
5.1 Population Status-Viable Salmonid Population
Parameters The central question when working towards salmon recovery is, what is happening with the Chinook? Specifically, we need to know the status (abundance, productivity, distribution/spatial structure, diversity) and long-term sustainability of the Green River Chinook population. These are described by NOAA as Viable Salmonid Population (VSP) parameters. These measures of population status tell us whether the cumulative actions of society and the Salmon Habitat Plan are resulting in improvements in population’s overall resiliency. There are factors outside the scope of the Salmon Habitat Plan that affect adult population abundance—i.e., ocean conditions, harvest rates, hatchery management, other Puget sound stock abundance (WRIAs 7, 8, 9, and 10)—so it is important to focus on aspects of the population that are predominately affected by WRIA 9 habitat actions. Table 5 shows VSP parameters, what each is intended to represent, how they will be measured, and who is collecting data associated with them.
AGENDA ITEM #6. e)
WRIA 9 Monitoring and Adaptive Management Plan
King County Science and Technical Support Section 29 October 2020
Viable Salmonid Population parameters, and who and how they are being measured in WRIA 9.
VSP
Parameter What is it? What does it mean? How is it being measured? Who is measuring?
Productivity The performance
of fish during
each life stage
The natural-origin spawners will produce
sufficient juveniles to grow the population over
the long-term, withstand unproductive ocean
cycles, and provide an abundance of returning
adults without subsidies from the hatchery.
Spawner surveys and juvenile
outmigrants moving downstream at RM
34, since 1999. (1) Egg-to-migrant
survival; (2) Median short-term
population growth rate of natural-origin
spawners; and (3) Recruits per natural-
origin spawner; (4) 5-year average of #
of parr; (5) proportion of adults from fry
life history type.
Green River Smolt Trap is operated
by Washington Department of Fish
and Wildlife (WDFW), and is jointly
funded by ACOE, Tacoma Water,
WRIA 9, and WDFW.
WDFW and MIT count spawners.
Otolith data for #5 would need to
be paid for and collected separately
from existing programs.
Abundance The number of
natural origin fish
in a population
Sufficient numbers of Chinook exist to be
resilient to disturbances and variation in the
environment, allow for negative feedbacks to
stabilize the population size, maintain genetic
diversity, and provide ecosystem benefits such
as marine-derived nutrients. When the
population is too small, the population is
vulnerable to crashes from positive feedbacks
that reduce survival as abundance declines,
and may suffer from inbreeding.
Number of natural origin spawners
annually through spawner surveys
WDFW and (MIT) collect and
report the data. Data is available
via WDFW’s SCORE database.
NOAA’s Salmon Population
Summary Database includes a
Puget Sound wide uniform
escapement method to generate
population numbers.
Spatial
Structure
The
configuration,
quality, and
dynamics of
salmon habitats
and salmon
dispersal among
habitats
The spatial structure is maintained by a net
balance of habitat creation and destruction,
natural rates of genetic exchange between
populations, the presence of some room to
explore (unused but suitable habitat), and by
some highly productive subpopulations that
can prop up less productive ones.
Broad redd distribution data by river
reach is collected during spawning
surveys, but a metric to track this
parameter has not been developed due
to the large reaches the co-managers
use to summarize spawners.
WDFW and MIT have collected
detailed redd locations in some
years, but not consistently. Not
currently evaluating this metric
due to the coarse resolution of
the data.
Diversity Genetic, physical,
and behavioral
differences
among and within
populations
Natural patterns of run timing, age, size, egg
production, body shape, behavior and genetic
diversity still dominate the population. Fish
may disperse unimpeded and gene flow
continues with little alteration.
(1) Percent of total river-spawning
adults that originated from a hatchery;
(2) timing of fry and parr outmigration;
and (3) proportion of older (5 and 6
years) spawners in natural-origin
returns. (4) Median peak spawn timing
(want to see it moving later in year and
greater range)
Green River Smolt Trap (see
above) and adult counts by
WDFW and MIT (also in NOAA’s
Salmon Population Summary
Database)
AGENDA ITEM #6. e)
WRIA 9 Monitoring and Adaptive Management Plan
King County Science and Technical Support Section 30 October 2020
Gaps in VSP monitoring Spatial structure is an important VSP parameter that influences the ability of a population to adapt to habitat complexity. Chinook spawning distribution data by reach has been collected by the co-managers for several decades. In several years, an effort was made to GPS each redd location during the spawning surveys, but this is not consistently done. It is recommended that the WRIA work with the co-Managers to facilitate the collection of detailed location information so that the WRIA can create a metric to measure and track spawning patches (i.e. finer scale redd distribution). This will become more important in the future when passage is provided at Howard Hanson Dam, and spawning distribution may shift due to a doubling of the spawning habitat. Currently, smolt outmigration is measured just above the confluence with Soos Creek, at River Mile 34; there is no smolt trap lower on mainstem to determine productivity of lower river rearing habitats. While Muckleshoot Tribe maintain a smolt trap on Newaukum Creek the data for that trap is not available for analysis. The WRIA 9 Chinook Salmon Research Framework (Ruggerone and Weitkamp 2004) recommended an additional smolt trap at River Mile 18 after the fish passage facility is installed at the Howard Hanson dam. A smolt trap was installed at this location for a short period in 2003, but it was done for a specific research project and was not considered an ideal site for trapping (King County 2013). A new approach to tracking juveniles in the lower Green River will be undertaken in 2021 using Passive Integrated Transponders (PIT). Once the results from the PIT tagging study are complete, the ITC should evaluate if it is appropriate to fund the PIT tagging array in the long term to quantify habitat use and survival through the lower Green. The smolt trap at River Mile 34 is a high priority. The smolt trap facilitates “fish in-fish out” monitoring. In combination with spawning abundance estimates, this trap is used to measure egg to migrant survival for each brood year and to collect data on aspects of life history diversity. It is the best available measure of salmon productivity in freshwater given the range of inter-annual variability with flood events and other factors. VSP monitoring needs to be done annually without breaks due to natural variability in populations. Over long time periods, data from the smolt trap can help detect changes in productivity and life history diversity which should result from the cumulative habitat restoration being undertaken. The smolt trap funding has been in doubt at various times. The current funding approach relies on contributions from four government entities and it is unclear how long this approach will be viable. A long-term regional funding plan is needed to ensure the trap continues operating.
5.2 Ongoing Research and Data Gaps In 2004 the WRIA 9 Technical Committee created the WRIA 9 Chinook Salmon Research Framework to “provide guidance about which research efforts should be implemented in the Green/Duwamish and Central Puget Sound Watershed to inform recovery planning” (Ruggerone and Weitkamp 2004). Existing information was used to create a conceptual model of how Chinook salmon use the watershed to help organize and prioritize data and knowledge gaps for future research. Research topics were categorized into three tiers.
AGENDA ITEM #6. e)
WRIA 9 Monitoring and Adaptive Management Plan
King County Science and Technical Support Section 31 October 2020
Topics in Tier 1 were developed in more detail within the report while Tier 2 and 3 topics were left undeveloped. Since 2004 many data gaps have been addressed or at least partially addressed through various studies. However, as is typical with research, for every question answered many more new questions are created. We now know some items originally listed as lower priorities in 2004 should actually be considered higher priorities and our list of data or knowledge gaps has expanded. There have been many reports with recommendations for additional research. Two newer reports that that compiled and described many new research needs are the WRIA 9 Status and Trends Report (ITC 2012) and the plan update white paper on Chinook use, temperature, climate change, and contaminant (King County 2017a, 2017b, 2017c, 2018). Given the fluidity of our state of knowledge, it was not deemed appropriate to expend significant resources in updating or amending the research framework within the MAMP when it will be out of date shortly thereafter. Instead, it is recommended that the ITC still use and refer back to the research framework as it has laid out many issues in need of additional study as well as possible methods and approaches to addressing the data gap while at the same time taking into account newer information generated since 2004. For example, there are several studies recommended to improve our understanding around how fry use the estuary, but these studies do not take into account our new understanding of how contaminated substrates may be driving the very low survival.
AGENDA ITEM #6. e)
WRIA 9 Monitoring and Adaptive Management Plan
King County Science and Technical Support Section 32 October 2020
6.0 RECOMMENDATIONS Adaptive management involves using monitoring results to make changes to the Salmon Habitat Plan and projects, and requires testing assumptions, and sharing what is learned with the people implementing the plan and projects. Implementing this monitoring and adaptive management plan will be the backbone of our ability to say if recovery actions are working. This plan has identified the monitoring needs for WRIA 9 as it nears the end of the first 15 years of the Salmon Habitat Plan implementation and enters the next phase of salmon recovery with the first major update to the Salmon Habitat Plan. Findings from the monitoring efforts will allow the WRIA 9 stakeholders to adaptively manage for salmon recovery with the latest information about the pace of project and program implementation, the effectiveness of projects, and their effects on the abundance, productivity, diversity, and spatial structure of Chinook salmon. In recent years, the WEF has dedicated a proportion of its local resources to monitoring and research needs. It is recommended that the WRIA continue to do so given the need to describe if the Plans actions are leading to changes in the Chinook VSP parameters. Specifically, it is recommended that the WRIA shift the current monitoring and research grant selection process into a more formal process than it has been. This will allow the WRIA 9 ITC to review and balance the various types of monitoring needs each year. It is expected the monitoring and research grant funding will predominately be directed at, cumulative habitat condition data collection and analyses, smolt trap funding, and some amount of enhanced monitoring and new research to address knowledge gaps. Specific adaptive management actions and roles are described for each type of monitoring in the sections above and are summarized below.
Implementation Monitoring Priorities In order to track how the Salmon Habitat Plan is being implemented, it is recommended that project sponsors report project funding and habitat accomplishments to the WRIA 9 Habitat Projects Coordinator within 3 months of project completion. Additionally, it is recommended that WRIA 9 staff report in writing on a biennial basis on the status of Salmon Habitat Plan implementation related the habitat targets for each subwatershed, as listed in the implementation monitoring section (chapter 3) of this plan.
Project Effectiveness Monitoring Priorities The routine monitoring for projects suggested in this report were prioritized because they should be relatively easy and inexpensive to collect and frequently integrate with permit required monitoring. Routine monitoring for individual project effectiveness should be paid for by project sponsors or grants they receive for project construction, where monitoring costs are allowed. While not encouraged, project sponsors or other groups may also apply for WRIA directed grants for routine monitoring and maintenance, but a high bar should be placed by the ITC to justify why the normal expectations should be discounted. Some projects with more risk or uncertainty in outcomes should be monitored more
AGENDA ITEM #6. e)
WRIA 9 Monitoring and Adaptive Management Plan
King County Science and Technical Support Section 33 October 2020
intensively with funding support by the WRIA under enhanced project monitoring. It is recommended that the WRIA 9 dedicate some funding each year to enhanced project effectiveness monitoring in order to learn more about if specific project types are having the desired benefits. Opportunities to partner with the Army Corps of Engineers on enhanced project effectiveness monitoring for projects in the ERP should also be pursued whenever possible in order to leverage WRIA dollars.
Cumulative Habitat Conditions For cumulative habitat conditions, the strategy recommended is to whenever possible use data from existing monitoring efforts that are already occurring, and to leverage those with the agencies or groups doing the monitoring to expand the efforts to fill any gaps. Also, in some cases, WRIA 9 staff and partners, especially from the ITC, may be able to meet monitoring needs at no extra cost to WRIA 9. Data and evaluation of cumulative habitat conditions should be undertaken each year in order to spread out the tasks and make them manageable with limited staff resources. The sum of all those conditions should be reported on once every five years.
Validation Monitoring A backbone of any monitoring effort is knowing how the fish are doing. The comanagers currently collect most necessary data on adults returning to the Green River. In 2013 when the smolt trap was likely to be funded only once every 10 years due to budget constraints, the ITC recommended that the WRIA contribute to its funding. This is because the smolt trap data is at the heart of our ability to say if the changes in habitat are resulting in changes in Chinook VSP parameters. The trap has been in place for over 20 years, and data compilation and analyses from that data recently provided many valuable insights into recovery efforts (Anderson and Topping 2018). Thus, the ITC strongly recommends continuing to work with basin partners to fund the smolt trap until a more appropriate regional funding source can be found. It is suggested the ITC continue in its existing approach to ranking and funding priorities for research to fill data and knowledge gaps. Small investments in this type of work has provided useful information for the plan update, like the juvenile Chinook use of non-natal stream habitats in the Lower Green, which has raised the importance of restoring access to those habitats.
AGENDA ITEM #6. e)
WRIA 9 Monitoring and Adaptive Management Plan
King County Science and Technical Support Section 34 October 2020
7.0 REFERENCES Anderson and Topping, 2018. Juvenile life history diversity and freshwater productivity of Chinook salmon in the Green River, Washington. North American Journal of Fisheries Management, 38: 180-193. Beechie, Timothy, Eric Buhle, Mary Ruckelshaus, Aimee Fullerton, Lisa Holsinger. 2006. Hydrologic regime and the conservation of salmon life history diversity, Biological Conservation, Volume 130, Issue 4, Pages 560–572, ISSN 0006-3207, 10.1016/j.biocon.2006.01.019. (http://www.sciencedirect.com/science/article/pii/S0006320706000450) Coffin, C., S. Lee, and C. DeGasperi. 2011. Green River Temperature Total Maximum Daily Load Water Quality Improvement Report. Washington State Department of Ecology Publication No. 11- 10.046. http://www.ecy.wa.gov/biblio/1110046.html Greene, Correigh M. and Timothy J. Beechie. 2004. Consequences of potential density-dependent mechanisms on recovery of ocean-type chinook salmon (Oncorhynchus
tshawytscha). Canadian Journal of Fisheries and Aquatic Sciences, 61:590-602. Green/Duwamish and Central Puget Sound Watershed Water Resource Inventory Area 9 Steering Committee. 2005. Salmon Habitat Plan: Making our Watershed Fit for a King. Prepared for the WRIA 9 Forum. King County Water and Land Resources Division, Seattle, WA. King County. 2004. Auburn Narrows floodplain habitat restoration project: surface water Hydrology. Prepared by Kathryn Neal for King County Water and Land Resources Division, Seattle, WA. King County. 2013. DRAFT. Juvenile Chinook migration, growth, and habitat use in the Lower Green River, Duwamish River, and nearshore of Elliott Bay, 2001–2003. King County Department of Natural Resources and Parks, Water and Land Resources Division, Seattle. King County. 2017a. A synthesis of changes in our knowledge of Chinook salmon productivity and habitat uses in WRIA 9 (2004–2016). Prepared by Kollin Higgins of King County Water and Land Resources Division. Seattle, Washington for the WRIA 9 Watershed Ecosystem Forum.
AGENDA ITEM #6. e)
WRIA 9 Monitoring and Adaptive Management Plan
King County Science and Technical Support Section 35 October 2020
King County. 2017b. Green River temperature and salmon. Prepared by Josh Kubo of King County Water and Land Resources Division. Seattle, Washington for the WRIA 9 Watershed Ecosystem Forum. King County. 2017c. WRIA 9 Climate Change Impacts on Salmon. Prepared by Jessica Engel, Kollin Higgins, and Elissa Ostergaard of King County Water and Land Resources Division. Seattle, Washington for the WRIA 9 Watershed Ecosystem Forum. King County. 2018. An evaluation of potential impacts of chemical contaminants to Chinook Salmon in the Green-Duwamish Watershed. Prepared by Jenee Colton, Water and Land Resources Division. Seattle Washington, for the WRIA 9 Watershed Ecosystem Forum. Konrad, C., H.B. Berge, R.R. Fuerstenberg, K. Steff, T. Olsen, and J. Guyenet. 2011. Channel dynamics in the Middle Green River, Washington, from 1936 to 2002. Northwest Science 85: 1-14. Latterell, Josh. 2008. Baseline Monitoring Study of Restoration Effectiveness in the Green River (Mile 32): Process and Habitats in the Channel and Floodplain. King County DNRP, Water and Land Resources Division, Seattle, WA. www.kingcounty.gov/environment/wlr/sections-programs/science-section/doing-science/green-river-restoration-study.aspx Puget Sound Recovery Implementation Technical Team, R. Ponzio and K. Stiles. March 2013. Puget Sound Chinook Salmon Recovery: A Framework for the Development of Monitoring and Adaptive Management Plans. Northwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, Seattle, WA. Ruggerone, G.T. and D.E. Weitkamp. 2004. WRIA 9 Chinook Salmon Research Framework. Prepared for The WRIA 9 Steering Committee. Prepared by Natural Resource Consultants, Inc., and Parametrix, Inc. Seattle, WA. WRIA 9 Adaptive Management and Monitoring Workgroup and Anchor Environmental LLC. 2006. Implementation Guidance for the WRIA 9 Salmon Habitat Plan. Prepared for the WRIA 9 Steering Committee, Seattle WA. pp101. WRIA 9 Implementation Technical Committee. 2012. WRIA 9 Status and Trends Monitoring Report: 2005–2010. Prepared for the WRIA 9 Watershed Ecosystem Forum. King County Department of Natural Resources and Parks, Water and Land Resources Division, Seattle, WA.
AGENDA ITEM #6. e)
Green-Duwamish and Central Puget Sound Watershed Salmon Habitat Plan • November 2020 PAGE
G-1
ROGER TABOR
Appendix G:
Recovery Strategies
AGENDA ITEM #6. e)
PAGE
G-2 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 UpdatePAGE
G-2 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Recovery Strategy Subwatersheds Programs Policies
Restore and Improve Fish Passage All •Fish passage barrier removal (1)
Protect, Restore and Enhance
Floodplain Connectivity
Lower & Middle
Green
•N/A (4)
Protect, Restore, and Enhance
Channel Complexity and Edge
Habitat
Lower, Middle &
Upper Green
•Gravel and wood supplementation (2)
Protect, Restore, and Enhance
Riparian Corridors
All •Regreen the Green Revegetation
•Noxious/invasive weed removal
•Site stewardship and maintenance
(5)
Protect, Restore, and Enhance
Sediment and Water Quality
All •Pollution Loading Assessment
•Pollution Identification and Control
•Creosote Removal
(7)
Protect, Restore and Enhance
Marine Shorelines
Marine Nearshore •Private landowner toolbox
•Shore Friendly Technical Assistance
•Nearshore acquisition strategy
(5)
Protect, Restore and Enhance Estu-
arine Habitat
Duwamish •Implement Duwamish Blueprint (3)
Protect, Restore and Enhance
In-stream Flows and Cold Water
Refugia
Lower, Middle &
Upper Green
•Watershed management plan
•Upper Green Watershed Strategy
(5)
Expand Public Awareness and
Education
All •Behavior change communication plan
•Volunteer stewardship
•Community science and monitoring
•Shoreline workshops
(2)
Integrate Agricultural Protection
and Salmon Recovery Initiatives
Lower & Middle
Green
•Farm conservation plans
•Livestock program
(2)
Integrate Salmon Recovery into
Land Use Planning
All •Restoration incentives
•Compliance monitoring and enforcement
(10)
Plan Implementation and Funding All •Basin stewardship
•Land Conservation Initiative
•Green/Duwamish Ecosystem Restoration
Program
(7)
APPENDIX G
Recovery Strategies
AGENDA ITEM #6. e)
Published by the
Green/Duwamish and Central Puget Sound Watershed
Water Resource Inventory Area 9 (WRIA 9)
Salmon Habitat Plan 2021 Update Appendices
MAKING OUR WATERSHED FIT FOR A KING
City of Algona
City of Auburn
City of Black Diamond
City of Burien
City of Covington
City of Des Moines
City of Enumclaw
City of Federal Way
City of Kent
King County
City of Maple Valley
City of Normandy Park
City of Renton
City of SeaTac
City of Seattle
City of Tacoma
City of Tukwila
Approved by the WRIA 9 Watershed
Ecosystem Forum on February 11, 2021
KCIT-DCE file: 2102_10102L_W9SHP-REPORT.indd
ROGER TABOR
AGENDA ITEM #6. e)
1
CITY OF RENTON, WASHINGTON
RESOLUTION NO. _______
A RESOLUTION OF THE CITY OF RENTON, WASHINGTON, RATIFYING THE 2021
UPDATE TO THE GREEN/DUWAMISH AND CENTRAL PUGET SOUND WATERSHED
OR WATER RESOURCE INVENTORY AREA (WRIA) 9 SALMON HABITAT PLAN,
MAKING OUR WATERSHED FIT FOR A KING.
WHEREAS, the 2021 Update to the WRIA 9 Salmon Habitat Plan (“WRIA 9 Plan”) is an
addendum to the 2005 WRIA 9 Salmon Habitat Plan, and includes new science, revised habitat
goals and recovery strategies, an updated capital project list, and a monitoring and adaptive
management plan; and
WHEREAS, 17 local governments in WRIA 9 (“Parties”) have partnered through an inter‐
local agreement (ILA) (2001‐2006, 2007‐2015, 2016‐2025) to jointly fund development and
implementation of the WRIA 9 Plan to address shared interest in and responsibility for long‐term
watershed planning and salmon recovery in the Green/Duwamish and Central Puget Sound
Watershed (“watershed”); and
WHEREAS, in March 1999, the National Oceanic and Atmospheric Administration (NOAA)
Fisheries listed the Puget Sound Chinook salmon evolutionary significant unit, including the
Green River Chinook salmon population, as a threatened species under the Endangered Species
Act (ESA); and
WHEREAS, local jurisdictions have authority over some habitat‐based aspects of Chinook
survival through land use and other policies and programs; and the state and tribes, who are the
legal co‐managers of the fishery resource, are responsible for addressing harvest and hatchery
management; and
AGENDA ITEM #6. e)
RESOLUTION NO. _______
2
WHEREAS, the WRIA 9 partners recognize participating in the ILA and implementing
priorities in the WRIA 9 Plan demonstrates their commitment to proactively working to address
the ESA listing of Chinook salmon; and
WHEREAS, coordination and cooperation among federal, state, and local agencies, tribes,
businesses, non‐governmental organizations, landowners, citizens, and other interests are
essential to implement and adaptively manage a salmon recovery plan; and
WHEREAS, the Puget Sound Partnership serves as the Puget Sound regional organization
and lead agency for planning and implementing the Puget Sound Salmon Recovery Plan,
approved by NOAA Fisheries; and
WHEREAS, the WRIA 9 Plan is one of 15 watershed‐based chapters of the Puget Sound
Salmon Recovery Plan; and
WHEREAS, the City supports cooperation at the WRIA level to set common priorities for
actions among partners, efficient use of resources and investments, and distribution of
responsibility for actions and expenditures; and
WHEREAS, habitat protection and restoration actions to increase Chinook salmon
productivity trends are necessary throughout the watershed, in conjunction with other recovery
efforts, to avoid extinction in the near term and restore WRIA 9 Chinook salmon to viability in the
long term; and
WHEREAS, salmon recovery is interrelated with flood risk reduction, water quality
improvement, open‐space protection, recreation, economic development, and tribal treaty
rights; and
AGENDA ITEM #6. e)
RESOLUTION NO. _______
3
WHEREAS, the City has a strong interest to achieve multiple benefit outcomes for people
and fish across the watershed; and
WHEREAS, the WRIA 9 Plan recognizes that salmon recovery is a long‐term effort, and
focuses on a 10‐year implementation time horizon to allow for evaluation of progress and
adaptation of goals and implementation strategies; and
WHEREAS, it is important to provide jurisdictions, the private sector and the public with
certainty and predictability regarding the course of salmon recovery actions in WRIA 9; and
WHEREAS, if insufficient action is taken at the local and regional level, it is unlikely
Chinook salmon populations in WRIA 9 will improve and it is possible the federal government
could list Puget Sound Chinook salmon as an endangered species, thereby decreasing local
flexibility; and
WHEREAS, the Parties previously took formal action to ratify the 2005 Salmon Habitat
Plan; and
WHEREAS, the City ratified the 2005 Salmon Habitat Plan by Resolution No. 3776, passed
October 17, 2005;
NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF RENTON, WASHINGTON, DO
RESOLVE AS FOLLOWS:
SECTION I. The City hereby ratifies the Green/Duwamish and Central Puget Sound
Watershed, Water Resource Inventory Area 9 Salmon Habitat Plan Update, Making Our
Watershed Fit for a King, dated February 2021, attached hereto as Exhibit “A” and incorporated
by this reference. Ratification is intended to convey the City’s support for the following:
AGENDA ITEM #6. e)
RESOLUTION NO. _______
4
1. Protecting and restoring habitat based on best available science with the
intent to achieve sustainable, resilient, and harvestable populations of naturally spawning
Chinook salmon.
2. Pursuing a multi‐benefit approach to WRIA 9 Plan implementation that
integrates salmon recovery, flood hazard reduction, water quality improvements, open space
and recreation, and equity and social justice to improve outcomes for people and fish.
3. Utilizing the WRIA 9 Plan as a source of best available science to inform local
government actions, including, but not limited to land use, shoreline, and transportation
planning/permitting.
4. Utilizing capital project concepts, programmatic actions, and policies outlined
within the WRIA 9 Plan to inform local priorities for implementation and funding via grants,
capital improvements, ordinances, and other activities. Ratification does not obligate any partner
to implement any specific actions or adhere to specific timelines for such actions.
5. Working collaboratively with local, state, and federal partners and tribes to
support and fund implementation of the WRIA 9 Plan, including monitoring and adaptive
management to address scientific uncertainty, tracking and communicating progress, and
refining strategies to ensure cost‐effective investments.
PASSED BY THE CITY COUNCIL this ______ day of _____________________, 2021.
______________________________
Jason A. Seth, City Clerk
AGENDA ITEM #6. e)
RESOLUTION NO. _______
5
APPROVED BY THE MAYOR this ______ day of _____________________, 2021.
______________________________
Armondo Pavone, Mayor
Approved as to form:
______________________________
Shane Moloney, City Attorney
RES:1877:7/8/2021
AGENDA ITEM #6. e)
RESOLUTION NO. _______
6
EXHIBIT “A”
Green/Duwamish and Central Puget Sound
Watershed, Water Resource Inventory Area 9
Salmon Habitat Plan Update, Making Our
Watershed Fit for a King, dated February 2021
AGENDA ITEM #6. e)
MAKING OUR WATERSHED FIT FOR A KING
Salmon Habitat Plan
2021 Update
GREEN/DUWAMISH AND
CENTRAL PUGET SOUND WATERSHED
Water Resource Inventory Area 9 (WRIA 9)
Approved by the WRIA 9 Watershed Ecosystem Forum on
February 11, 2021
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
3
Green/Duwamish and Central Puget Sound Watershed
Water Resource Inventory Area 9 (WRIA 9)
Approved by the WRIA 9 Watershed Ecosystem Forum on February 11, 2021
Alternate formats available
Voice: 206-296-6519 TTY Relay: 711
For Additional Copies of this Plan:
King County Water and Land Resources Division
201 South Jackson Street, Suite 201
Seattle, WA 98104
206-296-6519
Recommended Citation:
Water Resource Investory Area 9 (WRIA 9). 2021.
Green/Duwamish and Central Puget Sound Water-
shed Salmon Habitat Plan 2021 Update. Making Our
Watershed Fit for a King. Approved by the Watershed
Ecosystem Forum February 11, 2021.
File Archive:
2102_10102L_W9SHP-REPORTt.indd
King County IT Design and Civic Engagement Unit archives
Salmon Habitat Plan 2021 Update
MAKING OUR WATERSHED FIT FOR A KING
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
4
Contents
Foreword .............................................................................................................................................................................................8
Acknowledgements ......................................................................................................................................................................10
Executive Summary ......................................................................................................................................................................11
Chapter 1: Background ................................................................................................................................................................13
Regional Salmon Recovery Context ..........................................................................................................................................13
WRIA 9 Organizational Structure ..................................................................................................................................................15
Equity and Social Justice ...................................................................................................................................................................15
Chapter 2: Green/Duwamish and Central Puget Sound Watershed – A Snapshot .......................................17
Chapter 3: The Chinook Salmon Life Cycle – Connecting a Diverse Watershed ...........................................23
Adult Upstream Migration/Spawning ......................................................................................................................................23
Egg Incubation/Emergence .............................................................................................................................................................23
Juvenile Freshwater Rearing/Migration .................................................................................................................................24
Juvenile Estuary Rearing ....................................................................................................................................................................24
Marine Nearshore Rearing ...............................................................................................................................................................25
Ocean Migration .......................................................................................................................................................................................25
Chapter 4: Current Population Status and Recovery Goals .....................................................................................27
Viable Salmon Population Criteria – Current Status and Goals ...........................................................................27
Habitat Goals – Implementation Targets ...............................................................................................................................30
Chapter 5: Strategic Assessment Update - New Science on Priority Pressures ...........................................33
Priority Pressures (Basin of Focus) ............................................................................................................................................33
Chapter 6: Recovery Strategies .............................................................................................................................................49
Strategy: Restore and Improve Fish Passage ...................................................................................................................49
Strategy: Protect, Restore and Enhance Floodplain Connectivity .....................................................................51
Strategy: Protect, Restore, and Enhance Channel Complexity and Edge Habitat ...............................52
Strategy: Protect, Restore, and Enhance Riparian Corridors ...............................................................................53
Strategy: Protect, Restore, and Enhance Sediment and Water Quality .......................................................55
Strategy: Protect, Restore and Enhance Marine Shorelines .................................................................................58
Strategy: Protect, Restore and Enhance Estuarine Habitat ....................................................................................60
Strategy: Protect, Restore and Enhance Instream Flows and Cold Water Refugia ............................62
Strategy: Expand Public Awareness and Education ....................................................................................................64
Strategy: Integrate Agricultural Protection and Salmon Recovery Initiatives .........................................66
Strategy: Integrate Salmon Recovery into Land Use Planning ...........................................................................68
Plan Implementation and Funding ..............................................................................................................................................70
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
5
ROGER TABOR
Chapter 7: Capital Projects ......................................................................................................................................................73
Project Prioritization ................................................................................................................................................................................74
Capital Project Information by Subwatershed. ...................................................................................................................75
Marine Nearshore Subwatershed ...............................................................................................................................76
Duwamish Estuary Subwatershed ..........................................................................................................................102
Lower Green River Subwatershed ............................................................................................................................118
Middle Green River Subwatershed .........................................................................................................................146
Upper Green River Subwatershed ..........................................................................................................................160
Chapter 8: Implementation Strategy .................................................................................................................................163
Annual Funding Package.................................................................................................................................................................. 163
Salmon Recovery Funding............................................................................................................................................................... 164
WRIA 9 CWM Funding Allocation.............................................................................................................................................. 164
Outyear Project Planning (6-year CPIP)............................................................................................................................... 165
Performance Management............................................................................................................................................................. 165
Chapter 9: Monitoring and Adaptive Management ....................................................................................................167
Adaptive Management Framework.......................................................................................................................................... 167
Implementation Monitoring............................................................................................................................................................ 168
Effectiveness Monitoring ................................................................................................................................................................. 168
Validation Monitoring........................................................................................................................................................................... 170
Chapter 10: References ............................................................................................................................................................173
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
6
List of Figures
Figure 1. Green/Duwamish and Central Puget Sound Chinook salmon recovery timeline. ........................................14
Figure 2. Green/Duwamish (WRIA 9) Watershed Map............................................................................................................................... 19
Figure 3. Green/Duwamish (WRIA 9) Land Use Designations Map ................................................................................................21
Figure 4. The Salmon Cycle ............................................................................................................................................................................................24
Figure 5. Primary Chinook salmon life history types in the Green River (updated and modified
from Ruggerone and Weitkamp 2004). ...........................................................................................................................................25
Figure 6. Green River Chinook salmon escapement. .................................................................................................................................29
Figure 7. Howard Hanson Dam spring water storage and allocation. ..........................................................................................34
Figure 8. Projected impacts to Green/Duwamish and Central Puget Sound salmon as a
result of climate change. .............................................................................................................................................................................36
Figure 9. Coastal squeeze in nearshore graphic along the Puget Sound Nearshore refers to
the shallow areas where forage fish spawn are being squeezed out of existence by
shoreline armoring and sea level rise (Coastal Geologic Services). ........................................................................37
Figure 10. Plot of 7-DMax water temperatures for the 2015 and 2016 calendar years measured
by King County at the Whitney Bridge station (GRT10) compared to 7-DMax
temperaturesmeasured from 2001-2014. ........................................................................................................................................39
Figure 11. Representative tributary mouth habitats associated with flapgate flood
control structures. .............................................................................................................................................................................................41
Figure 12. Spawners-recruit plots showing abundance of fry and parr produced based on
estimated adult Chinook salmon escapement (Anderson and Topping 2018). ...............................................43
Figure 13. Chinook salmon that enter the estuarine waters as fry (< 60 mm) experience
very low marine survival rates ...............................................................................................................................................................44
Figure 14. Shoreline modification identified during Marine Shoreline Monitoring and
Compliance Project (Ecology). ...............................................................................................................................................................46
Figure 15. Juvenile fish passage barriers block juvenile Chinook salmon access to important
rearing habitat in non-natal tributaries (Mike Perfetti) .......................................................................................................50
Figure 16. Healthy juvenile chinook sampled from a non-natal tributary in 2018 (Chris Gregersen) .....................50
Figure 17. The Lower Russell Road Levee Setback Project is a multi-benefit project that
provides flood risk reduction, habitat restoration, and recreational enhancements. ..................................51
Figure 18. Progress towards the watershed revegetation goals established in the WRIA 9
Re-Green the Green Strategy. .................................................................................................................................................................54
Figure 19. Stormwater-induced mortality in coho salmon in Miller Creek, Normandy Park ..........................................57
Figure 20. Before and after Phase II restoration of Seahurst Park in the City of Burien ....................................................58
Figure 21. Duwamish Gardens created 1.3 acres of shallow water rearing habitat in a critically
important transition zone of the Duwamish Estuary. Subsequent monitoring has
documented extensive use of the site by juvenile Chinook salmon. ........................................................................61
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
7
Figure 22. Before (2013) and after (2019) restoration photos of the Big Springs Creek. ..................................................63
Figure 23. A community volunteer examines a salmon carcass as part of the Miller/Walker
Basin Community Salmon Investigation. ....................................................................................................................................66
Figure 24. The Riverview Park Project created approximately 800 ft of side channel to
increasing juvenile Chinook rearing and refuge habitat in the Lower Green River. ...................................71
Figure 25. Number of Projects by Subwatershed ...........................................................................................................................................72
Figure 26. Marine Nearshore Subwatershed Projects (Map) ................................................................................................................77
Figure 27. Duwamish Estuary Subwatershed Projects (Map) ...........................................................................................................103
Figure 28. Lower Green River Subwatershed Projects (Map) ..............................................................................................................119
Figure 29. Middle Green River Subwatershed Projects (Map) ...........................................................................................................147
Figure 30. Upper Green River Subwatershed Projects (Map ..............................................................................................................160
Figure 31. Types of monitoring used to evaluate management strategies and adapt
them as necessary ......................................................................................................................................................................................168
Figure 32. Adaptive management decision framework. .........................................................................................................................169
List of Tables
Table 1. Viable Salmon Population (VSP) Goals ............................................................................................................................................28
Table 2. Green/Duwamish and Central Puget Sound Habitat Goals. .............................................................................................31
Table 3. Marine Nearshore Subwatershed Tier 3 Projects ....................................................................................................................98
Table 4. Duwamish Estuary Subwatershed Tier 3 Projects ..................................................................................................................116
Table 5. Lower Green River Subwatershed Tier 3 Projects ................................................................................................................144
Table 6. Middle Green River Subwatershed Tier 3 Projects ...............................................................................................................158
Appendices
Appendix A: An Evaluation of Potential Impacts of Chemical Contaminants to Chinook Salmon
in the Green/Duwamish Watershed
Appendix B: A Synthesis of Changes in our Knowledge of Chinook Salmon Productivity and Habitat
Uses in WRIA 9 (2004 – 2016)
Appendix C: Green River Temperature and Salmon
Appendix D: WRIA 9 Climate Change Impacts on Salmon
Appendix E: Capital Project Evaluation Template
Appendix F: Monitoring and Adaptive Management Plan
Appendix G: Recovery Strategies
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
8
Foreward
On behalf of the Green Duwamish and Central Puget Sound Watershed (WRIA 9) Watershed Ecosystem
Forum, we are pleased to present this update to the 2005 WRIA 9 Salmon Habitat Plan, “Making Our
Watershed Fit for a King” (2005 Plan). The 2021 WRIA 9 Salmon Plan Update (Plan Update) represents
a renewed commitment to salmon recovery efforts in WRIA 9 and provides a science-based framework
for identifying, prioritizing and implementing salmon recovery actions over the next 10-15 years. It
refines and adds key recovery strategies based on new science and ensures resources will continue to
be directed to where they provide the greatest benefit for Chinook salmon.
The original 2005 Plan translated science into actions. Plan implementation by multiple WRIA 9
entities in the last 15 years helped leverage over $200 million of local, state and federal funding
to realign more than 2 miles of levees to reconnect floodplains, restore over 4,500 feet of marine
shoreline and revegetate 500 acres of riparian habitat. While we recognize these achievements, we
also acknowledge that salmon recovery is a long-term endeavor that requires continued coordinated
action. Chinook salmon numbers remain critically low and human population growth and climate
change are only magnifying the challenges we face in salmon recovery.
Chinook salmon are an integral part of our regional identity. The Watershed Ecosystem Forum - a
regional partnership of 17 local governments, state resource agencies, business interests and non-
profit organizations – is collectively committed to implementing actions that will improve watershed
conditions for our salmon populations. Plan implementation supports more than just salmon recovery;
it supports tribal treaty rights, community flood hazard reduction, water quality improvement, open
space protection, and outdoor recreation.
While the Green/Duwamish and Central Puget Sound Watershed has faced numerous challenges,
we are optimistic about the future of our watershed. The downstream fish passage facility at Howard
Hansen Dam, clean-up of the Lower Duwamish Waterway Superfund sites, and a regional commitment
to integrated floodplain management reflect a projected investment of hundreds of millions of dollars
over the next 10-15 years. As we work towards an improved future, we are reminded of a quote from a
historical planning guide for the Green River corridor: ROGER TABORAGENDA ITEM #6. e)
Forward edits
In third paragraph, second line, recommend inserting “and” between “business interests”
and “non-profit”
There are extra spaces in several places between words. That may be a graphics issue, but
in case it can be fixed, I found them in the following places:
i. Second paragraph, 3rd line, between “than” and “2”
ii. Second paragraph, 5th line, between “is” and “a”
iii. Third paragraph, 3rd line, between “collectively” and “committed”
iv. Fourth paragraph, 1st line between “While” and “the”
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
9
As we look at the Green River corridor, we must say, ‘This is the way the
people want it to be.’ Therefore, in each locality, someone should steadily be
asking, ‘is this the way we want it to be, now and in the future?’ The ultimate
condition of the Green River Basin should be the result of informed and far-
sighted public decisions.
River of Green, 1978
We look forward to collaborating with all our local, state, federal, and tribal partners in realizing our
collective vision for this watershed and welcoming back ever stronger runs of salmon.
Sincerely,
Councilmember Nancy Tosta
City of Burien
Co-Chair
WRIA 9 Watershed Ecosystem Forum
Councilmember Lisa Herbold
City of Seattle
Co-Chair
WRIA 9 Watershed Ecosystem Forum
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
10
Acknowledgements
Primary Authors
Matthew Goehring, WRIA 9
Kollin Higgins, King County
Doug Osterman, WRIA 9
Suzanna Smith, WRIA 9
Report Preparation
GIS Analysis: Todd Klinka, King
County
Design: Laurel Preston, King County
Watershed Ecosystem
Forum
Chris Stearns, Auburn
Tamie Deady, Black Diamond
Nancy Tosta, Burien
Jennifer Harjehausen, Covington
Matt Pina, Des Moines
Chris Searcy, Enumclaw
Lydia Assefa-Dawson, Federal Way
Dana Ralph, Kent
Dow Constantine, King County
Susan West, Normandy Park
Valerie O’Halloran, Renton
Erin Sitterly, SeaTac
Lisa Herbold, Seattle
Scott Dewhirst, Tacoma Public
Utilities
Allan Ekberg, Tukwila
Wendy McDermott, American Rivers
Katie Moxley, Boeing Company
Steve Lee, Covington Water District
James Rassmussen, Green/Duwa-
mish Watershed Alliance
Burr Mosby, King Conservation
District
Michelle Clark, King County Flood
Control District
Jeanette Dorner, Mid-Sound Fisheries
Enhancement Group
Sandy Kilroy, Port of Seattle
Max Prinsen, SHADOW
Jeff Dillon, U.S. Army Corps of
Engineers
Weston Brinkley, Green-Duwamish
Urban Waters Partnership
Cleo Neculae, Washington State
Department of Ecology
Stewart Reinbold, Washington
Department of Fish and Wildlife
Joe Miles, Washington Department of
Natural Resources
Implementation Technical
Committee
Joe Anderson, Washington State
Department of Fish and Wildlife
Kerry Bauman, King County
Katie Beaver, King County
Elizabeth Butler, Washington State
Recreation and Conservation Office
David Casey, City of Maple Valley
Jeanette Dorner, Mid Sound Fisheries
Alexandra Doty, Puget Sound
Partnership
Joseph Farah, City of Renton
Larry Fisher, Washington State
Department of Fish and Wildlife
Matthew Goehring, WRIA 9
Chris Gregersen, King County
Meara Heubach, City of Kent
Kollin Higgins, King County
Josh Kahan, King County
Katherine Lynch, Seattle Public
Utilities
Nathan Malmborg, US Army Corps
Kathy Minsch, City of Seattle
Kathryn Moxley, Boeing
Cleo Neculae, Washington State
Department of Ecology
Nikolas Novotny, Tacoma Water
Jessica Olmstead, Washington State
Department of Natural Resources
Brandon Parsons, American Rivers
Mike Perfetti, City of Tukwila
Dennis Robertson, City of Tukwila
Patty Robinson, King County
Suzanna Smith, WRIA 9
Rowena Valencia-Gica, City of Kent
Financial Support
Funding provided by the WRIA 9
Interlocal Agreement among 17
local government partners and
Cooperative Watershed Management
funds provided by the King County
Flood Control District.
Management Committee
Chris Stearns, City of Auburn
Jennifer Harjehausen, City of Covington
Lydia Assefa-Dawson, Federal Way
Toni Troutner, City of Kent
Josh Baldi, King County
Susan West, City of Normandy Park
Valerie O’Halloran, City of Renton
Susan Saffery, City of Seattle
Former WRIA 9 Leadership
Bill Peloza, City of Auburn
Marlla Mhoon, City of Covington
Dennis Roberton, City of Tukwila
Doug Osterman, WRIA 9
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
11
Executive Summary
as Threatened. Population abundance, productivity,
diversity and spatial distribution have not improved,
and in some cases have continued to decline.
A Strategic Assessment Update summarizes new
research findings that address important data gaps
identified in the 2005 Plan. New information related
to habitat use and fish productivity, climate change,
temperature, and contaminants supported a
reassessment of functional linages between priority
stressors, habitat conditions, and VSP parameters.
This information serves as the foundation for the
other core elements of the Plan Update.
Although the Plan Update maintains existing
NOAA-approved VSP goals, it introduces new 10-year
habitat goals (implementation targets) that represent
continued progress towards the long-term necessary
future conditions for achieving a viable salmon popu-
lation, as outlined in 2005 Plan. The numerical targets
for key habitats serve as a benchmark for evaluating
plan implementation over time and informing ongo-
ing adaptive management.
The Plan Update outlines a portfolio of 12 recov-
ery strategies – including embedded policies and
programs – to address priority pressures; increase
salmon abundance, productivity, and diversity; and
build long-term population resiliency. Successful
This document updates the 2005 Green/Duwamish
and Central Puget Sound Watershed (WRIA 9),
Making Our Watershed Fit for a King, Salmon Habitat
Plan. The 2005 Plan served as the blueprint for
salmon habitat recovery in WRIA 9 for 15 years. It is
fitting that the Puget Sound Regional Council award-
ed the original 2005 Plan a Vision 2020 Award. Al-
though the Plan Update reflects over a decade of new
science regarding salmon conservation and recovery
since the award, the core recovery strategies and un-
derlying scientific framework remain largely valid to-
day and continue to provide an important foundation
for salmon recovery. The Plan Update – designed to
be a stand-alone document – is intended to update,
not replace, the 2005 Plan. The two documents, along
with the 2014 Duwamish Blueprint and the 2016 Re-
green the Green, provide a science-based framework
for identifying, prioritizing and implementing salmon
recovery actions.
This document provides a status update for Green
River Chinook salmon using the National Oceanic
and Atmospheric Administration (NOAA)-approved
viable salmon population (VSP) criteria. Over 20 years
have passed since the listing of the Puget Sound
Chinook salmon evolutionarily significant unit (ESU)
under the Endangered Species Act (ESA). Despite
significant investments and large-scale restoration
projects, Green River Chinook salmon remain listed
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
12
implementation hinges on partner coordination and
investment to ensure local land use planning, capi-
tal investment programs, and community outreach
messaging are consistent with identified watershed
priorities.
An updated list of capital projects was developed
in partnership with interlocal agreement member
jurisdictions, non-profit partners, state agencies,
and others engaged in salmon recovery. The updat-
ed project list identifies 127 capital habitat projects
across the five subwatersheds. Individuals projects
are ranked within their specific subwatershed – not
across subwatersheds. Projects are tiered based on
overall benefit towards recovery and to provide con-
text for the level of financial need. Tier 1 projects have
significant potential to advance recovery and sub-
stantively contribute to habitat goals. Tier 2 and Tier 3
have moderate and limited potential, respectively, to
advance recovery and contribute to achieving habitat
goals.
The Monitoring and Adaptive Management Plan
(MAMP) outlines monitoring priorities intended to
help evaluate progress and inform strategic adapta-
tion of the recovery strategies. The MAMP establishes
a framework for (1) tracking implementation goals,
(2) assessing project effectiveness, (3) evaluating
habitat status and trends, (4) evaluating the popula-
tion status of Green River Chinook salmon, and
(4) prioritizing research and monitoring investments.
This framework will guide data collection to support
regular assessment of progress and allow the WRIA
to reassess prioritization and sequencing of recovery
actions. PHOTO: ELI BROWNELL Green River Natural Area
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
13
Chapter 1:
Background
The 2005 Green/Duwamish and Central Puget Sound
Watershed Salmon Habitat Plan, Making Our Water-
shed Fit for a King, represented the culmination of
over five years of technical reconnaissance, research,
and policy development. The Plan was a local wa-
tershed-based response to the federal government’s
1999 listing of Puget Sound Chinook salmon as
“threatened” under the Endangered Species Act. The
2005 Plan – which received a Puget Sound Regional
Council Vision 2020 Award – translated a tremendous
wealth of science into discrete policy recommenda-
tions and management actions necessary to sup-
port recovery of natural origin Green River Chinook
salmon.
The 2005 Plan provided the blueprint for Chinook
salmon recovery in the Green/Duwamish and Central
Puget Sound for 15 years. It helped watershed part-
ners leverage upwards of $200 million dollars of local,
state and federal funding for salmon recovery. Plan
implementation resulted in nearly 2 miles of levee
setbacks, over 4,500 feet of marine shoreline resto-
ration, and approximately 500 acres of revegetation.
Despite of these accomplishments, the continued
decline of Chinook salmon – both locally and region-
ally – highlights the urgent need for expanding and
accelerating recovery efforts.
This Salmon Habitat Plan Update represents the next
chapter of salmon recovery efforts in the Green/
Duwamish and Central Puget Sound Watershed. It
provides a science-based framework for identify-
ing, prioritizing and implementing salmon recovery
actions over the next 10-15 years. The integration of
over a decade of new science informed important
refinements to recovery priorities and investment
strategies outlined in the 2005 Plan. These refine-
ments reflect the watershed’s commitment to adap-
tive management and ensure that limited resources
are directed to where they can provide the greatest
benefit towards Chinook salmon recovery. Although
the focus of this plan is on Chinook salmon recovery,
implementation will also provide parallel benefits to
other salmon and steelhead.
Regional Salmon Recovery Context
This addendum updates the Green/Duwamish and
Central Puget Sound watershed chapter of the
National Oceanic and Atmospheric Administration
(NOAA)-approved 2007 Puget Sound Salmon Recov-
ery Plan. The Green River Chinook salmon popula-
tion is one of six Chinook salmon populations in the
Central/South sub-basin and one of 22 remaining
populations in the Puget Sound Chinook salmon evo-
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
14
Why does the data on salmon abundance begin to improve in 1975?
The quality of data on annual salmon population runs improves starting in
1975, when the Washington Department of Fisheries (predecessor to the
Washington Department of Fish and Wildlife) initiated data collection in
response to the federal court mandate to develop and share annual abun-
dance of salmon returning to individual rivers in Puget Sound.
Chinook Salmon
Recovery Timeline
Puget Sound
Chinook
listed as
threatened
species
Population 2016
Seattle: 689,000
Green River 1963
Howard Hanson Dam Built
Lowest number
of natural origin
spawners (182)
recorded in the
Green River
1870 1881 1890 19091906 1913 1916 1950 197519631919 2009
0k
750k
250k
150k
50k
550k
450k
350k
650k
1975WILD PUGET SOUND CHINOOK SALMON RUN SIZE
Puget Sound
Wild Chinook
Population
Logging 1881
First splash dam built for logging in Washington
Railroad 1870
Northern Pacific Railroad survey triggers land boom
Harbor Island finished 1909
Much of the Duwamish Estuary filled for industry
Population 1890
Seattle population 42,000
Population 1950
Seattle 465,000
Green River 1919
Private levee construction begins
throughout the river
Cedar River 1916
Diverted away from the Green River,
into Lake Washington
White River 1906
Diverted out of the Green River into the Puyallup River
201920161999
Natural spawners
Green River
Chinook salmon escapement
1803_8972a_Green_River_Salmon_Timeline_WRIA9.ai
WRIA 9 Chinook
salmon abundance goals:
1,000–4,200
27,000
returning natural origin
spawning adult fish by 2025
returning natural origin
spawning adults by 2055
Source: WDFW salmonid
stock inventory
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
1975198019851990199520002005201020152020Figure 1. Green/Duwamish and Central Puget Sound Chinook salmon recovery timeline.
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
15
lutionary significant unit (ESU). NOAA ESU recovery
criteria require status improvement in all populations
and two to four viable populations in each of the
sub-basins.
The Puget Sound Partnership (Partnership), the state
agency leading the region’s collective effort to restore
and protect Puget Sound, serves as the regional
salmon organization for the 15 lead entities within the
Puget Sound, advised by the Puget Sound Salmon
Recovery Council. The Partnership co-manages the
Puget Sound Acquisition and Restoration Fund and
works in partnership with the Governor’s Salmon
Recovery Office and Recreation and Conservation Of-
fice (RCO) on statewide salmon recovery issues. The
Salmon Recovery Funding Board, facilitated by the
RCO, is a Governor-appointed 10-person board with a
primary responsibility for making grants and loans for
salmon habitat projects and salmon recovery activ-
ities. This salmon recovery infrastructure, and the
grant and loans for habitat project implementation,
is supported through state and federal funds from
NOAA’s Pacific Coast Salmon Recovery Fund and the
State Salmon Recovery Funding. Additionally, within
Puget Sound, salmon recovery is supported by the
Puget Sound Acquisition and Restoration Fund.
WRIA 9 Organizational Structure
Water Resource Inventory Area (WRIA) 9 serves as
a lead entity for salmon recovery under the State
of Washington’s watershed-based framework for
salmon recovery established under RCW 77.85. It is
a watershed-based organization comprised of local,
state and federal partners, non-profit organizations,
business interests, and citizens. Per statute, WRIA
9 is mandated to “compile a list of habitat projects,
establish priorities for individual projects, define the
sequence for project implementation, and submit
these activities as the habitat project list. The com-
mittee shall also identify potential federal, state, local,
and private funding sources.”
The 17 local governments within the Green/Duwa-
mish and Central Puget Sound Watershed (WRIA
9) formalized a partnership under an interlocal
agreement (ILA) (WRIA 9 ILA) in 2000. The initial
ILA (2000–2005) funded a strategic, science-based
assessment of the watershed and a long-term, com-
prehensive recovery plan for the Green River Chinook
salmon population. Following approval of the 2005
Salmon Habitat Plan, the local government partners
forged a 10-year ILA from 2007–2017 intended to
guide plan implementation and adaptive manage-
ment. The ongoing commitment to watershed-based
salmon recovery was renewed in 2017. The current
ILA extends through 2025.
The WRIA 9 Watershed Ecosystem Forum (WEF)
serves as the advisory body for plan implementation
and adaptive management. It is comprised of elected
officials from the ILA partners and other watershed
stakeholders. The Management Committee serves as
the executive committee to the WEF. It directs work
plan development and manages the ILA budget.
The Implementation Technical Committee (ITC) is
a technical- and policy-focused subcommittee that
supports plan implementation and adaptive manage-
ment. The ITC defines monitoring and research prior-
ities, interprets new technical information as it relates
to salmon recovery, and provides science-based
recommendations to WEF.
Equity and Social Justice
Salmon recovery efforts within the Green/Duwa-
mish and Central Puget Sound watershed overlap
with numerous communities experiencing deeply
entrenched social, economic, and environmental
inequities. Race and place influence opportunity
and quality of life. People of color, immigrants, and
low-income residents experience inequities in access
to key determinants of equity – including access to
parks and natural resources. Although best available
science drives project identification and prioritization,
equity and social justice (ESJ) issues should be care-
fully considered. Applying an ESJ lens to habitat pro-
jects can help ensure salmon recovery efforts align
with ESJ initiatives and do not inadvertently reinforce
existing inequities. Integrating residents and commu-
nity-based organizations into project design can help
build community support and achieve multi-benefit
outcomes that advance equity in the watershed.
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
16
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
17
Chapter 2:
Green/Duwamish and Central Puget Sound Watershed
– A Snapshot
The Green/Duwamish and Central Puget Sound Wa-
tershed spans 575 square miles of diverse landscape,
ranging from an industrial waterfront to preserved old
growth forest. This section provides a high-level over-
view of the five subwatersheds (Upper Green, Middle
Green, Lower Green, Duwamish, and Nearshore) that
serve as an overarching framework for salmon
recovery. It also provides context for the strategies
and actions outlined in subsequent chapters. For
a more comprehensive review, please refer to the
Chapter 3 of the 2005 Salmon Habitat Plan.
The Upper Green Subwatershed extends up-
stream of Howard Hanson Dam, river mile 64.5, and
represents approximately 45 percent of the Green/
Duwamish River watershed. Historically, the Upper
Green provided important spawning and freshwater
rearing habitat for Chinook salmon. It encompasses
between 78-165 miles of suitable instream habitat,
although fish passage has been blocked by a combi-
nation of the Tacoma Headworks Diversion Dam and
Howard Hanson Dam since 1911.
Checkered ownership in the subwatershed compli-
cates coordinated land management. Although the
primary land use is commercial forestry, the Upper
Green also serves at the primary municipal water
supply for the City of Tacoma. Additionally, a road and
railroad alignment have constrained the river in plac-
es, the Upper Green Subwatershed is largely undevel-
oped and contains relatively high-quality, yet currently
inaccessible, aquatic habitat. Long-term recovery of
Chinook salmon depends on providing fish passage to
the Upper Watershed.
The Middle Green Subwatershed extends
between river miles 64.5 and 32. It includes the two
largest tributaries to the Green River – Soos and
Newaukum Creeks. Low-velocity habitats, including
off-channel habitats, sidechannels, floodplain
wetlands, and river edge, provide important rearing
and refuge habitat for juvenile Chinook.
Land use in the Middle Green is characterized pre-
dominantly by agricultural lands and rural residential
development. Land use development adjacent to river
and tributaries has resulted in loss of riparian habitat
contributing to elevated instream temperatures. Mod-
ified flow regimes have disrupted natural transport
of large wood and sediment. In addition, a network
of training levees designed to restrict lateral channel
migration – as opposed to prevent flooding – have
simplified channel complexity along some reaches.
Restoring floodplain connectivity and expanding rear-
ing habitat capacity are critical to increasing Chinook
salmon productivity.
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
18
The Lower Green River Subwatershed flows
from river mile 32 downstream to river mile 11. It
serves as an important migratory corridor for adult
upstream migration and juvenile downstream migra-
tion. Available rearing and high-flow refuge habitat is
limited compared to the Middle Green – many reach-
es currently lack large wood, side channels, sloughs,
and slow-water edge habitats. The Lower Green River
also supports Chinook salmon spawning upstream of
approximately river mile 25.
The Lower Green River valley is the second largest
warehouse and distribution center on the west coast.
The floodplain is heavily developed and character-
ized by a combination of industrial, commercial, and
urban residential development. The 1906 diversion
of the White River left the floodplain perched above
the mainstem channel and disconnected historic
off-channel habitats. An extensive network of flood
control facilities (27 miles of levees and revetments)
currently restricts floodplain connectivity and limits
channel complexity. A corresponding loss of riparian
tree canopy contributes to elevated instream temper-
atures. An integrated, multi-benefit approach to flood-
plain management is needed to balance fish habitat
needs with flood risk reduction and other community
priorities in this subwatershed.
The Duwamish Subwatershed extends from river
mile 11 at the Black River Pump Station downstream
to the north end of Harbor Island. The extent of salt
influence – as depicted by the saltwater wedge – var-
ies based on flows and tide, but can extend upstream
as far as the Foster Bridge (RM 10.2) during low flows
and high tides. Juvenile Chinook rear in the estuarine
waters of the Duwamish as they undergo the physio-
logical transition from fresh to saltwater habitats.
Extensive dredge and fill of the Duwamish has
transformed the estuary into an industrial waterway,
characterized by straightened channel with armored
banks and a lack of riparian tree canopy. More than
98 percent of the historical tidal wetlands have been
transformed into commercial and industrial land uses.
The U.S. Environmental Protection Agency declared
the Lower Duwamish Waterway a “Superfund” site
in 2001 due to legacy contamination, and clean-up
is not expected to be complete for another decade.
Sediment cleanup and restoration of estuarine habitat
are essential to increasing juvenile Chinook salmon
survival.
The Nearshore Subwatershed extends 92 line-
ar miles from Elliott Bay south to the Pierce County
boarder, including Vashon Island. It represents the
interface of upland and aquatic habitats; shallow
productive zone and deep water habitats; and fresh
and marine waters. The nearshore is a dynamic
environment – shaped by wave energy and sediment
transport that support high species diversity. A variety
of habitats, including beaches, eelgrass beds, and
pocket estuaries, provide important foraging habitat
and a migratory corridor to the Pacific Ocean for
juvenile Chinook salmon.
Development along the marine shorelines has altered
significant stretches of the nearshore ecosystem.
Approximately two-thirds of WRIA 9 shoreline is ar-
mored, which has disrupted natural sediment delivery
and transport. The intensity of shoreline development
varies substantially across the watershed. The highest
intensity development is located along the industrial
and commercial shores of Elliott Bay. The mainland
shoreline from Seattle south to Federal Way is pre-
dominantly residential. Vashon Island is predominant-
ly rural. Improving nearshore habitat is essential to
increasing juvenile salmon residence times, growth
rates, and overall marine survival.
AGENDA ITEM #6. e)
HowardHansonDam
Tacoma HeadworksDiversion Dam
Smay CrSunday CrJenkins Cr.Snow CrSawmill CrMiller CrMill CrTwin Ca
m
p
C
rChampion CrTacom
a
Cr
Gale Cr
LakeSawyer
Deep CrCoal CrBear CrNewauku m C r
Newauku m C r
Charley C r
N. Fork Green RiverLi
t
t
l
e
Soo
s
C
r
Duwa
m
ish River
Green RiverRavensdaleCr.Big Soo
s
C
r
Lake
Youngs
Puget
Sound
Elliott
Bay
HowardHansonReservoir
SEATTLE
Seattle
KENT
VashonIsland
Maury
Island
RENTON
SEATAC
AUBURN
ALGONA
AUBURN
FEDERAL WAY
BURIEN TUKWILA
COVINGTON
DESMOINES
ENUMCLAW
MAPLEVALLEY
BLACKDIAMOND
NORMANDYPARK
405
509
518
167
99
99
18
99
5
5
5
UPPER GREEN RIVER
SUBWATERSHED
MIDDLE GREEN RIVER
SUBWATERSHED
LOWER
GREEN RIVER
SUBWATERSHED
MARINE
NEARSHORE
SUBWATERSHED
DUWAMISH
ESTUARY
SUBWATERSHED
LOCATION MAP
WRIA 4WRIA 5
WRIA 8
WRIA 10
WRIA 6
WRIA 15
WRIA 11
WRIA 23
WRIA 38
WRIA17
WRIA 26
WRIA 39
WRIA 12
WRIA45
WRIA 7
WRIA 9
13
KingCountyKingCounty
SnohomishCountySnohomishCounty
PierceCountyPierceCounty
King County Data Sources:King County Datasets: TopoWRIA, (RIVER MILES), CityKC, Wtrbdy, Wtrcrs, TNET, Tribal_lands, Urban_growth, and KC BNDRY.
Note:The use of the information in this map is subject to the terms and conditions found at: www.kingcounty.gov/services/gis/Maps/terms-of-use.aspx. Your access and use is conditioned on your acceptance of these terms and conditions.
Produced by:
King County IT Design and Civic Engagement
Figure 2
Green/Duwamish and
Central Puget Sound
Watershed
River Mile
River/creek
Major Road
Urban Growth Area Line
WRIA 9 Subwatershed Boundary
WRIA 9 Boundary
Open Water
King County Boundary
Muckleshoot Tribal Lands
VC File: smb://wlrbafs1.dnrp.kingcounty.lcl/vc/cart/Finished/REGIONS/WRIA9/2010_10202L_W9SHP_W9whsdMap.ai LPRE
GIS File:Q:\20009\WRIA9_Watershed.mxd KLINKAT
0 2 4 61
Miles
October 2020
N
0 5 10
Miles
AGENDA ITEM #6. e)
Smay CrSunday CrJenkins CrJenkins CrSnow
C
r
Sawmill CrMiller CrMiller CrMill CrMill CrTwin Ca
m
p
C
rChampion CrTacom
a
Cr
Gale CrGale Cr
LakeSawyer
LakeSawyer
Deep CrDeep CrCoal CrCoal CrBear CrBear CrNewauku m C r
Newauku m C r
Charley C rCharley C r
N. Fork Green River
N. Fork Green RiverLi
t
t
l
e
Soo
s
C
rLi
t
t
l
e
Soo
s
C
r
Duwa
m
ish River
Green RiverCovington Cr
Covington CrBig Soo
s
C
r
Lake
Youngs
Lake
Youngs
Puget
Sound
Elliott
Bay
HowardHansonReservoir
HowardHansonReservoir
NameName
SEATTLE
SEATTLE
KENT
Vashon
Island
Maury Island
RENTON
SEATAC
AUBURN
ALGONA
AUBURN
FEDERAL WAY
BURIEN TUKWILA
COVINGTON
DESMOINES
ENUMCLAW
MAPLEVALLEY
BLACKDIAMOND
NORMANDYPARK
NAME
405
509
518
167
99
99
18
99
5
5
5
King County Data Sources:Similar land use designations were combined and derived from King County GIS Center land use coverage LANDUSE_KC_CONSOL_20 based on multi-jurisdictional zoning data. Other King County datasets include TopoWRIA, (RIVER MILES), CityKC, Wtrbdy, Wtrcrs, TNET, Tribal_lands, Urban_growth, and KC BNDRY.
Note:The use of the information in this map is subject to the terms and conditions found at: www.kingcounty.gov/services/gis/Maps/terms-of-use.aspx. Your access and use is conditioned on your acceptance of these terms and conditions.
Figure 3
Land Use Designations
Green/Duwamish and
Central Puget Sound Watershed
LAND USE CATEGORIES
Produced by:
King County IT Design and Civic Engagement
KCIT DCE File: smb://wlrbafs1.dnrp.kingcounty.lcl/vc/cart/Finished/REGIONS/WRIA9/2102_10202L_W9SHP_W9_LANDUSEmap.ai LPRE
GIS Data:Q:\20009\WRIA9_Watershed.mxd KLINKAT
0 2 4 61
Miles
October 2020
N
OTHER SYMBOLS
Incorporated Area Name
River/Creek
Major Road
Urban Growth Area Line
WRIA 9 Boundary
Open Water and Name
King County Boundary
Tribal Lands
Industrial
Commercial
Mixed Use
Residential
Rural Residential
Agricultural
Public Lands
Forest
Parks, Open Space or Golf Course
Mineral Resource Lands
Aviation/Transportation
Undesignated
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
23
October, between approximately river miles 25 and
61. Spawning primarily occurs within the Lower
and Middle Mainstem Green River and Newaukum
Creeks. Additional spawning occurs in Soos, Burns
and Covington Creeks. Fish passage to the upper
watershed has been blocked by a combination of the
Tacoma Headworks Diversion Dam (1911) and Howard
Hanson Dam (1961). Although fish passage was
provided at the Tacoma facility in 2007, a downstream
fish passage facility has not been completed at
Howard Hanson Dam. The dams also block natural
gravel delivery and transport; however, available
spawning habitat does not appear to be a limiting
factor in Chinook recovery.
Egg Incubation/Emergence
Egg incubation and alevin emergence generally
occurs September through January within the same
reaches where spawning occurs. Timing is variable
and influenced by water temperatures – warmer
temperatures drive an earlier emergence. High-
flow events and sedimentation during this critical
development period can scour redds and result
in high mortality. As a result, flow management
at Howard Hanson Dam influences incubation/
emergence success.
The Green/Duwamish and Central Puget Sound
Chinook salmon life cycle provides a common thread
linking together a diverse watershed. Each of the five
distinct subwatersheds plays a critical role in the Chi-
nook salmon life cycle. Recovery of a viable salmon
population hinges on collective action across the
watershed to improve aquatic habitat. The concep-
tual life cycle model presented in the 2005 Salmon
Habitat Plan remains an important tool for assess-
ing aquatic habitat needs in relationship to priority
stressors that adversely impact survival at distinct life
history stages and across different life history types.
Understanding aquatic habitat needs throughout the
life cycle and how they relate observed bottlenecks
in survival allows recovery managers to strategically
focus limited resources where they are expected to
provide the largest benefit to recovery objectives.
Figure 5 highlights the relationship between the sub-
watersheds and specific life history phases.
Adult Upstream Migration/Spawning
Chinook salmon enter the Green/Duwamish between
July and October. Timing of river entry and upstream
migration is impacted by water temperature and flow.
Spawning generally occurs mid-September through
Chapter 3:
The Chinook Salmon Life Cycle –
Connecting a Diverse Watershed
CHRIS GREGERSON
AGENDA ITEM #6. e)
The Salmon Cycle
Spawning Incubation
and emergence
Stream
rearing
Downstream
migration
Adult
Migration
Migration
To Puget Sound
Maturation
(Marine
waters)
Nearshore
Foraging Estuary
rearing
DUWAMISH ESTUARY
SUBWATERSHED
DUWAMISH ESTUARY
SUBWATERSHED
LOWER/MIDDLE GREEN RIVER SUBWATERSHEDS
MARINE NEARSHORE
SUBWATERSHED/OFFSHORE
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
24
Juvenile Freshwater Rearing/Migration
Juvenile Chinook salmon rear in the Lower and
Middle Green subwatershed from mid-December
to mid-July. The length of the freshwater rearing
period varies among life history types (Figure 5)
and is influenced by habitat availability and flows.
Subyearling Chinook rely on low-velocity habitats,
including mainstem river margins, pools, and off-
channel habitats. Rearing habitat availability is a
limiting factor for Chinook productivity. Extensive
flood control facilities and floodplain development
have disconnected floodplain habitats, reduced
habitat complexity, and eliminated much of the
historic freshwater rearing habitat. Instream flows
influence accessibility of off-channel rearing habitats.
During low-flow periods, off-channel habitats and
floodplain wetlands may become disconnected from
the mainstem. In contrast, high-flow events may flush
juvenile Chinook downstream if they are unable to
access suitable refuge habitat. Given the connection
to instream flows, flow management at Howard
Hanson Dam can impact habitat connectivity/
availability during the rearing period.
Juvenile Estuary Rearing
Subyearlying Chinook salmon generally migrate
downstream into the Duwamish estuary between
February and July, with fry-type life histories predom-
inantly entering earlier in the year (Feb-Mar) than
parr (May-Jun). Residence times in the Duwamish
vary considerably, with some fish spending days and
others (i.e., estuarine reared fry) spending weeks to
months in the estuary. The Duwamish Estuary –
specifically the transition zone (RM 1-9) – is critical for
juvenile salmon making the physiological transition
from fresh to salt water. Juvenile Chinook salmon rely
on shallow, low gradient habitats (e.g., marshes, mud-
flats, and tidal sloughs) to escape stronger currents
and support efficient foraging and growth prior to en-
tering Puget Sound. Extensive industrial development
along the Duwamish has transformed the estuary to
an industrial waterway, resulting in extensive loss
of slow water rearing habitats and contamination
of sediments. The lack of high-quality habitat may
contribute to accelerated downstream migration and
reduced survival upon entry into Puget Sound.
Figure 4. The Salmon Cycle
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
25
(Ja n -Ju n ) (Jan-D ec-Jun) FRY (Jan-Apr)
FRY (Jan-Apr)
FRY
FRY (days)
F
RY (Jan-Apr)
S M O LT
(w e e k s )?
SMOLT
(days) ?
S M O L T
(w e e k s )
FR Y YEA RLINGPARR
(d a y s )
(t o m o n t h s )
(weeks to months)
(to weeks) ?
(days) ?
(40 mm)
RIVER
Yearling
RARE
(>105 mm)
Middle Green Parr
COMMON
(70-95 mm)
Lower Green Parr
LESS COMMON
(70-95 mm)
Estuarine Reared Fry
COMMON
(70-95 mm)
Marine Direct Fry
LESS COMMON
(40-50 mm)
PUGET SOUNDDUWAMISHLOWER GREEN
P A R R MIDDLE GREEN
(d a y s t o w e eks)
Green/Duwamish
River Chinook Juvenile
Rearing Trajectories
Green/Duwamish
River Chinook Juvenile
Rearing Trajectories
Figure 5. Primary Chinook salmon life history types in the Green River (updated and modified from
Ruggerone and Weitkamp 2004).
The most intense shoreline modifications are located
in urbanized Elliott Bay, with more natural shorelines
located along the largely rural Vashon Island.
Ocean Migration
By fall, most Green River Chinook exit the Strait of
Juan de Fuca and migrate north along the outer coast
of Vancouver Island. While Chinook salmon may
spend up to five years in marine waters, most Green
River Chinook spend two to three years at sea before
returning to spawn. In addition to predators, Chinook
salmon are subject to various commercial fisheries
during their marine migration.
Marine Nearshore Rearing
Juvenile Chinook salmon generally rear in the Puget
Sound nearshore from later winter through fall. Shal-
low nearshore habitats support foraging, growth, and
refuge from predators, while also providing a migra-
tory corridor to offshore waters. Although considera-
ble uncertainty surrounds marine nearshore habitat
use by juvenile Chinook salmon, it is widely accepted
that the early marine rearing period is a critical period
of growth that strongly influences long-term survival.
The Central Puget Sound marine nearshore waters
not only support Green River Chinook, but also at
least eight different stocks of Puget Sound Chinook
salmon. Shoreline development has extensively
modified nearshore habitat and processes in WRIA 9.
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
26
AGENDA ITEM #6. e)
ROGER TABOR
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
27
Recovery goals provide a framework from which to
evaluate both plan implementation and overall pro-
gress towards Chinook recovery. Tracking population
metrics and habitat conditions provides important
data used to evaluate current population status and
overall habitat conditions. This information serves as
a key input for informing ongoing adaptive manage-
ment.
Viable Salmon Population Criteria – Current Status and Goals
The Viable Salmon Population1 (VSP) concept – as
defined by National Oceanic and Atmospheric
Administration (NOAA) National Marine Fisheries
Service (NMFS) – provides the foundation for all
established recovery goals for Chinook salmon within
the Green/Duwamish and Central Puget Sound
Watershed. NMFS defines a viable salmon population
as a population that has a negligible risk of extinction
due to threats from demographic variation, local en-
vironmental variation, and genetic diversity changes
over a 100-year timeframe (McElhany et al. 2000). The
VSP goals outlined in this section remain unchanged
from the 2005 Plan and are presented in Table 1. They
1 NOAA technical Memorandum NMFS-NWSSC-42:
Viable salmonid populations and the recovery of evo-
lutionarily significant units.
are based on recovery planning targets developed by
a team of scientists (Puget Sound Technical Recovery
Team) appointed by NOAA to support the original
2007 Recovery Plan for Puget Sound Chinook.
Four parameters are used to assess the viability of
salmon populations: abundance, productivity, spatial
structure and diversity. These parameters are rea-
sonable predictors of extinction risk, reflect general
processes important to all salmon populations, and
measurable over time.
Abundance
Abundance is the number of individuals in the pop-
ulation at a given life stage or time. The number of
natural origin Green River Chinook spawners is the
primary abundance indicator. Chinook abundance
indicates an overall decline since before the first plan
was adopted in 2005 (Figure 6 and Table 1). In 2009,
the number of Natural Origin Spawners (NOS) was
the lowest ever recorded, with less than 200 fish. For
five of the past 10 years (2010–2019), the number of
NOS has been below the planning target range (1,000
-4,200 NOS) for WRIA 9.
Chapter 4:
Current Population Status and Recovery Goals
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
28
Table 1. Viable Salmon Population (VSP) Goals
VSP
Parameter Indicator
2006-2010
(average)
2011-2015
(average)
2016-2019
(average)
10-Year
Goal
50-100
Year Goal
Abundance Natural Origin
Spawners
1975
(average)
963
(average)
2041
(average)1000-42002 27,000
Productivity Egg-to-Migrant
Survival 2.9%8.7%5.3%a >8%>8%
Diversity
Percent Hatchery
Origin 56.4%60.6%68.2%Decreasing <30%
Proportion 5-6 yr-
old Spawners 19.2 9.6%N/A Increasing >15%
Relative
Abundance of Parr 46%30.6%32.8%a No Target3 No Target
Spatial Diversity Spawning
Distribution
Spawning in Green River mainstem
(below Howard Hanson Dam),
Newaukum Creek and Soos Creek
Spawning
above
Howard
Hanson
Dam
Maintain
spawning
distribution
Data Source: WDFW Salmonid Stock Inventory and NOAA Salmon Population Summary Database
a2016-2018
2 A range is used because the productivity of each year’s run varies depending on a variety of factors. If fish are expe-
riencing high productivity, fewer adults are needed to reach future targets than if they are experiencing low productivity,
which would require more fish returning to reach future targets.
3 No target established because it is not considered a reliable metric of diversity. However, relative abundance of fry and
parr does provide important information for projecting future abundance.
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
29
Figure 6. Green River Chinook salmon escapement.
Data Source: WDFW Salmonid Stock Inventory and NOAA Salmon Population Summary Database.
Productivity
Productivity or population growth rate is the ratio
of abundance in the next generation as compared
to current abundance. The WRIA uses WDFW data
to track egg-to-migrant survival rates as a primary
means of evaluating productivity (WRIA 9 ITC 2012).
Egg-to-migrant survival rate is defined as the pro-
portion of fertilized eggs that survive to migrate as
fry or parr into the Lower Green, as quantified by the
Washington Department of Fish and Wildlife (WDFW)
smolt trap at river mile 34. Although, the average rate
for wild Chinook populations is 10.4 percent (Quinn
2005), the WRIA set a target of 8 percent because the
elevated proportion of hatchery fish on the spawning
grounds is assumed to reduce reproductive fitness
(see VSP diversity metric below). Between 2006 and
2018, the survival rate has ranged from 0.09 percent
to 11 percent, with an average of 5.7 percent (Table 1).
While the long-term average is below the target, the
egg-to-migrant survival rate has exceeded the
8 percent target in five of the last 10 years of data.
VSP-Spatial Structure
The WRIA has not directly tracked a specific indicator
or metric for spatial structure. However, natural origin
adults predominantly spawn in Newaukum Creek
and the mainstem Green River. Recent changes to
hatchery operations will maintain the area in Soos
Creek above the weir as a natural production empha-
sis area with only natural-origin adults passed above
the weir. Adult Chinook will not be passed upstream
of Howard Hanson Dam (HHD) in order to access
the upper watershed until downstream fish passage
is provided at HHD. A 2019 Biological Opinion (BiOp)
issued by the National Oceanic and Atmospheric
Administration (NOAA) found that the construction of
a downstream fish passage facility at HHD was nec-
essary for the recovery of Chinook salmon, steelhead,
and Southern resident orcas. It sets a 2030 deadline
for construction and operation of a downstream
fish passage facility. For the spatial structure of the
population to improve, natural origin spawners are
needed within both of these areas that were part of
their historic range.
0
2,000
4,000
6,000
8,000
10,000
12,000
1990 1995 2000 2005 2010 2015 2020NUMBER OF SPAWNERSTotal spawners Natural origin 10-Yr. VSP goal (range)
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
30
VSP-Diversity
Diversity is the variety of life histories, sizes, and
other characteristics expressed by individuals within
a population. WRIA 9 has used three metrics to mea-
sure diversity:
• Percentage of hatchery origin spawners. The target
is for fewer than 30 percent hatchery origin
Chinook spawners (HSRG 2004). The target has not
been met since 2002, and since plan adoption in
2005, the proportion of hatchery fish on the spawn-
ing grounds has ranged from 35 percent to 75 per-
cent and has appeared to be increasing (Table 1);
• Percentage of juvenile Chinook that outmigrate
as parr. Based on recent analyses, this indicator is
influenced by basic habitat capacity, the number
of natural origin spawners, and the streamflows
experienced during rearing (Anderson and Topping
2018). As such, tracking the percentage of parr is
no longer recommended as a reliable metric for
evaluating diversity of the population. However, the
metric does continue to provides important popula-
tion-level information related to productivity; and
• Proportion of natural origin adults that return as
five- and six-year old fish, with a simple target of
an increasing percentage of older fish returning
over time. Since 2005, there have been no six-year
old fish, thus monitoring data reflect only five-year
old Chinook. Excluding 2009, which was an outlier
year with the lowest return of adults on record, the
proportion of five-year olds has ranged from a high
of 17 percent to a low of 1 percent (Table 1). The
average percent return from 2006 to 2015, 14.4 per-
cent, is similar to the average over the last 46 years
of 15.4 percent.
Habitat Goals – Implementation Targets
Habitat goals outline both the necessary future
ecological conditions to support a viable salmon
population and shorter term implementation targets
designed to assess plan implementation progress.
WRIA 9 developed goals for key ecological indicators
that reflect priority habitat needs and environmental
stressors that span all life stages of Chinook
salmon – adult migration, spawning, incubation and
emergence, stream rearing, downstream migration,
estuary rearing, and nearshore foraging. The
indicators and associated goals presented in Table
2 are organized by subwatershed. This Plan Update
does not outline specific goals related to marine
migration outside of WRIA 9 boundaries.
WRIA 9 developed long-term goals – or necessary
future conditions – during the development of the
2005 plan using scientific guidance developed by
the Puget Sound Technical Recovery Team. The 2004
WRIA 9 Strategic Assessment and 2005 Salmon Hab-
itat Plan summarize the full suite of necessary future
conditions to support a viable salmon population in
the Green/Duwamish and Central Puget Sound Wa-
tershed. They were not amended as part of this Plan
Update. The subset of necessary future conditions
outlined in Table 2 represents a strategic subset that
can be readily assessed related to project implemen-
tation across shorter intervals of time.
Table 2 also outlines updated short term – 10 year
– habitat targets used to directly track plan imple-
mentation. The 10-year targets were developed by
the WRIA 9 Implementation Technical Committee
based on a review priority stressors, limiting factors,
implementation progress under the 2005 Plan, and a
review of common indicators proposed for regional
tracking by the Puget Sound Partnership. Specific
targets are intended to be aspirational and reflect the
significant level of investment needed to substantive-
ly advance recovery within the watershed. The Mon-
itoring and Adaptive Management chapter summa-
rizes recommended methodology and timelines for
periodic assessments of these and other longer-term
status and trends indicators (e.g., water temperature,
contamination).
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
31
Table 2. Green/Duwamish and Central Puget Sound Habitat Goals.
Necessary Future Conditions and Implementation Targets
Habitat Indicator
Necessary Future
Cond. (2005 Plan)
10-year Target
2005 Plan
(achieved)Current Condition
Recommended 10-year
Target (2030)
Marine Nearshore
Shoreline Armor 65% of shoreline in
natural condition
Restore 13,500 ft of
shoreline (1500 ft
restored – net gain
of 70 ft of armor).
36%/33 mi of
shoreline in natural
condition
Remove 3,000 ft of hard
armor and achieve a net
reduction in hard armor.
Marine Riparian
Vegetation
65% of marine
shoreline
characterized by
riparian tree cover.
No target developed 40%/36 mi of
shoreline has
riparian tree cover
Revegetate 60 ac and/or
3.25 mi (~3.5% gain) of
shoreline.
Shoreline
Conservation
Not applicable Protect 5 mi of
shoreline. (4 mi
protected).
9.5 mi of adjacent
upland protected
as natural lands
Acquire 2 mi of shoreline
for permanent protection,
prioritizing beaches and
feeder bluffs.
Duwamish
Shallow Water
Habitat
173 ac of shallow
water habitat in the
transition zone (RM
1-10) (30% of historic)
Restore 26.5 ac
of shallow water
habitat (~6 ac
restored)
Unknown Create 40 ac of shallow
water habitat between
RM 1-10.
Riparian Forest 65% of each bank of
the river has > 165 ft
of riparian tree cover-
age (586 ac total)
No target was
developed
69 ac/12% of 165 ft
buffer contains tree
cover
Revegetate 170 ac (~29%
of 165-ft buffer)/9.8 mi of
streambank.
Lower Green
Off-Channel Habitat 45% of historical
off-channel habitat.
Restore 2.8 mi of side
channels, 450 ac of
floodplain wetlands,
and 5,039 ac of
connected 100-yr
floodplain habitat
(total of 8,839 ac of
connected 100-yr
floodplain).
Restore 16.5 ac of
reconnected
off-channel and
riparian habitat
(20.7 ac restored)
3,800 ac of
connected 100-yr
floodplain that
is accessible to
juvenile fish
Restore 240 ac of
floodplain habitat.
Side Channels:
550-ft high flow/
3,740-ft low flow
Floodplain Tributaries:
3,080 ft
Backwater: 75 ac
Floodplain Wetland:
66 ac
Other 100-yr Floodplain:
99 ac
Riparian Forest 75% of each bank
of the river to
>165 ft wide (828 ac
total)
No target was
developed
222 ac/27% of
165-ft buffer
contains tree cover
Revegetate 250 ac
(~30% of 165-ft buffer)/
8.52 mi of high-priority,
unforested shoreline
(continued on next page)
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
32
Necessary Future Conditions and Implementation Targets, continued
Habitat Indicator
Necessary Future
Cond. (2005 Plan)
10-year Target
2005 Plan
(achieved)Current Condition
Recommended 10-year
Target (2030)
Lower Green, continued
Large woody debris 1,705 pieces per mi
(21 key pieces)
No target developed.2004: 54 pieces/
mi.
2014: 48.5 pieces/
mi.
Achieve 425 pieces/mi.
Bank armor No new, decreasing
amount
No new, decreasing
amount
2014: 42 mi of
river bank armored
(17.7-mi levees;
9.8 mi maintained
revetments; 14.5 mi
of semi-armored
roads acting like
levees and natural
banks)
Set back 1 mi of levee.
Middle Green
Floodplain
connectivity/lateral
channel migration
Floodplain subject
to lateral channel
migration represents
65% of historical
conditions
Restoration of
50 ac of off-channel
habitat and riparian
vegetation (45 ac
restored)
2017: 1,751 ac or
55% of historic
floodplain
connected
Reconnect 200 ac of
floodplain as measured
by area subject to lateral
channel migration.
Riparian forest > 65% of Channel
Migration Zone (1,424
of 2,190 ac) and up
to 165 ft wide where
possible
No target developed 2005: 50.3%
2009: 50.5% of the
Channel Migration
Zone forested
Revegetate 175 ac (8% of
Channel Migration Zone).
Large wood debris 10 jams/mi No target developed 2006: 2.2 jams/mi
2015: 3.8 jams/mi
Achieve 5 jams/mi.
Bank armor No new, decreasing
amount
No new,
decreasing amount
(>1% reduction)
2004: 25%
armored
2009: 24%
armored
Set back 1 mi of revetment/
levee.
Upper Green
Fish passage Up and downstream
fish passage at
Howard Hanson Dam
Fish passage
provided (upstream
passage provided)
Upstream passage
facility complete.
Downstream
passage not
complete.
Provide downstream
passage at Howard Hanson
Dam.
Bank armor No new, decreasing
amount
No new, decreasing
amount
2004: 15% armored
2009: 15% armored
Remove/setback 0.5 mi of
bank armoring.
Table 2. Green/Duwamish and Central Puget Sound Habitat Goals. (Continued)
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
33
Chapter 5:
Strategic Assessment Update -
New Science on Priority Pressures
The 2005 Strategic Assessment provided the scien-
tific foundation for the Salmon Habitat Plan. Although
the majority of science remains relevant today, new
research findings have refined our understanding of
priority pressures and limiting factors related to Viable
Salmon Population (VSP) criteria. The 2005 Strategic
Assessment evaluated functional linkages between
priority pressures; habitat conditions; and Chinook
abundance, diversity, productivity and spatial struc-
ture. The functional linkages were used to create a
series of conservation hypotheses that outlined how
improvements in habitat conditions and natural pro-
cesses will drive changes in VSP parameters.
From 2017-2018, WRIA 9 produced a series of white
papers as addendums to summarize new research
and address priority data gaps in the original 2005
Strategic Assessment. White papers included Fish
Habitat Use & Productivity (Higgins 2017); Water
Temperature (Kubo 2017); Contamination (Colton
2018); and Climate Change (Engel, Higgins and
Ostergaard 2017). This chapter provides a summary of
the highlights of those papers as they relate to priority
pressures impacting Chinook salmon in the Green/
Duwamish Watershed. These refinements in our
understanding of priority pressures informed both the
recovery strategies presented in Chapter 6 and the
prioritization of capital projects in Chapter 7.
Priority Pressures (Basin of Focus)
Addressing priority habitat stressors is critical to
restoring a viable salmon population in the Green/
Duwamish and Central Puget Sound Watershed. The
following stressors have clear functional linkages
to one or more VSP parameters (abundance, pro-
ductivity, diversity, and spatial structure). Applicable
research and monitoring information is highlighted to
reflect new research and best available science since
the 2005 Plan.
Altered Instream Flows
(Middle Green, Lower Green)
Watershed Status
Operations at Howard Hanson Dam (HHD) and the
Tacoma Headworks diversion dam regulate instream
flows within the mainstem Green River below river
mile 64.5. Water storage, diversion, and release are
jointly managed by the U.S. Army Corps and Taco-
ma Water utility. Although flood risk reduction is the
primary mission of HHD, water storage also supports
Tacoma municipal and industrial uses, and fish con-
servation uses. In 2007, Tacoma Water’s Additional
Water Storage Project provided capacity to store an
addition 20,000 acre-feet (ac-ft) for municipal use.
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
34
Figure 7. Howard Hanson Dam spring water storage and allocation.
Water capture and storage generally occur between
late February and June 1. Figure 7 depicts how a
spring water storage target of 49,000 ac-ft is legally
allocated between municipal and fish conservation
uses. Phase 2 of the Additional Water Storage Project
(to be completed at a later date following down-
stream fish passage) would raise the conservation
pool to 1,177 feet and store an additional 12,000 ac-ft
of water. The U.S. Army Corps convenes a bi-weekly
Green River Flows Management Coordination Com-
mittee to inform water capture and a subsequent
flow augmentation period that extends from July 15 to
November depending on fall rainfall. Augmentation of
flows is intended to support Chinook salmon migra-
tion and spawning, maximize summer rearing habitat,
and minimize dewatering of steelhead redds. Lim-
ited Fish Conservation and Ecosystem Restoration
allotments frequently require tradeoffs among these
ecological benefits – especially in dry and/or warm
years with low snowpack. The Tacoma Water Habitat
Conservation Plan establishes a minimum stream
flow of 225 cubic feet per second (cfs) at the Auburn
Source: United States Army Corps of Engineers, Seattle District.
gauge. During the summer of 2015, the minimum flow
at the Auburn gauge reached 226 cfs.
Although flows are not regulated in tributaries, in-
streams flows are impacted by stream withdrawals
and groundwater wells used to support residential
and agricultural uses. In 2018, the Washington Leg-
islature passed the Streamflow Restoration Law to
offset the impacts of future permit exempt domestic
groundwater withdrawals and help restore instream
flows. The law was in response to a 2017 Washington
State Supreme Court decision (Hirst Decision) that
restricted building permits for new residential homes
that would be reliant on permit-exempt wells. The
legislature appropriated $300 million over 15 years
to support implementation of projects to improve
stream flows across the state. The Washington State
Department of Ecology is developing a Watershed
Restoration and Enhancement Plan to identify and
prioritize water offset projects in WRIA 9.
HOWARD
HANSON DAM
PROBABLE MAXIMUM FLOOD - 180,000 ac-ft
AUTHORIZED FLOOD CONTROL - 104,000 ac-ft
FISH CONSERVATION - 24,000 ac-ft
TURBIDITY POOL - 600 ac-ft
48-in. bypass pipeinvert elev. 1,069 ft
MUNICIPAL & INDUSTRIAL AWSP - 20,000 ac-ft
Dam crest
elev. 1,228 ft ELEVATION
1,224 ft
1,206 ft
1,167 ft
1,147 ft
1,141 ft
1,075 ft
1,035 ft
ECOSYSTEM RESTORATION SECTION , ac-ft
Spillway invert elev. 1,176 ft
19-ft outlet tunnel invert elev. 1,035 ft
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
35
Research/Monitoring
Flow management at HHD dictates instream habitat
conditions within the mainstem Green River. As a
result, water storage and subsequent release timing
not only impacts natural hydraulic processes, but
also influences available salmon habitat and produc-
tivity. Maintaining minimum instream flows of 250
cfs during dry summer months provides important
benefits to available fish habitat. However, associated
water capture and storage has reduced the frequency
and magnitude of high – habitat forming – flows while
prolonging the duration of moderate flows (Higgins
2017). Moderate flows between 5000-8000 cfs are not
sufficient to drive process-based habitat formation,
but do have the potential to scour redds (R2 Re -
source Consultants 2014).
Climate Change (Watershed-wide)
Watershed Status
Climate change science was not incorporated into
the 2005 Plan because future climate scenarios were
unclear. However, climate change has been the focus
of intense research, both global and regional, over
the last decades. This research highlights the need to
prepare for the current and future impacts of climate
change and incorporate what we know about climate
change into salmon recovery actions.
Climate change will directly impact salmon recov-
ery work in the Green/Duwamish and Central Puget
Sound watershed. The UW Climate Impacts Group
(Mauger et al. 2015) and others predict that Pacific
Northwest precipitation patterns will change, bring-
ing warmer, wetter falls, winters, and springs. Floods
will be more intense and more frequent, with peak
flows expected to increase by 28-34 percent by 2080.
As winters become warmer and wetter, the water-
shed is projected to shift from mixed rain and snow
to a rain-dominated basin with less mountain snow
melting earlier in the spring. The decrease in amount
and earlier disappearance of the snow pack will
exacerbate drought-like summer low flow conditions
in currently snow-dominated areas of the watershed.
Summertime rain is expected to decrease by ~22%
by 2050. A projected 4-5°F increase in air tempera-
tures will increase water temperature in both rivers
and the ocean. Nearshore and estuary areas will be
impacted by sea level rise, food web alteration and
ocean acidification. A changing climate will exacer-
bate typical climate variability, causing environmental
conditions that will negatively impact our salmonids
and their habitat. The potential impacts to various life
histories of salmonids, including Chinook salmon, as
a result of climate change are summarized in
Figure 8.
Flows above 8,800 cfs are needed
to initiate lateral channel migration
and support creation of off-channel
habitats that are critical for juvenile
Chinook rearing (Konrad et al. 2011).
Long-term juvenile Chinook outmigration data col-
lected by WDFW highlights the function relationship
between instream flows and Chinook productivity
(Anderson and Topping 2018). High flows (between
~8,000–10,000 cfs) from November through mid-Jan-
uary appear to scour eggs, sharply reducing the
overall productivity of the number of juveniles per
spawner. High flows (~6,000-8,000 cfs) during the
typical fry outmigration period (mid-January through
the end of March) reduce the number of parr pro-
duced in the Middle Green, likely because fish are
flushed into habitats downstream of the trap. The
frequency of spring flows (April through June) above
1,200 cfs appears to increase the number of parr
produced. This is likely due to increased connectivity
to off-channel habitats, like side-channels. A separate
study (R2 Resource Consultants 2013) showed that, at
flows below 1,200 cfs, side channel habitats become
less connected to the mainstem and overall habitat
complexity decreases.
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
36
Figure 8. Projected impacts to Green/Duwamish and Central Puget Sound salmon as a result of climate change.
Adapted from Beechie et al. (2012). Fish timing represents typical fish behavior.
Pink
Year 3Year 1 Year 2
Subyearling
Yearling
Climate Change Impacts on WRIA 9 Salmonids
Chinook
Coho
Chum
Steelhead
Spawn
Incubate
Rearing
Spawn
Smolt Smolt
Smolt
Rearing
Spawn
Incubate
Rearing
Smolt
Spawn
Incubate
Smolt
Rearing
Spawn
Incubate
1-2 Year Rearing
Smolt
Spawn
Incubate
Smolt
Rearing
2010_W9climate_sh_impacts.aiIncreased summer temperature may decrease growth or kill juvenile salmon where temperatures are already high and block/delay migration. May also decrease spawning fecundity (e.g. Chinook).
Decreased summer low flow may contribute to increased tempera-ture, decrease rearing habitat capacity for juvenile salmonids, and decrease access to or availability of spawning areas.
Increased winter floods may increase scour of eggs, or increase mortaility of rearing juveniles where flood refugia are not available, displace juveniles to less desira ble habitats.
Loss of spring snowmelt may
decrease or eliminate spawning
opportunities for steelhead, may
alter survival of eggs or emergent
fry for other salmonid species,
cause early dewatering of o-
channel and side channel habitats,
and reduce connectivity to the
floodplain.
Incubate
River entry
River entry
River entry
River entry
River entry
River entry
Jun.Jul.Aug.Jan.Feb.Mar. Apr. Jun.Jul.MaySept.Dec.Nov.Oct.Aug.Jan.Feb.Mar. Apr. Jun.Jul.MaySept.Dec.Nov.Oct.Aug.Ocean3-5 Years3-5 Years1-2 Years2-4 Years2-4 Years1-2 YearsOceanOceanOceanPuget Sound/OceanOceanOceanAGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
37
NATURAL SHORELINE
Current sea level
ARMORED SHORELINE
Current sea level
ARMORED SHORELINE
Future sea level
NATURAL SHORELINE
Future sea level
Forage fish
spawning habitat
Forage fish spawning
habitat migrates with
beach translation.
Forage fish
spawning habitat
Forage fish spawning
habitat entirely lost due to
armor and sea level rise
Future MHHW
Current MHHW
Former MHHW
Current MHHW
Future MHHW
Former MHHW
The Coastal Squeeze
Former
shoreline edge
Water temperatures as measured
on July 4, 2015, exceeded the
potential lethally threshold (22°C) for
salmonids downstream of the Green
River Gorge (DeGasperi 2017).
Research/Monitoring
A changing climate will exacerbate typical climate
variability causing environmental conditions that will
negatively impact our salmonids and their habitat.
The summer of 2015 likely provided a glimpse of the
future ecological conditions in the Green/Duwamish
watershed. A warm, wet winter with extreme low
snowpack levels, coupled with a dry, hot summer,
created dire conditions for salmon. (DeGasperi 2017)
The Muckleshoot Indian Tribe reported adult Chinook
salmon dying in the stream just below the Soos Creek
hatchery (H. Coccoli, pers. comm.), and Washington
Department of Fish and Wildlife (WDFW) data indi-
cated higher than typical numbers of female Chinook
mortality with high egg retention (pre-spawn mortal-
ity) (Unpublished WDFW data). Other sublethal im-
pacts associated with temperatures in excess of 17°C
can include developmental abnormalities, altered
growth rates, and non-fertilization of eggs; altered
migration timing; altered predator/prey relationship;
and reduced disease resistance.
Sea level in Puget Sound rose 20 centimeters from
1900-2008 and scientists project sea level will rise
an additional 0.6 meters by 2100. A 1-foot increase in
water surface elevation means an order of magnitude
increase in high water events—so a 100-year event
turns into a two year event (Mauger et al. 2015). Sea
level rise will have myriad effects on the marine
nearshore habitats, including increased bank/bluff
erosion, landslides, and lost nearshore habitats
(e.g., eelgrass, forage fish spawning habitat, estuary
mudflats, etc.) due to the “coastal squeeze” adjacent
to armored shorelines. In addition, increased risk of
erosion could contribute to a growing demand for
additional shoreline armoring.
Figure 9. Coastal squeeze in nearshore graphic along the Puget Sound Nearshore refers to the shallow areas
where forage fish spawn and are being squeezed out of existence by shoreline armoring and sea level rise
(Coastal Geologic Services).
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
38
A growing body of research is focusing on the po-
tential impacts of ocean acidification on the Puget
Sound ecosystem. Ocean acidification is driven by
the absorption of carbon dioxide and is expected
to impact survival, growth and behavior of marine
organisms. In addition to observed impacts to calci-
fying organisms (e.g., oysters and crab) there is more
recent evidence that ocean acidification may impair
sense of smell in salmon, impede growth in herring
and other species, and alter plankton populations –
which may have a cascading impact on marine food
webs. Experiments have shown that coho salmon’s
ability to avoid predators declines and risk of being
eaten increases in low pH waters (Dunagan 2019).
Although considerable uncertainty surrounds the
potential impacts of ocean acidification on salmon,
there is potential for it to exacerbate the issue of
marine survival.
Elevated Water Temperatures
(Watershed-wide)
Watershed Status
Water temperature is a key determinant of the bio-
logical integrity of a river – especially as it relates to
cold-water dependent salmonids. High water temper-
atures can act as a limiting factor for the distribution,
migration, health and performance of salmon. Wash-
ington State’s water quality standards are protective
of viable salmonid habitat in the Green River by
assigning a numeric criterion of 16°C, above which
the water body is considered impaired (WAC 173-
201A-602). A supplemental criterion of 13°C, in effect
between September 15 and July 1 further protects sal-
monid habitat. The widespread removal of tall, native
trees along the riparian corridor – especially in the
middle and lower Green River – allows solar-atmos-
pheric radiation to rapidly warm water as it moves
downstream below HHD. As a result, large stretches
of the Green River, Soos Creek and Newaukum Creek
regularly exceed established water quality standards
for temperature. In 2011, the Washington State
Department of Ecology developed total maximum
daily loads (TMDLs) for the Green River and
Newaukum Creek that outlined an implementation
plan for improving temperatures. Another TMDL for
Soos Creek is under development.
The Green/Duwamish experienced widespread po-
tentially lethal water temperatures in 2015 (DeGasperi
2017). In response, WRIA 9 led the development of the
Re-Green the Green: Riparian Revegetation Strategy
(2016) to emphasize the critical need for increasing
riparian canopy and to prioritize revegetation efforts
within the watershed. The strategy was adopted as
an addendum to the 2005 Salmon Habitat Plan. It
incorporated solar aspect shade maps published in
2014 by the Muckleshoot Indian Tribe to prioritize
areas where increased tree canopy – and thus shade
– could provide the largest benefit to preventing ele-
vated water temperatures. It also established reveg-
etation goals that were directly incorporated into
this Plan Update. WRIA 9 developed a Re-green the
Green grant program using Cooperative Watershed
Management funds from the Flood Control District to
accelerate revegetation efforts across the watershed.
Research/Monitoring
In addition to periodic exceedances of potential
lethal water temperatures, a review of 7-DMax water
temperatures at Whitney Bridge (RM 41.5) shows that
instream temperatures regularly exceed established
thresholds for sublethal impacts to salmon. Figure 10
shows 7-DMax temperatures from 2001-2016 in rela-
tion to key Chinook salmon life history stages. These
data suggest migration, early spawning, egg incuba-
tion, yearling and parr rearing all potentially subject
to sublethal impacts associated with elevated water
temperatures.
A literature review completed for WRIA 9 (Kubo 2017)
provides a summary of potential temperature-relat-
ed impacts to Chinook salmon. Adult fish migrating
upstream may be subject to increased metabolic
demand, delayed migration, increased disease expo-
sure, decreased disease resistance, and even direct
mortality. Spawning fish may experience reduced
gamete quality and quantity and reduced fertilization
success. Chinook eggs may be subject to reduced
embryo survival, decreased hatching-emergence
condition, increased abnormalities, and altered meta-
bolic rates. Juveniles and outmigrants may be subject
to reduced feeding and growth rates, increased dis-
ease susceptibility, and accelerated onset of smoltifi-
cation and desmoltification. Although many impacts
may be sublethal, they can contribute to an increase
in delayed mortality.
Protecting and restoring mature riparian tree canopy,
protecting cold water sources, and promoting hy-
porheic exchange between the river/floodplain and
the alluvial aquifer are essential to build ecological
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
39
Figure 10. Plot of 7-DMax water temperatures for the 2015 and 2016 calendar years measured by King County
at the Whitney Bridge station (GRT10) compared to 7-DMax temperatures measured from 2001-2014. State stand-
ards for designated uses are noted by the orange line and potentially lethal impacts are indicated by the red line.
State standards for designated uses include core summer salmonid habitats (July 1 – September 15) as well as
spawning and incubation periods (September 16 – July 1). Timing of specific Green River Fall Chinook lifestages
included below.
Source: Adapted from King County 2016.
25
20
15
10
5
0 Jan Feb Mar Apr May June July Aug Sept Oct Nov Dec Jan
INCUBATION INCUBATION
SPAWNING
ADULT UPSTREAM MIGRATION
YEARLING REARING
PARR REARINGFRY REARINGWATER TEMPERATURE (C)Chinook life stages
DMax water temperatures at Whitney Bridge station (GRT10)2001-2014
2015
2016
resilience to rising temperatures and moderate the
impacts associated with climate change. By 2080, it
is expected that the number of river miles exceeding
salmonid thermal tolerances (>18°C) will increase by
70 miles in the Green/Duwamish watershed
(G. Mauger 2016). One study suggests that warming
of 2-5.5°C could result in the loss of 5-22 percent of
salmon habitat by 2090 (O’Neal 2002).
Fish Passage Barriers (Watershed-wide)
Watershed Status:
Fish passage barriers are a critical obstacle to
Chinook salmon recovery in the watershed. The
presence of Howard Hanson Dam and the Tacoma
Headworks Diversion facility block access to approx-
imately 40 percent of the historical Chinook salmon
spawning and rearing habitat (NOAA 2019). This
barrier alone blocks access to somewhere between
78-165 miles of suitable fish habitat. The 2005 Plan
assumed fish passage would be provided by 2015. Ta-
coma completed an upstream trap and haul facility at
the headworks facility in 2007; however, downstream
fish passage at Howard Hanson Dam has not been
completed.
Predicted temperature increases,
lower summer flows and altered
precipitation patterns are likely to
exacerbate temperature-related
stress for Chinook salmon.
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
40
In 2019, the NOAA Fisheries released a biological
opinion (BiOp) that concluded U.S. Army Corps
operations at Howard Hanson Dam would “jeopardize
the continued existence of ESA-listed Puget Sound
(PS) Chinook salmon, PS steelhead, and Southern
Resident killer whales (SRKW), and that the proposed
action is likely to result in the adverse modification of
these three species’ critical habitat designated under
the ESA.” In issuing the jeopardy opinion, NOAA stat-
ed that without fish passage the population’s abun-
dance, productivity, and spatial diversity could not
achieve established viability criteria, thus increasing
the risk of extirpating the population.
In order to avoid jeopardizing ESA-listed Chinook,
the BiOp concluded that the U.S. Army Corps must
provide operational downstream fish passage no later
than February 2031. The resulting facility would be
required to satisfy established performance criteria,
including achieving 98 percent survival of all fish
passing through the facility. The BiOp states that if
established performance standards are satisfied, the
Upper Green watershed could support self-sustaining
populations of Chinook salmon and steelhead, “dra-
matically improving the likelihood that the Chinook
salmon population would achieve a highly viable
status.”
In addition to HHD, an unknown number of smaller
fish passage barriers impact Chinook salmon move-
ments within the watershed. There is a growing
recognition that a number of barriers associated with
smaller tributaries adjacent to roads, revetments
and flood control structures block juvenile access
to critical rearing habitats. One of the larger existing
barriers is the Black River Pump Station. The pump
station is a flood control facility built in 1970, located
near the mouth of the Black River. While the facility
was originally constructed with both upstream and
downstream fish passage facilities, they are outdat-
ed and currently do not meet federal fish passage
criteria (Jacobs 2020). In its current state, the facility
limits both upstream and downstream fish passage
and restricts access to over 50 miles of stream,
including Springbrook Creek, Panther Lake Creek,
Garrison Creek, and Mill Creek. Although the majority
of stream habitat is primarily suitable for coho and
steelhead, Chinook salmon have been found in the
system, and the area immediately upstream of the
facility could provide important rearing and refuge
habitat for juvenile Chinook.
Research/Monitoring
A 2019 study evaluating the use of small non-natal trib-
utaries (streams that do not support Chinook spawn-
ing) by juvenile Chinook highlighted the importance
of these habitats for both juvenile rearing and flood
refuge. Juvenile Chinook were identified in eight of the
nine tributaries sampled in the Lower Green River
basin and were found up to 480 meters above the con-
fluence with the Green River. The results demonstrated
(1) widespread use of non-natal tributaries for extend-
ed lengths of time; (2) heavily urbanized streams with a
large amount of impervious surfaces appear capable of
supporting non-natal juvenile rearing; (3) juvenile up-
stream passage is an important consideration for fish
barriers; and (4) variability in flapgate performance for
juvenile fish passage (King County 2019). A follow-up
study was funded by WRIA 9 in 2019 to assess flapgate
performance and identify potential retrofit and replace-
ment options to improve juvenile passability.
Long-term fish-in fish-out monitoring by WDFW
indicates that Chinook salmon population produc-
tivity is limited by available rearing habitat and that
parr outmigrants disproportionately contribute to
the abundance of returning adults (Anderson and
Topping 2018). Restoration of non-natal tributaries
has the potential to complement ongoing restoration
efforts in the Lower Green River mainstem to provide
additional capacity to support fry growth into parr
prior to outmigration to the Duwamish estuary. Larger
(basins >100 acres), low-gradient (<2%) tributaries
likely provide a large amount of rearing habitat and
support higher densities of juvenile Chinook (King
County 2019; Tabor et al. 2011; Tabor and Moore 2018;
Tabor, Murray and Rosenau 1989; Scrivener et al.
1994; Bradford et al. 2001).
Non-natal tributaries provide
important rearing and refuge
habitat in the Lower Green
subwatershed.
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
41
Land Conversion (Watershed-wide)
Watershed Status
Located within the greater Seattle metropolitan area,
population growth and economic development have
significantly modified the watershed, its underlying
hydrology, and the salmon habitat within it. In ad-
dition to legacy impacts (Chapter 3 of 2005 Plan),
the watershed experienced tremendous population
growth and development in the 15 years since the
2005 Salmon Plan. The population of King County
population swelled approximately 25 percent, adding
an additional 444,000 residents (U.S. Census Bureau
2019; King County 2006). During the same timeframe,
46,000 new housing units were constructed in the
watershed (WA Dept. of Commerce 2017).
The extensive development pressures within the
watershed – especially in the Nearshore, Duwamish
and Lower Green watershed – have degraded large
portions of the watershed from natural conditions.
In addition to direct habitat loss, land conversion
contributes to increased impervious coverage and
stormwater runoff. Refer to the Stormwater section in
this chapter for additional information on stormwater
impacts on salmon. Approximately 32 percent of the
watershed is located within established urban growth
areas (UGAs). Competition for scarce available land
contributes to high restoration/acquisition costs and
the loss of restoration priorities to redevelopment
pressures.
Source: King County, 2019: Juvenile Chinook Use of Non-natal Tributaries in the Lower Green River
Figure 11. Representative tributary mouth habitats associated with flapgate flood control structures. 1810_9332m_GreenRiver-TribHabitats-2.aiAGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
42
Research/Monitoring
Despite the tremendous growth and development
pressure, growth management efforts have concen-
trated new housing construction within urban growth
areas. Only about 3 percent of housing units con-
structed in the watershed since the 2005 Plan have
occurred outside of UGAs (WA Dept. of Commerce
2017). While this is a positive outcome, a compreo-
hensive assessment of changes in forest cover and
impervious surfaces has not been completed since
2006. In addition, the basin-wide effectiveness of
critical area and shoreline protections has not been
assessed. A WRIA 9-funded study of marine shoreline
development from 2016-2018 observed a net increase
in shoreline armoring and permit compliance rates
below 50 percent (King County 2019). Additional
information about the status of marine shorelines is
presented in the Shoreline Armoring section.
Levees and Revetments (Middle and
Lower Green)
Watershed Status
An extensive network of flood containment and train-
ing levees and revetments protect economic develop-
ment and agricultural land in the Lower and Middle
Green River valleys. In total. there are approximately
36 miles of levees and revetments in the watershed.
Over 27 miles of facilities provide flood protection
for the Lower Green River valley – the second larg-
est warehouse and distribution center on the west
coast. The valley contains $7.3 billion of structures
and associated content, supports over 100,000 jobs,
and generates an annual taxable revenue of $8 billion
(Reinelt 2014).
Flood control facilities degrade floodplain function
and reduce habitat complexity. They disconnect large
portions of the historical floodplain, off-channel hab-
itats, and tributaries – all important juvenile salmon
rearing and refuge habitats. Associated vegetation
maintenance standards limit riparian revegetation
and contribute to elevated instream temperatures.
Facilities also disrupt sediment delivery and filtration,
water storage and recharge, and large wood input to
the river channel. In addition to the direct impacts of
the facilities, they also support land use development
on historic floodplains habitats.
Due to the diversion of the White and Black rivers,
much of the “connected” floodplain is perched above
the river channel and only connected during very
high flows. Current flows with a 100-year flood event
equate to an historic two-year event (King County
2010). At these flows, only 18 percent (3,518 of 19,642
acres) of the historic Lower Green River floodplain is
connected (Higgins 2017). The loss of juvenile ChiT-
nook salmon-rearing habitat reduces juvenile survival
and overall population productivity. Restoration of
floodplain habitat in the Lower Green River valley not
only requires levee setbacks, but also requires ex-
tensive fill removal to reconnect perched floodplains
across a larger range of flows.
Research/Monitoring
Since the 2005 Plan, studies have shown higher
growth rates for Chinook salmon accessing flood-
plains when compared to fish rearing exclusively in
the mainstem. Increased growth likely results from
increased food availability and foraging efficiency
in floodplain habitats (Henning 2004; Sommer et al.
2001; Jeffres, Opperman and Moyle 2008; and
Lestelle et al. 2005). This research also suggests that
any increased risk of stranding during retreating
flows is offset by the potential for increased growth
rates. These studies emphasize how important flood-
plain habitats are to juvenile Chinook growth and
provide an important context for understanding how
the magnitude of habitat loss in the Lower Green and
to a lesser extent in the Middle Green have impacted
juvenile Chinook production locally.
Analysis of juvenile life history success in adult Green
River Chinook salmon (2015-2017) found parr outmi-
grants disproportionately contribute to adult returns
relative to their abundance. Although parr comprised
3-56 percent of the out-migrating juveniles, more
than 97 percent of returning adults were found to
have exhibited the parr life history. In comparison,
the parr life history is reflected in 64 and 76 per-
cent, respectively, of the adult returns in the Skagit
and Nooksack watershed (Campbell and Claiborne
2017; Campbell et al. 2019). These data indicate that
Chinook salmon life history success varies between
watersheds and that productivity (adult spawner
abundance) in the Green is currently driven by parr
production, as juveniles exhibiting the fry life history
rarely survive to adulthood.
AGENDA ITEM #6. e)
Sediment Contamination (Duwamish)
Watershed Status
Industrial and commercial development in the
Duwamish estuary not only led to dredge and fill of
historical estuarine wetlands, but also left a legacy of
persistent contaminants within the working water-
front. Two Superfund sites require additional clean-up
in the Duwamish, the Lower Duwamish Waterway
(LDW) and Harbor Island/East Waterway (EW).
Both sites contain elevated levels of polychlorinated
biphenyls (PCBs), arsenic, carcinogenic polycyclic
aromatic hydrocarbons (cPAHs), as well as dioxins
and furans. The EPA’s Record of Decision for the
LDW (2014) outlines the cleanup plan for the 412 acre
site, which includes 105 acres of dredging or partial
dredging, 24 acres of capping, 48 acres of enhanced
natural remediation and 235 acres of monitored nat-
ural attenuation. Although early action areas (Slip 4,
Terminal 117, Boeing Plant 2/Jorgensen Forge, Diag-
onal Combined Sewer Overflow [CSO], and Norfork
CSO) resulted in cleanup of approximately 50 percent
of PCB contamination, cleanup will not be completed
until after 2031. Cleanup options for the EW site are
under development.
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
43
Figure 12. Spawners-recruit plots showing abundance
of fry and parr produced based on estimated adult
Chinook salmon escapement (Anderson and Topping
2017).
An analysis of long-term juvenile outmigration data
collected by WDFW identified a density-dependent
relationship between adult spawner abundance and
relative parr abundance (Anderson and Topping
2018). Figure 6 shows that adult escapements in
excess of 3,000 fish did not generally result in
increased parr production. In contrast, fry production
was observed to be density independent. Juvenile
Chinook require rearing and refuge habitats (e.g.,
off-channel habitats, side-channels, etc.) to grow into
parr prior to outmigration. When considered in con-
cert with the Campbell and Claiborne studies, these
results highlight the importance of reconnecting
floodplains and restoring rearing habitat to increasing
Chinook returns.
Productivity in the Green/Duwamish is currently constrained by
available rearing habitat in the Lower and Middle Green rivers.NUMBER OF FRYNUMBER OF JUVENILESSPAWNERS ABOVE TRAP
0 1,000 2,000 5,0003,000 4,000 6,000 7,000
100,000
0 100,000
200,000
300,000
400,000
500,000
200,000
400,000
600,000
800,000
NUMBER OF FRYSPAWNERS ABOVE TRAP
0 1,000 2,000 5,0003,000 4,000 6,000 7,000NUMBER OF PARR100,000
0
200,000
300,000
400,000
500,000
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
44
Transport pathways carry contaminants from sources
to surface waters, as well as within surface waters.
Contaminants reach the Green/Duwamish receiving
waters via point discharges (permitted industrial,
stormwater and CSOs discharges), overland flow
(stormwater runoff), groundwater, and direct atmo-
spheric deposition, as well as by spills/leaks and
bank erosion. Fish are exposed to chemicals through
multiple routes including water passing through their
gills and/or its ingestion, direct sediment contact
and/or its ingestion, and/or through consumption
of contaminated prey. Chinook experience greater
chemical exposure during the juvenile phase than
during the adult phase due to the comparatively
different lengths of time they spend in the Duwamish
during these life stages (Colton 2018).
Although the 2005 Salmon Plan hypothesized that
sediment cleanup would benefit Chinook salmon,
limited scientific data were available on the potential
impacts of sediment contamination on productivity at
the time.
Research/Monitoring
A growing body of research findings suggests that
contaminant exposure for juvenile Chinook salmon
in the Duwamish and Elliott Bay is affecting juvenile
Chinook salmon growth, disease resistance, and
immunosuppression, and ultimately marine survival.
Juvenile Chinook salmon rearing in industrial estuary
and nearshore habitats (e.g., Duwamish, Puyallup
and Snohomish) contain elevated levels of organic
contaminants as compared to those rearing in less
developed watersheds (Skagit and Nisqually) (O’Neil
et al. 2015; Varanasi et al. 1993). Juvenile Chinook
salmon whole body PCB tissue concentrations from
the Duwamish and associated nearshore areas have
exceeded adverse impact thresholds (O’Neil et al.
2015; Johnson 2007). PCB levels in wild fingerlings
have also been shown to have significantly higher
PCB levels than their hatchery counterparts, suggest-
ing that wild Chinook have a longer residence time
within the Duwamish estuary (Nelson, et al. 2013).
An examination of 37 years of hatchery data from 20
hatcheries across 14 watersheds found 45 percent
lower smolt-to-adult survival rates for hatchery Chi-
nook that outmigrate through contaminated estuaries
as compared to uncontaminated estuaries (Meador
2014). The study evaluated the findings against the
total amount of estuary habitat, length of freshwater
habitat between each hatchery and estuary, as well
as growth rates and did not find these factors could
explain observed variation in survival rates. Because
wild Chinook – especially the fry outmigrant life his-
tory type – are more dependant on and have longer
residence times in estuarine habitat, the observed
decline in survial may be more pronounced in wild
Chinook salmon.
A recent study by scientists at the NOAA Northwest
Fisheries Science Center estimated the potential
impact remediation of the Lower Willamette River Su-
perfund site would have on Chinook salmon recovery
(Lundin et al. 2019). The study used a combination of
field and laboratory-collected exposure, growth, and
disease resistance data to estimate acute and de-
layed mortality rates for juvenile Chinook. These esti-
mates were then incorporated into a life cycle model
that estimated sediment remediation could improve
juvenile survival by 54 percent and increase popula-
tion abundance by 20 percent. This study provides a
population-scale assessment of the potential impacts
of legacy pollutants on Chinook salmon and suggests
that remediation in the Duwamish could be a signifi-
cant driver for Chinook recovery.
Figure 13. Chinook salmon that enter the
estuarine waters as fry (< 60 mm) experience
very low marine survival rates. In contrast to less
developed watersheds, estuarine-reared fry in the
Green/Duwamish are not contributing significantly
to adult returns.
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
45
The research on potential adverse impacts to juvenile
Chinook as a result of contaminant exposure is con-
sistent with a recent analysis of juvenile life histories
expressed by adult Chinook salmon in the Green/Du-
wamish River. Analysis of otoliths from returning adult
salmon allow resource managers to back-calculate
size upon entry in marine waters, allowing differentia-
tion between parr and fry migrants. Otolith collection
from adult Chinook salmon (2015-2017) indicate that
less than 3 percent of fish returning to the water-
shed entered marine waters as a fry migrant, despite
representing between 44 and 97 of the total juvenile
outmigrants (Campbell and Claiborne 2017;
Campbell et al. 2019). Additional research is needed
to assess the relative importance of contamination
in relation to other stressors (i.e., existing estuarine
habitat quality and capacity) in contributing to poor
marine survival.
Stormwater (Nearshore, Duwamish,
Lower and Middle Green)
Watershed Status
Stormwater runoff and associated hydrological
modifications resulting from forest conversion and
land use development within the Green/Duwamish
watershed adversely impact water quality and
salmon habitat. Approximately 59 and 24 percent,
respectively, of the 165-foot riparian buffer in the
Duwamish and Lower Green is characterized by im-
pervious surfaces (King Co. unpublished data, 2013).
Although watershed-wide data are not available, the
impacts associated with the loss of forest cover and
increase in impervious surfaces are not confined to
riparian areas. At the basin-wide scale, these levels
of impervious coverage can contribute to a two-three
fold increase in stormwater runoff above natural
conditions (Paul and Meyer 2001). Increased runoff
contributes to rapid changes in flows, with larger
peak flows and lower low flows; increased pollutant
transport and degradation of water quality; shifts in
benthic macroinvertebrates communities; elevated
water temperatures; increased bank erosion and
sediment transport capacity; and altered channel
morphology and hydraulics.
The majority of the development within the water-
shed – and across Puget Sound – predates existing
critical area ordinances and low-impact development
standards designed to mitigate impacts to aquatic
ecosystems. As a result, stormwater runoff is recog-
nized within the region as one of the more significant
challenges facing both salmon and Puget Sound
recovery efforts.
Research/Monitoring
Since the 2005 Plan, a significant body of research
has focused on stormwater toxicity impacts to salm-
on in urban creeks. Consistently high levels of mor-
tality (up to 90 percent) in adult coho salmon have
been observed in urban watersheds, with the extent
of mortality rate related to an urbanization gradient
and, more specifically, density of motor vehicle traffic
(Scholz 2011; Feist 2017 ). More recent studies have
connected observed mortality events to pollutants
associated with highway runoff (Scholz 2016; Peter
2018).
Research suggests that juvenile
Chinook that enter the Duwamish
as fry – as opposed to parr –
experience very low survival and
do not substantively contribute
to population abundance as
measured by adult escapement.
Chemicals of emerging concern (CECs) are another
area of emerging research. The EPA defines CECs as
“chemicals and other substances that have no reg-
ulatory standard, have been recently ‘discovered’ in
natural streams (often because of improved analytical
chemistry detection levels), and potentially cause del-
eterious effects in aquatic life (e.g., endocrine disrupt-
ers) at environmentally relevant concentrations” (EPA
2008). CECs include hormones, pharmaceuticals
and personal care products (PPCPs), and industrial
process chemicals. An analysis of juvenile Chinook
whole body tissue in several Puget Sound estuaries
detected 37 of 150 surveyed PPCPs (Meador et al.
2016). Metabolic disruption consistent with starvation
was also observed in juvenile Chinook collected ad-
jacent to waste water treatment plants in Sinclair Inlet
and the Puyallup River (Meador 2018). The potential
impacts to Chinook salmon growth, reproduction, and
behavior are not well understood.
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
46
6/2/13 3/5/15
Although Chinook salmon do
not appear vulnerable to acute
toxicity as a result of roadway
runoff exposure (Scholz 2019),
more research is needed to
evaluate potential sublethal
impacts.
Figure 14. Shoreline modification identified during Marine Shoreline Monitoring and Compliance Project (Ecology).
Although studies have shown treatment of runoff can
prevent acute toxicity, the large capital expenditures
associated with stormwater retrofits have precluded
widespread implementation. A comprehensive needs
and cost assessment for stormwater retrofit within
the Green/Duwamish and Central Puget Sound wa-
tershed was completed in 2014. The study evaluated
278 square miles of the watershed, excluding Seattle
and areas upstream of Howard Hanson Dam. An esti-
mated $210 million per year would need to be spend
over the next 30 years to build necessary regional
facilities, retrofit roads and highways, and retrofit
non-forested lands not redeveloped within the next
30 years (King County 2014).
Shoreline Armoring (Nearshore)
Watershed Status
The Green/Duwamish and Central Puget Sound
watershed encompasses 92 linear miles of marine
shoreline. Associated nearshore habitats provide not
only important rearing and migratory habitat for juve-
nile salmon, but also spawning habitat for forage fish
(e.g., sand lance and surf smelt), which are important
prey items for salmon, birds and marine mammals.
Delivery of sediment and trees from natural bluffs
helps sustain nearshore habitat complexity (beaches,
spits, eelgrass beds, etc.) and shoreline resilience to
coastal erosion and sea level rise.
The degradation of marine shorelines and associated
ecological functions has implications not only for
Chinook salmon recovery, but also for the ESA-listed
southern resident orca population. Shoreline armor
– especially along feeder bluffs – disrupts sediment
supply and transport, altering nearshore habitat
quantity and quality. Shoreline land use ranges from
commercial and industrial waterfront in Elliott Bay,
urban residential between Seattle and Federal Way,
to rural residential and undeveloped shorelines
along Vashon Island. Approximately 65 percent of the
shoreline is currently armored and only 22 of 52 drift
cells have greater than 50 percent of historical feeder
bluffs intact (King County 2019; WRIA 9 2012).
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
47
Research/Monitoring
Recent research reinforces assumptions in the 2005
Plan about the importance of nearshore habitats to
salmon. The range of physical and biological impacts
in response to shoreline armoring varies across spa-
tial and temporal scales. Shoreline armoring impacts
wrack and log accumulation, juvenile fish utilization,
forage fish spawning, beach profiles, sediment grain
size, and marine riparian vegetation. In particular,
drift cells with a high proportion of armoring tend to
be characterized by skinnier beaches, coarser sedi-
ments, fewer drift logs, fewer prey species (Dethier et
al. 2016).
Natural shorelines convey important benefits to
juvenile Chinook salmon. Small juvenile salmon
preferentially use low-gradient, unarmored shorelines
(Munsch, Cordell and Toft 2016). Riparian vegetation
associated with unarmored beaches provide a source
of terrestrial prey items for juvenile Chinook and ben-
efit forage fish egg survival by moderating substrate
temperatures and maintaining humidity (Rice 2006;
Toft, Cordell et al. 2007). Even small-scale beach
restoration projects (i.e., Olympic Sculpture Park) have
resulted in measurable increases in larval fish abun-
dance, juvenile salmon, and invertebrate diversity
as compared to adjacent armored shorelines (Toft,
Ogston et al. 2013).
The magnitude of unpermitted shoreline modifica-
tions threatens to negate investments in shoreline
restoration and undermine the goal of “no net loss”
established within the Shoreline Management Act.
From 2013-2018, the watershed saw a net increase of
364 feet of shoreline armor despite armor removal
and restoration of 382 feet shoreline during the same
timeframe. Only 42 percent of observed shoreline
modifications were permitted by local governments
prior to construction (King County 2019).
Although juvenile Chinook from the Green/Duwamish
River have been observed to use the marine shore-
lines throughout Central Puget Sound, considerable
uncertainty surrounds the relative importance of
non-natal coastal streams and pocket estuaries. A
study in the Whidbey Basin found abundant use of
non-natal coastal streams (32 of 63 streams) by juve-
nile Chinook. The presence of juvenile Chinook was
influenced by (1) distance to nearest natal Chinook
salmon river; (2) stream channel slope; (3) watershed
area; and (4) presence and condition of a culvert at
the mouth of a stream. The importance of non-natal
coastal streams to juvenile Chinook salmon dropped
significantly beyond 7 km from the mouth of a Chi-
nook bearing river (Beamer, et al. 2013). Additional
research is needed to prioritize non-natal coastal
streams in WRIA 9 with respect to potential contribu-
tion towards Chinook salmon recovery.
Despite the recognized
importance of natural shorelines
and significant regional
investment in armor removal,
WRIA 9 continues to experience a
net increase in shoreline armoring.
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
48
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
49
WRIA 9 developed 11 overarching recovery strategies
to organize watershed priorities and guide future
investments. These strategies outline priority areas
of focus intended to advance salmon recovery over
the next 10-20 years. Recovery strategies are not
prioritized. Implementation across the portfolio of
recovery strategies is necessary to address priority
pressures; increase salmon abundance, productivity,
and diversity; and build long-term population resil-
iency. Successful implementation hinges on partner
coordination and investment to ensure local land use
planning, capital investment programs, and commu-
nity outreach messaging are consistent with identi-
fied watershed priorities.
WRIA 9 hosted a series of subwatershed workshops
to review and update policies and programs from
the 2005 Salmon Habitat Plan. Revised policies and
programs are organized by recovery strategies – as
opposed to subwatershed – to reduce redundancy
and improve alignment with other Puget Sound
salmon plan updates. This structure is intended to
provide project sponsors and other recovery part-
ners a streamlined communication tool for a shared
understanding of what needs to happen, where,
and what policy considerations are necessary at the
local and regional level to advance Chinook salmon
recovery.
Strategy: Restore and Improve Fish Passage
Location: All Subwatersheds
Fish passage barriers block access to important
spawning and rearing habitat and can exacerbate
localized flooding issues. Legacy transportation and
flood control infrastructure were not regularly de-
signed for fish passage and/or elevated flood flows
associated with climate change. Although address-
ing fish passage barriers was a priority in the 2005
Plan, a 2018 U.S. Supreme Court ruling affirmed that
the State has a treaty-based obligation to address
culverts under state-maintained roads in order to
preserve tribal harvest rights within their usual and
accustomed areas. This ruling has reinforced the
need and elevated the urgency for addressing identi-
fied barriers in a systematic and strategic manner.
Chapter 6:
Recovery Strategies
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
50
Figure 15. Juvenile fish passage barriers block
juvenile Chinook salmon access to important rearing
habitat in non-natal tributaries. Photos: Mike Perfetti.
Figure 16. Healthy juvenile Chinook (right) and coho
(left) salmon sampled from a non-natal tributary in
2018. Photo: Chris Gregersen.
Programs
»Fish Passage Barrier Removal
WRIA 9 partners should work towards a compre-
hensive inventory of fish passage barriers in the
Green/Duwamish and Central Puget Sound Wa-
tershed, and prioritize barrier removal across the
watershed to maximize the benefit of fish passage
investments. Although the majority of existing
barriers in the watershed impact coho salmon
and steelhead, special consideration should be
given to removing barriers to non-natal tributary
rearing habitats. Recent fish monitoring studies
have demonstrated the importance of non-natal
tributaries to juvenile Chinook and remedying these
barriers will expand available rearing habitat and
increase Chinook productivity. Recent fish moni-
toring studies have demonstrated the importance
of non-natal tributaries to juvenile Chinook (King
County 2019; Tabor and Moore 2018) and reme-
dying these barriers will expand available rearing
habitat and increase Chinook productivity.
Many partner jurisdictions do not have the capacity
to implement a programmatic approach to barrier
identification and removal; instead, barrier removal
is driven by infrastructure repair needs and local
capital improvement programs. Some, such as the
City of Seattle, have an inventory and prioritized list
of fish passage barriers but lack sufficient funding
for implementation. To support a more compre-
hensive approach to fish passage, WRIA 9 partners
should leverage available technical assistance
from Washington Department of Fish and Wildlife
(WDFW) Fish Passage and King County Fish Pas-
sage Restoration Programs to assess and prioritize
barriers for removal outside of their scheduled
capital improvement programs to expedite high-
priority barrier removals. Jurisdictions should apply
for funding for high-priority projects through the
Brian Abbott Fish Barrier Removal Board. Regional
coordination among WRIA 9 partners on fish barrier
removal priorities should help identify synergies
and accelerate barrier removal in priority subwa-
tersheds. Programmatic improvements within the
County Fish Passage Restoration Program may
support increased efficiencies within other jurisdic-
tions. Fish passage accomplishments and lessons
learned should be shared regularly to expedite bar-
rier identification and increase coordination across
the watershed.
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
51
Policies
»Fish Passage (FP) 1: Provide efficient and safe fish
passage where built infrastructure (e.g., road cross-
ings and flood control facilities) intersects instream
habitats. Fish passage design considerations
should not only facilitate adult upstream migration,
but also ensure juvenile salmonid access to rearing
habitat provided in non-natal tributaries. Project
sponsors should use WDFW Water Crossing Design
Guidelines (2013) to assess feasibility and support
alternative development.
Strategy: Protect, Restore and Enhance Floodplain Connectivity
Location: Lower and Middle Green
The process of channel migration within the floodplain
creates side channels, back-water sloughs, and other
off-channel habitats that are critical for juvenile salm-
on rearing and refuge. Floodplains also facilitate an
exchange of nutrients and organic material between
land and water, and provide important flood storage
capacity that can mitigate flood damages to adjacent
communities. The
historic loss of flood-
plain habitat within
the Green/Duwamish
watershed resulted
in a loss of habitat
complexity, increased
peaks flows and water
velocities, and a loss of
groundwater storage
and important cold
water recharge during
summer months. Flow
regulation at Howard
Hanson Dam and the
diversion of the White
River into the Puyallup
River has reduced the
frequency and mag-
nitude of flood events
and left much of the
floodplain perched well
above the current river
channel. Reconnecting
floodplains and restor-
ing floodplain habitats
is essential to increas-
ing both the available
rearing habitat and
corresponding salm-
on productivity of the
system.
Figure 17. The Lower
Russell Road Levee Setback
Project is a multi-benefit
project that provides flood
risk reduction, habitat
restoration, and recreational
enhancements.
PSE Corrid
o
r
T
r
ail
Russell Road
Green River
Natural Resources AreaGreenRiver
S 2 3 1 s t / S 2 2 8th St
S .2 1 2 t h S t.
Habitat Area A
(Main Channel Edge)
Scour Deflectors
Relocated Van Doren's
Landing Park
Hand-Carry
Boat Launch
Relocated
Trailhead
Setback Levee
1
2
3
4
5
6
KOA Campground
Habitat Area B
(Backwater)
MAJOR PROJECT ELEMENTS
LOWER RUSSELL LEVEE SETBACK
Grading Contour (1 ft.)
Floodw all
OHW
Habitat Wood
Eddy Feature and Number
Pump and Discharge Site
New Van Doren's Park Boundary
Green River Trail
Levee Trail
Secondary Trail
Road Improvement
Wetland
Updated 08/1/2019
Grading Plan 5/3/18
1
0 500 ft.
N
AGENDA ITEM #6. e)
Setback :
Relocation of the toe of the
levee/revetment landward of
ordinar y high water to
provide for increased erosion
and channel migration.
100-year flood elevation
with setback levee
Existing 100-year
flood elevation
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
52
Programs
None identified. Implementation relies on individual
capital projects that will be identified in project list.
Policies
»Floodplain Connectivity (FC) 1: Support
multi-benefit flood risk reduction projects that also
enhance salmon habitat by allowing rivers and
floodplains to function more naturally. Multi-benefit
projects can (1) reduce community flood risk;
(2) provide critical salmon habitat; (3) increase
floodplain storage; (4) improve water quality;
(5) replenish groundwater; (6) expand public rec-
reation opportunities; and (7) strengthen commu-
nity and ecological resilience to extreme weather
events due to climate change.
»FC2: Wherever possible, flood protection facilities
should be (re)located away from the river edge to
reconnect floodplains and re-establish natural riv-
erine processes. During conceptual design of alter-
natives, project sponsors should evaluate opportu-
nities to pursue relocation of existing infrastructure
and real estate acquisition to support levee set-
backs. A process-based approach to restoration is
ideal for species recovery; however, where a levee
setback is infeasible due to the constraints of past
land use activity, alternative facility designs (e.g.,
levee laybacks) should strive to incorporate plant-
ing benches and wood structures that mimic lost
ecosystem services and improve critically needed
edge habitat.
»FC3: Local government should utilize critical areas
and shoreline regulations and associated land use
policies to protect creek riparian areas and asso-
ciated floodplains to increase the flood storage
capacity of these areas.
»FC4: Vacating and relocating roads should be
evaluated as tools to support salmon restoration
priorities where impacts are negligible and/or can
be mitigated. Coordinating transportation infra-
structure improvements with salmon habitat needs
(e.g., floodplain reconnection and fish passage) can
improve outcomes and reduce project costs. Road
vacation policies should be updated to consider
level of use and road standards.
Strategy: Protect, Restore, and Enhance Channel Complexity and Edge Habitat
Location: Lower, Middle and Upper
Green
Flood protection facilities (e.g., Howard Hanson Dam,
revetments, and levees) and loss of riparian habitat
have disrupted sediment transport, simplified hab-
itat complexity, contributed to a loss of rearing and
refuge habitat, and impeded natural recruitment of
spawning gravels. Although process based restora-
tion is preferred, ongoing intervention is necessary to
replace/mimic natural processes where they cannot
be restored.
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
53
Programs
»Middle Green River Gravel and
Wood Supplementation Program
The U.S. Army Corps of Engineers and Tacoma Pub-
lic Utilities should continue gravel and wood sup-
plementation in the Middle Green River to account
for disruption of natural sediment transport and
wood recruitment caused by Howard Hanson Dam.
Up to 14,000 tons of spawning gravels are deposit-
ed annually at two sites located near river mile 60,
just downstream of the Tacoma Headworks Facility.
High flows during the winter months engage the
deposited gravel and naturally distribute it down-
stream. Regular monitoring of gravel distribution
should inform quantity, size gradation, and timing to
maximize benefits for salmonids.
The U.S. Army Corps Corps should continue to
transport large wood (> 12 in. diameter; > 20 ft. in
length; >4 ft. diameter root ball) that is stranded
in the reservoir to below the Tacoma Headworks
Facility. Large wood increases channel complexi-
ty, provides habitat for juvenile fish, and provides
nutrients and substrate for aquatic insects. The
upper watershed is heavily forested and large
wood is transported to the reservoir during high
flow events, but is unable to move downstream of
the dam without intervention. Existing quantities of
large wood downstream of the dam remain signifi-
cantly below recommended wood volumes (Fox
and Bolton 2007) to support salmon recovery. Peri-
odic surveys should be completed to monitor large
wood volumes and ensure project success.
Policies
Channel Complexity (CC) 1: Project designs
should incorporate best available science related
to climate change predictions and anticipated
changes to seasonal instream flow patterns to
enhance channel complexity and edge habitat
across a range of flows. Lower spring and summer
flows could make restored rearing habitat inacces-
sible during juvenile Chinook outmigration. Special
consideration should be given to project designs
that ensure juvenile salmon rearing habitat remains
accessible in low flow years.
»CC2: For habitat restoration projects calling for the
addition of large woody debris, placement of wood
should consider risk to river users, such as boaters
and swimmers.
Strategy: Protect, Restore, and Enhance Riparian Corridors
Location: All Subwatersheds
Healthy riparian corridors provide a critical role in pro-
viding cool and clean water for salmon. Riparian vegeta-
tion shades instream habitat and moderates water tem-
peratures; reduces erosion by stabilizing streambanks;
captures rainwater and filters sediment and stormwater
pollutants; provides terrestrial nutrient and food inputs;
and is a source of large wood, which is critical to habitat
complexity. Restoring riparian corridors is essential to
addressing high summertime water temperatures and
building long-term resilience to predicted changes as-
sociated with climate change. The Washington State De-
partment of Ecology (Ecology) developed total maximum
daily loads (TMDLs) for the Green River and Newaukum
Creek in 2011 that outlined an implementation plan for
improving temperatures. Another TMDL for Soos Creek
is under development. Refer to the “Integrate Agricultur -
al Protection and Salmon Recovery Initiatives” strategy
for a discussion of riparian corridors within agricultural
lands.
Programs
»Re-Green the Green Revegetation Program
The 2016 Re-Green the Green Strategy prioritizes
riverine, estuarine and marine areas for revegetation,
establishes interim goals, and outlines strategies for
securing necessary funding. Riparian revegetation
priorities are based on the solar aspect shade maps
developed by the Muckleshoot Indian Tribe (2014). This
effort identified and prioritized shorelines where shade
is critically needed to reduce instream water tempera-
tures that frequently exceed water quality standards.
WRIA 9 should continue to run an annual grant pro-
gram that supports program implementation across
priority shoreline areas. As of 2020, approximately
$500,000 of annual Cooperative Watershed Manage-
ment Funds provided by the King County Flood Con-
trol District have been set aside to support Re-Green
the Green project implementation by WRIA 9 partners.
This funding is intended to provide a baseline level of
revegetation funding that can be leveraged to access
other sources of funding. Riparian revegetation proj-
ects help improve water quality, lower water tempera-
tures, stabilize shorelines, contribute insects (prey) for
juvenile salmonids, increase stormwater infiltration,
and improve aquatic habitat quality when trees fall into
the river.
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
54
acres
revegetated
*414 (17%) acres out of the 2,384 acre goal established in the 2016 Re-Green the Green Strategy. The goal
reflects a proportion of the total riparian buer (developed and undeveloped) that has less than 50% tree cover.
15 watershed partners have revegetated 414* acres along
75,314 linear feet (14.3 miles) of shoreline
in the Green/Duwamish watershed—that’s nearly
5 Foster Golf Courses or
235 Sounders soccer fields of new
revegetated shoreline!
SINCE 2015
17%83% acres left to revegetate
Green Duwamish Revegetation2015-2020 PROGRESS REPORT
Figure 18. Progress towards the watershed revegetation goals established in the WRIA 9 Re-Green the Green Strategy.
»Implement coordinated and comprehensive
approach to noxious/invasive weed removal
along river and marine shorelines
WRIA 9 partners should coordinate with the King
County Noxious Weed Removal Program to prior-
itize and sequence weed removal efforts through
the watershed. Noxious weed control should be
conducted in parallel with priority riparian reveg-
etation efforts. Ongoing invasive removal on res-
toration sites is critical until native plants become
established (~ five years).
Invasive plants spread quickly, impede growth and
establishment of natives, and degrade riparian
habitats by destabilizing riverbanks and reducing
tree canopy needed to help maintain cool water
temperatures. Priority species impacting the ripar-
ian community in the Green/Duwamish include
knotweed species (Class B), purple loosestrife
(Class B), policeman’s helmet (Class B), English ivy
(Class C), Himalayan blackberry (Class C), and reed
canary-grass (Class C).
»Long-term Restoration Site Stewardship and
Maintenance
WRIA 9 partners should explore potential funding
sources for a professional stewardship/mainte-
nance crew to provide long-term site maintenance
of restoration sites across the watershed. Salmon
recovery funding generally does not provide for
site maintenance beyond several years, and main-
tenance typically falls outside the scope of regular
park maintenance operations. A shared mainte-
nance crew would provide cost savings to jurisdic-
tions for maintenance of the growing portfolio of
restoration sites.
Priority tasks for a crew would include invasive
species removal, planting as needed, and litter
cleanup. In addition to these basic functions, this
crew could play an important role in helping to
manage the growing challenge of encampments
within the Green River corridor. This program would
ensure a regular staff presence at restoration sites
to assist with outreach and public safety in addition
to enhancing long-term ecological outcomes. In
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
55
addition, a shared crew would address stewardship
and maintenance needs at sites that are not
suitable for citizen volunteers.
Policies
»Riparian Corridor (RC) 1: Protect and enhance ri-
parian corridors to help achieve temperature water
quality standards established to protect salmon mi-
gration, spawning and rearing. Local governments
should support implementation of the Green River
and Newaukum Creek TMDLs by protecting and
re-establishing mature riparian vegetation within
established stream buffers.
»RC2: Revisit levee vegetation guidelines to im-
prove revegetation opportunities along flood
facilities. Guidelines must balance the critical need
for riparian shade (i.e., Ecology TMDL) with the
need to inspect the structural integrity of facilities
and maintain public safety. Remote sensing (i.e.,
ground-penetrating radar, drones, or boat inspec-
tions) may provide a viable alternative to traditional
visual inspections that require a clear zone.
»RC3: Project sponsors who receive WRIA 9 fund-
ing should request funding for up to three years
post-construction maintenance funding for plant
establishment, and should document the ability to
maintain habitat restoration and protection projects
to ensure long-term objectives are achieved. Main-
tenance may include, but is not limited to, noxious
weed and invasive plant control, revegetation, and
deterrence of undesired uses such as dumping and
occupancy that can damage habitat.
»RC4: River corridor trails should be compatible with
salmon recovery priorities. Trail design standards
should balance the need for riparian tree canopy to
maintain cooler water temperatures with needs for
important recreational view corridors and sight-
lines for user safety. Trail design/placement should
also not preclude reconnection of critically needed
floodplain habitats. Trails offer residents an oppor-
tunity to connect with the river; interpretive signage
should highlight the presence of salmon and the
ecological importance of riparian and floodplain
habitat.
»RC5: Encourage regional efforts to develop a Bon-
neville Power Authority (BPA) mitigation program
for power transmission impacts across Puget
Sound. The BPA has a significant footprint within
the Upper Watershed and the Soos Creek Basin
where vegetation management and tree removal
under transmission lines precludes adequate ripari-
an canopy cover. Although the BPA has established
mitigation programs for Columbia basin operations,
a comparable program does not exist within Puget
Sound.
Strategy: Protect, Restore, and Enhance Sediment and Water Quality
Location: All Subwatersheds
Clean, cold water is essential for salmon growth and
survival. A growing body of evidence suggests clean-
up of legacy industrial contamination and stormwater
pollution control may improve early marine survival
and increase Chinook productivity. Recent scientific
literature suggests contaminant exposure pathways
(e.g., legacy industrial contamination, stormwater run-
off, municipal wastewater discharges, etc.) are having
sublethal and lethal impacts on juvenile Chinook
salmon. Although the acute toxicity of stormwater
runoff to coho salmon in urban watersheds is well
documented, potential sublethal impacts to juvenile
Chinook salmon as a result of contaminate exposure
pathways are not well understood.
Programs
Green/Duwamish Watershed Pollution Loading
Assessment (PLA)
Ecology should continue to lead development of
a pollutant loading assessment (PLA) that will
(1) include a watershed-based model to evaluate
cumulative effects of pollution; (2) assess relative
contribution of toxic pollutants from different
sources/pathways in the watershed; and (3) help
prioritize source control efforts. The PLA is essential
to maximizing effectiveness of Lower Duwamish
Waterway cleanup and avoiding subsequent recon-
tamination.
The PLA is an interim strategy for improving water
quality – it is not a TMDL or another regulatory
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
56
instrument. It represents a foundational effort that
will inform future actions to address source control
issues. Following its completion, WRIA 9 partners
should coordinate with Ecology to address priority
pollutant sources within their jurisdictions.
Implement Pollution Identification and Control
(PIC) Programs
The Vashon-Maury Pollution Identification and Con-
trol (PIC) program provides incentives (technical
support and financial) to replace or repair failing
septic systems, and address other pollution sources
(e.g., animal waste) contributing to water quality
degradation in the marine nearshore. Failing or
inappropriately sited septic systems have resulted
in water quality concerns and closure of beach and
shellfish harvest areas – especially within Quarter
Master Harbor. While the direct impact on shellfish
harvesting is a human health concern, the water
quality pollution can negatively affect various parts
of the nearshore ecosystem that supports Chinook
salmon.
Although the 2005 Salmon Plan focused on Quarter
Master Harbor, PIC programs should be expanded
to other nearshore areas as warranted to identify
pollution sources, provide technical support, and
offer financial incentives to remedy failing septic
systems and other sources of pollution. Over the
last decade, investments made by Public Health—
Seattle & King County and other partners have
resulted in improved water quality and reopening
of 493 acres of shellfish harvest areas.
Creosote Removal Program
WRIA 9 organizations should partner with the
Washington Department of Natural Resources
Creosote Removal Program to identify and remove
creosote-treated debris and derelict structures from
marine and estuarine waters. Creosote structures
leach chemicals and can create toxic conditions
for organisms that live within beach and marine
sediments, as well as disrupt the marine foodweb.
Studies have found creosote exposure can contrib-
ute to mortality of herring eggs and alter growth
and immune function of juvenile salmonids. Dere-
lict structures can also interrupt sediment transport
and displace aquatic vegetation.
Since adoption of the 2005 Plan, the program has
removed over 21,000 tons of creosote debris and
8.0 acres of overwater structures from Puget Sound.
However, thousands of derelict creosote pilings re-
main within Puget Sound. WRIA 9 partners should
continue efforts to inventory and prioritize focus
areas based on concentration of creosote debris
and potential impacts to forage fish and juvenile
salmon rearing.
Policies
»Water Quality (WQ) 1: Promote Low-Impact Devel-
opment (LID) and green infrastructure (natural and
engineered systems) to address stormwater runoff.
Given the magnitude of development constructed
prior to existing stormwater controls, extensive
stormwater retrofits are needed to address legacy
sources of water pollution. LID techniques should
mimic, where possible, pre-disturbance hydrologi-
cal processes of infiltration, filtration, storage, evap-
oration and transportation. LID techniques include:
• Vegetation conservation: native vegetation and
small-scale treatment systems;
• Site design: clustering of buildings and narrower
and shorter roads;
• Retention systems: bioretention, bio-swales, rain
gardens, wetlands and vegetated roofs;
• Porous or permeable paving materials: sidewalks,
trails, residential driveways, streets, and parking
lots; and
• Rainwater catchment: rain barrels and cisterns.
Green Infrastructure: Green
infrastructure is an approach to
water management that protects,
restores, or mimics the natural
water cycle. Green infrastructure
is effective, economical, and
enhances community safety and
quality of life.
– American Rivers
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
57
Figure 19. Stormwater-induced
mortality in coho salmon in Miller Creek,
Normandy Park. Although stormwater
toxicity is not lethal to Chinook salmon,
potential sublethal impacts are not well
understood. Photo: Matt Goehring.
»WQ2: Support local and regional watershed-based
stormwater management initiatives (e.g., Our Green
Duwamish, STORM, etc.) that prioritize programs
and projects that can effectively demonstrate large-
scale, watershed-wide, water quantity and water
quality improvements that benefit salmon recovery.
Potential priorities include:
• Collaborative source control strategies such as
education and outreach, business inspections,
pollution prevention, and programmatic mainte-
nance;
• Regional retrofit programs focused on restoring
natural hydrology and the removal of toxics; and
• Green Stormwater Infrastructure (GSI) incentive
programs that promote the voluntary use of GSI.
»WQ3: Source control efforts across multiple sectors
(commercial, industrial, and agricultural) should
ensure that water and sediment quality support
salmon growth and survival. Source control suffi-
ciency is a critical milestone that must be achieved
to initiate contaminated sediment cleanup. Ensur-
ing implementation, maintenance, and enforce-
ment, where necessary, of source control best
management practices will help reduce pollutant
loading into water bodies and ensure pollutants
don’t undermine sediment cleanup efforts in the
Duwamish. Incentives to promote effective source
control include spill prevention and response,
technical support, and hazardous waste vouchers
to local businesses.
»WQ4: Protect and enhance rural and urban for-
ests, which provide diverse social, economic and
ecological benefits. In Rural Areas of King County,
at least 65 percent of each sub-basin should be
preserved as natural forest cover and impervious
coverage should not exceed 10 percent of a sub-
basin. Where forest cover exceeds this threshold,
the goal of no net loss in forest cover should be
pursued. In Urban Growth Areas, local govern-
ments should adopt goals to achieve 30-40 percent
ecologically healthy urban tree canopy coverage
and reduce impervious surfaces. Adopting goals
specific to riparian canopy could help prioritize
riparian restoration. Local education, outreach, and
incentive programs should be supported to in-
crease urban forestry programs and associated tree
canopy coverage.
»WQ5: Ensure cost-share agreements between
the U.S. Forest Service, Washington Department
of Natural Resources, Tacoma Water, and private
landowners are maintained and that road mainte-
nance and abandonment plans achieve sediment
reduction goals. Support opportunities to abandon
unnecessary forest roads as they are identified to
reduce overall road density.
»WQ6: Support regional and state legislative efforts
to reduce the risk of oil spills in Puget Sound and
ensure the state remains a leader in oil spill preven-
tion and response. Over 20 billion gallons of oil are
transported through Washington each year by ves-
sel, pipeline and rail. A catastrophic spill could cost
the region over $10 billion and impact over 150,000
jobs. It would also cause significant harm to aquatic
ecosystems and disrupt maritime industry, recre-
ation, and tourism.
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
58
»WQ7: Local governments should adopt the Inter-
agency Regional Road Maintenance Endangered
Species Act Program Guidelines, as amended, for
maintenance of existing infrastructure. Govern-
ments should participate in the associated Regional
Forum to support ongoing adaptive management to
improve outcomes.
Strategy: Protect, Restore and Enhance Marine Shorelines
Location: Marine Nearshore
Marine nearshore habitats, including beaches, pocket
estuaries, eelgrass beds, inlets, and deltas, provide
important rearing and migration habitat for juvenile
Chinook salmon and many other animals in Puget
Sound. They are also critical spawning habitat for
forage fish – a key prey species for Chinook salmon.
Decades of alteration and armoring of the Puget
Sound marine shoreline has reduced shoreline length
and habitat complexity, disrupted sediment supply
and transport, and eliminated forage fish spawning
habitat. Restoring natural shorelines will increase
nearshore productivity and salmon growth and
survival in the marine environment.
Figure 20. Before and after Phase II restoration of Seahurst Park in the City of Burien. Construction was
completed in 2014. Photos: Hugh Shipman.
Programs
»Develop/maintain a “Toolbox” of Shore Friendly
Alternatives for Privately-Owned Shorelines (aka
Do-it-yourself approach for residential shoreline
improvement)
WRIA 9 partners should develop a “shoreline
toolbox” to provide shoreline owners guidelines for
implementing shore friendly alternatives that clearly
outline stewardship concepts and best manage-
ment practices for private shorelines. It should not
only outline the range of alternatives for different
shoreline types (e.g., beach and bluffs), but also
highlight important design, feasibility, maintenance,
and permitting considerations when considering
shoreline improvements. Topic areas should include
native shoreline vegetation, erosion control, shore-
line access, docks, and stormwater management.
The toolbox should be designed to supplement
shoreline workshops and technical assistance
programs and could be made available online to
provide guidance to property owners who may
elect to take a “do-it-yourself approach” to shoreline
management. It should be tailored to reach private
landowners and contractors and connect them
with available local and regional resources. The
toolbox should draw from regional efforts such as
WDFW’s Marine Shoreline Design Guidelines, the
Shore Friendly King County collaborative, Green
Shores for Homes, and Green Shorelines for Lake
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
59
Washington and Lake Sammamish, and highlight
local examples of shore-friendly approaches within
WRIA 9.
»Expand Shore-Friendly Technical Assistance
and Cost-Share Programs to Accelerate Armor
Removal and Soft Shoreline Protection (aka
Supported Approach for Residential Shoreline
Improvement)
Access to technical information about shoreline
erosion and protection alternatives and the finan-
cial costs associated with marine shoreline armor
removal have been identified as key barriers to
motivating shoreline landowners to consider soft
shoreline protection. Soft shoreline protection is
less preferred than outright removal, but prefera-
ble to traditional hard armor in that it helps main-
tain and enhance some natural marine shoreline
functions (e.g., sediment transport and delivery).
Bulkhead removal is expensive and site-specific
erosion risk is not conducive to the use of standard
models or templates for soft shore protection. In
addition, many landowners and consultants are
unfamiliar with how to design/implement success-
ful soft shoreline protection projects. Technical
assistance to help landowners better understand
risk, to provide design and permitting support, and
to assist with access to cost-share funding should
help to overcome existing barriers to armor removal
on private property and promote expansion of soft
shoreline protection alternatives.
The King Conservation District (KCD) has histori-
cally provided technical assistance on environmen-
tally friendly ways to manage shoreline properties,
including shore-friendly alternatives to traditional
bulkheads. The KCD also has a cost-share incentive
program to encourage revegetation and removal of
existing armor and/or soft shore protection designs
where site-specific conditions allow. In 2020, KCD
established a Shore Friendly King County collabo-
rative between multiple partners. This program is
seen as part of a local adaptation of the regional
Shore Friendly approach to reducing marine shore-
line armoring. Although this is an existing program,
additional resources are needed to expand ca-
pacity. Landowners are identified through parallel
marine shoreline landowner workshops. Priority
should be given to currently unarmored shorelines
and armored properties where site-specific factors
(e.g., structure location, fetch, bank/bluff geology,
etc.) make armor removal and/or soft shoreline
protection alternatives feasible.
»Implement Acquisition Strategy to Protect and
Restore Functioning Nearshore Habitats
Acquisition of priority marine shorelines supports
conservation and restoration of critical nearshore
processes and rearing habitats used by multiple
stocks of juvenile Chinook – including Green/Du-
wamish Chinook. A number of planning efforts have
identified and prioritized conservation of nearshore
habitats within WRIA 9, including the Prioritiza-
tion of Marine Shorelines of WRIA 9 for Juvenile
Salmon Habitat Protection and Restoration (2006),
Vashon-Maury Island Greenprint (2007), and the
Puget Sound Nearshore Ecosystem Restoration
Project Strategies for Nearshore Protection and
Restoration in Puget Sound (2012). Although many
of the highest priority sites have been specifically
identified as unique projects within the Habitat
Plan, WRIA 9 should support opportunistic acquisi-
tion of other functioning nearshore habitats if they
become available.
Although the bulk of the acquisition opportu-
nities for functioning habitats are located on
Vashon-Maury Islands, additional opportunities
exist on the mainland nearshore. Successful im-
plementation of a nearshore acquisition strategy
requires consistent outreach to landowners and
operational flexibility to capitalize on acquisition
opportunities before they are lost. The sale of prop-
erties previously unavailable for decades frequently
can represent a once in a generational opportunity
to protect a priority stretch of marine shoreline. In-
dividual acquisition opportunities should be evalu-
ated based on ecological value/potential of near-
shore habitat and risk of development. Available
funding sources to support acquisition include King
County Conservation Futures, King County Flood
Control District Cooperative Watershed Manage-
ment Program and Coastal Erosion Program, Wash-
ington Department of Fish and Wildlife Estuary and
Salmon Restoration Program, and various Washing-
ton State Recreation and Conservation Office grant
programs.
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
60
Policies
»Nearshore (NS) 1: Avoid shoreline infrastructure or
stabilization except where demonstrated to be nec-
essary to support or protect a legally-established
primary structure, critical public infrastructure,
or shoreline use in danger of loss or substantial
damage. Support armor removal and alternative
approaches to shoreline stabilization (e.g., setbacks
and relocations) where feasible to reduce impacts
to existing natural shoreline processes. Protection
and restoration of important sediment sources
(e.g., feeder bluffs) is needed to restore nearshore
processes and sediment transport. Where the need
for bank stabilization is supported by analysis of
a geotechnical engineer, “soft” shoreline stabiliza-
tion techniques (e.g., bioengineering techniques
and vegetation enhancement) should be required
where feasible. “Soft” stabilization measures should
be designed to preserve or restore natural shoreline
processes (e.g., sediment transport). “Hard” shore-
line stabilization should only be allowed where
softalternatives do not provide adequate protection.
Refer to WDFW Marine Shoreline Design Guide-
lines, Green Shores for Homes, Integrated Stream-
bank Guidelines, and Stream Habitat Restoration
Guidelines for additional guidance.
Primary Structure: Structural
improvement that is essential to
the primary use of the property.
Structures that function as
secondary or subordinate to the
primary use of a property are
considered an accessory use.
»NS2: Encourage multiple family/neighborhood
use of docks, boat ramps, and beach access stairs.
Local jurisdictions should minimize impacts to the
nearshore marine environment by encouraging
consolidation/joint-use of structures that could
serve multiple landowners. Opportunities to pursue
joint-use should be evaluated during development
and redevelopment. Boat docks, ramps and beach
access stairs can shade aquatic vegetation, disrupt
juvenile salmon migration and foraging, alter near-
shore sediment transport and degrade nearshore
habitats (e.g., eelgrass). Possible incentives include
permit streamlining, fee reductions, and dimension-
al incentives (e.g., increased length, width, etc.).
»NS3: Jurisdictions should promote derelict vessel
prevention and coordinate with Washington State
Department of Natural Resources (WADNR) on der-
elict vessel removal. Derelict vessels can contribute
to contamination of aquatic lands, degrade water
quality, and damage sensitive aquatic habitats (e.g.,
eelgrass). Although the WADNR Derelict Vessel
Removal Program has removed more than 580 ves-
sels from marine waters, local efforts are critical to
ensuring effective prevention and rapid response.
»NS4: Support beach nourishment, where appropri-
ate, to offset interruption of natural sediment supply
and transport caused from extensive shoreline
modifications (e.g., bulkheads, etc.). Beach nourish-
ment has been used successfully to protect shore-
lines, restore natural beach profiles, and enhance
nearshore habitats.
»NS5: Support regional efforts to identify and test
actions to increase juvenile survival during outmi-
gration through Puget Sound and increase local ef-
forts to stabilize or improve foodweb function such
as forage fish habitat protection and restoration.
Strategy: Protect, Restore and Enhance Estuarine Habitat
Location: Duwamish
The Duwamish estuary provides critical rearing habi-
tat for juvenile salmon as they make the physiological
transition from fresh to saltwater habitats. Industri-
al development within the Duwamish valley drove
extensive fill of tidal wetlands, armoring of shore-
lines, and navigational dredging. The modifications
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
61
straightened the estuary and eliminated 98 percent of
the historic wetlands. Despite the magnitude of loss
of habitat, the Duwamish continues to play a critical
role in supporting juvenile Chinook salmon. Both
cleanup of legacy industrial contamination within the
Lower Duwamish Superfund Site and restoration of
shallow water rearing habitat are needed to increase
juvenile salmon survival and overall productivity with-
in the watershed.
Figure 21. Duwamish Gardens
created 1.3 acres of shallow water
rearing habitat in a critically important
transition zone of the Duwamish
Estuary. Subsequent monitoring has
documented extensive use of the site
by juvenile Chinook salmon.
Photo: Mike Perfetti.
Program
»Implement and Adaptively Manage the Duwa-
mish Blueprint
The Duwamish Blueprint outlines strategic guid-
ance for governments, businesses, non-profit or-
ganizations and citizen groups working to improve
the estuarine ecosystem and increase juvenile
salmonid productivity. It identifies approximately
100 acres of shallow water habitat restoration po-
tential within the Duwamish estuary transition zone
(RM 1-10). Many of the habitat opportunities are
conceptual and have not been prioritized. Periodic
evaluation of conceptual opportunities is needed to
elevate and refine project ideas as the Duwamish
landscape changes (e.g., Superfund cleanup, Natu-
ral Resource Damage Assessment [NRDA], and real
estate availability).
Restoration in the Duwamish is complex, expensive,
and will require flexibility, innovation, and extensive
coordination and collaboration to be successful.
The former Duwamish Blueprint Working Group,
which was convened to develop the Blueprint,
would provide a framework to facilitate coordina-
tion across key partners. WRIA 9 partners should
leverage the Blueprint Working Group to identify
opportunities to enhance partnerships to (1) pursue
larger project footprints; and (2) overcome barriers
to implementation. Given limited land availability,
WRIA 9 should opportunistically evaluate potential
acquisitions and consider elevating conceptual
projects as part of adaptive management based on
habitat benefit, acquisition feasibility, and readiness.
Policies
»Duwamish Estuary (DE) 1: Engage in the Lower
Duwamish Waterway (LDW) Superfund cleanup
process to coordinate and sequence potential
salmon habitat projects with Superfund activities
to maximize benefits to salmon recovery. Strategic
acquisition should be prioritized over habitat project
construction prior to competition of the LDW clean-
up to avoid potential contaminated sediments and
minimize potential for re-contamination.
»DE2: Engage with NRDA trustees and potentially
liable parties to inform project development and
design and maximize potential benefit to salmon re-
covery. NRDA settlements within the Duwamish will
result in large capital investments in habitat resto-
ration that should provide a significant lift to salmon
recovery. Coordination with the NRDA process will
also support identification of potential synergistic
opportunities, and help identify and resolve barriers
to maximize restoration outcomes. For example, it
may be possible to leverage NRDA settlements to
expand existing and/or planned restoration projects.
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
62
Although NRDA has a broader scope than Chinook
salmon recovery, priority NRDA habitats signifi-
cantly overlap with salmon recovery needs in
the Duwamish (e.g., estuarine marshes, intertidal
mudflats, and riparian habitats). Tracking NRDA
project implementation will be important to under-
standing the status of habitat restoration efforts
in the Duwamish. Given the existing uncertainty
associated with juvenile Chinook survival in the
Duwamish, WRIA 9 should engage with the trust-
ees to share emerging research, exchange lessons
learned in restoration, inform adaptive manage-
ment of restored sites, and identify priority sites for
restoration.
»DE3: Encourage the U.S. Army Corps of Engineers
and the Port of Seattle to identify strategies for
dredging that: (1) minimize impacts to salmon hab-
itat and (2) improve salmon habitat through use of
beneficial re-use where suitable. Soil contamination
may limit opportunities for re-use.
Strategy: Protect, Restore and Enhance Instream Flows and Cold Water Refugia
Location: Lower, Middle and Upper
Green
Green River flows are regulated to support both flood
control and water supply needs. The Tacoma Water
Habitat Conservation Plan requires maintenance of
minimum instream flows during summer months.
Although water capture and storage behind Howard
Hanson Dam (HHD) support maintenance of mini-
mum instream flows and periodic flow augmentations
during summer and early fall, it can also reduce the
frequency of high flow events that drive lateral chan-
nel migration (i.e., habitat forming flows) and availa-
bility of juvenile Chinook rearing habitat throughout
spring. Low snowpack and drought conditions ex-
acerbate already difficult tradeoffs in timing of water
release designated for fish conservation purposes.
Water temperatures also regularly exceed established
water quality standards for Salmon Core Summer
Habitat and Spawning Habitat.
Climate change forecasts predict the watershed will
experience reduced snowpack, lower summer time
flows, and elevated instream temperatures. These
changes will impact the already difficult reservoir
refill strategies at HHD, potentially putting greater
stress on refilling earlier and having a bigger impact
on juvenile Chinook habitat. Prolonged low flows
can cutoff access to critical rearing habitats and
exacerbate high instream temperatures. High water
temperatures can delay adult migrations, contribute
to increased susceptibility to disease, and even be
lethal above 23°C. Protecting instream flows and cold
water refugia is essential to strengthening watershed
resilience to climate change. Cold-water refugia are
characterized as being at least 2°C colder than the
daily maximum temperature of adjacent waters.
Programs
»Develop Watershed Management Plan to
Address Permit-Exempt Well Development
WRIA 9 partners should coordinate on develop-
ment of the Ecology’s Watershed Restoration and
Enhancement Plan to assess and offset potential
consumptive impacts of new rural, domestic water
use on stream flows in the Green/Duwamish water-
shed. Maintaining legally established minimum in-
stream flows has proven challenging during recent
years with below average precipitation. Climate
change models indicate that changes in precipita-
tion patterns could exacerbate streamflow issues
and further stress salmon.
Implementation of the plan is required to not
only offset permit exempt domestic water use,
but also provide for a net ecological benefit. The
legislature plans to direct $300 million in funding
through 2035 to benefit fish and streamflows. WRIA
9 should position itself to leverage this funding
source to support implementation of appropri-
ate projects in this plan that meet the flow or net
ecological benefit guidance and/or develop addi-
tional project elements that do so. If instream flows
remain problematic in the future, additional consid-
eration should be given to integrating other cate-
gories of water use into an expanded Watershed
Management Plan and implementation program.
»Develop a Strategy to Protect and Restore Habi-
tat in the Upper Green River and its Tributaries
Conduct a planning effort to develop a long-term,
comprehensive approach to protecting and restor-
ing ecosystem processes in the Upper Green River
subwatershed. Current checkerboard ownership
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
63
20132013
Figure 22. Before (2013) and after (2019) restoration photos of the Big Springs Creek. The project protected cool
waters from a natural spring.
complicates land management and a strategic
approach is needed to leverage the relatively intact
upper watershed to maximize benefits for salmon
and steelhead recovery. Access to the upper water-
shed has long been identified as critical to long-
term salmon recovery. However, the delay of fish
passage and the degraded condition of the lower
watersheds have resulted in limited investments in
the upper watershed.
Projected shifts in temperature and precipitation
patterns associated with climate change further
emphasize the critical importance of this landscape
to long-term salmon recovery. A number of assess-
ments should be completed to inform a strategic
approach to management of the upper watershed,
including:
• Visualizing Ecosystem Land Management As-
sessments (VELMA): Quantify long-term effects
of forest management and climate scenarios on
salmon habitat (i.e., hydrological flow regimes and
instream temperatures);
• Model intrinsic habitat value of stream segments
within the upper watershed to inform conserva-
tion and restoration priorities;
• Beaver Assessment: Assess current activity, mod-
el potential benefits, and explore potential reintro-
duction if warranted; and
• Assess important wildlife migratory corridors and
key landscape level linkages to inform acquisition
priorities.
The results of these assessments should be used to
prioritize salmon recovery investments in the upper
watershed with respect to potential land consolida-
tion, land use management changes, and potential
road abandonment.
Policies
»Stream Flows (SF)1: Support reevaluation of the
U.S. Army Corps of Engineers water storage sched-
ule and Fish Conservation Guide Curve at HHD to
increase benefits for salmonids while maintaining
downstream flood control benefits. The current
water capture period overlaps the juvenile
Chinook rearing period and impacts accessibility
and/or amount of important rearing habitats during
outmigration. Utilize the existing Green River Flow
Management Coordination Committee to assess
fish habitat needs based on best-available science
and basin-specific climate change projections.
»SF2: Protect existing cold water refugia and en-
hance water storage and hyporheic exchange
by reconnecting historic floodplain habitats to
instream habitats. These habitats facilitate heat
dissipation and provide an influx of cooler waters
to moderate seasonal fluctuations in stream tem-
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
64
peratures and flows, providing physiological and
ecological benefits for cold-water salmonids.
»SF3: Support forest management and harvest
rotation programs that increase hydrologic function
and improve base flows to minimize impacts on sal-
monid habitat, support climate change resiliency,
and maintain viable silviculture. Additional research
is necessary to quantify potential benefits.
»SF4: Manage groundwater in conjunction with
surface water withdrawals to provide instream
flows and water temperatures that support adult
salmonid spawning and juvenile rearing. Local gov-
ernments, water purveyors, and state and federal
regulators should:
• Protect groundwater resources and critical aqui-
fer recharge areas;
• Manage groundwater and surface water with-
drawals seasonally to maximize the benefits to
salmonid habitat;
• Develop drought management plans to supply
safe and reliable drinking water while minimizing
impacts to salmonids during periods of drought;
• Ensure rural domestic use does not adversely
impact salmonid habitat;
• Support water rights acquisition programs that
can augment chronic low flows; and
• Limit or preclude mining and other significant
excavation activities that could adversely impact
groundwater hydrology.
»SF5: Support expansion of reclaimed/recycled
wastewater to reduce demands on stream and
ground withdrawals. Reclaimed wastewater can
be used safely and effectively for non-drinking
water purposes such as landscape and agricultural
irrigation, heating and cooling, and industrial pro-
cessing. Reclaimed water is available year-round,
even during dry summer months or when drought
conditions can strain other water resources.
See also policies SW4-6 above.
Strategy: Expand Public Awareness and Education
Location: All subwatersheds
Education and outreach are fundamental to protect-
ing and restoring salmon. It raises awareness, builds
political support, and promotes positive behaviors
that benefit salmon. Long-term salmon recovery will
not be successful without public support. Broad-
based community support provides political leverage
to protect and expand local, state and federal invest-
ments in habitat restoration. It is also helps promote
positive behavior change and minimize behaviors that
can negatively impact salmon or undermine recovery
investments. For example, ecological gains associat-
ed with marine shoreline restoration in WRIA 9 have
been predominantly offset by new armor installations.
General outreach is not sufficient to drive widespread
and long-lasting behavior change. Targeted social
marketing strategies must identify and overcome
both real and perceived barriers to promote positive
behaviors that contribute to salmon recovery.
Programs
»Implement a Comprehensive Communications
Plan to Promote Behavior Change that Expedites
Salmon Recovery in WRIA 9
Integrate lessons learned from the regional Shore
Friendly programs into a locally adapted commu-
nication plan designed to increase implementation
of behaviors that support salmon recovery. Key
outcomes include:
• Increased public recognition of the urgency
around salmon recovery and connection to
southern resident orcas;
• Improved public understanding and stewardship
of riverine and nearshore ecosystem processes
that support salmon and forage fish;
• Technical assistance provided to interested
shoreline residents;
• Target audiences make informed decisions based
on knowledge of Shore Friendly practices, climate
resilience, and adaptation;
• A suite of tools and incentives developed to
address identified barriers to adoption of desired
behaviors;
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
65
• Messaging and outreach tailored to contractors
and realtors;
• The value of riparian vegetation is communicat-
ed to the public, including riverside landowners,
elected officials, and trail/park users; and
• Partners conducting outreach and education
receive positive reinforcement and feedback from
the salmon recovery community.
Additional effort is needed to refine target audi-
ences and develop associated social marketing
approaches. The intent of the communication plan
should be to build awareness, expand stewardship,
and promote advocacy. A regional Social Marketing
Strategy to Reduce Puget Sound Shoreline Armor-
ing was developed for the Washington Department
of Fish and Wildlife in 2015. A Green/Duwamish
River Revegetation Outreach and Engagement Plan
was developed in 2019. These plans provide an ex-
isting framework that can be expanded to integrate
other priority salmon recovery issues.
»Expand Volunteer Stewardship
Increase citizen participation through new steward-
ship programs and by expanding and supporting
existing stewardship programs that engage vol-
unteers in restoring, maintaining, and monitoring
habitat protection and restoration projects. These
projects not only benefit salmon recovery, but also
improve stormwater retention, carbon sequestration
and wildlife habitat and include important themes
and messages for participants to change behavior
at home. Local volunteer programs should:
• Foster environmental stewardship and personal
connection to salmon recovery;
• Educate people about threats to salmon and the
role of habitat in salmon recovery;
• Leverage additional resources to implement
recovery actions; and
• Expand the constituency to advocate for salmon
recovery.
The Green/Duwamish Watershed has a number of
volunteer stewardship programs that play an instru-
mental role in invasive vegetation removal and na-
tive revegetation. Many of these programs provide
long-term stewardship of large capital restoration
sites. Traditional salmon recovery funding is not
available to fund long-term (beyond two to three
years) stewardship and maintenance of restoration
sites. As a result, local funding or creative partner-
ships are essential to ensure restoration projects
achieve desired outcomes into the future.
»Expand Community Science Monitoring
Develop and implement community science pro-
grams to address data gaps and foster watershed
stewardship among residents. Community science
programs can provide capacity to collect important
long-term monitoring data while serving as an out-
reach tool to educate residents about local natural
resource issues. They can also create opportunities
to introduce students to scientific research and
provide important data for resource managers.
Since 2005, citizen science programs include:
• Beach Nearshore Ecology Team (BeachNet): The
Vashon Nature Center coordinates a forage fish
monitoring program that collects data on forage
fish presence/absence, spawning timing, beach
substrate preferences, and intertidal and upland
habitat conditions within the marine reserve. Data
are shared with WDFW and is used to inform
protection of spawning beaches. BeachNet also
contributes to shoreline restoration monitoring in
partnership with University of Washington, King
County, and the Washington State Department of
Natural Resources.
• Miller-Walker Basin Community Salmon Investi-
gation (CSI): The CSI program has conducted 10
years of salmonid spawning surveys to assess
long-term trends in salmon abundance and the
urban runoff mortality syndrome in coho salm-
on. Data are shared with local jurisdictions and
resource managers. A partnership with the UW
Tacoma Center for Urban Waters has helped
identify both the suite of toxic chemicals contrib-
uting to coho mortality and priority areas within
this watershed to focus future stormwater im-
provements.
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
66
Figure 23. A community volunteer examines a salmon carcass as part of the Miller/Walker Basin Community
Salmon Investigation. The program has leveraged community support and a partnership with the University
of Washington to advance our understanding of stormwater runoff impacts on local salmon. Photo: Miller/
Walker Stewardship Program.
»Shoreline Workshops and Technical Assistance
Implement workshops to educate target audiences
(landowners, landscapers, contractors) about
shoreline stewardship and common misconcep-
tions about shoreline erosion. Promote alternative
approaches to shoreline management that provide
for the use and enjoyment of property in a manner
that benefits fish and wildlife. Priority focus areas
include:
• Shoreline processes and salmon habitat;
• Erosion control;
• Noxious/invasive weed control;
• Revegetation guidance;
• Natural yard care; and
• Stormwater management.
Workshops should connect target audiences with
local and regional resources (e.g., technical assis-
tance) designed to overcome barriers to improving
shoreline stewardship. Materials and messaging
should be tailored to specific subwatersheds and
groups of landowners to increase effectiveness.
The Green Shores for Homes program developed
in 2015 is an available tool to guide the design of
improved shoreline conditions for Puget Sound
properties.
Policies
»Education and Stewardship (ES)1: Support edu-
cational programs that integrate watershed science
and salmon into problem-based learning exercises
for school children. These programs instill a sense
of place, encourage appreciation of natural resourc-
es, and promote environmental literacy among the
next generation of future decision makers.
»ES2: Support diverse outreach and education pro-
grams that promote awareness of salmon recovery
and positive behavior change. Programs should
employ community-based social marketing to iden-
tify and overcome barriers to targeted behaviors.
Priority focus areas include shoreline stewardship,
riparian revegetation, and stormwater manage-
ment.
Strategy: Integrate Agricultural Protection and Salmon Recovery Initiatives
Location: Lower and Middle Green
Salmon recovery and the preservation of viable
agriculture are two regional priorities that intersect
in the Middle and Lower Green floodplain and along
Newaukum Creek. King County designated over
16,295 acres of land within the Green River watershed
for agriculture within three Agricultural Production
Districts (APD). Some additional, but relatively small
amounts of agricultural activities occur within the
cities of Kent and Auburn. Over 5,763 acres of land
within the APD have been enrolled within the Farm-
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
67
land Preservation Program (FPP). Restrictive cove-
nants on FPP properties are designed to permanently
protect agricultural use and open space.
The 2005 Plan acknowledged that salmon recovery
and agricultural production operate within a shared
landscape along the Green River valley. It prioritized
sequencing of restoration projects over the first 10
years of plan implementation to focus first on existing
public lands, then on lands within the rural and urban
growth areas, and finally on lands within the APD, but
not enrolled in the FPP. The plan acknowledged that
projects that negatively impact tillable surface may
need to be reconsidered at a later date.
This Plan Update acknowledges that the implementa-
tion of high-priority salmon projects critically needed
to advance salmon recovery will result in localized
loss of existing farmland. Research indicates that
rearing habitat availability in the Lower and Middle
Green River is the primary limiting factor for Chinook
productivity within the watershed. Collaboration be-
tween agricultural and salmon recovery interests will
be necessary to identify and advance shared prior-
ities and ensure salmon and agriculture can coexist
productively within a shared landscape. Lessons
learned from other watersheds should be reviewed
for applicability within the Green River watershed.
Programs
»Farm Conservation Planning
Farm conservation plans can help landowners
protect natural resources while achieving their land
use goals. They can also help access and leverage
agricultural incentives to improve conservation
practices on agricultural lands. Priorities include
stream and wetland buffer revegetation and live-
stock management. Agriculture is widespread
throughout the Middle and Lower Green and farm-
land preservation is a regional priority. Expanding
riparian buffer revegetation on Green River valley
farms has the potential to greatly benefit salmon
recovery, especially where agricultural lands over-
lap with high priority areas identified by the Muck-
leshoot solar aspect shade maps (2014). Limiting
livestock access to stream buffers can also greatly
improve water quality and riparian conditions.
Available incentive programs include:
• King Conservation District rural services pro-
grams (e.g., Land Owner Incentive Program, Farm
Conservation Technical Assistance, and Agricul-
tural Drainage Program)
• King County Small Habitat Restoration Program
• USDA Farm Service Agency Conservation Re-
serve Enhancement Program
• King County Livestock Program (i.e., BMP cost
share)
Landowner recruitment is essential to program
success. Additional resources and strategies are
needed to expand participation.
Policies
»AG1: Protect, enhance, and restore high quali-
ty salmon habitat in the Agricultural Production
Districts in a manner that strives to reduce loss of
viable agricultural land and ensure the long-term
viability of agriculture. Projects that displace tillable
farmland should strive to provide benefits to adja-
cent farm lands in attempt to offset impacts.
Local governments, state and federal agencies,
non-profits, and special purpose districts should
work with agricultural landowners in the Agricultur-
al Production Districts to:
• Correct water quality problems resulting from
agricultural practices;
• Implement best management practices for live-
stock and horticulture;
• Prevent additional degradation or clearing of
forested riparian buffers;
• Encourage landowners to pursue voluntary sus-
tainable actions for fish, farms, and soils;
• Conduct compliance monitoring and regulatory
enforcement where necessary to protect critical
habitats;
• Identify opportunities where salmon recovery
projects can provide parallel benefits (e.g., flood
risk reduction and drainage improvements) to
adjacent agricultural lands; and
• Limit the extent of actively farmed lands dis-
placed by priority salmon restoration projects.
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
68
»AG2: Evaluate the effectiveness of the regulatory
flexibility given to agricultural landowners that
obtain a farm plan from the KCD. If the flexibility
leads to better habitat and water quality outcomes,
other opportunities should be explored to provide
additional flexibility. If the flexibility has not led to
better outcomes, the County should evaluate if
there are improvements to the regulatory structure
(e.g. require some amount of the farm plan be im-
plemented versus implementation being voluntary)
that would improve the outcomes of the flexible
approach.
Strategy: Integrate Salmon Recovery into Land Use Planning
Location: All Subwatersheds
Historical population growth and development within
the watershed displaced habitat, altered natural
hydrology, and polluted local waters. Local land use
plans should provide a blueprint for future growth
and development that is consistent with salmon
recovery. Land use decisions should reinforce the
importance of preservation of intact, functional hab-
itats and provide a pathway for restoration of priority
habitats. While the Salmon Habitat Plan is not a reg-
ulatory document, integration of identified recovery
strategies and habitat priorities within local land use
plans, policy and decision-making can accelerate
implementation and ultimately dictate success of
recovery efforts within the Green/Duwamish.
Programs
»Incentivize Voluntary Restoration Practices
Local governments and state agencies should pro-
mote landowner adoption of voluntary conserva-
tion and restoration actions through implementing
associated incentive programs. Regulatory com-
plexity, fees, access to technical assistance, and
project costs have all been identified as barriers
to expanding adoptions of voluntary best manage-
ment practices on private property. Priority areas to
address include invasive removal and native reveg-
etation along shorelines, soft shoreline stabilization,
and green stormwater infrastructure. Jurisdictions
should review existing barriers and evaluate incen-
tive opportunities, including:
• Streamlined permitting process;
• Reduced fees for restoration projects;
• Free technical assistance (e.g., engineering, plant-
ing plans, etc.);
• Cost share/financing programs; and
• Regulatory flexibility.
Voluntary adoption of best management practices
by private landowners has been sporadic. Addi-
tional targeted investments are needed to expand
implementation beyond early adopters. Improving
coordination and consistency across regulatory
jurisdictions (i.e., local, state and federal govern-
ments) is also needed to improve consistency and
reliability of the permitting process and increase
adoption of best management practices. A coordi-
nated effort across the watershed to identify target-
ed practices and assess best practices related to
available incentives could reduce costs and im-
prove efficiency. Using the Green Shores for Homes
or similar programs as an incentive-based program
to increase the number of properties that voluntari-
ly improve shoreline conditions on their property
should be explored.
»Regulatory Compliance Monitoring and Associ-
ated Enforcement
Jurisdictions should assess regulatory compli-
ance with shoreline master programs, critical area
protections, floodplain regulations, and agricultural
regulations (e.g., Livestock Management Ordi-
nance) to assess and improve protection of salmon
habitats. Regulatory compliance is fundamental to
achieving no net loss of ecological function along
marine and freshwater shorelines and to ensuring
that ongoing impacts to salmon habitat do not
undermine salmon recovery investments. Periodic
compliance monitoring should be used to assess
the status of jurisdictions and the status of local
regulatory implementation and to inform a strategic
approach to address shortcomings. If a regulatory
framework is not achieving intended outcomes,
local jurisdictions should assess changes to staffing
levels, outreach and education, technical training
for staff, interagency coordination, and enforcement
to improve compliance rates.
A WRIA 9 Marine Shoreline Monitoring and Com-
pliance Project (2018) found that only 42 percent
of shoreline modifications between 2013-2018
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
69
obtained local permits. Even fewer shoreline
modifications obtained a WDFW Hydraulic Project
Approval. Furthermore, more new shoreline armor
(mostly unpermitted) was constructed than re-
moved through restoration projects. These results
indicate that unpermitted shoreline modifications
are undermining salmon recovery investments and
overall efforts to achieve “no net loss of ecosystem
function” as required through the Shoreline Man-
agement Act. Jurisdictions should take a program-
matic approach to identify and address barriers
(e.g., permit fees, regulatory uncertainty/confusion)
to improve shoreline compliance rates and achieve
outcomes that protect salmon habitat. Coordination
and sharing of lessons learned across jurisdictions
and the larger Puget Sound are recommended to
improve efficiency.
Policies
»Land Use (LU)1: Ensure salmon recovery priorities
are integrated into long-range planning efforts,
including Shoreline Master Programs, Compre-
hensive Plans, and Open Space and Parks Plans.
Planning documents should be consistent with the
Salmon Habitat Plan and support implementation
of habitat protection and restoration priorities.
WRIA 9 should provide technical assistance to pro-
mote compatibility.
»LU2: Land use development, annexation, and cap-
ital improvement programs within the watershed
should be consistent with the salmon recovery
plan and promote progress towards achieving the
necessary future conditions (and associated imple-
mentation targets) for a viable salmon population.
Development proposals should be evaluated with
respect to impacts on key habitat indicators and
identified habitat projects for the respective subwa-
tershed.
»LU3: Local governments should use compre-
hensive plans and associated land use policies
to direct growth and development within existing
Urban Growth Areas (UGAs) to protect ecologically
important landscapes in rural areas. Specifically,
avoid future expansions to existing UGAs that could
result in additional land conversion and landscape
degradation.
»LU4: Strictly apply and improve compliance with
critical area, shoreline, vegetation conservation,
floodplain, and agricultural regulations designed to
protect important ecological habitats. Avoid use of
variances in priority areas identified for protection
and restoration in the salmon habitat plan.
»LU5: Local governments should support flexible
development tools that encourage protection and/
or restoration of ecologically important salmon
habitat. Possible tools include, but are not limited to,
transferable development rights, mitigation banking/
reserve programs, incentive zoning, Green Shores
for Homes, and Public Benefit Rating System tax
programs.
»LU6: WRIA 9 partners should incorporate sea level
rise projections into long-range planning docu-
ments, habitat project designs, and development
standards to promote long-term ecosystem resil-
iency. Nearshore habitats adjacent to armored
shorelines could be lost as water levels rise (i.e.,
coastal squeeze) if shorelines remain fixed. Low-
lying shoreline areas should be identified to support
landward migration of nearshore habitat as sea
levels rise where appropriate.
»LU7: Encourage certified development standards
(e.g., Built Green, Salmon-Safe Certification, and
Green Shores for Homes) that minimize the impacts
of urban development on the natural environment.
Incentives could include reductions in flexible
development standards, expedited permitting, and
reduced or waived permit costs.
»LU8: Incorporate Salmon-Safe Certification stan-
dards into best management practices for park and
grounds maintenance procedures. Certification is
available for parks system, golf courses, and urban
development. Salmon-Safe Certification is a peer-re-
viewed certification and accreditation program
that promotes practices that protect water quality,
improve watershed health and restore habitat.
»LU9: Local governments should evaluate shorelines
and critical areas, open space (e.g., parks and golf
courses), and public lands with respect to identified
salmon habitat priorities and notify WRIA 9 staff
prior to approving significant land use conversion, or
pursuing sale/exchange of public lands.
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
70
»LU10: Incorporate Green Shores for Homes Certifi-
cation standards into best management practices
for residential shoreline development. The WRIA
should support municipal efforts to establish a
Green Shores for Homes certification process
during permit review to help expedite permitting.
Green Shores for Homes is an EPA-funded certifica-
tion and accreditation program that was developed
by technical Shore Friendly design of shoreline
properties.
Plan Implementation and Funding
Location: All Subwatersheds
The WRIA 9 2016-2025 Interlocal Agreement provides
a framework for managing and coordinating imple-
mentation of the Salmon Habitat Plan. It recognizes
that salmon recovery transcends political bound-
aries and calls for strong collaboration between
local, state, and federal partners. Success hinges
on strong relationships, strategic coordination, and
collective action. Working effectively across such
a diverse landscape as the Green/Duwamish and
Central Puget Sound requires creative partnerships
with non-traditional partners. Leveraging shared
resources to implement multi-benefit projects will
help overcome land availability constraints and high
restoration costs.
Programs
»Basin Stewardship
Support and expand existing basin stewardship
programs across the Green/Duwamish subwater-
sheds. Basin stewards are instrumental to imple-
mentation of the salmon habitat plan. They advo-
cate for salmon recovery, coordinate across diverse
stakeholders, and build on-the-ground relationships
that facilitate large capital restoration projects. Key
tasks for basin stewardship include:
• Coordinating and implementing restoration proj-
ects;
• Coordination and collaboration across jurisdic-
tions;
• Securing grant funding (including grant writing)
for restoration and acquisition projects;
• Promoting voluntary stewardship on private
property;
• Responding to citizen inquiries concerning water-
shed issues; and
• Expanding public education and outreach oppor-
tunities
Basin stewardship covers the Middle and Lower
Green River sub-basins, Miller and Walker Creek
basins, and Vashon Island. Priorities for expan-
sion include mainland nearshore and Duwamish
sub-basins.
»Land Conservation Initiative (LCI)
The LCI represents a coordinated effort to preserve
river corridors, urban open space, trails, natural
lands, farmland and forestlands. It is a regional
collaboration between King County, cities, business
people, farmers, environmental partners, and others
to strategically preserve our last, most important
places. The initiative sets forth the goal of conserv-
ing and preserving 65,000 acres of high conser-
vation value lands throughout King County within
the next 30 years. The primary funding source is
the Conservation Futures Tax (CFT) fund, which is a
property tax on all parcels in the county.
The LCI is an important funding source for pursuing
open space acquisitions throughout the Green/
Duwamish watershed. WRIA 9 partners should
leverage the LCI to execute high-priority land
acquisitions within the Green River Corridor to
improve hydrological integrity, support salmon
recovery, and expand recreational opportunity.
Much of WRIA 9 is mapped as an “opportunity
area” where households lack access to open space.
Implementation of the LCI has the potential to align
salmon recovery investments with needed invest-
ments to address equitable access to open space
throughout the watershed.
»U.S. Army Corps Green/Duwamish Ecosystem
Restoration Program (ERP)
WRIA 9 partners should continue to engage U.S.
Army Corps leadership to advocate for appropri-
ation of funding to implement ERP projects. The
original collaborative effort resulted in identification
of 45 projects, 29 of which were carried forward in
the 2005 Salmon Habitat Plan. U.S. Congress autho-
rized $113 million in 2000 to be cost shared be-
tween the federal (65%) and local partners (35%).
Since the 2005 Plan, 13 of the original projects have
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 Update PAGE
71
been completed, with seven completed under the
ERP authorization (e.g., North Winds Weir, Codiga
Farms, Riverview Side Channel) and six completed
by local sponsors (e.g., Porter Levee Setback, Fen-
ster levee Setback, and Gale Creek).
The Congressionally authorized ERP represents
an important federal resource to support critically
needed and underfunded salmon restoration work
in the watershed. As of 2016, the ERP has only been
allocated 8.25 percent of the authorized amount. A
2018 Green/Duwamish ERP Comprehensive Cost
Update removed 12 projects based on the ratio of
perceived habitat value to cost and the presence
of hazardous materials. However, the recommend-
ed “de-scoped” plan still includes a number of
high-priority projects including NE Auburn Creek
and the Hamakami, Turley, and Lones levee setback
projects. The cost update for the modified ERP
scope is $260 million and the congressionally au-
thorized cost adjusted for inflation is $269 million.
Figure 24.
The Riverview Park
Project created
approximately 800 ft
of side channel to
increasing juvenile
Chinook rearing and
refuge habitat in the
Lower Green River. The
project, sponsored by
the City of Kent, was
constructed in 2012
in partnership with
the U.S. Army Corps
of Engineers under
the Green/Duwamish
Ecosystem Restoration
Project.
Photo: City of Kent.
Policies
»Implementation (I)1: The WRIA 9 2016-2025 Inter-
local Agreement outlines the governance, funding,
and decision-making structure for coordination and
implementation of the Salmon Habitat Plan.
»I2: Process-based habitat restoration – where
feasible – is preferable to other approaches that rely
on more intensive human intervention. However,
the magnitude of alteration within portions of the
watershed render true restoration of degraded pro-
cesses infeasible in some locations. Rehabilitation
and substitution projects require additional moni-
toring and maintenance to ensure desired functions
are achieved. WRIA 9 should support periodic
investments in adaptive management of completed
projects to ensure maximize long-term ecological
benefits.
»I3: Support use of mitigation funds to implement
priority salmon habitat enhancement projects. Off-
site mitigation programs (e.g., in-lieu fee and mitiga-
tion banking) can help improve ecological function
in critical locations (e.g., Chinook Wind in the
Duwamish Transition Zone) as a means of offsetting
unavoidable impacts in less sensitive areas of the
watershed. Development of mitigation opportuni-
ties should be coordinated with the WRIA to ensure
proposals are consistent with and do not preclude
identified salmon recovery priorities. The WRIA
should explore the potential for innovative partner-
ships that could combine mitigation and restoration
funding to expand the overall ecosystem benefit of
habitat projects. However, habitat improvements
AGENDA ITEM #6. e)
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan 2021 UpdatePAGE
72
associated with mitigation funds must be tracked
as separate and discrete from those achieved with
restoration-based grant funding.
»I4: Salmon recovery planning and habitat project
development should integrate social justice and
equity considerations. Public access and recre-
ational improvements should be considered where
demonstrated need exists and when compatible
with salmon recovery goals. WRIA 9 should seek
multiple benefit solutions that consider displace-
ment and social justice issues.
»I5: Coordinate Salmon Habitat Plan implementation
with other watershed-wide and regional initiatives
to identify synergies, leverage available funding,
avoid conflicts, and improve salmon recovery out-
comes. Existing watershed-wide and regional initia-
tives include the King County Flood Hazard Man-
agement Plan, King County Flood Control District
Lower Green River Corridor Plan, Lower Duwamish
Waterway Superfund Cleanup, Puget Sound Action
Agenda, Our Green Duwamish, WRIA 9 Watershed
Restoration Enhancement Committee, and the
Puget Sound South Central Action Area Local Inte-
grating Organization.
»I6: Support examining new funding sources and fi-
nancing strategies for implementing priority habitat
projects and programs throughout Puget Sound.
The WRIA 9 Watershed Forum will seek representa-
tion on regional committees tasked with the exam-
ination of public and private funding strategies at
the local and regional level.
»I7: Salmon recovery funding should support
adaptive management of previously constructed
projects where monitoring data shows design
changes are necessary to improve habitat function.
AGENDA ITEM #6. e)
PAGE
73 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Chapter 7:
Capital Projects
Salmon recovery capital projects preserve, enhance,
create or restore the habitats and physical processes
that support salmon. Projects include acquisition,
restoration, and/or enhancement approaches.
Although significant progress has been made im-
plementing projects identified in the 2005 Salmon
Habitat Plan, many projects remain unfunded and
under-resourced. Since 2005, 165 projects have been
completed or are in progress, totalling over $160
million of investments. While many of the remain-
ing projects identified within the 2005 Plan are still
viable, other opportunities have been lost to develop-
ment and/or a change in ownership.
This update provides a current, comprehensive list of
potential capital projects that align with established
goals for Chinook salmon recovery in WRIA 9. A
couple of plan amendments added new projects to
the 2005 Plan, including: a 2007 plan amendment;
and the 2014 Duwamish Blueprint. As part of the
2020 update, all projects described in the plan (and
its amendments) or the appendices of the plan were
evaluated for inclusion in updated project list.
WRIA 9 staff developed an updated list of capital
projects in partnership with ILA member jurisdic-
tions, non-profit partners, state agencies, and others
engaged in salmon recovery. Partners were asked to
submit projects and provide specific project infor-
mation including a project sponsor, location, scope,
goals, alignment with recovery strategies, and pro-
jected habitat gains. In some cases, an identified
project did not have a clear sponsor, but was includ-
ed due to the perceived importance of the project.
The request for projects primarily targeted Chinook
salmon-focused projects, but several coho salmon
projects were accepted.
A few additional project guidelines were developed in
refining the project list:
•Policies and Programs – Project submittals were
not required for actions that fell within the scope
of larger programmatic actions (e.g., fish barrier
removal).
•Discrete footprint – Projects were required to
articulate a specific project footprint to support
evaluation of feasibility and magnitude of ecologi-
cal benefit.
•Implementable within 10–15 years – Project spon-
sors were directed to submit projects that could be
implemented within a 10–15-year timeframe, provid-
ed adequate funding and landowner willingness.
AGENDA ITEM #6. e)
PAGE
74 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Project Prioritization
A team of subject matter experts was recruited to
review, evaluate and tier projects for inclusion in the
Plan. This four-person prioritization team brought
expertise in restoration ecology, fish biology, and
habitat project management, and over 50 years of
knowledge from working in the Green/Duwamish
River and Central Puget Sound. A balance of inter-
ests was represented to eliminate bias for specific
projects. The review process evaluated all concep-
tual projects based on their full potential to provide
habitat lift. Future constraints identified during design
and feasibility could impact overall project scope and
associated benefits.
Project prioritization was based on subject matter
expert evaluation of:
• Habitat Quality (lift): the relative importance and
value of a specific proposed habitat; and
• Habitat Quantity (size): the potential amount
(acreage and shoreline length) of habitat created or
enhanced based on the entire project footprint.
The scoring process was weighted so that habitat
quality comprised 75 percent of the score and habitat
quantity comprised 25 percent of the score. The tier-
ing process assumes habitat benefits are positively
correlated with size. Larger projects not only provide
more habitat, they allow increased habitat heteroge-
neity. Smaller, more homogeneous habitats, are less
resilient to perturbations, and site constraints can be
problematic for optimizing habitat. A small modifier
was added to allow consideration of high-value geo-
graphic locations (e.g., proximity to existing restora-
tion sites, feeder bluff, etc.). Potential lift reflects the
projected immediate and long-term habitat benefits
to addressing limiting factors for Chinook salmon re-
covery. Processed-based restoration was considered
to provide more certainty of long-term benefits.
A total of 118 projects were submitted and ranked as
part of the project solicitation process. Projects were
ranked within a specific subwatershed – not across
subwatersheds. Given the large number of projects,
projects were tiered based on overall benefit and to
provide an indication of priority for financial support
from the WRIA. Tiers were defined as follows:
• Tier 1 - high potential; substantially contribute to
recovery goals in each subwatershed.
• Tier 2 - moderate potential; clear alignment with
Chinook salmon recovery goals.
• Tier 3 - limited potential; associated with Chinook
recovery (or not primary species impacted); com-
pliments broader recovery efforts in the subwater-
shed.
A simplified scoring methodology based on habitat
quantity and quality provides a foundation for long-
term planning by setting high-level implementation
priorities within each subwatershed. Tiers were as-
signed to projects by identifying natural breakpoints
in the full list of projects within a subwatershed.
These established breakpoints serve as a scoring
baseline for projects received through future biennial
calls for projects. Future proposed projects will be
scored under the same criteria and assigned a tier.
The proposed project will be added to the tiered list
for future funding, with near-term funding priority giv-
en to those projects previously identified as in need
of funding.
The final list of projects was approved unanimously
by the Implementation Technical Committee and Wa-
tershed Ecosystem Forum in 2019 and will serve as
the comprehensive list of recovery actions that help
achieve recovery goals, and ultimately toward the
delisting of Chinook salmon in Puget Sound.
19Duwamish(DUW)
Middle
Green (MG)
Lower
Green (LG)
1
Upper Green
(UG)
Number
of WRIA 9
Projects by
Subwatershed
39
Nearshore
(NS)
14
45
Figure 25. Number of projects by subwatershed.
AGENDA ITEM #6. e)
PAGE
75 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Capital Project Information by
Subwatershed containing:
• Subwatershed project location maps
• Subwatershed project listings with tier rankings
• Project fact sheets with site maps
Marine Nearshore Subwatershed ................................p. 76
Duwamish Estuary Subwatershed .............................p. 102
Lower Green River Subwatershed ..............................p. 116
Middle Green River Subwatershed ............................p. 146
Upper Green River Subwatershed ............................p. 160
AGENDA ITEM #6. e)
Marine Nearshore Subwatershed 39 projects
Tier 1 (Score 18+) 17 projects
Tier 2 (Score 7-18) 8 projects
NS-2 ...........Myrtle Edwards Park Pocket Beach Shallow
Water Habitat
NS-16 .........Dash Point State Park Estuary Restoration
and Water Quality Improvements
NS-22 ........Smith Cove Shallow Water Rehabilitation
NS-35 ........Lower Shinglemill Creek habitat restoration
NS-39 ........Walker Creek Headwaters Land Acquisition
NS-40 .......Salmon Creek Fish Barrier Removal
NS-42 ........Miller Creek Regional Detention Facility
NS-54 ........West Galer Street/32nd St. Boat Ramp
Shoreline Armor Removal and Restoration
NS-58 ........Tsugwalla Creek Pocket Estuary Restoration
Project
NS-59 ........Mileta Armor removal and shoreline
restoration
NS-68........Longfellow Creek Fish Passage and
Floodplain Restoration
NS-70 ........Fauntleroy Creek Fish Passage
NS-72 ........Perkins Lane Protection and Restoration
Project/Perkins Lane Utility Access Road
NS-73 ........Beall Creek Salmon Habitat Project
Tier 3 (Score <7) 14 projects
PAGE
76 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
NS-7 ...........Cove Creek Pocket Estuary Restoration
NS-8 ..........Dillworth and Gorsuch Creek Pocket
Estuaries
NS-11 ..........Beaconsfield on the Sound
NS-15 .........McSorley Creek Pocket Estuary and Feeder
Bluff restoration
NS-21 .........Corbin Beach Acquisition and Restoration
NS-23 ........Point Heyer Nearshore Acquisitions
NS-24 ........Cross Landing Pocket Estuary Restoration
NS-28 ........Big Beach Reach Acquisition and
Restoration
NS-29 ........Maury Island Natural Area Revegetation and
Reclamation
NS-43 ........Dockton Reach Preservation and Restoration
NS-45 ........Tahlequah Creek Mouth Restoration
NS-49 ........Arroyos Park Bulkhead Removal
NS-53 ........Perkins Lane Protection and Restoration
NS-61 .........Manzanita Reach Acquisition and Restoration
NS-62 ........Spring Beach Acquisition and Restoration
NS-63 ........Green Valley Creek Acquisition and
Restoration
NS-66........Camp Kilworth Protection
NS-13 .........Massey Creek Pocket Estuary and Fish
Passage Project
NS-14 .........Raab’s Lagoon Acquisition and Restoration
NS-25 ........Judd Creek Pocket Estuary
NS-27 ........Piner Point Acquisition and Restoration
NS-31 .........Discovery Park Feeder Bluff Protection and
Restoration
NS-44........Portage Salt Marsh Restoration
NS-60 .......Ellisport Creek Mouth Restoration
NS-67 ........Des Moines Creek Estuary Restoration
AGENDA ITEM #6. e)
PAGE
77 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
509
518
99
99
99
5
5
5
Miller Cr
Puget
Sound
Elliott
Bay
NS-28
NS-27NS-61NS-62
NS-43
NS-24
NS-63
NS-21
NS-8NS-7
NS-2
NS-68
NS-72
NS-70
NS-45
NS-73
NS-35
NS-29
NS-60
NS-59
NS-58
NS-66
NS-16
NS-67
NS-13
NS-42
NS-40
NS-49
NS-54
NS-53
NS-31
NS-22
NS-11
NS-25
NS-15
NS-14
NS-39
NS-23
NS-44
NS-23
SEATTLE
SEATTLE
Vashon
Island
Maury Island
SEATAC
FEDERAL WAY
BURIEN
DES
MOINES
DES
MOINES
NORMANDY
PARK
NORMANDY
PARK
River mile
Project location and name
Project location and name
River/creek
Major road
King County boundary
Maine Nearshore
Subwatershed
boundary
WRIA 9 boundary
Public lands
Parks
Incorporated area
Open water
1
NS-1
NS-1
0 1 2 3 Miles
N
Note:The use of the information in this map issubject to the terms and conditions found at: www.kingcounty.gov/services/gis/Maps/terms-of-use.aspx. Your access and use is conditioned on your acceptance of these terms and conditions.
KCIT-DCE File: 2011_10202L_W9SHP_ProjMap_NS.ai LPRE
GIS File:Q:\20009\WRIA9_Watershed.mxd KLINKAT
Figure 26.
Marine Nearshore
Subwatershed Projects
AGENDA ITEM #6. e)
NS-7
Agren ParkWestside Hwy SWMcIntyre Rd SWSW Cove Rd
Puget
Sound Vashon
Island
UNINCORPORATED KING COUNTY
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
N0200400 ft.Public
Lands Park
RestorationAcquisition
$
Nearshore
Feeder Blu
Nearshore
Pocket Estuary
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Shoreline armor reduction
Contribution to goals metrics:
• Marine riparian vegetation
• Shoreline armor
PROJECT DESCRIPTION:
Protect and improve riparian vegetation, improve
tributary access, remove armoring and fill,
increase vegetated shallow nearshore and marsh
habitats, protect and enhance pocket estuaries
and tributary stream mouths.
Tier 1 Project: NS-7
Cove Creek Pocket Estuary Restoration
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
Vashon/Maury Island
(KI – 13-28; KI - 11-7)
Banksidejurisdiction:
Vashon/Maury
Project sponsor:
King County
Budget:
$600,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: WDOE Shoreline Photo Viewer Images, 2020
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
PAGE
78 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
NS-8
HitchingsProperty86th Pl SW87th Ave SW90th Ave SWSW Dilworth Rd
91st Ave SWSW Soper Rd
SW Gorsu
c
h
R
d
Puget
Sound
Vashon Island
K ING C OUNT YSeattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
N0200400 ft.Public
Lands Park
RestorationAcquisition
$
Nearshore
Pocket Estuary Riparian
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Increased rearing habitat
• Shoreline armor reduction
Contribution to goals metrics:
• Marine riparian vegetation
• Shoreline armor
• Shoreline conservation
PROJECT DESCRIPTION:
Acquire properties at the mouth of Dillworth
and Gorsuch Creeks to restore stream delta
and pocket estuary habitat.
Tier 1 Project: NS-8
Dillworth and Gorsuch Creek Pocket Estuaries
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
Vashon/Maury
(KI - 12 - 4)
Banksidejurisdiction:
Vashon/Maury
Project sponsor:
King County
Budget:
$3,000,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: WDOE Shoreline Photo Viewer Images, 2020
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
UNINCORPORATEDKING COUNTY
PAGE
79 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
NS-11
Marine ViewParkMar
ine
V
iew
D
r
SW
Puget Sound
NORMANDY PARK
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
N0200400 ft.Public
Lands Park Incorp. Area
Boundary
RestorationAcquisition
$
Nearshore
Feeder Blu
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Reconnect historic feeder blus
• Shoreline armor reduction
Contribution to goals metrics:
• Shoreline armor
PROJECT DESCRIPTION:
Protect and restore 1085 ft. of active feeder blu
along mainland marine nearshore.
Tier 1 Project: NS-11
Beaconsfield on the Sound
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
Normandy Park
(KI-7-3)
Banksidejurisdiction:
Normandy Park
Project sponsor:
Normandy Park
Budget:
$600,000
PROJECT TYPE:
KEY HABITAT:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: WDOE Shoreline Photo Viewer Images, 2020
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
NS-15
Saltwater State ParkMa
r
in
e
V
i
ew
D
r
S
Puget
Sound
DES MOINES
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
N0200400 ft.Public
LandsPark Incorp. Area
Boundary
Restoration
Acquisition
$
NearshoreFeeder Blu
Monitoring &Assessment
Enhancement/Planting
Nearshore
Pocket Estuary
Planning/Design
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Improved forage fish spawning habitat
• Recreation opportunities
• Shoreline armor reduction
Contribution to goals metrics:
• Marine riparian vegetation
• Shoreline armor
PROJECT DESCRIPTION:
Restore historic pocket estuary, protect feeder
blus, remove marine shoreline armoring and
enhance low-impact recreational activities.
Tier 1 Project: NS-15McSorley Creek Pocket Estuary and Feeder Bluff Restoration
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
Des Moines (KI - 8 - 3)
Banksidejurisdiction:
Federal Way
Project sponsor:
Des Moines
Budget:
$20,838,000
PROJECT TYPE:
KEY HABITAT:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: WDOE Shoreline Photo Viewer Images, 2020
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
PAGE
80 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
NS-15
Saltwater State ParkMa
r
in
e
V
i
ew
D
r
S
Puget
Sound
DES MOINES
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
N0200400 ft.Public
LandsPark Incorp. Area
Boundary
Restoration
Acquisition
$
NearshoreFeeder Blu
Monitoring &Assessment
Enhancement/Planting
Nearshore
Pocket Estuary
Planning/Design
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Improved forage fish spawning habitat
• Recreation opportunities
• Shoreline armor reduction
Contribution to goals metrics:
• Marine riparian vegetation
• Shoreline armor
PROJECT DESCRIPTION:
Restore historic pocket estuary, protect feeder
blus, remove marine shoreline armoring and
enhance low-impact recreational activities.
Tier 1 Project: NS-15McSorley Creek Pocket Estuary and Feeder Bluff Restoration
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
Des Moines (KI - 8 - 3)
Banksidejurisdiction:
Des Moines
Project sponsor:
King County/
State Parks
Budget:
$20,838,000
PROJECT TYPE:
KEY HABITAT:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: WDOE Shoreline Photo Viewer Images, 2020
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
PAGE
81 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
Burma Rd S
W
NS-21
Puget
Sound
Vashon
Island
UNINCORPORATED KING COUNTY
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
N0200400 ft.Public
Lands
Project
Area
RestorationAcquisition
$
NearshoreFeeder Blu
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Reconnect historic feeder blus
• Shoreline armor reduction
Contribution to goals metrics:
• Marine riparian vegetation
• Shoreline armor
• Shoreline conservation
PROJECT DESCRIPTION:
Acquire to protect and restore nearshore habitat
by removing shoreline debris, hard armor, and
derelict docks.
Tier 1 Project: NS-21
Corbin Beach Acquisition and Restoration
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
Vashon/Maury Island
(KI 11-2)
Banksidejurisdiction:
Vashon/Maury
Project sponsor:
King County
Budget:
$3,500,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: Google Earth
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
PAGE
82 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
NS-23NS-23
Vashon Commons
Point HeyerNatural Area
Ellisport Wildlands
OberPark
87th Ave SWSW Cemetery Rd
Monument Rd SWDockton R
d
SW
SW Cove Rd
Beall Rd SWSW Bank Rd
SW 204th St SW Elli
s
port Rd
Geor
ge Ed
wards RdVashon Hwy SWPuget
Sound
0 3,000 Feet
Vashon
Island
UNINCORPORATED KING COUNTY
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
NPublic
Lands Park Project
Area 0 2,000 ft.
RestorationAcquisition
$
Nearshore
Feeder Blu
Riparian
Project Area Map: Ortho2019KCNAT aerial photo Site photo: WDOE Shoreline Photo Viewer Images, 2020
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Habitat preservation
• Recreation opportunities
• Shoreline armor reduction
Contribution to goals metrics:
• Marine riparian vegetation
• Shoreline armor
• Shoreline conservation
PROJECT DESCRIPTION:
Acquire properties to protect and restore beach
feeding processes and salt marsh at spit.
Tier 1 Project: NS-23
Point Heyer Nearshore Acquisitions
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
Vashon/Maury
(KI - 13 - 2)
Banksidejurisdiction:
Vashon/Maury
Project sponsor:
King County
Budget:
$10,000,000
PROJECT TYPE:
KEY HABITAT:
PAGE
83 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
PAGE
84 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
NS-28
Frog Holler
Forest Trails
Frog HollerForest
LostLake
SpringBeachSpringBeach
Neill PointNatural Area
Spring BeachNatural AreaSpring BeachNatural Area
Lost LakeNatural Area
Inspiration Pt.Natural Area
Forest Glen Natural Area
Manzanita Natural Area
Inspiration Point
Wax Orchard Rd SWVashon Hwy SWVashon Hwy SWPuget Sound
Puget Sound
Maury
Island
Vashon
Island
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
NProject
Area 0 2,000 ft.Public
Lands Park Trail
RestorationAcquisition
$
Nearshore
Feeder Blu
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Reconnect historic feeder blus
• Shoreline armor reduction
Contribution to goals metrics:
• Marine riparian vegetation
• Shoreline armor
• Shoreline conservation
PROJECT DESCRIPTION:
Acquire to protect and restore about
209 acres of upland and nearshore habitat with
approximately 4615 feet of blu-backed beach
shoreline.
Tier 1 Project: NS-28
Big Beach Reach Acquisition and Restoration
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
Vashon/Maury Island
(KI 13-20)
Banksidejurisdiction:
Vashon/Maury
Project sponsor:
King County
Budget:
$15,000,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: WDOE Shoreline Photo Viewer Images, 2020
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
NS-24
147th Ave SW147th Ave SWRaymond Rd SWRaymond Rd SWSW Reddings Beach RdSW Reddings Beach RdSW ReddingsBeach Rd
SW ReddingsBeach Rd
SW Cross Landing Rd
145
th
P
l
SW
145
th
P
l
SW
UNINCORPORATED KING COUNTY
Vashon
IslandPuget
Sound
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
NProject
Area
0 200 400 ft.Public
Lands
RestorationAcquisition
$
Nearshore
Pocket Estuary Riparian
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Shoreline armor reduction
Contribution to goals metrics:
• Marine riparian vegetation
• Shoreline armor
• Shoreline conservation
PROJECT DESCRIPTION:
Acquire beach feeding parcels, remove fill,
restore salt marsh, remove road, and reroute road
drainage.
Tier 1 Project: NS-24
Cross Landing Pocket Estuary Restoration
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
Vashon/Maury
(KI – 13 – 23)
Banksidejurisdiction:
Vashon/Maury
Project sponsor:
King County
Budget:
$3,500,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: WDOE Shoreline Photo Viewer Images, 2020
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
AGENDA ITEM #6. e)
PAGE
85 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
NS-28
Frog Holler
Forest Trails
Frog HollerForest
LostLake
SpringBeachSpringBeach
Neill PointNatural Area
Spring BeachNatural AreaSpring BeachNatural Area
Lost LakeNatural Area
Inspiration Pt.Natural Area
Forest Glen Natural Area
Manzanita Natural Area
Inspiration Point
Wax Orchard Rd SWVashon Hwy SWVashon Hwy SWPuget Sound
Puget Sound
Maury
Island
Vashon
Island
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
NProject
Area 0 2,000 ft.Public
Lands Park Trail
RestorationAcquisition
$
Nearshore
Feeder Blu
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Reconnect historic feeder blus
• Shoreline armor reduction
Contribution to goals metrics:
• Marine riparian vegetation
• Shoreline armor
• Shoreline conservation
PROJECT DESCRIPTION:
Acquire to protect and restore about
209 acres of upland and nearshore habitat with
approximately 4615 feet of blu-backed beach
shoreline.
Tier 1 Project: NS-28
Big Beach Reach Acquisition and Restoration
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
Vashon/Maury Island
(KI 13-20)
Banksidejurisdiction:
Vashon/Maury
Project sponsor:
King County
Budget:
$15,000,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: WDOE Shoreline Photo Viewer Images, 2020
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
AGENDA ITEM #6. e)
PAGE
86 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
NS-43
Dockton Forest,Dockton Natural Area andMaury Is. Natural Area Trails
Maury IslandNatural Area
DocktonForest
Dockton Natural Area
DocktonPark
99th Ave SWDockton Rd SWSW
D
o
c
k
S
t
Puget Sound
PROJECT AREA MAP
N05001,000 ft.Public
Lands
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
RestorationAcquisition
$
Nearshore
Feeder Blu
Scoping/
Reconnaissance
Riparian
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Shoreline armor reduction
Contribution to goals metrics:
• Marine riparian vegetation
• Shoreline armor
• Shoreline conservation
PROJECT DESCRIPTION:
Restore 2000 feet of marine shoreline in the
Maury Island Aquatic Reserve.
Tier 1 Project: NS-43
Dockton Reach Preservation and Restoration
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
Vashon/Maury
(KI - 13 - 8)
Banksidejurisdiction:
Vashon/Maury
Project sponsor:
King County
Budget:
$2,600,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: WDOE Shoreline Photo Viewer Images, 2020
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
Park Trail
Maury
Island
UNINCORPORATED KING COUNTY
NS-29UFOErraticFeeder LineMI
N
A
TMINATDockton
Forest Trails
M I N A T (M aury Island N atu ra l A r e a T r a ils )MINA T
Gravel GrinderMaury IslandNatural Area
DocktonForest
Puget Sound
PROJECT AREA MAP
N0200400 ft.Park TrailSW 275th Sandy Shores Dr SWK ING C OUNT Y
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
Restoration
Nearshore
Feeder Blu
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Improved forage fish spawning habitat
• Recreation opportunities
• Shoreline armor reduction
Contribution to goals metrics:
• Marine riparian vegetation
PROJECT DESCRIPTION:
Remove invasive species, add topsoil, and
revegetate about a mile of marine shoreline.
Tier 1 Project: NS-29
Maury Island Natural Area Revegetation and Reclamation
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
Vashon/Maury
(KI - 14 - 2)
Banksidejurisdiction:
Vashon/Maury
Project sponsor:
King County
Budget:
$1,050,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: WDOE Shoreline Photo Viewer Images, 2020
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
Green River Trail - Kent
Vashon
Island
UNINCORPORATED KING COUNTY
AGENDA ITEM #6. e)
PAGE
87 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
NS-43
Dockton Forest,Dockton Natural Area andMaury Is. Natural Area Trails
Maury IslandNatural Area
DocktonForest
Dockton Natural Area
DocktonPark
99th Ave SWDockton Rd SWSW
D
o
c
k
S
t
Puget Sound
PROJECT AREA MAP
N05001,000 ft.Public
Lands
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
RestorationAcquisition
$
Nearshore
Feeder Blu
Scoping/
Reconnaissance
Riparian
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Shoreline armor reduction
Contribution to goals metrics:
• Marine riparian vegetation
• Shoreline armor
• Shoreline conservation
PROJECT DESCRIPTION:
Restore 2000 feet of marine shoreline in the
Maury Island Aquatic Reserve.
Tier 1 Project: NS-43
Dockton Reach Preservation and Restoration
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
Vashon/Maury
(KI - 13 - 8)
Banksidejurisdiction:
Vashon/Maury
Project sponsor:
King County
Budget:
$2,600,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: WDOE Shoreline Photo Viewer Images, 2020
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
Park Trail
Maury
Island
UNINCORPORATED KING COUNTY
AGENDA ITEM #6. e)
PAGE
88 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
NS-45
Point Defiance- Tahlequah Ferry Loading DockVashon Hwy SWSW
P
o
h
l
R
d
SW
T
a
h
l
e
q
u
a
h
R
d 131st Ave SWPuget Sound
Tahlequah Cr.Tahlequah Cr.Slai
g
h
t
e
r
’
s
C
r
.
PROJECT AREA MAP
N0200400 ft.Public
Lands
K ING C OUNT YSeattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
RestorationAcquisition
$
Nearshore
Feeder Blu
Nearshore
Pocket Estuary
Riparian
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Improved forage fish spawning habitat
• Shoreline armor reduction
Contribution to goals metrics:
• Marine riparian vegetation
• Shoreline armor
PROJECT DESCRIPTION:
Acquire properties, restore creek meander and
fish passage, remove bulkhead, and restore
nearshore, estuary and marsh habitat.
Tier 1 Project: NS-45
Tahlequah Creek Mouth Restoration
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
Vashon/Maury Island
(KI - 13 - 21, KI - 13 - 22)
Jurisdiction:
Vashon/Maury
Project sponsor:
Vashon/Maury
Budget:
$7,000,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: WDOE Shoreline Photo Viewer Images, 2020
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
Vashon
Island
UNINCORPORATED KING COUNTY
NS-49
Arroyos Natural Area
Arroyo Heights Park
Arroyo Heights Park
SW 106th St
SW 108th St
M
arin
e Vie
w Dr S
WPuget Sound
Seattle
Park
PROJECT AREA MAP
N0200400 ft.Public
Lands
K ING C OUNT Y
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
Park
Restoration
Nearshore
Planning/
Design
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Habitat preservation
• Recreation opportunities
• Shoreline armor reduction
Contribution to goals metrics:
• Shoreline armor
• Shoreline conservation
PROJECT DESCRIPTION:
Remove approximately 700 feet of rip rap and
timber bulkhead along the shoreline.
Tier 1 Project: NS-49
Arroyos Park Bulkhead Removal
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
City of Seattle (KI -5 - 1)
Banksidejurisdiction:
City of Seattle
Project sponsor:
Seattle Parks and
Recreation
Budget:
$2,500,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: WDOE Shoreline Photo Viewer Images, 2020
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
AGENDA ITEM #6. e)
PAGE
89 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
NS-49
Arroyos Natural Area
Arroyo Heights Park
Arroyo Heights Park
SW 106th St
SW 108th St
M
arin
e Vie
w Dr S
WPuget Sound
Seattle
Park
PROJECT AREA MAP
N0200400 ft.Public
Lands
K ING C OUNT Y
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
Park
Restoration
Nearshore
Planning/
Design
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Habitat preservation
• Recreation opportunities
• Shoreline armor reduction
Contribution to goals metrics:
• Shoreline armor
• Shoreline conservation
PROJECT DESCRIPTION:
Remove approximately 700 feet of rip rap and
timber bulkhead along the shoreline.
Tier 1 Project: NS-49
Arroyos Park Bulkhead Removal
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
City of Seattle (KI -5 - 1)
Banksidejurisdiction:
City of Seattle
Project sponsor:
Seattle Parks and
Recreation
Budget:
$2,500,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: WDOE Shoreline Photo Viewer Images, 2020
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
AGENDA ITEM #6. e)
NS-53
MagnoliaPark
Magnolia
Tidelands Park
MagnoliaPlayfieldParkmontPlaceCarletonCenter
EastmontPlace
Public
Lands ParkPublic
Lands Park
Mag
n
o
l
i
a
B
l
v
d
W
W McGraw St
Viewmont Way WMontavistaPl WWest Vi
ewm
ont Way W 34th Ave WW Lynn St
34th A
v
e
W
Puget Sound
Seattle
0 200 400
PROJECT AREA MAP
N0200400 ft.
K ING C OUNT Y
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
Public
Lands Park
RestorationAcquisition
$
Nearshore
Feeder Blu
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Habitat preservation
• Reconnect historic feeder blus
• Shoreline armor reduction
Contribution to goals metrics:
• Shoreline conservation
PROJECT DESCRIPTION:
Acquire properties to remove old bulkheads and
fill.
Tier 1 Project: NS-53
Perkins Lane Protection and Restoration
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
City of Seattle (KI - 3 - 2)
Banksidejurisdiction:
City of Seattle
Project sponsor:
Seattle Parks and
Recreation
Budget:
TBD
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: WDOE Shoreline Photo Viewer Images, 2020
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
PAGE
90 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
NS-28NS-61
Lost Lake
Lost Lake Natural Area
Northilla Beach Natural Area
Manzanita Natural Area
Inspiration Point Natural Area
Hake Rd SW101st Ave SWSW Nor
t
h
i
l
l
a
R
d
SW 268th St
101st Ave SWSW 280th St
Ma
n
z
a
n
i
t
a
B
e
a
c
h
R
d
SW
Puget Sound
PROJECT AREA MAP
N
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
Public
Lands ParkPublic
Lands Park 0 1,000 ft.500
RestorationAcquisition
$
Nearshore
Pocket Estuary
Riparian
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Improved forage fish spawning habitat
• Reconnect historic feeder blus
• Shoreline armor reduction
Contribution to goals metrics:
• Marine riparian vegetation
• Shoreline armor
• Shoreline conservation
PROJECT DESCRIPTION:
Acquire properties to remove old bulkheads and
fill.
Tier 1 Project: NS-61
Manzanita Reach Acquisition and Restoration
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
Vashon/Maury (KI - 10 - 3)
Banksidejurisdiction:
Vashon/Maury
Project sponsor:
King County
Budget:
$15,000,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: WDOE Shoreline Photo Viewer Images, 2020
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
Maury
Island
UNINCORPORATED KING COUNTY
PAGE
91 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
Spring Beach
Spring BeachNatural Area
SW Spring Beach Rd139th Ave SW141st Ave SW143rd Ave SWSW
P
o
h
l
R
d
Puget Sound
PROJECT AREA MAP
N
K ING C OUNT YSeattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
Public
Lands ParkPublic
Lands Park 0 800 ft.400
RestorationAcquisition
$
Nearshore
Pocket Estuary
Riparian
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Improved forage fish spawning habitat
• Shoreline armor reduction
Contribution to goals metrics:
• Marine riparian vegetation
• Shoreline armor
• Shoreline conservation
PROJECT DESCRIPTION:
Acquire to protect and restore shoreline and
forage fish habitat.
Tier 1 Project: NS-62
Spring Beach Acquisition and Restoration
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
Vashon/Maury (KI - 10 - 3)
Banksidejurisdiction:
Vashon/Maury
Project sponsor:
King County
Budget:
$5,000,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: WDOE Shoreline Photo Viewer Images, 2020
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
NS-62
Vashon
Island
UNINCORPORATED KING COUNTY
PAGE
92 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
SW 207th Ln
SW 208th St
SW 216th St SW Mad
rona
Rd141st Ave SW135th Ave SWS
W
M
a
d
r
o
n
a
R
d SW Madrona RdPuget
Sound
Green Valley Cr.
PROJECT AREA MAP
N0200400 ft.
K ING C OUNT YSeattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
Public
Lands
Public
Lands
RestorationAcquisition
$
Nearshore
Pocket Estuary
Riparian
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Improved forage fish spawning habitat
• Reconnect historic feeder blus
• Shoreline armor reduction
Contribution to goals metrics:
• Marine riparian vegetation
• Shoreline armor
• Shoreline conservation
PROJECT DESCRIPTION:
Acquire undeveloped lots along the Green Valley
Creek, restore creek mouth, and remove hard
shoreline armor.
Tier 1 Project: NS-63
Green Valley Creek Acquisition and Restoration
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
Vashon/Maury (KI - 13 - 26)
Banksidejurisdiction:
Vashon/Maury
Project sponsor:
King County
Budget:
$4,000,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: WDOE Shoreline Photo Viewer Images, 2020
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
NS-63
Vashon Island
UNINCORPORATED KING COUNTY
AGENDA ITEM #6. e)
PAGE
93 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
SW 207th Ln
SW 208th St
SW 216th St SW Mad
rona
Rd141st Ave SW135th Ave SWS
W
M
a
d
r
o
n
a
R
d SW Madrona RdPuget
Sound
Green Valley Cr.
PROJECT AREA MAP
N0200400 ft.
K ING C OUNT YSeattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
Public
Lands
Public
Lands
RestorationAcquisition
$
Nearshore
Pocket Estuary
Riparian
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Improved forage fish spawning habitat
• Reconnect historic feeder blus
• Shoreline armor reduction
Contribution to goals metrics:
• Marine riparian vegetation
• Shoreline armor
• Shoreline conservation
PROJECT DESCRIPTION:
Acquire undeveloped lots along the Green Valley
Creek, restore creek mouth, and remove hard
shoreline armor.
Tier 1 Project: NS-63
Green Valley Creek Acquisition and Restoration
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
Vashon/Maury (KI - 13 - 26)
Banksidejurisdiction:
Vashon/Maury
Project sponsor:
King County
Budget:
$4,000,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: WDOE Shoreline Photo Viewer Images, 2020
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
NS-63
Vashon Island
UNINCORPORATED KING COUNTY
AGENDA ITEM #6. e)
PAGE
94 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
NS-66
Palisades Park
Dumas BayPark
SR 509
SR 509
Puget Sound
FEDERAL WAY
PROJECT AREA MAP
N0200400 ft.
K ING C OUNT YSeattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
Public
Lands
Public
Lands Park
Acquisition
$
Nearshore
Feeder Blu
Primary strategy
Protect, restore and enhance marine shorelines.
Benefits:
• Improved forage fish spawning habitat
• Reconnect historic feeder blus
Contribution to goals metrics:
• Shoreline armor
PROJECT DESCRIPTION:
Protect 900 feet of active feeder blus that occurs
in the first third of the drift cell.
Tier 1 Project: NS-66
Camp Kilworth Protection
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Drift cell:
Federal Wa y (KI - 10 - 3)
Banksidejurisdiction:
Federal Way
Project sponsor:
Forterra and Kilworth
Environmental Education
Preserve (KEEP)
Budget:
$3,100,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: WDOE Shoreline Photo Viewer Images, 2020
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
Inc. Area
Boundary
AGENDA ITEM #6. e)
PAGE
95 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Riparian
SouthMarinaPark
Overlook Park I
Marine View Dr SS 223rd St
7th Ave SS 227th St
Puget
Sound
DESMOINES
509
516NS-13
IMAGE_Ortho2019KCNAT
Tier 2 Project: NS-13Massey Creek Pocket Estuary and Fish Passage Project
PROJECT DESCRIPTION:Acquire and restore the stream, create fish passage, remove the jetty and rock from the south bank, and create a pocket estuary.
PROJECT FACTS
Subwatershed:
Nearshore (NS)
Nearshore
jurisdiction:
Nearshore KI - 8 - 2
Bankside
jurisdiction:
City of Des Moines
Project sponsor:
City of Des Moines
Budget:
$3,000,000
Acquisition
$
Restoration
PROJECTTYPE:
Nearshore
Pocket Estuary
KEYHABITAT:KCIT-DCE VC folder: 2010_10202w_NS-13.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdPark Public Lands N0300600 ft150
Riparian
RaabsLagoonNaturalArea
Dockton Rd SW80th Ave SWSW 234th St
75th Ave SWKingsbury Rd SWQuartermaster
Harbor
UNINCORPORATEDKING COUNTYMAURY ISLAND
NS-14
Tier 2 Project: NS-14Raab's Lagoon Acquisition and Restoration
PROJECT DESCRIPTION:Acquire vacant lots, restore riparian forest habitat and connectivity by removing the weir and bulkhead.
PROJECT FACTS
Subwatershed:
Nearshore
Nearshore
jurisdiction:
Nearshore KI - 13 - 9
Bankside
jurisdiction:
King County
Project sponsor:
King County
Budget:
TBD
Acquisition
$
Restoration
PROJECTTYPE:
Nearshore
Pocket Estuary
KEYHABITAT:KCIT-DCE VC folder: 2010_10202w_NS-14.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdPark Public Lands N0300600 ft150
AGENDA ITEM #6. e)
PAGE
96 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Nearshore
Feeder Blu
Riparian
Judd C
r
e
ek
Marjorie R. StanleyNatural Area
SW 232nd St
SW Quartermaster DrVashon Hwy SWUNINCORPORATEDKING COUNTYVASHON ISLAND
Quartermaster
Harbor
NS-25
Tier 2 Project: NS-25Judd Creek Pocket Estuary
PROJECT DESCRIPTION:Restore habitat with wood placement, removal of derelict barge, and additional vegetation near mouth of Judd Creek.
PROJECT FACTS
Subwatershed:
Nearshore
Nearshore
jurisdiction:
Nearshore KI - 0 - 1
Bankside
jurisdiction:
King County
Project sponsor:
King County
Budget:
$6,000,000
Acquisition
$
Restoration
PROJECTTYPE:
Nearshore
Pocket Estuary
KEYHABITAT:KCIT-DCE VC folder: 2010_10202w_NS-25.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdPark Public Lands/Easements N0300600 ft150
Nearshore
Feeder Blu
Riparian
PinerPointNaturalAreaNorthillaBeachNaturalArea99th Ave SWSW Nort
h
i
l
l
a
R
d Point Piner Rd SWSW Summerhurst Rd
101st Ave SWSW 280th St
Puget
Sound
UNINCORPORATEDKING COUNTYVASHON ISLAND
IMAGE_Ortho2019KCNAT
NS-27
NS-27
Tier 2 Project: NS-27Piner Point Acquisition and Restoration
PROJECT DESCRIPTION:Acquire remaining properties, remove bulkheads, and restore feeder blus.
PROJECT FACTS
Subwatershed:
Nearshore
Nearshore
jurisdiction:
Nearshore KI - 13 - 8
Bankside
jurisdiction:
King County
Project sponsor:
King County
Budget:
$1,500,000
Acquisition
$
Restoration
PROJECTTYPE:KEYHABITAT:KCIT-DCE VC folder: 2010_10202w_NS-27.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdPark Public Lands/Easements N05001,000 ft
AGENDA ITEM #6. e)
PAGE
97 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Nearshore
Feeder Blu
NS-31
DiscoveryPark
CarletonHighlandsMagnoliaTidelandsPark
Magnolia Blvd WW Dravus
St
Magnolia Blvd WW Dravus
St
W Emerson StW Emerson St
Puget
Sound
SEATTLE
NS-31
IMAGE_Ortho2019KCNAT
Tier 2 Project: NS-31Discovery Park Feeder Bluff Protection and Restoration
PROJECT DESCRIPTION:Acquire remaining properties, remove bulkheads, and restore feeder blus.
PROJECT FACTS
Subwatershed:
Nearshore
Nearshore
jurisdiction:
Nearshore KI - 3 - 2
Bankside
jurisdiction:
City of Seattle
Project sponsor:
Seattle Parks
and Recreation
Budget:
TBD
Acquisition
$
Restoration
PROJECTTYPE:KEYHABITAT:KCIT-DCE VC folder: 2010_10202w_NS-31.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdPark Public Lands N0300600 ft150
Nearshore
Feeder Blu
Riparian
Tramp HarborDock
Dockton Rd SWDockton Rd SWDockton Rd SWDockton Rd SWSW Quartermaster DrSW Quartermaster Dr PortageWay SWPuget
Sound
Quartermaster
harbor
NS-44
UNINCORPORATEDKING COUNTYVASHON ISLAND
UNINCORPORATEDKING COUNTYMAURY ISLAND
IMAGE_Ortho2019KCNAT
Tier 2 Project: NS-44Portage Salt Marsh Restoration Project
PROJECT DESCRIPTION:Install bridge or box culverts, restore fish access, and restore habitat to salt marsh.
PROJECT FACTS
Subwatershed:
Nearshore
Nearshore
jurisdiction:
Nearshore KI - 13 - 6
Bankside
jurisdiction:
King County
Project sponsor:
King County
Budget:
$2,000,000
Acquisition
$
Restoration
PROJECTTYPE:KEYHABITAT:KCIT-DCE VC folder: 2010_10202w_NS-44.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdPark Public Lands N0300600 ft150
AGENDA ITEM #6. e)
Riparian
Ellis CreekNatural Area
Tramp Harbor Dock
8
7
t
h
A
v
e
SW
Dockton
Rd
SW
8
7
t
h
A
v
e
SW
Dockton
Rd
SW
SW Ellisport RdSW Ellisport Rd
Puget
SoundEl
l
i
sport CreekUNINCORPORATEDKING COUNTYVASHON ISLAND
NS-60
IMAGE_Ortho2019KCNAT
Tier 2 Project: NS-60Ellisport Creek Mouth Restoration
PROJECT DESCRIPTION:Acquire and restore habitat at Ellisport Creek stream mouth, and allow for fish passage.
PROJECT FACTS
Subwatershed:
Nearshore
Nearshore
jurisdiction:
Nearshore KI - 13 - 4;
KI - 13 - 5
Bankside
jurisdiction:
King County
Project sponsor:
King County
Budget:
$3,000,000
Acquisition
$
Restoration
PROJECTTYPE:KEYHABITAT:KCIT-DCE VC folder: 2010_10202w_NS-60.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdPark Public Lands N0300600 ft150
Nearshore
Pocket Estuary Planning/
Design
Riparian NS-67 Des Moines Creek TrailDes Moines Creek TrailDes MoinesBeach Park
Des MoinesCreek Park
South Marina Park
OverlookPark I
OverlookPark II
S 223rd St
S 222nd St
S 223rd St
S 222nd St
7th Ave SS 227th St
S 216th St
Des MoinesMemorial Dr SS 216th StS 216th St
DES MOINES
NORMANDYPARK
509
Puget
Sound
NS-67 Des Moines CreekIMAGE_Ortho2019KCNAT
Tier 2 Project: NS-67Des Moines Creek Estuary Restoration
PROJECT DESCRIPTION:Remove approximately 500 feet of hard shoreline armor and pull back fill material to create a more natural shoreline and stream transition.
PROJECT FACTS
Subwatershed:
Nearshore
Nearshore
jurisdiction:
Nearshore KI - 8 - 2
Bankside
jurisdiction:
City of Des Moines
Project sponsor:
City of Des Moines
Budget:
TBD
Restoration
PROJECTTYPE:KEYHABITAT:KCIT-DCE VC folder: 2010_10202w_NS-67.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdN0300600 ft150ParkPublic
Lands
Incorp. Area
Boundary
Nearshore
Pocket Estuary
Project
No.Project Name Project Type Project Description Sponsor
River mile and
Bank side/Nearshore
jurisdiction Primary Strategy (pick 1)Jurisdiction Goal alignment
NS-2 Myrtle Edwards Park Pocket
Beach Shallow Water Habitat
• Planning/Design
• Restoration
• Scoping/Reconnaissance
Remove shoreline armor and restore natural beach adjacent
to a previously created pocket beach.
Seattle Parks and
Recreation
Nearshore KI - 4 - 1 -
NAD
Protect, restore and
enhance marine shorelines
City of Seattle • Marine riparian vegetation
• Shoreline armor
NS-16 Dash Point State Park Estuary
Restoration and Water Quality
Improvements
• Restoration
• Scoping/Reconnaissance
Project will remove armoring to restore estuary and re-align
creek to more sinuous route. Improve water quality in park
through parking lot improvements, reduce erosion associated
with stormwater runoff, creosote-treated pedestrian bridge
replacement, and wetland enhancement.
Washington State Parks
& Recreation
Nearshore KI - MA - 014 Protect, restore and
enhance marine shorelines
City of Federal Way LG- Off-channel habitat
NS-22 Smith Cove Shallow Water
Rehabilitation
Planning/Design Remove some level of shoreline armor and plant native
vegetation along a stretch of barren riprap. The riprap leads
to a protected sandy pocket beach that exists at all tidal
elevations. There may be additional opportunity for nearshore
restoration on adjacent Port property. The Port also has a
marine habitat restoration pilot site adjacent to this project.
Seattle Parks and
Recreation
Nearshore KI - 3 -2/3 - 3
- NAD, KI - 3 - 3
Protect, restore and
enhance marine shorelines
City of Seattle • Marine riparian vegetation
• Shoreline armor
NS-35 Lower Shinglemill Creek
Habitat Restoration
Restoration Add LWD into stream reach west of Cedarhurst Road.King County Nearshore KI - 11 - 4 Protect, restore and
enhance marine shorelines
Vashon/Maury • Marine riparian vegetation
• Shoreline conservation
Table 3.
Marine Nearshore Subwatershed Tier 3 Projects
(continued on next page)
PAGE
98
PAGE
99 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update AGENDA ITEM #6. e)
NS-39 Walker Creek Headwaters Land
Acquisition
• Enhancement/Planting
• Restoration & Acquisition
• Scoping/Reconnaissance
The project plan is to seek partnership or acquisition
opportunities with the property owners within the project
area, with the goal of acquiring and restoring additional
contiguous areas beyond the current city-owned wetland
parcels within the project site.
City of Burien Nearshore KI - 7 - 3 Protect, restore and
enhance marine shorelines
City of Burien Shoreline conservation
NS-40 Salmon Creek Fish Barrier
Removal
• Planning/Design
• Restoration
The project plan is to seek a partnership or acquisition
opportunities with the property owners within the project
area, with the goals of removing the fish-barrier weir at the
mouth of the creek, and removing and replacing a culvert
with a modern fish passable one.
City of Burien Nearshore KI - 5 - 1 Protect, restore and
enhance marine shorelines
City of Burien • Marine riparian vegetation
• Shoreline armor
• Shoreline conservation
NS-42 Miller Creek Regional
Detention Facility
Planning/Design The project plan is to identify one or more large commercial
properties in Burien that have no existing stormwater
treatment or flow control, and partner with them to construct
regional stormwater facilities on their site(s).
City of Burien Nearshore KI - 7 - 3 Protect, restore and
enhance sediment and
water quality
City of Burien Shoreline conservation
NS-54 West Galer Street/32nd St.
Boat Ramp Shoreline Armor
Removal and Restoration
• Planning/Design
• Restoration
• Scoping/Reconnaissance
Remove/reduce shoreline armoring, remove fill, relocate
an SPU-owned pump station if feasible, and re-vegetate
shoreline. Potential acquisition of adjacent properties.
Seattle Public Utilities Nearshore KI - 3 - 2 Protect, restore and
enhance marine shorelines
City of Seattle Shoreline armor
NS-58 Tsugwalla Creek Pocket
Estuary Restoration Project
Restoration & Acquisition Restore fish passage and salt marsh habitat at mouth of
creek.
King County Nearshore KI - 13 - 15 /
KI - 13 - 14
Protect, restore and
enhance marine shorelines
Vashon/Maury • Marine riparian vegetation
• Shoreline armor
• Shoreline conservation
NS-59 Mileta Armor Removal and
shoreline restoration
Restoration Remove shoreline armoring, evaluate and improve fish
passage.
King County Nearshore KI - 13 - 10 Protect, restore and
enhance marine shorelines
Vashon/Maury • Marine riparian vegetation
• Shoreline armor
• Shoreline conservation
NS-68 Longfellow Creek Fish Passage
and Floodplain Restoration
• Acquisition
• Planning/Design
• Restoration
• Restoration & Acquisition
• Scoping/Reconnaissance
This project will evaluate restoration opportunities at five
sites along a 1.7-mile section of Longfellow Creek. Future
restoration may include: floodplain reconnection, fish
passage improvements (culvert replacements or daylighting),
stream channel realignment, stream channel and riparian
restoration, wetland creation and/or enhancement.
Seattle Public Utilities RM 0 / left bank Protect, restore, and
enhance riparian corridors
City of Seattle DUW - Riparian forest
NS-70 Fauntleroy Creek Fish Passage • Acquisition
• Planning/Design
• Restoration
• Restoration & Acquisition
Replace two aging fish passage barrier culverts with new
culverts that meet fish passage standards. Includes partial
daylighting and stream channel restoration.
Seattle Public Utilities Nearshore / KI - 5 - 1 Restore and improve fish
passage
City of Seattle • Marine riparian vegetation
• Shoreline armor
NS-72 Perkins Lane Protection and
Restoration Project/Perkins
Lane Utility Access Road
• Planning/Design
• Restoration
• Scoping/Reconnaissance
Assess feasibility of modifying the utility service road and
sewer access points in order to remove shoreline armor and
restore to a natural beach.
Seattle Public Utilities Nearshore KI - 3 - 2 Protect, restore and
enhance marine shorelines
City of Seattle • Marine riparian vegetation
• Shoreline armor
• Shoreline conservation
NS-73 Beall Creek Salmon Habitat
Project
Restoration Replace current surface water extraction system with a fish
friendly system to allow for the return of salmon and other
salmonids
Water District 19 2923039086/Water
District 19
Protect, restore and
enhance marine shorelines
Water District 19 • Marine riparian vegetation
• Shoreline armor
• Shoreline conservation
Project
No.Project Name Project Type Project Description Sponsor
River mile and
Bank side/Nearshore
jurisdiction Primary Strategy (pick 1)Jurisdiction Goal alignment
Table 3.
Marine Nearshore Subwatershed Tier 3 Projects, continued
PAGE
100
PAGE
101 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update AGENDA ITEM #6. e)
Tier 2 (Score 7-18) 9 projects
DUW-18 ....Codiga Off-channel Habitat Expansion
DUW-22 ...Cecil Moses
DUW-24 ...Carrossino Restoration
DUW-26 ...S 104th St. Bank Stabilization/Restoration
DUW-3 ......Seattle LA Freight Revetment Setback
DUW-60 ...Herring’s House Park Fish Access Improvement
DUW-61 ....George Long
DUW-63 ...S. 115th St. Road Setback
Tier 3 (Score <7) 2 projects
DUW-14 ....Duwamish Waterway Park
DUW-19 ....Southgate Creek Restoration
Duwamish Estuary Subwatershed 19 projects
Tier 1 (Score 18+) 8 projects
DUW-2 ......Rendering Plant
DUW-7 ......Chinook Wind
DUW-7a ....Chinook Wind - Extension
DUW-25 ...Desimone Oxbow Restoration
DUW-29 ...Seattle City Light North/Hamm Creek
DUW-32 ...Duwamish River People’s Park & Shoreline Habitat (Terminal 117)
DUW-64 ...U-Haul River Project
DUW-66 ...Terminal 25 South
PAGE
102 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
DUW-67.......Codiga to TCC Corridor
AGENDA ITEM #6. e)
DUW-3
DUW-2
DUW-7
DUW-7a
DUW-18
DUW-64 DUW-63
DUW-66
DUW-61
DUW-60
DUW-29
DUW-26
DUW-25
DUW-24DUW-22
DUW-19
DUW-18
DUW-14
DUW-32
2
1
8
9
3
4
5
6
7
12
10
11
Lake
Washington
Duwamish
R
iver
Miller CreekGreen
R
iver
Black River
405
900
599
518
509
99
99
99
5
Spokane St. Viaduct
Lake
Washington
Puget
Sound
Elliott Bay
Lake Burien
SEATTLE
SEATTLE
SEATTLE
BURIEN
UNINCORPORATED
KING COUNTY
TUKWILA
SEATAC
RENTON
MERCER
ISLAND
Note:The use of the information in this map is subject to the terms and conditions found at: www.kingcounty.gov/services/gis/Maps/terms-of-use.aspx. Your access and use is conditioned on your acceptance of these terms and conditions.
KCIT-DCE File: 2011_20202L_W9SHP_ProjMap_DUW.ai LPRE
GIS File:Q:\20009\WRIA9_Watershed.mxd KLINKAT
River mile
Project location and name
River/creek
Major road
Urban Growth Area Line
Duwamish Estuary
Subwatershed boundary
WRIA 9 boundary
Open water
Public lands
Incorporated Area
Figure __
Duwamish Estuary
Subwatershed Projects
1
N
0 1/2 Mile
October 2020
1/4
West Seattle Bridge
DUW-1
PAGE
103 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Figure 27.
Duwamish Estuary
Subwatershed Projects
AGENDA ITEM #6. e)
DUW-2
RM
10
Gr
e
e
n
R
i
v
e
r
T
r
a
i
l
-
T
u
k
w
i
l
a
Gre en R. T r a i l - Lower
Foster Golf Links
Foster Golf Links
57th Ave. SMini Park
Int
e
r
u
r
b
a
n
A
v
e
S 68th
Ave
S
900
5
D uw a m i s h River
TUKWILA
UNINCORPORATED
KING COUNTY
RENTON
DUW-2
K ING C OUNT Y
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
Public
Lands
Incorp. Area
BoundaryPark N0 200 400 600 ft
Backwater
Side Channel
Floodplain Riparian
Edge
Acquisition
$
Planning/
Design
Restoration
Scoping/
Reconnaissance
Duwamish
MarshDuwamish
Mudflat
Primary strategy
Protect, restore, and enhance channel complexity and
edge habitat.
Benefits:
• Increased rearing habitat
• Sediment quality improvement
Contribution to goals metrics:
• DUW - Riparian forest
• DUW - Shallow water habitat
PROJECT DESCRIPTION:
Acquire and restore
seven + acres with side
channel and backwater
habitat enhancements and
reforestation.
Tier 1 Project: DUW-2
Rendering Plant
PROJECT FACTS
Subwatershed:
Duwamish (DUW)
River mile:
Duwamish RM 10.1 - 9.7/
right bank
Bankside jurisdiction:
City of Tukwila
Project sponsor:
City of Tukwila
Budget: $9,730,000
PROJECT TYPE:
KEY HABITAT:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: Google Earth, 2020
KCIT-DCE file: 2010_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
PAGE
104 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
RM
6Green
R
iver
Tra
i
l
-
Lowe
r
G r e e n R i v e r T r ail - Tukw i l a
Site 1 Duwamish
Cecil MosesMemorial Park
Tukwila Intl BlvdAirport Way S99
99
599
D u w a m i s h R iver
TUKWILA
BURIEN East Marginal Way SDUW-7DUW-64
K ING C OUNT Y
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
Public
landsPark N0200400600 ftIncorp. Area
Boundary
Riparian
Acquisition
$
Restoration
Duwamish
MarshDuwamish
Mudflat
Primary strategy
Protect, restore, and enhance channel complexity and
edge habitat.
Benefits:
• Increased habitat connectivity
• Sediment quality improvement
Contribution to goals metrics:
• DUW - Riparian forest
• DUW - Shallow water habitat
PROJECT DESCRIPTION:
Expand and enhance low velocity, shallow water
rearing rearing habitat (shallow subtidal and
intertidal) in the Duwamish transition zone.
Tier 1 Project: DUW-7
Chinook Wind
PROJECT FACTS
Subwatershed:
Duwamish (DUW)
River mile:
Duwamish RM 6.7/
right bank
Bankside jurisdiction:
City of Tukwila
Project sponsor:
King County
Budget: $14,900,000
PROJECT TYPE:
KEY HABITAT:
Project Area Map: Ortho2019KCNAT aerial photo
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
PAGE
105 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
RM
6Green
R
iver
Tra
i
l
-
Lowe
r
G r e e n R i v e r T r ail - Tuk w i l a
Site 1 DuwamishCecil MosesMemorial Park
Tukwila Intl BlvdAirport Way S
99
99
599
D u w a m i s h River
TUKWILA
BURIEN East Marginal Way SDUW-64
K ING C OUNT Y
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
Public
LandsPark N0200400600 ftInc. Area
Boundary
Riparian
Acquisition
$
Restoration
Duwamish
MarshDuwamish
Mudflat
Primary strategy
Protect, restore, and enhance channel complexity and
edge habitat.
Benefits:
• Increased habitat connectivity
• Recreation opportunities
• Sediment quality improvement
Contribution to goals metrics:
• DUW - Riparian forest
• DUW - Shallow water habitat
PROJECT DESCRIPTION:
Expand and enhance the land between Chinook
Wind Mitigation and Duwamish Gardens to create a
unified park and rest.
Tier 1 Project: DUW-7a
Chinook Wind Extension
PROJECT FACTS
Subwatershed:
Duwamish (DUW)
River mile:
Duwamish RM 6.8/
right bank
Bankside jurisdiction:
City of Tukwila
Project sponsor:
City of Tukwila
Budget: $1,418,000
Project Area Map: Ortho2019KCNAT aerial photo
KCIT-DCE file: 2010_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
PROJECT TYPE:
KEY HABITAT:
Edge
Planning/
Design
PAGE
106 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
DUW-25
6
RM
6
Duwamish River
Green R
iver Tra
il
-
Lower
Site 1
Duwamish
Cecil Moses
Memorial Park
Turning Basin
Number 3
East
Ma
rg
ina
l
Way
SEast
Ma
rg
ina
l
Way
S
E
a
s
t
M
a
rg
ina
l
Wa
y
S
E
a
s
t
M
a
rg
ina
l
Wa
y
STukwila Intl BlvdTukwila Intl BlvdS Boeing
Access RdS Boeing
Access Rd Airpo
r
t
Wa
y
S
Interurban
Interurban
Av
e
.
S
.
Av
e
.
S
.
99
TUKWILA
SEATTLE
BURIEN
K ING C OUNT Y
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
Public
LandsPark N0200400600 ftIncorp. Area
Boundary
Primary strategy
Protect, restore, and enhance channel complexity and
edge habitat.
Benefits:
• Increased rearing habitat
• Sediment quality improvement
Contribution to goals metrics:
• DUW - Riparian forest
• DUW - Shallow water habitat
• LG - O-channel habitat
PROJECT DESCRIPTION:
Acquire and restore 45.4-acre site located on the
western shore of the Duwamish River between river
miles 5 and 6 resulting in 23.6 acres of marsh
created, 10.8 acres of vegetation, and 34.4 acres
refuge habitat created.
Tier 1 Project: DUW-25
Desimone Oxbow Restoration
PROJECT FACTS
Subwatershed:
Duwamish (DUW)
River mile:
Duwamish RM 6.5 -
5.3/left bank
Banksidejurisdiction:
City of Tukwila
Project sponsor:
Unknown
Budget: $84,193,945
PROJECT TYPE:
KEY HABITAT:
Project Area Map: Ortho2019KCNAT aerial photo
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
Backwater
Side ChannelRiparianEdge
Enhancement/
Planting
Acquisition
$
Planning/
Design
Restoration
Duwamish
Marsh
Duwamish
Mudflat
PAGE
107 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
RM
5
DUW-29Duwamish River
G
r
e
e
n
R
i
v
e
r
T
r
a
i
l
-
L
o
w
e
r
Port of Seattle Tr
ails
Hamm CreekNatural Area
Turning BasinNumber 3
D
e
s
M
o
i
n
e
s
M
em
o
r
i
a
l
D
r
S
99
TUKWILA
UNINCORPORATED
KING COUNTY
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
Public
Lands
Incorp. Area
BoundaryPark N0200400600 ft
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan • November 2020
Primary strategy
Protect, restore, and enhance channel complexity and
edge habitat.
Benefits:
• Increased rearing habitat
• Sediment quality improvement
Contribution to goals metrics:
• DUW - Shallow water habitat
PROJECT DESCRIPTION:
Create o channel habitat and shallow water
esturarine habitat in the area north of the existing
Duwamish 230 kV - 26 kV substation.
Tier 1 Project: DUW-29
Seattle City Light North/Hamm Creek
PROJECT FACTS
Subwatershed:
Duwamish (DUW)
River mile:
Duwamish RM 5.0 -
4.8/ left bank
Banksidejurisdiction:
City of Seattle
Project sponsor:
Seattle City Light
Budget:
TBD
PROJECT TYPE:
KEY HABITAT:
Site Photo: Wash. Dept. of Ecology Project Area Map: Ortho2019KCNAT aerial photo
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
Backwater
Nearshore
Pocket Estuary
Restoration
Tributary
PAGE
108 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
RM
4
DUW-32
Duwamish
Ri
verGreen River Trail - LowerDuwamish
Trail
King County
International Airport
Boeing Field
14th Ave S16th Ave SEast
M
ar
g
inal
W
ay
S
S Cloverdale St
S
R 99
99
TUKWIL A
SEATTLE
SEATTLE
UNINCORPORATED
KING COUNT Y
K ING C O U N T Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
Public
Lands
N0200400600 ftIncorp. Area
Boundary
Edge
Enhancement/
Planting
Planning/
Design
Restoration
Duwamish
Marsh
Duwamish
Mudflat
Green/Duwamish and Central Puget Sound Watershed Salmon Habitat Plan • November 2020
Primary strategy
Protect , restore, and enhance channel complexit y and
edge habitat .
Benefits:
• Increased habitat connectivit y
• Recreation oppor tunities
• Sediment quality improvement
Contribution to goals metrics:
• DUW - Shallow water habitat
PROJECT DESCRIPTION:
Tier 1 Project: DUW-32Duwamish River People’s Park &Shoreline Habitat (Terminal 117)
PROJECT FACTS
Subwatershed:
Duwamish (DUW)
River mile:
Duwamish 4.5 - 4.1 /
left bank
Jurisdiction:
Por t of Seattle
Project sponsor:
Por t of Seattle
Budget:
TBD
PROJECT TYPE:
KEY HABITAT:
Site Photo: Wash. Dept. of Ecology Project Area Map: Ortho2019KCNAT aerial photo
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
Restore approximately 13.5 acres and 2,050 linear
feet of upland and aquatic habitats. The project will
expand o-channel habitat as well as establish
marsh vegetation and riparian forest, restore
estuarine shoreline via removal of armoring, and
add large wood.
PAGE
109 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
PAGE
110 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
DUW-64
RM
6Green River Trail
- Lower
G r e e n R i v e r T r ail - Tuk w i l a
Site 1 Duwamish
Cecil MosesMemorial Park
Tukwila Intl BlvdAirport Way S
99
99
599
D u w a m i s h River
TUKWILA
BURIEN East Marginal Way SK ING C OUNT Y
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
Incorp. Area
BoundaryPublic
LandsPark N0200400600 ft
Riparian
Acquisition
$
Restoration
Duwamish
MarshDuwamish
Mudflat
Primary strategy
Protect, restore, and enhance channel complexity and
edge habitat.
Benefits:
• Increased rearing habitat
• Recreation opportunities
• Sediment quality improvement
Contribution to goals metrics:
• DUW - Riparian forest
• DUW - Shallow water habitat
PROJECT DESCRIPTION:
Acquire and restore 4.4-acre parcel by creating
o-channel mudflat, marsh, and riparian habitat.
Tier 1 Project: DUW-64
U-Haul River Project
PROJECT FACTS
Subwatershed:
Duwamish (DUW)
River mile:
Duwamish RM 6.5 - 6.3/
right bank
Bankside jurisdiction:
City of Tukwila
Project sponsor:
City of Tukwila
Budget: $11,770,000
PROJECT TYPE:
KEY HABITAT:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: Google Earth, 2020
KCIT-DCE file: 2010_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
Backwater
Edge
Planning/
Design
Scoping/
Reconnaissance
AGENDA ITEM #6. e)
PAGE
111 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
DUW-66
Duwamish River Duwamish RiverDuwamish
River Elliott Bay TrailWest Seattle Bridge Trail
Harbor MarinaCorporate Centerat Terminal 102
SW Spokane St E Marginal Way SS Spokane St
West Seattle Brg
E Marginal Way SWest Seattle Bridge
Seattle
Harbor
Island
UNINCORPORATED
KING COUNTY
UNINCORPORATED
KING COUNTY
99
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
Public
Lands
N0200400600 ftPark
Backwater
Edge
Enhancement/
Planting
Planning/
Design
Restoration
Duwamish
Marsh
Duwamish
Mudflat
Primary strategy
Protect, restore, and enhance channel complexity and
edge habitat.
Benefits:
• Increased rearing habitat
• Sediment quality improvement
Contribution to goals metrics:
• DUW - Shallow water habitat
PROJECT DESCRIPTION:
Restore critically needed estuarine in the East
Waterway. Project will expand o-channel habitat as
well as establish marsh vegetation and riparian
forest, restore estuarine shoreline via removal of
armoring & creosote pile, and add large wood.
Tier 1 Project: DUW-66
Terminal 25 South
PROJECT FACTS
Subwatershed:
Duwamish (DUW)
River mile:
Duwamish 0.4 /
right bank
Jurisdiction:
Port of Seattle
Project sponsor:
Port of Seattle
Budget:
TBD
PROJECT TYPE:
KEY HABITAT:
Project Area Map: Ortho2019KCNAT aerial photo
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
AGENDA ITEM #6. e)
Tier 2 Project: DUW-3
Seattle LA Freight Revetment Setback
PROJECT DESCRIPTION:
Acquire properties, setback the revetment, create
shallow water edge habitat with backwater refuge
for salmonids, and improve shoreline conditions in
this freight district in Tukwila.
PROJECT FACTS
Subwatershed:
Duwamish (DUW)
River mile:
RM 9.7- 10.1 /
right bank
Bankside
jurisdiction:
City of Tukwila
Project sponsor:
City of Tukwila
Budget:
$5,230,000
PROJECT TYPE: KEY HABITAT:
FloodplainEdge
Enhancement/Planting
Planning/
Design
Acquisition
$
Restoration
Scoping/Reconnaissance
Duwamish
Marsh
Duwamish
Mudflat
Riparian
5
6
t
h
P
l
S
5
1
s
t
P
l
S
S
1
3
0
t
h
P
l
S 125th St
56th Ave S49th Ave SGa
t
e
w
a
y
D
r 50th Ave SB
e
a
c
o
n
C
o
a
l
M
i
n
e
R
d
S
S 124th St
57th Ave SS Pamela D
r Private RdS 122nd Ln
S 122nd
St
48th Ave SS
L
a
n
g
s
t
o
n
R
d
S 1
3
3
r
d
S
t48th Ave S56th Ave S57th Ave SGateway Dr57th Ave S51
s
t
P
l
S
5
1
s
t
P
l
S
S
1
3
0
t
h
P
l
S 124th St
57th Ave S5
1
s
t
P
l
SS
130
th
P
l
DUW-3
Duw am is h River
Gre
e
n River Trail -
T
ukwila
Foster Golf Links
Codiga
Park
Green River Trail Site
S 129th St
5
0
t
h
P
l
S
S 124th St
Int
e
r
u
r
b
a
n
A
v
e
S
TUKWILA
UNINCORPORATED
KING COUNTY
N0 300 600 ft150ParkPublic
Lands
Incorp. Area
Boundary
DUW-3
RM
9
5
599
900
KCIT-DCE VC folder: 2010_10202w_DUW-3.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxd9RM
9Gree
n RiverTrai l - T ukw ila
Int
e
r
u
r
b
a
n
A
v
e
SS 133rd StS 129th St
5
0
t
h
P
l
S
S 124th St
Duwamish
R
i
verTUKWILA
UNINCORPORATED
KING COUNTY
Codiga
Park
Foster Golf Links
TukwilaComm.Center
DUW-18
5
900
599
IMAGE_Ortho2019KCNAT
N0 300 600 ft150ParkPublic
Lands
Incorp. Area
Boundary
Tier 2 Project: DUW-18
Codiga Off-channel Habitat Expansion
PROJECT DESCRIPTION:
Expand Codiga Park habitat restoration project by
turning the backwater area into a side channel to
increase rearing and refuge for salmon during
higher flows.
PROJECT FACTS
Subwatershed:
Duwamish (DUW)
River mile:
RM 8.6/right bank
Banksidejurisdiction:
City of Tukwila
Project sponsor:
City of Tukwila
Budget: $642,000
PROJECTTYPE:KEYHABITAT:KCIT-DCE VC folder: 2010_10202w_ DUW-18.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdRiparian
Side
Channel
Floodplain
Duwamish
Marsh
Planning/
Design
Restoration
Duwamish
Mudflat
PAGE
112 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
Tier 2 Project: DUW-22
Cecil Moses
PROJECT DESCRIPTION:
Enhance access to and expand existing o-channel
habitat to increase quality and quantity of available
rearing habitat in the transition zone by expanding
existing inlet/outlet, removal of tire revetment, and
potential acquisition and restoration of adjacent
downstream creek parcel.
PROJECT FACTS
Subwatershed:
Duwamish (DUW)
River mile:
RM 6.3 / left bank
Bankside jurisdiction:
King County
Project sponsor:
Seattle Parks and Recreation
Budget: $5,000,000
PROJECTTYPE:KEYHABITAT:
Duwamish
Marsh
Acquisition
$
Restoration Duwamish
Mudflat Green River Trai
l -
Lower
Green River Trail
-
Tukwila
Cecil Moses
Memorial
Park S 112th StTukwila Intl BlvdDuwami
s
h River
TUKWILA
BURIEN
UNINCORPORATED
KING COUNTY
DUW-22
99
N0300600 ft150
RM
6
KCIT-DCE VC folder: 2010_10202w_DUW-22.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdPark Public
Lands
Incorp. Area
Boundary
PAGE
113 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update KCIT-DCE VC folder: 2010_10202w_DUW-24.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdUNINCORPORATED KING COUNTY
Tier 2 Project: DUW-24
Carrossino Restoration
PROJECT DESCRIPTION:
Acquire properties and create shallow mudflat,
marsh, and backwater habitats.
PROJECT FACTS
Subwatershed:
Duwamish (DUW)
River mile:
6 - 6.1 / right bank
Bankside
jurisdiction:
City of Tukwila
Project sponsor:
City of Tukwila
Budget: $16,304,000
PROJECTTYPE:KEYHABITAT:
Backwater
Riparian
Edge
Enhancement/
Planting
Acquisition
$
Planning/
Design
Restoration
Duwamish
Marsh
Duwamish
Mudflat Green R
iver Trail -
Lower
Green River Trail
-
Tukwila
Cecil Moses
Memorial
Park S 112th St
Tukwila Intl BlvdDuwami
s
h River
TUKWILA
BURIEN
UNINCORPORATED
KING COUNTY
DUW-24
99
N0300600 ft150
RM
6
Park Public
Lands
Incorp. Area
Boundary
AGENDA ITEM #6. e)
PAGE
114 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
DUW-26
99 RM
6
East
Ma
rg
ina
l
Way
SEas
t
Ma
rg
ina
l
Wa
y
SAi
rpo
r
t
Way
STukwila Intl BlvdTUKWILA
SEATTLE
S 102nd St
S 102nd StS 104t
h
S
t
D
u
wamish RiverTier 2 Project: DUW-26
S. 104th St. Bank Stabilization/Restoration
PROJECT DESCRIPTION:
Acquire properties, abandon and remove the road,
and create shallow water edge and backwater
habitat in the transition zone.
PROJECT FACTS
Subwatershed:
Duwamish (DUW)
River mile:
5.6 / right bank
Bankside
jurisdiction:
City of Tukwila
Project sponsor:
City of Tukwila
Budget: $5,930,000
PROJECTTYPE:KEYHABITAT:Green River Tra
il
-
Lower
Backwater
Riparian
Edge
Acquisition
$
Planning/
Design
Restoration
Scoping/Reconnaissance
Duwamish
Marsh
Duwamish
Mudflat
N0 300 600 ft150ParkPublic
Lands
Incorp. Area
Boundary
KCIT-DCE VC folder: 2010_10202w_DUW-26.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdTier 2 Project: DUW-60
Herring's House Park Fish Access Improvement
PROJECT DESCRIPTION:
Adaptively manage an older restoration project to
increase fish use by expanding channel opening
width, removing shoreline armor and considering
a bridge over the channel for recreational access.
PROJECT FACTS
Subwatershed:
Duwamish (DUW)
River mile:
RM 1.1 / left bank
Bankside
jurisdiction:
City of Seattle
Project sponsor:
Seattle Parks and
Recreation
Budget: $1,250,000
KEYHABITAT:
Side Channel
Nearshore
Pocket Estuary
Riparian
PROJECTTYPE:
Planning/
Design
Restoration Duwamish TrailDuwamish Tra
i
l
Puget
Park
West
Duwamish
Greenbelt
Pigeon
Point
Park Herrings
House
Park
(Tualtwx)
Terminal
108
Park
Terminal
107
Park
Kellogg
IslandWest
Duwamish GS:
Puget Park
SW Da
ws
o
n
St West Marg
ina
l
Way
SW
DUW-60
RM
1
Duwamish
R
iver
SEATTLE
N0 300 600 ft150ParkPublic Lands
KCIT-DCE VC folder: 2010_10202w_DUW-60.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdAGENDA ITEM #6. e)
PAGE
115 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Tier 2 Project: DUW-61
George Long
PROJECT DESCRIPTION:
Create backwater refuge and riparian habitat
at the uppermost limit of the transition zone.
PROJECT FACTS
Subwatershed:
Duwamish (DUW)
River mile:
10.4 / left bank
Bankside
jurisdiction:
City of Tukwila
Project sponsor:
City of Tukwila
Budget: $9,500,000
PROJECTTYPE:KEYHABITAT:
Backwater
Edge
Enhancement/
Planting
Acquisition
$
Restoration
Scoping/
Reconnaissance
Duwamish
Marsh
Duwamish
Mudflat
Riparian
IMAGE_Ortho2019KCNAT
DUW-61
Green RiverDuwam ish R iverGreen River Tr
a
i
l
-
L
o
w
e
r
G
r
e
e
n
R
i
v
e
r
T
r
a
i
l
-
T
u
k
w
i
l
a
Foster Golf Links
Macadam Winter Garden
Fort Dent Park
S 144th St 58th Ave SIn
te
ru
r
ban
A
v
e
S
SR 9
0
0
Green River
TUKWILA
UNINCORPORATEDKING COUNTY
RM
10
DUW-61
N0300600 ft150ParkPublic
Lands
Incorp. Area
Boundary
In
t
e
r
u
r
b
a
n
A
v
e
S
KCIT-DCE VC folder: 2010_10202w_DUW-61.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdTier 2 Project: DUW-63
S. 115th St. Road Setback
PROJECT DESCRIPTION:
Relocate local road and create shallow water edge,
backwater mudflat, marsh, and riparian habitat as
part of the Duwamish Hill Preserve Master Plan.
PROJECT FACTS
Subwatershed:
Duwamish (DUW)
River mile:
RM 7 / right bank
Bankside
jurisdiction:
City of Tukwila
Project sponsor:
City of Tukwila
Budget:
$4,699,000
PROJECTTYPE:KEYHABITAT:
Side ChannelEdge
Restoration
Scoping/
Reconnaissance
Duwamish
Marsh
Duwamish
Mudflat
DuwamishHill Preserve
S 115th St
42nd Ave SS 112th St
S 115th St
42nd Ave SS 112th St East
Marg
ina
l
Way
S
Inte
r
u
r
b
a
n
A
v
e
SEast
Marg
ina
l
Way
S
Inte
r
u
r
b
a
n
A
v
e
STukwila Intl BlvdAirport Way STUKWILA
RM
7
599
5
Green River Trail - Tukwila
DUW-63
D u w a m i s h R iver
N0300600 ft150
KCIT-DCE VC folder: 2010_10202w_DUW-63.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdPark Public
Lands
AGENDA ITEM #6. e)
Table 4 Duwamish Estuary Subwatershed Tier 3 Projects
PAGE
116
PAGE
117 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Proj#Project Name Project Type Project Description Sponsor
River mile and Bank
side/Nearshore
jurisdiction Primary Strategy (pick 1)Jurisdiction Goal Alignment
DUW-14 Duwamish Waterway
Park
• Acquisition
• Planning/Design
• Restoration
• Scoping/Reconnaissance
Acquire adjacent properties, pull back bank armoring, revegetate. incorporate
recreational uses.
Seattle Parks and
Recreation
RM 3.6/left bank Protect, restore and enhance
marine shorelines;
City of Seattle Marine riparian vegetation
Shoreline armor
Shoreline conservation
DUW-19 Southgate Creek
Restoration
• Other
• Planning/Design
• Restoration
• Acquisition
• Scoping/Reconnaissance
This project would improve fish passage, water quality and flooplain/flood-
control in Southgate Creek, which is piped and channelized through most of
its lower reach; the confuence of the Green would be improved for off-channel,
tributary Chinook use. Studies are required.
City of Tukwila RM 7.90/left bank Protect, restore and enhance
instream flows and cold water
refugia
City of Tukwila DUW - Riparian forest
DUW - Shallow water habitat
9RM
9Gree
n RiverTrai l - T ukw ila
Int
e
r
u
r
b
a
n
A
v
e
SS 133rd StS 129th St
5
0
t
h
P
l
S
S 124th St
Duwamish
R
i
verTUKWILA
UNINCORPORATED
KING COUNTY
Codiga
Park
Foster Golf Links
TukwilaComm.Center
DUW-67
5
900
599
IMAGE_Ortho2019KCNAT
N0 300 600 ft150ParkPublic
Lands
Incorp. Area
Boundary
Tier 2 Project: DUW-67
Codiga to TCC Corridor
PROJECT DESCRIPTION:
Acquire properties to create a public greenbelt and
shallow water and riparian habitat extending from
Codiga Park to the Tukwila Community Center.
PROJECT FACTS
Subwatershed:
Duwamish (DUW)
River mile:
RM 8.1-8.3/
right bank
Bankside
jurisdiction:
City of Tukwila
Project sponsor:
City of Tukwila
Budget:
$12,525,000
PROJECT TYPE:KEY HABITAT:KCIT-DCE VC folder: 2010_10202w_ DUW-18.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdBackwater
Duwamish
Marsh
Riparian
EdgeAcquisition
$
Planning/
Design
Restoration
Scoping/
Recon.
Duwamish
Mudflat
Education
& Outreach Enhancement/
Planting
AGENDA ITEM #6. e)
PAGE
118 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Tier 2 (Score 7-18) 19 projects
LG-1 .........Reddington Habitat Creation
LG-5 ........Northeast Auburn Creek Restoration
LG-7 .........Mullen Slough
LG-10 ......Boeing Levee Setback Habitat Rehabilitation
LG-12 .......Briscoe Park Off-channel Habitat
LG-17 .......Fort Dent Revetment Setback
LG-18 .......Black River Marsh
LG-19 .......Lower Springbrook Reach Rehabilitation
LG-23 ......8th Street Bridge to 104th Ave Park Off-Channel
Habitat
LG-26......Valentine Revetment Setback
Tier 3 (Score <7) 13 projects
LG-2 ........Olson Creek Restoration
LG-15.......Nelsen Side Channel
LG-16 ......Gilliam Creek Fish Passage and Riparian
Rehabilitation
LG-20 .....Riverview Plaza Off-channel Habitat Creation
LG-21 .......Best Western Revetment Setback
LG-38 .....Fenster Slough Wetland Connection
LG-43 .....Panther Creek at East Valley Road Improvement
Project
LG-27 ......8th Street Acquisitions
LG-30 .....Mill Creek to Washington Ave Bridge Acquisitions
and Restoration
LG-31.......South of Veteran’s Drive Floodplain Reconnection
LG-32 ......Foster Park Floodplain Reconnection
LG-37 ......Strander Boulevard Off-channel Habitat Creation
LG-46 .....Mill Creek Protection and restoration near
Emerald Downs
LG-49 .....Horseshoe Bend Levee Riparian Habitat
Improvements
LG-51 ......Milwaukee 2 Improvements
LG-55 .....Frager Road Levee Setback
LG-52......Panther Creek at Talbot Road South Fish Passage
Improvement
LG-53 .....Signature Pointe Levee Improvements
LG-54 .....SR 516 to S 231st Way Levee
LG-56 .....Kent Airport Levee Setback
LG-57 ......Barnaby Truong Off-Channel Habitat Creation
LG-58 .....Briscoe Levee Riparian Habitat Improvements
Lower Green River Subwatershed 45
projects
Tier 1 (Score 18+) 13 projects
LG-3 ........Horsehead Restoration Project
LG-6 ........Wrecking Yards Restoration Project
LG-8 ........Lower Mill Creek Channel Restoration
LG-22 ......Wetland Floodplain Off-Channel Habitat
Reconnection
LG-28......North Green River Park
LG-29......North of Veteran’s Drive Floodplain
Reconnection
LG-33 .....Midway Creek Wetland Complex
LG-34 .....Johnson Creek Floodplain Project
LG-35 .....P-17 Stormwater Pond Connection
LG-39 .....Port of Seattle Mitigation Site Floodplain
Connection
LG-40 .....Downey Side Channel Restoration
LG-42 .....Lower Russell Road: Habitat Area A
LG-45 .....Teufel Off Channel Habitat Restoration
AGENDA ITEM #6. e)
FEDERALWAY
LG-8
LG-7
LG-6
LG-5
LG-3
LG-1
LG-2
LG-57
LG-55
LG-54
LG-53
LG-56
LG-51
LG-49
LG-46
LG-45
LG-43
LG-52
LG-38
LG-27
LG-26
LG-23
LG-39
LG-22
LG-28
LG-30
LG-32
LG-33
LG-31
LG-29
LG-34
LG-35
LG-37LG-20 LG-21
LG-19LG-17
LG-16LG-15
LG-42
LG-10
LG-40
LG-58
LG-12
M
i
l
l
C
r
.Springbook Cr.S. Mil
l
C
r
.
Black River
Green Ri
ve
r
405
167
18
5
AngleLake
Star Lake
Panther
Lake
Lake
Geneva
KENT
KENT
KENT
AUBURN
RENTON
TUKWILA
ALGONA
River mile
Project location
River/creek
Major road
Urban Growth Area
line
Lower Green River
Subwatershed
boundary
WRIA 9 boundary
Open water
Public lands
Incorporated area
Figure __
Lower Green River
Subwatershed Projects
0 1/2 1 2 Miles
N
Note:The use of the information in this map is subject to the terms and conditions found at: www.kingcounty.gov/services/gis/Maps/terms-of-use.aspx. Your access and use is conditioned on your acceptance of these terms and conditions.
KCIT-DCE File: 2011_20202L_W9SHP_ProjMap_LGR.ai LPRE
GIS File:Q:\20009\WRIA9_Watershed.mxd KLINKAT
1
PAGE
119 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Figure 28.
Lower Green River
Subwatershed Projects
AGENDA ITEM #6. e)
RM
26
RM
27Green River Trail - KentGr
e
e
n
R
i
v
e
r
Mill Creek
North Green
River Park
Horsehead Bend
Natural Area
Horsehead Bend
Natural Area
UNINCORPORATED
KING COUNTY
CITY OF KENT
S 259th St
S262nd
St
S 266th St
9
4
t
h
P
l
S
Green River Rd
LG-3
K ING C OUNT Y
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
Urban Growth
Area Line
0 300 ft150Reiten RdPublic
Lands
Incorp. Area
BoundaryPark N
Backwater Floodplain
RiparianEdge
Restoration
Primary strategy
Protect, restore, and enhance floodplain connectivity.
Benefits:
• Increased habitat connectivity
• Increased rearing habitat
• Water temperature reduction
Contribution to goals metrics:
• LG - Large woody debris
• LG - O-channel habitat
• LG - Riparian forest
PROJECT DESCRIPTION:
Create approximately 13 acres of backwater habitat
and revegetate 3,000 feet of river bank.
Tier 1 Project: LG-3
Horsehead Restoration Project
Project Area Map: Ortho2019KCNAT aerial photo
VC file: 2010_10202L_W9SHRPfact_HORSEHEAD.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxd
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
25.7 - 26.5 / left bank
Bankside jurisdiction:
King County
Project sponsor:
King County
Budget: $11,100,000
PROJECT TYPE:
KEY HABITAT:
PAGE
120 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
LG-6
RM
24
Green River
RMRM Interurban Trail - KentGreen River Trail - KentGreen River Trail - KentGreen River Trail - Kent
Foster
Park
Green River
Trail Site
Interurban
Trail Site - KentSR 167S 259th StS 259th St
72nd Ave S72nd Ave S1st Ave S1st Ave S79th Ave S79th Ave S3rd Ave S3rd Ave S74th Ave S74th Ave SS 266th StS 266th St
S 262nd St 80th Ave S80th Ave SS 261st StS 261st St
KENT
KENT
KENT
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
UNINCORPORATED
KING COUNTY
PROJECT AREA MAP
Public
Lands
N0200400600 ftParkUrban Growth
Area Line Bndy.
EdgeBackwater Floodplain
Acquisition
$
Restoration
Primary strategy
Protect, restore, and enhance floodplain connectivity.
Benefits:
• Increased habitat connectivity
• Increased rearing habitat
• Water temperature reduction
Contribution to goals metrics:
• LG - O-channel habitat
• LG - Riparian forest
PROJECT DESCRIPTION:
Acquire, remediate and restore wrecking yards
with side channels and backwater features.
Tier 1 Project: LG-6
Wrecking Yards Restoration
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
24.1 - 24.9 / left bank
Banksidejurisdiction:
King County
Project sponsor:
King County
Budget:
$37,000,000
PROJECT TYPE:
Site Photo: Google Earth Project Area Map: Ortho2019KCNAT aerial photo
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
Side channel WetlandRiparian
KEY HABITAT:
PAGE
121 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
Mill CreekS 277th St
West Valley Hwy N68th Ave S167
AUBURN
KENT
UNINCORPORATED
KING COUNTY
LG-8
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
Public
Lands
N0200400 ftInc. Area
BoundaryParkUrban Growth
Area Line Bndy.
Edge Floodplain
Acquisition
$
Restoration
Tributary
Primary strategy
Protect, restore, and enhance channel complexity and
edge habitat.
Benefits:
• Increased habitat connectivity
• Increased rearing habitat
• Water temperature reduction
Contribution to goals metrics:
• LG - Large woody debris
• LG - Riparian forest
PROJECT DESCRIPTION:
Improve aquatic habitat by remeandering the
tributary channel, revegetating, and adding large
wood to the creek channel.
Tier 1 Project: LG-8
Lower Mill Creek Channel Restoration
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 23.7/left bank
(Mill Creek 0.3-2.3)
Banksidejurisdiction:
King County
Project sponsor:
King County
Budget:
$23,900,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
PAGE
122 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
PAGE
123 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
277th St C o r r id o r T r a ilLG-22
RM
27
Gre
e
n
R
i
v
e
r
Mill Cr.
North Green
River Park
Mill Creek
Earthworks Park
Riversands
Park
G
r
e
e
n
R
i
v
e
r
R
d
SE 267th StWoodland Way SS 277th St
KENT
KENT
AUBURN
UNINCORPORATED
KING COUNTY
K ING C OUNT YSeattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
Public
Lands
N0200400 ftInc. Area
BoundaryParkUrban Growth
Area Line Bndy.
Edge Floodplain
Acquisition
$
Restoration
TributarySide channel Wetland
Riparian
Primary strategy
Protect, restore, and enhance floodplain connectivity.
Benefits:
• Habitat preservation
• Increased habitat connectivity
• Increased rearing habitat
Contribution to goals metrics:
• LG - O-channel habitat
• LG - Riparian forest
PROJECT DESCRIPTION:
Acquire and restore approximately 30 acres of
floodplain wetlands and provide access to 2,000
feet of non-natal tributary rearing habitat. Project
would address an existing fish barrier at the mouth
of the creek and setback 1,800 feet of Green River
Road. Project design will need to consider future
location of the Green River Trail.
Tier 1 Project: LG-22
Wetland Floodplain Off-channel Habitat Reconnection
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
27.2 - 27.6 /
right bank
Jurisdiction:
King County
Project sponsor:
King County
Budget:
$1,165,000
PROJECT TYPE:
Site Photo: Google Earth Project Area Map: Ortho2019KCNAT aerial photo
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
AGENDA ITEM #6. e)
LG-28
RM
27
Mill Cr.
Gr
e
e
n
R
i
v
e
r
Tr
a
i
l
-
K
e
n
t
North Green
River Park
Horsehead Bend
Natural Area
Mill Creek
Earthworks
Park
Green River RdWoodland Way SGree
n
R
i
v
e
r
R
d
S
Gr
e
e
n
R
i
v
e
r
KENT
UNINCORPORATED
KING COUNTY
UNINCORPORATED
KING COUNTY
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
Public
Lands
N0200400 ft.Park Urban Growth
Area Line Bndy.
Inc. Area
Boundary
EdgeBackwater Floodplain
Acquisition
$
Restoration
Side channel
Wetland
Riparian Tributary
Primary strategy
Protect, restore and enhance floodplain connectivity.
Benefits:
• Flood risk reduction
• Increased habitat connectivity
• Increased rearing habitat
Contribution to goals metrics:
• LG - Bank armor
• LG - O-channel habitat
PROJECT DESCRIPTION:
Restore floodplain habitat by removing revetments,
restoring reconnecting floodplain wetland, creating
side channels and backwater features, and
integrating stream channel from the adjacent project
(LG-22). Project design will need to preserve or
relocate important regional recreational amenities
(i.e., soccer fields and Green River access).
Tier 1 Project: LG-28
North Green River Park
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
26.5 - 27.3 /
right bank
Jurisdiction:
King County
Project sponsor:
King County
Budget:
$17,100,000
PROJECT TYPE:
Site Photo: Google Earth Project Area Map: Ortho2019KCNAT aerial photo
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
LG-22 Frager Rd TrailLG-29
RM
19
Gr
e
e
n
R
i
v
e
rGreen River Trail - KentKent Puget
Power Trail
Green River Trail - KentGrandview
Park
Green River
Trail Site - Kent
Green RiverNaturalResources Area
Van DorensLanding Park
Rive
rv
iew
B
lvd
S
Veterans Dr
KENT
KENT
SEATAC
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
Public
Lands
N0200400 ft.Park Inc. Area
Boundary
Floodplain
Restoration
WetlandRiparian
Primary strategy
Protect, restore and enhance floodplain connectivity.
Benefits:
• Increased habitat connectivity
• Increased rearing habitat
• Recreation opportunities
Contribution to goals metrics:
• LG - O-channel habitat
PROJECT DESCRIPTION:
Reconnect floodplain wetland to river, improve
wetland area, while preserving Frager Road Trail's
connection to the Green River.
Tier 1 Project: LG-29
North of Veterans Drive Floodplain
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 18.9 - 19.2/
left bank
Banksidejurisdiction:
City of Kent
Project sponsor:
City of Kent
Budget:
TBD
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
Enhancement/
Planting
Planning/
Design
PAGE
124 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
Frager Rd TrailLG-29
RM
19
Gr
e
e
n
R
i
v
e
rGreen River Trail - KentKent Puget
Power Trail
Green River Trail - KentGrandview
Park
Green River
Trail Site - Kent
Green RiverNaturalResources Area
Van DorensLanding Park
Rive
rv
iew
B
lvd
S
Veterans Dr
KENT
KENT
SEATAC
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
Public
Lands
N0200400 ft.Park Inc. Area
Boundary
Floodplain
Restoration
WetlandRiparian
Primary strategy
Protect, restore and enhance floodplain connectivity.
Benefits:
• Increased habitat connectivity
• Increased rearing habitat
• Recreation opportunities
Contribution to goals metrics:
• LG - O-channel habitat
PROJECT DESCRIPTION:
Reconnect floodplain wetland to river, improve
wetland area, while preserving Frager Road Trail's
connection to the Green River.
Tier 1 Project: LG-29
North of Veterans Drive Floodplain
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 18.9 - 19.2/
left bank
Banksidejurisdiction:
City of Kent
Project sponsor:
City of Kent
Budget:
TBD
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
Enhancement/
Planting
Planning/
Design
PAGE
125 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
RM
21
RM
20
LG-33
Green River Trail - Kent
Frager Rd Trail RiverbendGolf Course
RiverbendGolf Course
Green RiverTrail Site - Kent
CottonwoodGrove Park 53rd Pl S516
KENT
UNINCOR
PORATED
KING COUNTY
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
Public
Lands
N0200400 ft.Park Inc. Area
Boundary
Floodplain
Restoration
Wetland
Riparian
Acquisition
$
Monitoring &
Assessment
Enhancement/
Planting
Planning/
Design
Side channel
Scoping/
Reconnaissance
Backwater
Primary strategy
Protect, restore and enhance floodplain connectivity.
Benefits:
• Increased habitat connectivity
• Increased rearing habitat
• Water temperature reduction
Contribution to goals metrics:
• LG - O-channel habitat
• LG - Riparian forest
PROJECT DESCRIPTION:
Restore Midway Creek and floodplain wetland
complex by removing wetland fill and improving
fish passage to enhance connectivity between the
Midway Creek and the Green River. Project design
should maintain/enhance regional trail
connectivity.
Tier 1 Project: LG-33
Midway Creek Wetland Complex
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 19.6 - 21.1/
left bank
Banksidejurisdiction:
City of Kent
Project sponsor:
City of Kent
Budget:
TBD
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT: Gre e n R i v er
LG-34
Valley Floor Community ParkValley Floor Community Park
42nd Ave SRiverview Blvd SS 212th StOrillia Rd SKENT
KENT
TUKWILA
SEATAC
UNINCORPORATED
KING COUNTY
Green RiverK ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
Public
Lands
N0200400 ft.Park Inc. Area
Boundary
Floodplain
Restoration
Riparian
Monitoring &
Assessment
Enhancement/
Planting
Planning/
Design
Education
& Outreach
Tributary
Primary strategy
Protect, restore and enhance floodplain connectivity.
Benefits:
• Flood risk reduction
• Increased habitat connectivity
• Increased rearing habitat
Contribution to goals metrics:
• LG - O-channel habitat
• LG - Riparian forest
PROJECT DESCRIPTION:
Acquire properties, setback road and trail,
reconnect floodplain, and create o-channel
habitat to improve water quality and increase fish
access.
Tier 1 Project: LG-34
Johnson Creek Floodplain
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 17.2 - 17.8/
left bank
Banksidejurisdiction:
City of Kent
Project sponsor:
City of Kent
Budget:
TBD
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
PAGE
126 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
LG-34
Valley Floor Community ParkValley Floor Community Park
42nd Ave SRiverview Blvd SS 212th StOrillia Rd SKENT
KENT
TUKWILA
SEATAC
UNINCORPORATED
KING COUNTY
Green RiverK ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
Public
Lands
N0200400 ft.Park Inc. Area
Boundary
Floodplain
Restoration
Riparian
Monitoring &
Assessment
Enhancement/
Planting
Planning/
Design
Education
& Outreach
Tributary
Primary strategy
Protect, restore and enhance floodplain connectivity.
Benefits:
• Flood risk reduction
• Increased habitat connectivity
• Increased rearing habitat
Contribution to goals metrics:
• LG - O-channel habitat
• LG - Riparian forest
PROJECT DESCRIPTION:
Acquire properties, setback road and trail,
reconnect floodplain, and create o-channel
habitat to improve water quality and increase fish
access.
Tier 1 Project: LG-34
Johnson Creek Floodplain
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 17.2 - 17.8/
left bank
Banksidejurisdiction:
City of Kent
Project sponsor:
City of Kent
Budget:
TBD
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
PAGE
127 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
RM
14
LG-35
G
reen River
Interurban Trail - TukwilaGreen River Trail - TukwilaInterurbanTrail Site - Tukwila
InterurbanTrail Site - Tukwila
Minkler
Blvd Andover Park E181TUKWILA
RENTON
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
Public
Lands
N0200400 ft.Park Incorp. Area
Boundary
Floodplain
Restoration
Riparian
Acquisition
$
Planning/
Design
Side channel
Scoping/
Reconnaissance
Primary strategy
Protect, restore and enhance floodplain connectivity.
Benefits:
• Flood risk reduction
• Increased habitat connectivity
• Increased rearing habitat
Contribution to goals metrics:
• LG - O-channel habitat
PROJECT DESCRIPTION:
Relocate the City of Tukwila's stormwater pond;
clean and connect the existing pond to the river,
setback the levee to create up to 7 acres of o
channel habitat.
Tier 1 Project: LG-35
P-17 Pond Connection Reconnection
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 13.7- 13.9/
left bank
Banksidejurisdiction:
City of Tukwila
Project sponsor:
City of Tukwila
Budget:
$37,000,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: Google Earth
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
P-17Pond
PAGE
128 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
RM
28
LG-39
Gr
e
e
n
R
i
v
e
r
Green River Trail - Auburn
277th St Cor r i d o r T r a i l
North Green River ParkNorth Green River Park
Mary Olson Farm
Mary Olson Farm
Riversands ParkRiversands Park
Green River Trail SiteGreen River Trail Site
G
r
e
e
n
R
i
v
e
r
R
d
AUBURN
KENT
UNINCOR
PORATED
KING
COUNTY
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
N0200400 ft.Inc. Area
Boundary
Public
LandsPark
Floodplain
Restoration
Riparian
Primary strategy
Protect, restore and enhance floodplain connectivity.
Benefits:
• Flood risk reduction
• Increased habitat connectivity
• Increased rearing habitat
Contribution to goals metrics:
• LG - O-channel habitat
PROJECT DESCRIPTION:
Connect the Port of Seattle's existing wetland
mitigation site with the 100-year floodplain. Within
the ~78 acres of reconnected floodplain,
approximately 11 acres would be available as
regularly inundated o-channel rearing habitat for
Chinook salmon. The Port also owns an adjacent
34 acre site to the west which could support
restoration of additional wetland habitat and
further enhance floodplain connectivity. Project
Design will need to address future Green River Trail
alignment around this project area.
Tier 1 Project: LG-39
Port of Seattle Mitigation Site Floodplain Connection
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
27.9 - 28.2 / left bank
Jurisdiction:
City of Auburn
Project sponsor:
Port of Seattle
Budget:
TBD
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: Google Earth
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
WetlandBackwater
PAGE
129 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
G re e n River Trail -
K
e
ntFrager Rd
T
r
a
i
l
RM
22
LG-40Green Ri
v
e
r
Riverbend Golf Course
Lake Fenwick Park
Hogan ParkRussel
l
Rd
W Meeker
St
KENT
UNINCORPORATED
KING COUNTY
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
N0200400 ft.Inc. Area
Boundary
Public
Lands
Urban Growth
Area Line Bndy.Park
Restoration
Primary strategy
Protect, restore and enhance floodplain connectivity.
Benefits:
• Flood risk reduction
• Increased habitat connectivity
• Increased rearing habitat
Contribution to goals metrics:
• LG - Large woody debris
• LG - O-channel habitat
• LG - Riparian forest
PROJECT DESCRIPTION:
Create network of side channels to provide
rearing habitat and increase flood storage
capacity, add large wood to create habitat
complexity, cover and refuge, and lower peak
flood elevations during 100-year flood events.
Tier 1 Project: LG-40
Downey Side Channel Restoration
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 21.5 - 22/
left bank
Banksidejurisdiction:
City of Kent
Project sponsor:
City of Kent
Budget:
$6,800,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: Google Earth
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
Side channel
Monitoring &
Assessment
516
Gr
e
e
n
R
i
v
e
r
PAGE
130 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
PAGE
131 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 UpdateFrager Rd TrailRussell RdRussell Rd SRM
18
LG-42
Green RiverGreen River Natural Reso u r c e s A rea TrailsGreen River Trail - K e n t
Green River Natural Resources Area
Valley Floor Community Park
Van Dorens Landing Park
Green RiverTrail Site - Kent
S 216th StRiverview Blvd SS 212th St
KENT
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
N0200400 ft.Public
LandsPark Trail
Floodplain
Restoration
Edge Side channel
Monitoring &
Assessment
Enhancement/
Planting
Planning/
Design
Primary strategy
Protect, restore, and enhance floodplain connectivity.
Benefits:
• Flood risk reduction
• Increased habitat connectivity
• Increased rearing habitat
Contribution to goals metrics:
• LG - Large woody debris
• LG - O-channel habitat
• LG - Riparian forest
PROJECT DESCRIPTION:
Create o-channel habitat by grading and
reshaping the bank, widening the channel,
restoring channel complexity and meanders,
excavating low benches, installing large wood,
and planting native vegetation.
Tier 1 Project: LG-42
Lower Russell Road: Habitat Area A
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 17.9 - 18.3/
right bank
Banksidejurisdiction:
City of Kent
Project sponsor:
City of Kent
Budget:
TBD
Project Area Map: Ortho2019KCNAT aerial photo Site photo: Google Earth
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
PROJECT TYPE:
AGENDA ITEM #6. e)
PAGE
132 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Fr
a
g
e
r
R
d
T
r
a
i
l
LG-45
Green River
Green River Trail - Ke n t
Riverbend Golf Course
RussellRoad Park
Green River TrailSite - Kent
CottonwoodGrove Park
Russel
l
Rd53rd Pl SLakesi
d
e
B
l
v
d
W
W James St
W Meeker
St
KENT
KENT
RM
20
RM
21
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
Public
Lands
N0200400 ft.Park
Floodplain
Restoration
Wetland
Riparian
Edge
Enhancement/
Planting
Planning/
Design
Side channel
Backwater
Primary strategy
Protect, restore, and enhance floodplain connectivity.
Benefits:
• Flood risk reduction
• Increased habitat connectivity
• Increased rearing habitat
Contribution to goals metrics:
• LG - Large woody debris
• LG - O-channel habitat
• LG - Riparian forest
PROJECT DESCRIPTION:
Restore 36 acres by creating side channel and
backwater habitat on a largely undeveloped
shoreline in City of Kent.
Tier 1 Project: LG-45
Teufel Off Channel Habitat Restoration
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
20 - 20.8 /
left bank
Jurisdiction:
Kent
Project sponsor:
King County Flood
Control District
Budget:
$12,525,000 -
$33,975,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
Tributary
Upland
AGENDA ITEM #6. e)
PAGE
133 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Tier 2 Project: LG-1
Reddington Habitat Creation
PROJECT DESCRIPTION:
The previous Reddington Levee Setback project was
done with a focus on flood risk reduction benefits and
left two areas waterward of the levee that have room
for side channel and/or backwater type habitats. This
project would design and create additional habitat
integrated with the existing habitat features on site.
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
28.6 - 28.2 /
left bank
Jurisdiction:
King County
Project sponsor:
King County
Budget:
TBD
PROJECTTYPE:KEYHABITAT:
Backwater
Side Channel
Floodplain
Edge
Restoration
LG-1
Green River Trail - AuburnTrailsBrannan Park BrannanPark
MaryOlsonFarm
Issac EvansPark
NorthGreen RiverPark
RiverpointPark
Green River Rd SEGreen River RdAUBURN
Green RiverRM
29
LG-1
N0300600 ft150ParkPublic Lands
KCIT-DCE VC folder: 2010_10202w_LG-1.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdFloodplain
Wetland
EdgeRestoration
TributaryRiparian
LG-49
Green River Trail - KentHorsehead BendNatural Area
S 266th St Maple LnEast Valley Hwy SCentral Ave S86th Ave
S
KENT
Green RiverUNINCORPORATED
KING COUNTY
KCIT-DCE VC folder: 2010_10202w_LG-5.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdLG-5
Tier 2 Project: LG-5
Northeast Auburn Creek Rehabilitation
PROJECT DESCRIPTION:
Enhance floodplain and stream habitat by creating
o channel rearing and high flow refuge habitat for
juvenile salmon. Project will improve fish passage,
which is currently partially obstructed by a flapgate
at the mouth of the creek.
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
25.3 / left bank
Jurisdiction:
King County
Project sponsor:
King County
Budget:
$5,500,00
PROJECTTYPE:KEYHABITAT:
Park Public
Lands
Incorp. Area
Boundary
Urban GrowthBoundary N0300 ft
AGENDA ITEM #6. e)
PAGE
134 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
FloodplainEdge
Acquisition
$
Restoration
TributaryRiparian
LG-7
Mi
l
l
C
r
e
e
k
LakeFenwickPark
Private Rd
5
2
n
d
A
v
e
S
KENT
UNINCORPORATED
KING COUNTYMullen SloughKCIT-DCE VC folder: 2010_10202w_LG-7.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdN0300600 ft150
Tier 2 Project: LG-7
Mullen Slough
PROJECT DESCRIPTION:
This project would remeander and revegetate the
tributary, increasing quantity and quality of aquatic
habitat.
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
21.5 / left bank
(Mullen Slough
1 - 2)
Jurisdiction:
King County
Project sponsor:
King County
Budget:
$9,600,000
PROJECTTYPE:KEYHABITAT:
LG-7
Park Incorp. Area
Boundary
Urban GrowthBoundary
Floodplain
EdgeEnhancement/
Planting
Restoration
Scoping/
Reconnaissance
Riparian Frager Rd TrailFr
a
g
e
r
R
d
S
KCIT-DCE VC folder: 2010_10202w_LG-10.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdLG-10
Green Riv
e
r
Green River Trail
Site - Kent Trails
Valley FloorCommunity Park
ThreeFriendsFishingHole
59th Pl SSouthcenter PkwyRussell RdS 200th St
KENT
TUKWILA
RM
17
Green River T
r
a
i
l
-KentN0300600 ft150
LG-10
Tier 2 Project: LG-10
Boeing Levee Setback Habitat Rehabilitation
PROJECT DESCRIPTION:
Balance future habitat, flood protection and recreation
on the site. Explore opportunities to add alcove
habitat, excavate low benches and alcoves, install
large wood, and plant native riparian vegetation, while
maintaining/enhancing the recreational trail user
experience.
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
17 - 17.8 / right bank
Jurisdiction:
City of Kent
Project sponsor:
City of Kent
Budget:
TBD
PROJECTTYPE:KEYHABITAT:
Park Public
Lands
AGENDA ITEM #6. e)
PAGE
135 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Floodplain
EdgeEnhancement/
Planting
Restoration
Riparian
LG-12 BriscoePark
62nd Ave SSouthcenter PkwyS 190th St
S 1
8
4
t
h
P
l
TUKWILA
KENT
SEATAC
G r e e n R iver Trail -Kent
G re e n R i v e r
RM
16
KCIT-DCE VC folder: 2010_10202w_LG-12.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdN0300600 ft150
LG-12
Tier 2 Project: LG-12
Briscoe Park Off-channel Habitat
PROJECT DESCRIPTION:Create o-channel habitat at Briscoe Park by removing bank armor, excavating perched floodplain, installing large wood, and planting riparian vegetation. Project design needs to address potential impacts to recreational amenities at Briscoe Park.
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 15.6 - 16.1 / right bank
Bankside jurisdiction:
City of Kent
Project sponsor:
City of Kent
Budget:
TBD
PROJECTTYPE:KEYHABITAT:
5
Park Public
Lands
Incorp. Area
Boundary
Enhancement/
Planting Planning/
Design
Restoration Scoping/
Reconnaissance
Backwater
Floodplain
Edge
Riparian
Fort DentPark
TukwilaPark65th
Ave
S62nd Ave SS 151st St
In
te
ru
rban
Ave
S
South
c
e
n
t
e
r
Blvd
TUKWILA
RENTON
G reen R iv e r
G
r
e
e
n
Ri
ver Trail - TukwilaI
nt
er
urban TrailTukwilaRM
12
181405
KCIT-DCE VC folder: 2010_10202w_LG-17.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdN0300600 ft150
LG-17
Tier 2 Project: LG-17
Fort Dent Revetment Setback
PROJECT DESCRIPTION:Setback portions of the Fort Dent revetment to create shallow water habitat, riparian forest, and o-channel habitat.
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 11 - 11.8 /
right bank
Bankside
jurisdiction:
City of Tukwila
Project sponsor:
City of Tukwila
Budget:
$4,699,000
PROJECTTYPE:KEYHABITAT:
Park Public
Lands
Incorp. Area
Boundary
AGENDA ITEM #6. e)
PAGE
136 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Enhancement/
Planting
Acquisition
$
Planning/
Design
Restoration
Scoping/
Reconnaissance
Duwamish
Marsh
Duwamish
Mudflat
Backwater
Edge
Riparian
KCIT-DCE VC folder: 2010_10202w_LG-18.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdLG-18
Black Riv
e
rLake to Sound TrailGreen River Trail -
L
o
we
r
G
r
e
e
n
R
i
v
e
r
Trail - TukwilaFort DentPark
BlackRiverPumpStation
FosterGolf Links
BlackRiverForest
In
te
ru
rban
A
ve
SMo
n
s
t
e
r
R
d
SW68th
Ave
S
TUKWILA
RENTON
G
r
e
e
n
Ri
verDuwamish River
RM
11
LG-18
N0300600 ft150
Tier 2 Project: LG-18
Black River Marsh
PROJECT DESCRIPTION:Create an island at the confluence of the Black, Green, and Duwamish Rivers, and increase edge habitat, flood storage, and o-channel refuge. Revegetate the shoreline along the Black River up to the Black River Pump Station.
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 11 - 11.8 /
right bank
Bankside
jurisdiction:
City of Tukwila
Project sponsor:
City of Tukwila
Budget:
$4,699,000
PROJECTTYPE:KEYHABITAT:
Park Public
Lands
Incorp. Area
Boundary
Wetland
Monitoring &
Assessment
Acquisition
$
Planning/
Design
Restoration
Scoping/
Reconnaissance
Tributary
Edge Riparian
KCIT-DCE VC folder: 2010_10202w_LG-19.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdLG-19Springbook
CreekBlack River
SpringbrookTrailBlack River
Forest
Waterworks Gardens
SW 16th St
SW 7th St
SW Grad
y
W
a
y Oakesdale
Ave
SW
RENTON
TUKWILA
LG-19
IMAGE_Ortho2019KCNAT
405
N0300600 ft150
Tier 2 Project: LG-19
Lower Springbrook Reach Rehabilitation
PROJECT DESCRIPTION:Improve the aquatic and riparian habitat for Lower Springbrook Creek with riparian plantings, large woody debris, pool construction, channel branch excavation, and potential two-stage channel.
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 11 /
right bank
Bankside
jurisdiction:
City of Renton
Project sponsor:
City of Renton
Budget:
$20,000,000
PROJECTTYPE:KEYHABITAT:
Park Public Lands
AGENDA ITEM #6. e)
PAGE
137 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Side Channel
FloodplainEnhancement/
PlantingAcquisition
$
Planning/
Design
Restoration Riparian
KCIT-DCE VC folder: 2010_10202w_LG-23.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdLG-27
104th Avenue SE
Park
Scootie
Brown
ParkM St NER St NE14th St NE Ri
ver
vi
ew Dr NE104th Ave SE8th St NE Lea Hill Rd SEGreen River
AUBURN
RM
31
LG-23
N0300600 ft150
Tier 2 Project: LG-23
8th Street Bridge to 104th Ave Park Off-Channel Habitat
PROJECT DESCRIPTION:Acquire private properties and restore o-channel and riparian habitat, including up to 0.25 miles of potential side channel.
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 30.4 - 31.1 /
right bank
Bankside
jurisdiction:
City of Auburn
Project sponsor:
City of Auburn
Budget:
TBD
PROJECTTYPE:KEYHABITAT:
Park Public Lands
FloodplainEnhancement/
Planting
Acquisition
$
Planning/
Design
Restoration
Tributary
Riparian
KCIT-DCE VC folder: 2010_10202w_LG-26.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdGreen
R
ive
r
T
ra
i
l
-
Aubu
rn
Issac Evans
Park
Green River Trail Site
Dykstra
Park State Park Auburn Narrows
104th Avenue SE Park
Green
R
i
v
e
r
R
d
S
E
22nd St NE
Rive
rv
iew
D
r
NE104th Ave SELea Hill Rd
S
ESE 304th WayG re en River
AUBURN
RM
30
LG-26
IMAGE_Ortho2019KCNAT
N0300600 ft150
Tier 2 Project: LG-26
Valentine Revetment Setback
PROJECT DESCRIPTION:Setback the existing revetment and relocate Green River Road to the north, away from the river. Realign the unnamed fish stream into the historic channel and install a fish friendly culvert.
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 30.1 - 29.8 /
right bank
Bankside
jurisdiction:
City of Auburn
Project sponsor:
City of Auburn
Budget:
TBD
PROJECTTYPE:KEYHABITAT:
Park Public Lands
AGENDA ITEM #6. e)
PAGE
138 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
FloodplainAcquisition
$
Planning/
Design
Restoration
Riparian
KCIT-DCE VC folder: 2010_10202w_LG-27.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdState
Park
Auburn
Narrows
Scootie
Brown
Park
Lea Hill
Tennis Courts
R St NE105
th
P
l
SE107th Pl SE8th St NE 104th Ave SELea Hill Rd SEE Main St
SE 320th St
R St SEGreen
R
i
v
e
r
AUBURN
RM
31
LG-27
IMAGE_Ortho2019KCNAT
Tier 2 Project: LG-27
8th Street Acquisitions
PROJECT DESCRIPTION:Acquire properties and restore o-channel and riparian habitat.
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 31.1 - 31.4 /
right bank
Bankside
jurisdiction:
City of Auburn
Project sponsor:
City of Auburn
Budget:
TBD
PROJECTTYPE:KEYHABITAT:
Park Public
Lands
Incorp. Area
Boundary
Urban GrowthBoundary N0300 ft
Floodplain
EdgeAcquisition
$
Restoration
Riparian
KCIT-DCE VC folder: 2010_10202w_LG-30.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdFrager
R
d
T
r
a
i
l
Mill CreekInterurban Trail - KentGreen River T
r
a
i
l
Kent
WillisStreetGreenbelt
Kiwanis
Park #4
74th Ave SS 259th St68th Ave SWashingtonAve SG
re
e
n River
KENT
UNINCORPORATED
KING COUNTY
167
181
518
RM
23
RM
24
LG-30
IMAGE_Ortho2019KCNAT
Tier 2 Project: LG-30
Mill Creek to Washington Ave Bridge Acquisitions and Restoration
PROJECT DESCRIPTION:Acquire left bank properties from Mill Creek (Auburn) to Washington Ave. S. bridge and install native plantings.
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 23.2- 23.7 /
left bank
Bankside
jurisdiction:
City of Kent
Project sponsor:
City of Kent
Budget:
TBD
PROJECTTYPE:KEYHABITAT:
Park Public
Lands
Incorp. Area
Boundary
Urban GrowthBoundary N0300 ft
AGENDA ITEM #6. e)
PAGE
139 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
FloodplainEnhancement/
Planting
Planning/
Design
Restoration
KCIT-DCE VC folder: 2010_10202w_LG-31.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdFrager Rd TrailKent Puget Power Trail
Riverview Blvd SVeterans Dr
S 22
8
t
h
S
t
SR 5
16 Frager Rd SKENT
KENT
RM
19
Green River
T
r
a
i
l
-
KentG
reen River
LG-31
IMAGE_Ortho2019KCNAT
Tier 2 Project: LG-31
South of Veterans Drive Floodplain Reconnection
PROJECT DESCRIPTION:Create o-channel habitat in small triangle of flat land behind Frager Road.
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 19.4 - 19.3 /
left bank
Bankside
jurisdiction:
City of Kent
Project sponsor:
City of Kent
Budget:
TBD
PROJECTTYPE:KEYHABITAT:
N0300600 ft150ParkPublic
Lands
Incorp. Area
Boundary
Floodplain
Edge
Planning/
Design
Scoping/
Reconnaissance
Riparian
KCIT-DCE VC folder: 2010_10202w_LG-32.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdLG-51
LG-30
Mill CreekInterurban Trail - KentGreen River Trail - KentGr
een River Trail - KentFoster
Park 3rd Ave SS 259th St74th Ave S79th Ave S72nd Ave SS 262nd St68th Ave SKENT
UNINCORPORATEDKING COUNTY
Gre
e
n River
RM
24
LG-32
167
IMAGE_Ortho2019KCNAT
Tier 2 Project: LG-32
Foster Park Floodplain Reconnection
PROJECT DESCRIPTION:Restore o-channel habitat within the park, while balancing flood protection and recreation.
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 23.9 - 24 /
right bank
Bankside
jurisdiction:
City of Kent
Project sponsor:
City of Kent
Budget:
TBD
PROJECTTYPE:KEYHABITAT:
N0300600 ft150ParkPublic
Lands
Incorp. Area
Boundary
AGENDA ITEM #6. e)
PAGE
140 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Backwater
Floodplain
Planning/
Design
Scoping/
Reconnaissance
Wetland
Riparian
LG-37Interurban Trail - TukwilaBicentennial
ParkAndover Park EStrander Blvd
SW 27th St
TUKWILA RENTON
Green RiverRM
13
181
LG-37
IMAGE_Ortho2019KCNAT
Tier 2 Project: LG-37
Strander Boulevard Off-Channel Habitat Creation
PROJECT DESCRIPTION:This project would connect an isolated wetland area in between two railroad tracks with the river creating floodplain connection and use for salmonid rearing and refugia.
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 13.1 / right bank
Bankside
jurisdiction:
City of Tukwila
Project sponsor:
City of Tukwila
Budget:
$10,000,000
PROJECTTYPE:KEYHABITAT:
N0300600 ft150ParkPublic
Lands
Incorp. Area
Boundary
KCIT-DCE VC folder: 2010_10202w_LG-37.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdFloodplain
Acquisition
$
Restoration
Tributary
Wetland
Riparian
Mill CreekInterurban Trail - AuburnM St NW29th St NW
Ron Crockett Dr NWWest Valley Hwy NAUBURN
167
LG-46
IMAGE_Ortho2019KCNAT
Tier 2 Project: LG-46
Mill Creek Protection and Restoration Near Emerald Downs
PROJECT DESCRIPTION:Acquire property and restore creek meander of the existing channel, revegetate the riparian zone and associated wetland habitat, and increase channel capacity to reduce existing flood risks.
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 23.7 / left bank
(Mill Creek
RM 3.0 - 4.4)
Bankside
jurisdiction:
King County
Project sponsor:
King County
Budget:
TBD
PROJECTTYPE:KEYHABITAT:
Park Public Lands N0300600 ft150
KCIT-DCE VC folder: 2010_10202w_LG-46.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdAGENDA ITEM #6. e)
PAGE
141 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Floodplain
EdgeEnhancement/Planting
Acquisition
$
Planning/Design
Restoration
Upland
Riparian Interurban Trail - KentGreen River T rail - KentFoster
ParkSR 167SR 167S 259th St 1st Ave S3rd Ave S74th Ave S79th Ave S72nd Ave SS 262nd St
G re e n R i v e r
RM
24
KENT
UNINCORPORATEDKING COUNTY
LG-51
IMAGE_Ortho2019KCNAT
Tier 2 Project: LG-51Milwaukee 2 Improvements
PROJECT DESCRIPTION:Excavate a backwater channel, remove all invasive vegetation and hardscape, and replace with native plants and trees. Place large wood within the project area. The project increases rearing and refuge habitat for salmon. The project must balance flood protection and recreation goals, including regional trail improvements.
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
24.0 - 24.3 /
left bank
Jurisdiction:
City of Kent
Project sponsor:
City of Kent
Budget:
TBD
PROJECT TYPE:KEY HABITAT:KCIT-DCE VC folder: 2010_10202w_LG-51.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdN0300600 ft150ParkPublic
Lands
Incorp. Area
Boundary
RM
25
RM
26
Horsehead Bend NaturalArea
Green River
Trail Site
Interurban
Trail Site -
Kent
S 259th St
S 266th St Maple Ln79th Ave S1st Ave S3rd Ave S80th Ave SS 262nd StS 261st StCentral Ave SEast Valley Hwy SGreen RiverInterurban TrailGreen River Trail
Green River TrailLG-49
Tier 2 Project: LG-49Horseshoe Bend Levee Riparian Habitat Improvements
PROJECT DESCRIPTION:Setback levee segments, and install large wood structures along the riverbank to provide salmon habitat.
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
24.25 - 26.25 /
right bank
Jurisdiction:
City of Kent
Project sponsor:
City of Kent
Budget:
TBD
PROJECTTYPE:KEYHABITAT:
Park Public
Lands
Incorp. Area
Boundary
Urban GrowthBoundary
KCIT-DCE VC folder: 2010_10202w_LG-49.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdUNINCORPORATEDKING COUNTY
KENT
N0400 ft
Floodplain
EdgeEnhancement/Planting
Planning/Design
Restoration
Scoping/
Reconnaissance
Riparian
AGENDA ITEM #6. e)
PAGE
142 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
EdgeRestoration
Riparian
IMAGE_Ortho2019KCNATFrager Rd TrailLG-55 Green River Trail - KentGreen River
Natural Resources
Area
Valley Floor
Community Park
Van Dorens
Landing
Park
S 216th St Riverview Blvd SS 212th St
S 216th St
Frager Rd SGreen RiverKENT
RM
18
LG-55
Tier 2 Project: LG-55Frager Road Levee Setback
PROJECT DESCRIPTION:Reconstruct the toe, slope and levee crest to a stable configuration with a fully bioengineered solution, including a vegetated bench.
PROJECT FACTS
Subwatershed:
Lower Green (LG)
River mile:
RM 17.25 - 18.75 /
left bank
Bankside jurisdiction:
City of Kent
Project sponsor:
City of Kent
Budget:
TBD
PROJECTTYPE:KEYHABITAT:KCIT-DCE VC folder: 2010_10202w_LG-55.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdPark Public Lands N0300600 ft150
AGENDA ITEM #6. e)
PAGE
143 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
PAGE
144
PAGE
145 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Table 5Lower Green River Subwatershed Tier 3 Projects
Proj#Project Name Project Type Description Sponsor
River mile and Bank side/
Nearshore jurisdiction Primary Strategy (pick 1)Jurisdiction Goal Alignment
LG-2 Olson Creek
Restoration
Restoration Improve quality of aquatic habitat through setting back the banks, adding large
wood to channel, and expanding riparian vegetation along the creek. Increase
amount and quality of flood refuge habitat by reconnecting southern grassy area
at lower flows and restoring as a wetland. This project will build off of a KCDOT
project to fix the fish passage barrier at the mouth in 2020.
King County RM 28.4 / right bank Protect, restore and enhance
instream flows and cold water
refugia
City of Auburn LG - Large woody debris
LG - Off-channel habitat
LG - Riparian Forest
LG-15 Nelsen Side Channel • Acquisition
• Enhancement/Planting
• Planning/Design
• Restoration
This project reconnects a segment of the former river channel that was discon-
nected with construction of I-405 and rerouting of the river.
City of Tukwila RM 12.5 /right bank Protect, restore, and enhance
channel complexity and edge
habitat
City of Tukwila LG - Large woody debris
LG - Off-channel habitat
LG - Riparian Forest
LG-16 Gilliam Creek
Fish Passage
and Riparian
Rehabilitation
• Enhancement/Planting
• Planning/Design
• Restoration
This project will replace a large flapgate that inhibits salmonid usage of the
Gilliam Creek tributary, and restore nearly 300 lineal feet of the lowest stretch of
Gilliam Creek.
City of Tukwila RM 12.5 / left bank Restore and improve fish passage City of Tukwila LG - Off-channel habitat
LG-20 Riverview Plaza
Off-channel Habitat
Creation
• Enhancement/Planting
• Planning/Design
• Restoration
This City-owned parcel once had a modest picnic area for viewing, but those
have since been removed. There are several, large cottonwood trees in this low
bank area with opportunities to create shallow water habitat while preserving
most or all of the trees. It is waterward of the levee and Green River Trail.
City of Tukwila RM 12.7 / left bank Protect, restore, and enhance
channel complexity and edge
habitat
City of Tukwila LG - Large woody debris
LG - Off-channel habitat
LG - Riparian Forest
LG-21 Best Western
Revetment Setback
• Acquisition
• Restoration
This project would setback this revetment to the extent possible. There is a hotel
80’ landward; setting it back somewhat could create some edge habitat. Should
look for opportunities in the event of property redevelopment.
City of Tukwila RM 12.7 / right bank Protect, restore and enhance
floodplain connectivity
City of Tukwila 1. Off-channel habitat
2. Riparian
3. Large Woody Debris
Forest
LG-38 Fenster Slough
Wetland Connection
• Enhancement/Planting
• Planning/Design
• Restoration
Reconnect approximately 1/2 acre of wetland area to the Green River that is
currently cut off by the Fenster II Levee. The area has the potential to provide
backwater/off-channel and riparian habitat functions.
City of Auburn RM 40 / left bank Protect, restore and enhance
floodplain connectivity
City of Auburn LG - Off-channel habitat
LG-43 Panther Creek at
East Valley Road
Improvement
Project
• Acquisition
• Enhancement/Planting
• Planning/Design
• Restoration
The project is intended to provide daylighting and habitat improvements of Pan-
ther Creek from river mile 0.5 to 0.0 and the adjacent East Valley wetlands. This
includes improving hydrologic and hydraulic function through repairing and/or
replacing the existing culverts at East Valley Road and Lind Ave SW.
City of Renton RM 1 1 / right bank Restore and improve fish passage City of Renton LG - Off-channel habitat
LG-52 Panther Creek at
Talbot Road South
Fish Passage
Improvement
• Acquisition
• Other
• Planning/Design
The project intends to provide fish passage and improved conveyance through a
culvert replacement along Panther Creek at the Talbot Road South culvert.
City of Renton Surface
Water Utility
RM 11 / right bank Restore and improve fish passage City of Renton LG - Off-channel habitat
LG-53 Signature
Pointe Levee
Improvements
• Enhancement/Planting
• Planning/Design
• Restoration
• Acquisition
Setback levee segments and slope. Install large wood and native riparian plants.
Address potential for recreational impacts of moving the trail further from the
river and closer to residential units.
City of Kent RM 23.15 - 21.75 / left
bank
Protect, restore, and enhance
channel complexity and edge
habitat
City of Kent LG - Bank Armor
LG - Large woody debris
LG - Off-channel habitat
LG-54 SR 516 to S 231st
Way Levee
• Planning
• Scoping/
• Reconnaissance
Balance habitat, flood protection, and recreation. Set back existing levee to allow
for more flood storage and habitat improvements. These potential improvements
include flatter riverbank side slopes, log jams along the river, and increased
riparian plantings.
City of Kent RM 21.75 - 19.2 5/ left
bank
Protect, restore and enhance
floodplain connectivity
City of Kent LG - Bank Armor
LG - Off-channel habitat
LG - Riparian Forest
LG-56 Kent Airport Levee
Setback
• Planning/Design
• Restoration
• Acquisition
Setback the levee, incorporate current stormwater pond into riparian buffer, and
install native plants.
City of Kent RM 24.1 - 23. 8/ left bank Protect, restore, and enhance
channel complexity and edge
habitat
City of Kent LG - Riparian Forest
LG-58 Briscoe Levee
Riparian Habitat
Improvements
• Enhancement/Planting
• Planning/Design
• Restoration
Re-grade side slopes that are overly steep, remove non-native invasive plant
species, and plant new native vegetation in areas that have not already been
improved. The project also includes installation of large wood structures along
the river’s edge throughout the length of the levee reach where feasible.
City of Kent RM 17.0 - 16.1 / right bank Protect, restore, and enhance
channel complexity and edge
habitat
City of Kent LG - Off-Channel Habitat AGENDA ITEM #6. e)
PAGE
146 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Tier 2 (Score 7-18) 5 projects
Middle Green River Subwatershed 14
projects
Tier 1 (Score 18+) 8 projects
MG-3 .......Flaming Geyser Floodplain Reconnection
MG-9 ......Lones Levee Restoration
MG-11 ......Turley Levee Setback
MG-13 .....Hamakami Levee Setback
MG-19 .....Lower Soos Creek Channel Restoration
MG-21 .....Whitney Bridge Reach Acquisition and Restoration
MG-24 ....Meyer/Imhof Levee Setback
MG-26 ....Newuakum Creek Tributary Acquisition and Restoration
Tier 3 (Score <7) 1 project
MG-6 ......Middle Newaukum Creek Riparian Planting and Large Woody Debris Placement
MG-10 .....Burns Creek Restoration
MG-16 .....Ray Creek Restoration
MG-20 ....Auburn Narrows Floodplain Restoration
MG-22 ....Kanaskat Reach Restoration
MG-25 ....Little Soos Restoration - Wingfield Neighborhood
AGENDA ITEM #6. e)
PAGE
147 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
MG-3MG-3MG-9MG-9
MG-6MG-6
MG-26MG-26
MG-24MG-24MG-13MG-13
MG-19MG-19 MG-23MG-23
MG-21MG-21
MG-10MG-10
MG-11MG-11
MG-20MG-20
MG-16MG-16
MG-25
Green RiverBig
Soos
Cr
.Big
Soos
Cr
.
Coal
C
r
.
Coal
C
r
.Jenkins Cr.Jenkins Cr.Deep Cr.Deep Cr.
Bear Cr.Bear Cr.
Ravensdale Cr.
Big S o o s Cr.Big S o o s Cr.Newauku
m Cr.
Newauku
m Cr.
18
Lake
Sawyer
Lake
Meridian
ENUMCLAWENUMCLAW
COVINGTONCOVINGTON
AUBURNAUBURN
KENTKENT
KENTKENT
KENTKENT
MAPLE
VALLEY
MAPLE
VALLEY
BLACK
DIAMOND
BLACK
DIAMOND
Tacoma HeadworksDiversion Dam
Lake
Youngs
River mile
Project location and
name
River/creek
Major road
Urban Growth Area
line
Middle Green River
Subwatershed
boundary
WRIA 9 boundary
Public lands
Incorporated area
Open water
1
MG-1
Figure __
Middle Green River
Subwatershed Projects
0 1 2 4 Miles
N
Note:The use of the information in this map is subject to the terms and conditions found at: www.kingcounty.gov/services/gis/Maps/terms-of-use.aspx. Your access and use is conditioned on your acceptance of these terms and conditions.
KCIT-DCE File: 2011_10202L_W9SHP_ProjMap_MGR.ai LPRE
GIS File:Q:\20009\WRIA9_Watershed.mxd KLINKAT
Figure 29
Middle Green River
Subwatershed Projects
AGENDA ITEM #6. e)
PAGE
148 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
RM
43
MG-3
Flaming Geyser Park
Flaming Geyser State Park
Black DiamondOpen Space
SE Green Valley Rd Green Riv e r
BLACK DIAMOND
UNINCORPORATED
KING COUNTY
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
N0200400 ft.Inc. Area
BoundaryPublic
Lands
Urban Growth
Area Line Bndy.Park
Restoration
Primary strategy
Protect, restore and enhance floodplain connectivity.
Benefits:
• Increased habitat connectivity
• Water temperature reduction
Contribution to goals metrics:
• MG - Bank armor
• MG - Floodplain connectivity/lateral channel migration
• MG - Large woody debris
• MG - Riparian forest
PROJECT DESCRIPTION:
Remove levee, relocate gravel in the levee
under-structure into the river channel, place large
wood in river channel and associated wetland,
and extensively the revegetate riparian zone
throughout state park.
Tier 1 Project: MG-3
Flaming Geyser Floodplain Reconnection
PROJECT FACTS
Subwatershed:
Middle Green (MG)
River mile:
RM 42-44/both banks
Banksidejurisdiction:
King County
Project sponsor:
King County
Budget:
$6,000,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: Google Earth
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
Side channel
Planning/
Design
Tributary
AGENDA ITEM #6. e)
PAGE
149 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
MG-9
G reen R i v e r N a t u ra lA r e a T r a i l s
Green River
Natural Area
SE Green Valley Rd.
Green Rive
r
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
N0200400 ft.Public
LandsPark
Restoration
Wetland
RiparianBackwater
Primary strategy
Protect, restore and enhance floodplain connectivity.
Benefits:
• Increased habitat connectivity
• Increased rearing habitat
• Water temperature reduction
Contribution to goals metrics:
• MG - Bank armor
• MG - Floodplain connectivity/lateral channel migration
• MG - Large woody debris
• MG - Riparian forest
PROJECT DESCRIPTION:
Remove existing levee, install setback feature to
protect agricultural land, place large wood in river
channel and remnant river channel, and
reintroduce gravel from remnant levee into river
channel.
Tier 1 Project: MG-9
Lones Levee Restoration
PROJECT FACTS
Subwatershed:
Middle Green (MG)
River mile:
RM 38/right bank
Banksidejurisdiction:
King County
Project sponsor:
King County
Budget:
$5,500,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: Google Earth
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
Side channel
Tributary
AGENDA ITEM #6. e)
RM
37
MG-11
Green River Natural Area
SE
G
r
e
e
n
V
a
l
l
e
y
R
d
Green RiverK ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
N0200400 ft.Public
LandsPark
Restoration
Floodplain
Acquisition
$
Wetland
RiparianBackwater
Primary strategy
Protect, restore, and enhance floodplain connectivity.
Benefits:
• Increased habitat connectivity
• Increased rearing habitat
• Water temperature reduction
Contribution to goals metrics:
• MG - Bank armor
• MG - Floodplain connectivity/lateral channel migration
• MG - Large woody debris
• MG - Riparian forest
PROJECT DESCRIPTION:
Acquire land, remove existing levee, setback new
revetment away from river channel, and increase
complexity with large wood in river channel and
associated wetland.
Tier 1 Project: MG-11
Turley Levee Setback
PROJECT FACTS
Subwatershed:
Middle Green (MG)
River mile:
RM 37 / left and right
bank
Banksidejurisdiction:
King County
Project sponsor:
King County
Budget:
$6,000,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: Google Earth
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
Side channel Tributary
PAGE
150 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
MG-13
Green RiverGreen RiverNatural Area
SE Green Valley Rd
AUBURN
UNINCORPORATED
KING COUNTY
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
N0200400 ft.Inc. Area
BoundaryPublic
Lands
Urban Growth
Area Line Bndy.Park
RestorationAcquisition
$
Wetland
RiparianBackwater
Primary strategy
Protect, restore, and enhance floodplain connectivity.
Benefits:
• Increased habitat connectivity
• Increased rearing habitat
• Water temperature reduction
Contribution to goals metrics:
• MG - Bank armor
• MG - Floodplain connectivity/lateral channel migration
• MG - Large woody debris
• MG - Riparian forest
PROJECT DESCRIPTION:
Acquire land, remove levee, relocate gravel in the
levee under-structure into the river channel,
construct revetment away from river, and place
large wood in river channel and associated
wetland.
Tier 1 Project: MG-13
Hamakami Levee Setback
PROJECT FACTS
Subwatershed:
Middle Green (MG)
River mile:
RM 35/right bank
Bankside Jurisdiction:
King County
Project sponsor:
King County
Budget:
$6,000,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: Google Earth
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
Side channel
Tributary
AGENDA ITEM #6. e)
PAGE
151 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
MG-13
Green RiverGreen RiverNatural Area
SE Green Valley Rd
AUBURN
UNINCORPORATED
KING COUNTY
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
N0200400 ft.Inc. Area
BoundaryPublic
Lands
Urban Growth
Area Line Bndy.Park
RestorationAcquisition
$
Wetland
RiparianBackwater
Primary strategy
Protect, restore, and enhance floodplain connectivity.
Benefits:
• Increased habitat connectivity
• Increased rearing habitat
• Water temperature reduction
Contribution to goals metrics:
• MG - Bank armor
• MG - Floodplain connectivity/lateral channel migration
• MG - Large woody debris
• MG - Riparian forest
PROJECT DESCRIPTION:
Acquire land, remove levee, relocate gravel in the
levee under-structure into the river channel,
construct revetment away from river, and place
large wood in river channel and associated
wetland.
Tier 1 Project: MG-13
Hamakami Levee Setback
PROJECT FACTS
Subwatershed:
Middle Green (MG)
River mile:
RM 35/right bank
Bankside Jurisdiction:
King County
Project sponsor:
King County
Budget:
$6,000,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: Google Earth
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
Side channel
Tributary
AGENDA ITEM #6. e)
PAGE
152 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
MG-19
Hatchery Natural Area
Porter Levee Natural AreaSE Auburn Black Diamond RdSR 1818
Green RiverState Salmon Hatchery
Big Soos Cr
G
re
e
n
R
i
v
e
r
AUBURN
UNINCORPORATED
KING COUNTY
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
N0200400 ft.Inc. Area
Boundary
Public
Lands
Urban Growth
Area Line Bndy.Park
RestorationAcquisition
$
Wetland
Riparian
Primary strategy
Protect, restore, and enhance floodplain connectivity.
Benefits:
• Water temperature reduction
Contribution to goals metrics:
• MG - Large woody debris
• MG - Riparian forest
PROJECT DESCRIPTION:
Restore habitat and increased water quality with
placement of large trees in streams and
associated wetlands, and plant native trees and
shrubs along riparian edge.
Tier 1 Project: MG-19
Lower Soos Creek Channel Restoration
PROJECT FACTS
Subwatershed:
Middle Green (MG)
River mile:
RM 33.3/right bank
Banksidejurisdiction:
King County
Project sponsor:
King County
Budget:
$1,500,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: Google Earth
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
Side channel
Tributary
AGENDA ITEM #6. e)
PAGE
153 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
RM
41
MG-21
Green River
Newaukum C
r
.
Green RiverNatural Area
WhitneyBridge Park
Lower NewaukumCreek Natural Area
SE
G
r
e
e
n
V
a
l
l
e
y
R
d
21
2
t
h
A
v
e
S
E
21
2
t
h
A
v
e
S
E212th Way SE
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
N0200400 ft.Park
Restoration
Floodplain
Acquisition
$
Riparian
Primary strategy
Protect, restore, and enhance floodplain connectivity.
Benefits:
• Habitat preservation
• Increased habitat connectivity
• Increased rearing habitat
Contribution to goals metrics:
• MG - Floodplain connectivity/lateral channel migration
• MG - Large woody debris
• MG - Riparian forest
PROJECT DESCRIPTION:
Acquire approximately 40 acres, and install
several hundred pieces are large wood on ~3,500
lineal feet of river.
Tier 1 Project: MG-21
Whitney Bridge Reach Acquisition and Restoration
PROJECT FACTS
Subwatershed:
Middle Green (MG)
River mile:
41 / left and right bank
Jurisdiction:
King County
Project sponsor:
King County
Budget:
TBD
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: Google Earth
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
AGENDA ITEM #6. e)
PAGE
154 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
RM
41
MG-24
Green River
Newaukum C
r
.
Green RiverNatural Area
WhitneyBridge Park
Lower NewaukumCreek Natural Area
SE
G
r
e
e
n
V
a
l
l
e
y
R
d
21
2
t
h
A
v
e
S
E
2
1
2
t
h
A
v
e
S
E212th Way SE
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
N0 200 400 ft.Park
Restoration
Floodplain
Acquisition
$
Wetland
Riparian
Primary strategy
Protect, restore, and enhance floodplain connectivity.
Benefits:
• Habitat preservation
• Increased habitat connectivity
• Increased rearing habitat
Contribution to goals metrics:
• MG - Bank armor
• MG - Floodplain connectivity/lateral channel migration
• MG - Large woody debris
• MG - Riparian forest
PROJECT DESCRIPTION:
Acquire land, remove levee, construct set-back
structure away from the River, add wood to
floodway, and revegetate with native plants.
Tier 1 Project: MG-24
Meyer/Imhof Levee Setback
PROJECT FACTS
Subwatershed:
Middle Green (MG)
River mile:
40.5 - 41.5 /
right bank
Jurisdiction:
King County
Project sponsor:
King County
Budget:
$1,500,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: Google Earth
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
MG-26
Newaukum Cr.
Foothills Trail Site
284thAveSEVeazie-CumberlandRdSEK ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
N0 200 400 ft.
Public
Lands Park
RestorationAcquisition
$
Wetland
Riparian
Tributary
Primary strategy
Protect, restore, and enhance channel complexity and
edge habitat.
Benefits:
• Habitat preservation
• Increased rearing habitat
• Water temperature reduction
Contribution to goals metrics:
• MG - Large woody debris
• MG - Riparian forest
PROJECT DESCRIPTION:
Restore habitat and improve water quality with
placement of large wood in the stream channel
and associated wetlands, revegetating the
riparian area.
Tier 1 Project: MG-26
Newuakum Creek Tributary Acquisition
PROJECT FACTS
Subwatershed:
Middle Green (MG)
River mile:
RM 40.4/left bank
Banksidejurisdiction:
King County
Project sponsor:
King County
Budget:
$3,500,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
Side channel
AGENDA ITEM #6. e)
PAGE
155 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
MG-26
Newaukum Cr.
Foothills Trail Site
284th Ave SEVeazie-Cumberland Rd SEK ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
N0200400 ft.Public
Lands Park
RestorationAcquisition
$
Wetland
Riparian
Tributary
Primary strategy
Protect, restore, and enhance channel complexity and
edge habitat.
Benefits:
• Habitat preservation
• Increased rearing habitat
• Water temperature reduction
Contribution to goals metrics:
• MG - Large woody debris
• MG - Riparian forest
PROJECT DESCRIPTION:
Restore habitat and improve water quality with
placement of large wood in the stream channel
and associated wetlands, revegetating the
riparian area.
Tier 1 Project: MG-26
Newuakum Creek Tributary Acquisition
PROJECT FACTS
Subwatershed:
Middle Green (MG)
River mile:
RM 40.4/left bank
Banksidejurisdiction:
King County
Project sponsor:
King County
Budget:
$3,500,000
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
Side channel
AGENDA ITEM #6. e)
Acquisition
$
Restoration Side Channel
Wetland
Tributary
Riparian Newau k u m CreekSE 400th St226th Ave SESE 392nd St
224th Ave SEMG-6
IMAGE_Ortho2019KCNAT
Tier 2 Project: MG-6
Middle Newaukum Creek Riparian Planting and Large Woody Debris Placement
PROJECT DESCRIPTION:
Place large wood in the stream channel between
RM 6 - 10 and remove hardened streambanks.
PROJECT FACTS
Subwatershed:
Middle Green (MG)
River mile:
RM 40 / left bank
Bankside jurisdiction:
King County
Project sponsor:
King County
Budget:
$2,500,000
PROJECTTYPE:KEYHABITAT:KCIT-DCE VC folder: 2010_10202w_MG-6.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdN0300600 ft150
FloodplainAcquisition
$
Restoration WetlandTributary
Riparian
MG-10
Green River
Natural AreaSE Green Valley RdGreen R ive rBurns CreekMG-10
Tier 2 Project: MG-10Burns Creek Restoration
PROJECT DESCRIPTION:Restore lower two miles of Burns Creek by acquiring several parcels or portions of parcels, place large trees with rootwads attached in streams and associated wetlands, plant native trees and shrubs to significantly improve fish and wildlife habitat, wetlands, and water quality in an area which is very important for over-wintering salmon.
PROJECT FACTS
Subwatershed:
Middle Green (MG)
River mile:
RM 33 / right bank
Bankside
jurisdiction:
King County
Project sponsor:
King County
Budget:
$1,500,000
PROJECTTYPE:KEYHABITAT:KCIT-DCE VC folder: 2010_10202w_MG-10.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdPark Public Lands N0300600 ft150
PAGE
156 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
PAGE
157 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
FloodplainAcquisition
$
Restoration WetlandTributary
Riparian
MG-16
Neely Bridge
Natural Area
SE Green Valley R
dGr
e
e
n
R
i
v
e
r
RM
35AUBURN
UNINCORPORATEDKING COUNTY
MG-16
IMAGE_Ortho2019KCNAT
Tier 2 Project: MG-16Ray Creek Restoration
PROJECT DESCRIPTION:Acquire several conservation easements of at least 100’ buers, place large wood in stream, and plant native trees and shrubs in riparian buer. Build fencing for livestock exclusion to immediately improve of fish and wildlife habitat, wetlands, water quality in a degraded area.
PROJECT FACTS
Subwatershed:
Middle Green (MG)
Bankside
jurisdiction:
King County
Project sponsor:
King County
Budget:
$1,500,000
PROJECTTYPE:KEYHABITAT:
Park Public
Lands
Incorp. Area
Boundary
Urban GrowthBoundary N0300 ft
KCIT-DCE VC folder: 2010_10202w_MG-16.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdFloodplainAcquisition
$
Restoration Wetland
Riparian
Gre
e
n
R
i
v
e
r
Auburn Narrows
Natural Area
State Park
Auburn
Narrows
SE Auburn Black Diamond Rd
SE Green Valley R
d
18
MG-20
RM
33
AUBURN
AUBURN
UNINCORPORATEDKING COUNTY
IMAGE_Ortho2019KCNAT
Tier 2 Project: MG-20Auburn Narrows Floodplain Restoration
PROJECT DESCRIPTION:Remove gravel road in floodway, expand notch of previously-constructed side channel, add large wood, and plant native vegetation.
PROJECT FACTS
Subwatershed:
Middle Green (MG)
River mile:
RM 33 / left bank
Bankside
jurisdiction:
King County
Project sponsor:
King County
Budget:
$350,000
PROJECTTYPE:KEYHABITAT:
Park Public
Lands
Incorp. Area
Boundary
Urban GrowthBoundary N0300 ft
KCIT-DCE VC folder: 2010_10202w_MG-20.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdAGENDA ITEM #6. e)
PAGE
158
PAGE
159 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Kanaskat Natural Area
SE
H
u
d
s
o
n
R
d
Pipeline Rd
SE Green Rive
r
H
e
a
d
w
o
r
k
s
R
d
346th Ave SELa
k
e
U
m
e
k
R
d
S
E
UNINCORPORATEDKING COUNTY
MG-22
IMAGE_Ortho2019KCNAT
Tier 2 Project: MG-22Kanaskat Reach Restoration
PROJECT DESCRIPTION:Acquire about 3.5 acres, remove large house/garage/
septic, convert 3,300 lineal foot gravel road to backcountry trail, and extensively revegetate site.
PROJECT FACTS
Subwatershed:
Middle Green (MG)
River mile:
RM 59 / left bank
Bankside
jurisdiction:
King County
Project sponsor:
King County
Budget:
$600,000
Acquisition
$
Restoration
PROJECTTYPE:
Riparian
KEYHABITAT:KCIT-DCE VC folder: 2010_10202w_MG-22.ai GIS file Q:\20009\WRIA9_ProjectMaps.mxdPark Public Lands N0300600 ft150
Table 6
Middle Green River Subwatershed Tier 3 Projects
Proj. No.Project Name Project Type Project Description Sponsor
River mile and Bank
side/Nearshore
jurisdiction Primary Strategy (pick 1)Jurisdiction Goal alignment
MG-25 Little Soos
Restoration
- Wingfield
Neighborhood
• Education and outreach
• Planning/design
• Restoration
• Scoping/reconnaissance
Little Soos Creek at stream mile 1 runs through City of Covington
owned open space through the Coho Creek development. The stream
historically has been armored, disconnected from its floodplain and a
paved trail adjacent to the creek is often flooded in the winter. There
is an opportunity to restore in stream and floodplain habitat in the
stream through reconnecting the creek to its floodplain, restoring
side channels, removing artificial armoring, adding large wood, and
revegetating the riparian zone.
Mid Sound Fisheries
Enhancement Group
RM 33.3/right bank Protect, restore, and enhance
riparian corridors;
City of
Covington
• MG - Floodplain
connectivity/lateral channel
migration
• MG - Riparian forest
AGENDA ITEM #6. e)
UG-4
77 78
64
65
79
80 81 82
86
66
87
67
83
84
71
88
68
72
89
69
85
93
73
90
70
94
74
91
95
75
92
76
Smay Cr.Sunday Cr.Sn
o
w
C
r
.Sawmill Cr.
N.
F
o
r
k
G
r
e
e
n
R
i
v
e
r
Twin Ca
m
p
C
r.Charley Cr.Champion Cr.Tacom
a
Cr.
Gale C
r
.
Howard
Hansen
Reservoir
Green
R
i
v
e
r
0 1 2 4 Miles
N
River mile
Project location and name
River/creek
Major road
Urban Growth Area
line
King County boundary
Figure __
Lower Green River Subwatershed Projects
Note:
The use of the information in this map is subject to the
terms and conditions found at:
www.kingcounty.gov/services/gis/Maps/terms-of-use.asp
x. Your access and use is conditioned on your acceptance
of these terms and conditions.
KCIT-DCE File:
2011_10202L_W9SHP_ProjMap_UGR.ai LPRE
GIS File:
Q:\20009\WRIA9_Watershed.mxd KLINKAT
1 Upper Green River
Subwatershed boundary
WRIA 9 boundary
Public lands
Parks
Incorporated area
Open water
UG-1
Upper Green River Subwatershed 1
project
Tier 1 (Score 18+) 1 project
UG-4 .......Howard Hanson Downstream Fish Passage
Figure 30
Upper Green River
Subwatershed
Projects
PAGE
160 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
RM
64
UG-4
Howard
Hanson
Reservoir
Green
R
i
v
e
r
K ING C OUNT Y
Seattle
WRIA 9
Incorporated Area
N
Vashon/
Maury
Islands
Miles
0 5 10
LOCATION MAP
Seattle
PROJECT AREA MAP
N0200400 ft.Public
Lands
Edge Riparian
Planning/
Design
Scoping/
Reconnaissance
Tributary Upland
Primary strategy
Restore and improve fish passage.
Benefits:
• Increased habitat connectivity
• Increased rearing habitat
• Water temperature reduction
Contribution to goals metrics:
• UG - Bank armor
PROJECT DESCRIPTION:
Creation of downstream fish passage at the
Howard Hanson dam is the highest priority
project within the Green/Duwamish watershed as
it would have an immediate and dramatic impact
on all Viable Salmonid Population (VSP)
parameters of Chinook and steelhead.
Tier 1 Project: UG-4
Howard Hanson Downstream Fish Passage
PROJECT FACTS
Subwatershed:
Upper Green (UG)
River mile:
King County (RM 64)
Banksidejurisdiction:
King County
Project sponsor:
King County/Army
Corps of Engineers
Budget:
Unknown
PROJECT TYPE:
Project Area Map: Ortho2019KCNAT aerial photo Site photo: Google Earth
KCIT-DCE file: 2011_10202L LPRE GIS file Q:\20009\WRIA9_ProjectMaps.mxd KLINKAT
KEY HABITAT:
Side channel
PAGE
161 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
PAGE
162 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
PAGE
163 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Chapter 8:
Implementation Strategy
There are three major funding sources that sup-
port implementation of the projects and programs
prioritized within the Salmon Habitat Plan – Salm-
on Recovery Funding Board (SRFB), Puget Sound
Acquisition and Restoration Fund (PSAR), and King
County Flood Control District Cooperative Watershed
Management (CWM) grants. The WRIA also supports
project sponsors in seeking funding from various
other local, state and federal sources.
Annual Funding Package
WRIA 9 develops an annual funding package of pro-
jects based on anticipated allocations. The proposed
funding package is reviewed and approved by the
WRIA 9 Implementation and Technical Committee
(ITC) and Watershed Ecosystem Forum (WEF). This
funding package serves as the WRIA 9 Lead Entity’s
habitat project list, as defined in RCW 77.85.050.
Several factors are considered when building the
annual project list for funding. Primarily, the WRIA
supports projects from the list that demonstrate
readiness to proceed and have a high likelihood of
success, and where WRIA funding is critical to mov-
ing the project forward. Project tiering (Chapter VII)
will assist the ITC and WEF in making tough fund-
ing choices when there are more projects in need
than funding available. Project planning efforts with
partners have allowed the WRIA to project out-year
project funding needs which provides time to antic-
ipate funding shortfalls and seek outside support.
This long-term planning effort also allows sponsors
to align salmon projects with other jurisdictional
priorities, like those within their jurisdiction’s Capital
Improvement Plans and Transportation Improvement
Plans, as well as realistically phase large projects that
span multiple years.
Yearly, project sponsors assess the status of their
projects and funding needs and notify the WRIA 9
Habitat Project Coordinator of their intent to apply for
WRIA funding, and for how much. Projects undergo
a technical review by WRIA staff and the ITC. For
those projects competing for SRFB funding, projects
undergo an additional rigorous technical review by
the SRFB review panel.
AGENDA ITEM #6. e)
PAGE
164 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Salmon Recovery Funding
Salmon Recovery Funding Board (SRFB) funding
is administered through the Recreation and Conser-
vation Office (RCO). It is a fund source of combined
state salmon funds and federal Pacific Coast Salm-
on Recovery Funding (PCSRF). This annual fund
is allocated by a SRFB approved interim allocation
formula based in NOAA’s Chinook delisting criteria.
For several years, the Green/Duwamish watershed
has received $295,895 annually to support implemen-
tation of the Plan.
Puget Sound Acquisition and Restoration Fund
(PSAR) is co-managed by the Puget Sound Partner-
ship and the RCO. This is a Puget Sound specific fund
source appropriated through the State budget pro-
cess, within RCO’s budget request. In 2007, Governor
Christine Gregoire formed PSAR in direct response to
the growing need to restore habitat for salmon and
other wildlife within Puget Sound. The Green/Duwa-
mish has received just over $1.1 million biennially to
support implementation of the Plan. RCO serves as
the fiduciary for both PSAR and SRFB funding, so all
projects funded through SRFB and PSAR are re-
viewed and approved through the SRFB process.
King County Flood Control District Cooperative
Watershed Management Funds (CWM) are provid-
ed by the King County Flood Control district (KCFCD).
The KCFCD is a special purpose government creat-
ed to provide funding and policy oversight for flood
protection projects and programs in King County.
Funding for CWM is a small portion of the tax assess-
ment to support salmon recovery projects within the
four WRIAs in King County. In 2020, CWM funding
was doubled, and WRIA 9 now receives $3.63 million
annually to support high priority projects and pro-
grams. The FCD approves project lists annually.
Other Local, State and Federal Funding Sources –
In addition to these funding programs, sponsors are
encouraged to compete for other local, state and fed-
eral funds. It typically takes multiple funding sources
to implement projects due to project complexity and
cost. Many projects are initiated with and sustained
by local funding provided by the sponsoring juris-
diction. Other state and regional grant programs that
support salmon recovery include, but are not limited
to, the Estuary and Salmon Restoration Program
(ESRP), Floodplains by Design (FbD), Brian Abbott
Fish Barrier Removal Board (FBRB), Aquatic Lands
Enhancement Account (ALEA), and Washington
Wildlife and Recreation Program (WWRP). Addition-
ally, many of the projects within King County are
supported through the County’s Conservation Futures
Tax (CFT), a program passed by the Washington State
Legislature in the 1970s to ensure citizens have are
afforded the right to a healthy and pleasant environ-
ment. This fund specifically protects urban parks and
greenways, watersheds, working forests, and salmon
habitat as well as critical links connecting regional
trails and urban greenbelts.
WRIA 9 CWM Funding Allocation
High-Priority Capital Projects – CWM funding (>
65%) and all SRFB/PSAR capital funding. The WRIA
invests the majority of annual funding on high priority
capital projects that protect and restore critical hab-
itats. These projects are identified through planning
efforts like the Duwamish Blueprint, Middle Green
Blueprint, and the Lower Green River Corridor plan-
ning process. More recently, projects incorporated in
this Plan Update were solicited from partner organi-
zations.
Regreen the Green small grant program - Up to
$500,000 of CWM funding. This grant program orig-
inated in 2016 after the completion of the “Re-Green
the Green Revegetation Strategy” to support imple-
mentation of the priority sites identified in the plan.
It has served as a primary source of funding to those
focusing on revegetation efforts along critical areas in
the Green/Duwamish. Additionally, this program has
supported successful coalition building, landowner
outreach campaigns, and network development that
helps achieve broader Plan engagement goals.
Monitoring, Research and Adaptive Management
– Up to 10% of CWM funding. This funding is essential
to informing adaptive management and maximizing
return on investment with respect to salmon recovery.
This funding allocation also supports the Green River
smolt trap managed by Washington Department of
Fish and Wildlife.
Stewardship, Engagement and Learning – Up to
5% of CWM funding. This funding supports Stew-
ardship, Engagement and Outreach efforts designed
to increase awareness around salmon recovery and
promote positive behavior change.
AGENDA ITEM #6. e)
PAGE
165 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Outyear Project Planning (6-year HCPIP)
WRIA 9 maintains a Habitat Capital Project Imple-
mentation Plan (HCPIP) that identifies all projects
with expected funding needs for three biennium (6
years). While these numbers are estimates they pro-
vide a sense of the magnitude of funding needed per
year. This implementation plan supports staff in work-
ing with partners to properly sequence and support
projects throughout the project life cycle, and to seek
out additional funding to compliment WRIA directed
funds. In many cases, WRIA directed funding sources
are inadequate to support the full scope of a project
but enable project sponsors to leverage other local,
state and federal funds. The HCPIP will be updated
annually based on evolving project needs, and will be
published beinnially along with a call for projects.
To ensure projects acquire, restore, rehabilitate, or
create the type and amount of habitat that they was
described in the original project description for the
2020 Salmon Habitat Plan capital project solicitation
(or subsequent calls for projects), project sponsors
will be required present to the ITC or project work-
group (below) for at least one of the significant mile-
stones of the project design process.
This team will support ranking and tiering of any new
proposed large capital restoration projects and pro-
vide input on design for WRIA funded projects.
Performance Management
Projects receiving funding through grants directed by
WRIA 9 are often subject to various pressures from
other local, state, and regional funders, stakeholders,
and interested parties during project development. In
order to make sure projects acquire, restore, rehabil-
itate, or create the type and amount of habitat that
they described in the projects original description
for the Salmon Habitat Plan, project sponsors will be
required to present to the ITC or project workgroup
(below) for at least one of the significant milestones
of the project design process. For very large projects
that will likely seek PSAR Large Capital funding, or
large-scale complex projects with multiple objectives,
the WRIA may request sponsor design teams include
a WRIA technical representative to support WRIA 9
salmon recovery project priorities.
An ad hoc project workgroup will be established to
support elements of project development, made up
of three to five members of the ITC. This team will
rank and tier newly proposed large capital restoration
projects and provide input on design for WRIA-fund-
ed projects. The goal of this workgroup would be to
provide feedback that will maximize salmon benefits,
incorporate lessons learned from previous projects,
ensure projects meet the highest possible outcomes
for salmon, and help reduce project costs by address-
ing issues early in design.
It is anticipated that project sponsors will work with
the Habitat Project Coordinator to present to the
project workgroup or the ITC as follows, or if major
changes/updates were made to the design:
1. Alternatives analysis - Project Workgroup
2. 30% design - Full ITC
3. 90% design - Full ITC
Project sponsors are expected to maintain fidelity to
the original habitat deliverables. Naturally projects
will evolve as more is learned about project design
and feasibility. The project sponsor is responsible for
alerting the WRIA if substantive modifications to the
original scope are required. Modifications to the scope
of the project may invoke a full project team review
to affirm the project tier and may require subsequent
approval from the ITC or WEF. Failure to notify the
WRIA of these changes, or use of funding outside of
the approved scope, could result in the withholding of
future funding or constitute a breach of contract.
AGENDA ITEM #6. e)
PAGE
166 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
PAGE
167 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Chapter 9:
Monitoring and Adaptive Management
Adaptive Management Framework
The 2005 Salmon Habitat Plan outlined a sci-
ence-based blueprint for prioritizing Chinook salmon
recovery efforts in the Green/Duwamish and Central
Puget Sound Watershed. This Plan Update reflects
an ongoing commitment to adaptive management to
ensure prioritization and sequencing of investments
reflect best available science and maximize benefits
to Chinook salmon, in terms of established viable
salmon population criteria. WRIA 9 convenes a regu-
lar Implementation and Technical Committee (ITC) to
oversee monitoring and adaptive management of the
Salmon Habitat Plan. The ITC informs monitoring pri-
orities, evaluates plan implementation and recovery
progress, and makes formal policy and funding rec-
ommendations to the Watershed Ecosystem Forum.
In 2020, WRIA 9 developed a Monitoring and Adap-
tive Management Plan (Appendix F) that outlines a
framework to:
• Prioritize research and monitoring investments to
address important data and knowledge gaps;
• Support status and trends monitoring to assess es-
tablished habitat-related recovery goals and viable
salmon population metrics;
• Promote collaboration among partners engaged in
research and monitoring within the watershed; and
• Guide adaptive management of the Salmon Habitat
Plan.
The WRIA 9 Monitoring and Adaptive Management
Plan (MAMP) outlines three categories of monitoring
intended to help evaluate and inform strategic
adaptation of recovery efforts (Figure 31). Each
category of monitoring is intended to answer under-
lying questions related to implementation progress,
effectiveness of actions, and overall impact on
Chinook recovery.
• Implementation Monitoring: Is the plan being
implemented as intended? Are we on track to meet
established habitat targets?
• Effectiveness Monitoring: Are habitat projects
functioning as expected? Are habitat status and
trends improving throughout the watershed?
• Validation Monitoring: Are salmon recovery
efforts benefiting the Green River Chinook salmon
population (i.e., VSP criteria)? Are the underlying
scientific assumptions of the plan accurate?
AGENDA ITEM #6. e)
Figure 31. Types of monitoring used to evaluate management strategies and adapt them as necessary.
Periodic assessment of these questions allows wa-
tershed partners to reassess plan implementation,
underlying recovery strategies, and/or reallocate
resources to maximize outcomes.
Implementation Monitoring
The Plan Update outlines numeric targets for key
habitats (Table 2, Chapter IV) linked to Chinook
salmon productivity and recovery. The targets are
intended to inform tracking and assessment of plan
implementation (i.e., projects constructed, specific
habitat gains, funding secured) in relation to estab-
lished long-term goals. Regular evaluation of imple-
mentation progress feeds into an adaptive manage-
ment decision framework (Figure 32). This framework
connects decision makers (i.e., Watershed Ecosystem
Forum) with important monitoring and research find-
ings, informing corrective actions to recovery strate-
gies when necessary.
Effectiveness Monitoring
Effectiveness monitoring is designed to assess if hab-
itat restoration projects are functioning as intended
and achieving physical and biological performance
standards. It includes both project-level and cumula-
tive habitat conditions. Capital habitat project imple-
mentation can take over a decade from conceptual
design to construction and costs millions of dollars.
Effectiveness monitoring is essential to ensure large
capital investments maximize benefits to salmon and
help identify potential design improvements and cost
efficiencies that can be adapted into future projects.
FUNDING
PROJECTS
PROGRAMS
PROJECT
Routine
– Physical
– Biological
Enhanced
CUMULATIVE
HABITAT CONDITIONS
GREEN POPULATION
ONGOING RESEARCH
& DATA GAPS
IMPEMENTATIONMONITORING EFFECTIVENESSMONITORING VALIDATIONMONITORING
COMPREHENSIVE
MONITORING PLAN
PAGE
168 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
Figure 32. Adaptive management decision framework.
Routine Monitoring
Routine project effectiveness monitoring evaluates
whether restored habitat is functioning the way it was
intended 3-10 years after the project is built. Project
specific monitoring plans should be designed to
assess project-specific goals and objectives. Project
sponsors are encouraged to begin development of
a monitoring plan at the project’s 30 percent design
milestone to allow for pre-project monitoring that can
be essential for verifying if future changes are due to
the project’s actions or natural variability. The MAMP
(Appendix F, Table 2) outlines routine physical and
biological monitoring recommendations based on
project type and subtype. The highlighted indicators
and metrics are designed to be relatively affordable
and consistent with regulatory permit monitoring
requirements. Project sponsors are generally expect-
ed to undertake routine monitoring for WRIA-funded
projects and report monitoring results to the ITC.
Enhanced Fish Monitoring
Enhanced monitoring is focused on understanding
how fish use a restoration project type. Unlike routine
project monitoring, which asks whether a certain
type of habitat was created and sustained, enhanced
monitoring is meant to evaluate how fish utilize the
habitat, and which restoration techniques convey
the most benefit. Projects should be evaluated with
a combination of Before-After Control-Impact or
reference/control sites research designs. Enhanced
fish monitoring is outside the scope of monitoring for
many project sponsors, nor is it frequently required
by regulatory agencies. Due to the costs associated
with enhanced monitoring, WRIA 9 intends to contin-
ue to financially support enhanced fish monitoring of
select projects. The MAMP (Appendix F, Table 3) also
outlines a prioritization framework (certainty of bene-
fit, process-based vs. engineered design, project type
frequency, and project cost) for WRIA-directed invest-
Step 1 Step 2 Step 3
WRIA 9 Adaptive Management Decision Framework
YES
NO YES
NO
DON’TKNOW
YES
NO
YES NO
FACTORS LIMITING
IMPLEMENTATION
ADAPTIVE
MANAGEMENT
RECOMMENDATIONS
· regulations· enforcement
· incentives
HABITAT LOSSES
OFFSET GAINS
· increase funding
FUNDING
INSUFFICIENT
· education/outreach
· incentives· acquisition
LACK OF OPPORTUNITIES
OR WILLINGNESS
· permitting· stang
· funding strategy
INSUFFICIENT
RESOURCES OR CAPACITY
· new metric· funding for monitoring
· Monitoring Plan adjustment
INFORMATION
GAPS
2010_10102L_w9_AM_flowchart.ai
Was the target
achieved?
Is the
work
complete
?
Does Strategic
Assessment
information change the
understanding of current context?
· fish use/habitat
· climate change
· water quality
Does the metric
need to be revisited to
evaluate 2030
target?
Implement
towards 2030
target
Protect
restored
habitat
Why?
No further
changes to
recommendations
PAGE
169 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
PAGE
170 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
ments to support enhanced monitoring. Monitoring
results should be reported to the ITC and inform
necessary maintenance and/or design modifications.
Cumulative Habitat Conditions
The Salmon Habitat Plan outlines a suite of projects,
programs, and policies intended to improve cumula-
tive habitat conditions across the watershed. Monitor-
ing status and trends in cumulative habitat conditions
allows us to assess the overall effectiveness of plan
implementation. It provides data on the net change
(improving, no change, degrading) in specific habitat
conditions over time that supports evaluation of hab-
itat restoration in relation to ongoing impacts to, and
loss of, habitat. This information will help identity any
gaps in the watershed’s approach to salmon recov-
ery and help (re)direct partner resources to potential
areas of concern. The MAMP (Appendix F, Table 4)
outlines priority habitat metrics recommended for
inclusion as part of a periodic cumulative habitat as-
sessment that are consistent with the WRIA 9 Status
and Trends Report 2005-2011 (ITC 2012). The WRIA 9
ITC should complete a cumulative habitat conditions
every five years.
Validation Monitoring
Viable Salmon Population Criteria
The National Oceanic and Atmospheric Administra-
tion (NOAA) developed the viable salmon population
(VSP) concept as a tool to assess the conservation
status of a population. NOAA defines a viable sal-
monid population as “an independent population
of any Pacific salmonid (genus Oncorhynchus) that
has a negligible risk of extinction due to threats from
demographic variation, local environmental varia-
tion, and genetic diversity changes over a 100- year
time frame” (McElhany, et al. 2000). Four parameters
are used to assess population status: abundance,
productivity; spatial structure, and diversity. These
measures of population status indicate whether the
cumulative recovery actions in our watershed are
improving the population’s overall viability and long-
term resilience.
The MAMP (Appendix F, Table 5) outlines recom-
mended metrics to evaluate VSP criteria that should
be monitored to assess the population status of the
Green River Chinook salmon population. Additional
NOAA-approved VSP targets are presented in Chap-
ter IV, Table 1. Although VSP parameters are not a
direct measurement of habitat conditions, habitat
availability, distribution and quality are inherently
reflected in VSP criteria. Tracking trends in the rec-
ommended VSP parameters allows resource man-
agers to evaluate how the population is responding
overtime to the net impact of conservation actions
and ongoing land use development activity in the
watershed. Over a long enough timeframe, results
can also inform recalibration of recovery strategies
if the conservation status of the population does not
improve or continues to decline.
The VSP concept – and conservation status of Green
River Chinook salmon – is influenced by a variety of
factors outside the scope of this plan (i.e., habitat).
The Puget Sound Salmon Recovery Plan emphasiz-
es that the conservation status of the Puget Sound
Chinook salmon Evolutionary Significant Unit is
ultimately linked to the “Four H’s” – habitat, hydro-
power, hatcheries and harvest. “Each of these factors
independently affects the (Shared Strategy Develop-
ment Committee 2007) status of salmon populations,
but they also have cumulative and synergistic effects
throughout the salmon life cycle. The achievement
of viability at the population and ESU level depends
on the concerted effort of all three factors working
together, not canceling each other out, and adjusting
over time as population conditions change” (Shared
Strategy Development Committee 2007).
Research and Data Gaps
The Salmon Habitat Plan Update reflects an update to
the scientific framework (i.e., Strategic Assessment) of
the original 2005 Plan. New scientific data improved
our understanding of the functional linkages between
environmental stressors, habitat, and population
productivity, abundance, diversity and spatial distri-
bution. This information is reflected in updates to the
WRIA 9 recovery strategies and embedded projects,
policies, and programs. Best avilable science is used
to recalibrate the magnitude and sequencing of our
strategic investments, maximizing the effectiveness of
our investments.
Numerous data gaps and uncertainties remain.
Ongoing investments in research and monitoring
will be essential to informing adaptive management
of recovery strategies and ensuring that plan imple-
AGENDA ITEM #6. e)
PAGE
171 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
mentation and associated funding decisions remain
science driven. Additional information on research
priorities and data gaps can be found in the Habitat
Use and Productivity, Temperature, Climate Change,
and Contaminant white papers in Appendices A-D.
These papers build on the existing 2004 WRIA 9 Chi-
nook Salmon Research Framework which utilized a
conceptual life-cycle model to organize and prioritize
research efforts to inform recovery planning.
AGENDA ITEM #6. e)
PAGE
172 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
AGENDA ITEM #6. e)
PAGE
173 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Chapter 10:
References
Anderson, J.H., and P.C. Topping. 2018. “Juvenile Life History Diversity and Freshwater Productivity of Chinook
Salmon in the Green River, Washington.” American Fisheries Society 38 (1): 180-193.
B.E. Feist, E.R. Buhle, D.H. Baldwin, J.A. Spromberg, S.E. Damm, J.W. Davis, N.L. Scholz. 2017. “Roads to ruin:
conservation threats to a sentinel species across an urban gradient.” Ecol. Appl. 27: 2382-2396.
Beamer, E.M., W.T. Zackey, D. Marks, D. Teel, D. Kuligowski, and R. Henderson. 2013. Juvenile Chinook salmon
rearing in small non-natal streams draining into the Whidbey Basin. LaConner, WA: Skagit River System
Cooperative.
Campbell, L., A. Claiborne, N. Overman, and J. Anderson. 2019. Investigating juvenile life history of adult Green
River fall Chinook salmon using otolith chemistry. Final Report (Draft), Washington Department of Fish
and Wildlife.
Campbell, L.A., and A.M. Claiborne. 2017. Successful juvenile life history strategies in returning adult Chinook
from five Puget Sound populations. Salish Sea Marine Survival Project - 2017 Annual Report, Washington
Department of Fish and Wildlife.
Colton, J. 2018. An evaluation of potential impacts of chemical contaminants to Chinook salmon in the Green
-Duwamish Watershed. Technical Briefing, WRIA 9.
DeGasperi, C.L. 2017. Green-Duwamish River 2015 temperature data compilation and analysis. King County Water
and Land Resources Division.
Dethier, M.N., W.W. Raymond, A.N. McBride, J.D. Toft, J.R. Cordell, A.S. Ogston, S.M. Heerhartz, and and H.D. Berry.
2016. “Multiscale impacts of armoring on Salish Sea shorelines: Evidence for cumulative and threshold
effects.” Estuarine, Coastal and Shelf Science 175: 106-117.
AGENDA ITEM #6. e)
PAGE
174 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Dunagan, C. 2019. “Third Biennial Science symposium - Summary.” University of Washington.
Eaton, J.G., R.M. Scheller. 1996. “Effects of climate warming on fish thermal habitat in streams of the United
States.” Limnol Oceanogr 41: 109-1115.
Engel, J., K. Higgin, and E. Ostergaard. 2017. WRIA 9 Climate Change Impacts. WRIA 9 Watershed Ecosystem
Forum.
EPA. 2008. Aquatic life criteria for contamnants of emerging concern: General challenges and recommendations.
Draft White Paper, Prepared by the OW/ORD Emerging Contaminants Workgroup .
Hatchery Scientific Review Group (HSRG). 2004. Hatchery Reform: Principles and Recommendations of the
HSRG. Seattle, WA: Long Live the Kings.
Henning, J. 2004. An evaluation of fish and amphibian use of restored and natural floodplain wetlands. Prepared
by Washington Department of Fish and Wildlife for Environmental Protection Agency, Region 10.
Higgins, Kollin. 2017. “A synthesis of changes in our knowledge of Chinook salmon producitvity and habitat uses
in WRIA 9 (2004-2016).”
J.P. Meador, A. Yeh, E.P. Gallagher. 2018. “Adverse metabolic effects in fish exposed to contaminants of emerging
concern in the field and laboratory.” Environ Pollut. 236: 850-861.
Jeffres, C.A., J.J. Opperman, and P.B. Moyle. 2008. “Ephemeral floodplain habitats provide best growth conditions
for juvenile Chinook salmon in a California River.” Environmental Biology of Fishes 83: 449-458.
Johnson, L.L., G.M. Ylitalo, M.R. Arkoosh, A.N. Kagley, C. Stafford, J.L. Bolton, J. Buzitis, B.F. Anulacion, and T.K.
Collier, 2007. 2007. “Contaminant exposure in outmigrant juvenile salmon from Pacific Northwest estuaries of
the United States.” Environ. Monit. Assess 124: 167-194.
K.T. Peter, Z. Tian, C. Wu, P. Lin, S. White, B. Du, J.K. McIntyre, N.L. Scholz, E.P. Kolodziej. 2018. “Using High-Reso-
lution Mass Spectrometry to Identify Organic Contaminants Linked to Urban Stormwater Mortality Syndrome in
Coho Salmon.” Environ. Sci. Technol. 52 (18): 10317-10327.
King County. 2014. Development of a Stormwater Retrofit Plan for Water Resources Inventory Area 9: Compre-
hensive needs assessment and extrapolation to Puget Sound. Seattle, WA: Prepared by Jim Simmonds and Olivia
Wright, Water and Land Resources Division.
King County. 2010. Green River external advisory panel report. . Seattle, WA: Prepared by Tetra Tech.
King County. 2019. Juvenile Chinook Use of Non-natal Tributaries in the Lower Green River. Seattle, Washington:
Prepared by Chris Gregersen, Water and Land Division.
King County. 2006. The 2006 Annual Growth Report. King County, Washington.
King County. 2019. WRIA 9 Marine Shoreline Monitoring and Compliance Project Phase 2 Final Report. Prepared
by Kollin Higgins, Water and Land Resources Division.
King County. 2019. WRIA 9 marine shoreline monitoring and compliance project phase 2 final report. Seattle, WA:
Prepared by Kollin HIggins, King County Water and Land Resources Dvision, Science and Technical Support
Section.
AGENDA ITEM #6. e)
PAGE
175 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
Konrad, C., H. Berge, R. Fuerstenberg, K. Steff, T. Olsen, and J. Guyenet. 2011. “Channel dynamicsin the MIddle
Green River, Washington, from 1936-2002.” Northwest Science 85: 1-14.
Kubo, J. 2017. Green River temperature and salmon. Technical Briefing, WRIA 9.
Lestelle, L.C., W.E. McConnaha, G. Blair, and B. Watson. 2005. Chinook slamon use of floodplain, secondary chan-
nel, and non-natal tributaries in rivers of western North America. Report prepared for the Mid-Wilamette Valley
Council of Governments, U.S. Army Corps of Engineers, and Oregon Department of Fish and Widlife.
Lundin, J.I., J.A. Spromberg, J.C. Jorgensen, J.M. Myers, P.M., Zabel, R.W. Chittaro, and et al. 2019. “Legacy habitat
contamination as a limiting factor for Chinook salmon recovery in the Willamette Basin, Oregon, USA.” PLoS
ONE 14 (3): e0214399. https://doi.org/10.1371/journal.pone.0214399.
Mauger, G.S, J.H. Casola, H.A Morgan, R.L. Strauch, B. Jones, T.M.B. Isaksen, L.W. Binder, M.B. Krosby, and A.K.
Snover. 2015. State of knowledge: Climate change in Puget Sound, Report prepared for the Puget Sound PArtner-
ship and the National Oceanic and Atmospheric Adminstration. Seattle: University of Washington.
Mauger, G.S. 2016. “Climate Change and Salmon Habitat – Building Resiliency.” Presentation to the WRIA 9 Imple-
mentation Technical Committee.
McElhany, P, M.H. Rucklelshaus, M.J. Ford, T.C. Wainwright, and E.P. and Bjorkstedt. 2000. Viable Salmonid Pop-
ulations and the Recovery of Evolutionary Significant Units. NOAA Technical Memorandum NMFS-NWFSC-42,
Seattle: NOAA, NMFS.
Meador, J. 2014. “Do chemically contaminated river estuaries in Puget Sound (Washington, USA) affect the
survival rate of hatchery-reared Chinook salmon?” Canadian Journal of Fisheries and Aquatic Sciences 71 (1):
162-180.
Munsch, S.H., J.R. Cordell, and J.D. Toft. 2016. “Fine scale habitat use and behavior of a nearshore fish communi-
ty: nursery functions, predation avoidance, and spatiotemporal habitat partitioning.” Marine Ecology Progress
Series 557: 1-15.
N.L. Scholz, M.S. Myers, S.G. McCarthy, J.S. Labenia, J.K. McIntyre, G.M. Ylitalo, L.D. Rhodes, C.A. Laetz, C.M.
Stehr, B.L. French, B. McMillan, D. Wilson, L. Reed, K.D. Lynch, S. Damm, J.W. Davis, T.K. Collier. 2011. “Recurrent
die-offs of adult coho salmon returning to spawn in Puget Sound lowland urban streams.” PLoS One 6: e29013.
Nelson, T., H. Berge, G. Ruggerone, and J. Cordell. 2013. DRAFT Juvenile Chinook migration, growth, and habitat
use in the Lower Green and Duwamish Rivers and Elliott Bay nearshore. Seattle: King County Water and Land
Resources Division.
NOAA. 2019. Biological Opinion on Howard Hanson Dam, Operations, and Maintenance, Green River (HUC
17110013) King County, Washington. Portland, OR: NOAA National Marine Fisheries Service.
O’Neal, K. 2002. Effects of global warming on trout and salmon in U.S. streams. Washington, D.C.: Defenders of
Wildlife.
O’Neil, S.M., A.J. Carey, J.A. Lanksbury, L.A. Niewolny, G. Ylitalo, L. Johnson, and J.E. West. 2015. Toxic contami-
nants in juvenile Chinook salmon migrating through estuary, nearshore and offshore habitats of Puget Sound.
Washington Department of Fish and Wildlife.
Paul, M.J., and J.L. Meyer. 2001. “The ecology of urban streams.” Annual Review of Ecology and Systematics 32:
333-365.
AGENDA ITEM #6. e)
PAGE
176 Green-Duwamish and Central Puget Sound Watershed Salmon Habitat 2021 Update
R2 Resource Consultants. 2013. “Juvenile salmonid use of lateral habitats in the MIddle Green River, Washington”.
A draft data report for the U.S. Army Corps of Engineers, Seattle District.”
R2 Resource Consultants. 2014. “Zone 1 Nourishment Gravel Stability Green River, Washington 2011/12 monitoring
results.”
Reinelt, L. 2014. “Green River System-Wide Improvement Framework, Green River, Washington.” King County
Water and Land Resources, October 23.
Rice, C.A. 2006. “shoreline modification in northern Puget Sound: beach microclimate and embryo survival in
summer spawning surf smelt (Hypomesus pretiosus).” Estuaries and Coasts 29 (1): 63-71.
Scholz, Julann A. Spromberg David H. Baldwin Steven E. Damm Jenifer K. McIntyre Michael Huff Catherine A.
Sloan Bernadita F. Anulacion Jay W. Davis Nathaniel L. 2016. “Coho salmon spawner mortality in western
US urban watersheds: bioinfiltration prevents lethal storm water impacts.” Journal of Applied Ecology 53:
398-407.
Scholz, N. 2019. “A cross-species evaluation of the Pacific salmon urban stream mortality syndrome.” WA Storm-
water Center 2019 Annual Research Review.
Scrivener, J.C., T.G. Brown, and B.C. Andersen. 1994. “Juvenile Chinook salmon (Oncorhynchus tshawytscha)
utilization of Hawks Creek, a small and nonnatal tributary of the upper Fraser River.” Canadian Journal of
Fisheries and Aquatic Sciences 51 (5): 1139-1146.
Sommer, T.R., M.L. Nobriga, W.C. Harrel, W Batham, and W.J. Kimmerer. 2001. “FLoodplain rearing of juvenile
Chinook salmon: evidence of enhanced growth and survival.” Canadian Journal of FIsheries and Aquatic
Sciences 58: 325-333.
Tabor, R.A., and Z.J. Moore. 2018. Restoration monitoring of Mapes and Taylor Creeks, two nonnatal Lake Washington
tributaries for juvenile Chinook salmon. Lacey, WA: U.S. Fish and Wildlife.
Tabor, R.A., J.A. Scheurer, H.A. Gearns, and M.M. Charles. 2011. “Use of nonnatal tributaries for lake-rearing juvenile
Chinook salmon in the Lake Washington basin, Washington.” Northwest Science 85 (3): 476-491.
Toft, J.D., A.S. Ogston, S.M. Heerhartz, J.R. Cordell, and E.E. Flemer. 2013. “Ecological responses and physical sta-
bility of habitat enhancements along an urban armored shoreline.” Ecological Engineering 57: 97-108.
Toft, J.D., J.R. Cordell, C.A., Simenstad, and L.A. Stamatiou. 2007. “Fish distribution, abundance, and behavior along
city shoreline types in Puget Sound.” North American Journal of FIsheries Management 27: 465-480.
U.S. Census Bureau. 2019. Quick Facts: King County, Washington. July 1.
https://www.census.gov/quickfacts/fact/table/kingcountywashington,US.
Varanasi, U., C Edmundo, T.H. Arkoosh, D.A Misitano, D.W. Brown, S.L. Chan, T.K. Collier, B.B. McCain, and J.E. Stein.
1993. Contaminant Exposure and Associated Biological Effects in Juvenile Chinook Salmon (Oncorhyn-
chus tshawytscha) from Urban and Nonurban Estuaries of Puget Sound. NOAA Technical Memorandum
NMFS-NWFSC-8, NOAA: National Marine Fisheries Service.
WA Dept. of Commerce. 2017. Puget Sound Mapping Project. Olympia, 11 01. https://www.commerce.wa.gov/serv-
ing-communities/growth-management/puget-sound-mapping-project/.
WRIA 9 . 2012. WRIA 9 status and trends monitoring report: 2005-2010. Prepared for the WRIA 9 Watershed Eco-
system Forum.
AGENDA ITEM #6. e)
Published by the
Green/Duwamish and Central Puget Sound Watershed
Water Resource Inventory Area 9 (WRIA 9)
Salmon Habitat Plan 2021 Update
MAKING OUR WATERSHED FIT FOR A KING
City of Algona
City of Auburn
City of Black Diamond
City of Burien
City of Covington
City of Des Moines
City of Enumclaw
City of Federal Way
City of Kent
King County
City of Maple Valley
City of Normandy Park
City of Renton
City of SeaTac
City of Seattle
City of Tacoma
City of Tukwila
Approved by the WRIA 9 Watershed Ecosystem Forum
on February 11, 2021
KCIT-DCE file: 2102_10102L_W9SHP-REPORT.indd
ROGER TABOR
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AGENDA ITEM #6. e)
AB - 2899
City Council Regular Meeting - 19 Jul 2021
SUBJECT/TITLE: Agreement for Professional Services with RH2 Engineering, Inc. for
Design of the West Hill Booster Pump Station Improvements Project,
WTR-27-04184
RECOMMENDED ACTION: Refer to Utilities Committee
DEPARTMENT: Public Works Utility Systems Division
STAFF CONTACT: Ian Fitz-James, Civil Engineer III
EXT.: 7208
FISCAL IMPACT SUMMARY:
Funding for this agreement in the amount of $216,343 is available from the approved 2021 Water Utility
Capital Improvement Program budget for the Water Pump Stations Rehabilitation project (425.455530).
There is sufficient funding in the budget to cover the agreement. The 2021 project budget with the second
quarter adjustment is $400,000, which will cover the cost of design, staff time for project management, and
contingencies.
SUMMARY OF ACTION:
The West Hill Booster Pump Station located on West Perimeter Road at the Renton Municipal Airport was
constructed in 1985 to serve the West Hill 495 Operational Area and a portion of Skyway Water and Sewer
District’s service area per an existing agreement between the city and the district. The pump station has one
1,000 gallons per minute (gpm) diesel driven fire pump, two 600 gpm domestic pumps, and no backup power.
Based on the analyses performed as part of the 2019 Water System Plan Update, the West Hill 495
Operational Area has been identified as having a storage deficit under future demand projections for 2029 and
2039. A preliminary design report was completed in 2018 and the recommendations included replacement of
the existing pumps, installation of an emergency backup power generator, and upgrades to the existing
mechanical, electrical, and control systems to bring the facility up to current codes and city standards.
The city previously selected RH2 Engineering, Inc. as the engineering consultant for the Project through a
request for a statement of qualifications and proposal issued in May 2016. An agreement for Phase I of the
project was executed on September 19, 2016 (CAG-16-153) for an initial study/scoping. An agreement for
Phase II of the project was executed on January 24, 2018 (CAG-18-011) for preliminary design.
The proposed agreement is for Phase III of the project, design and services during bidding. Under this
agreement, the consultant will perform the following:
• Update the hydraulic calculations to verify pumping capacity to meet projected water demand in the
West Hill operational area.
• Provide support services for pre-application meeting(s), environmental review, and building permit
application.
• Develop 60% design plans, specifications, and construction cost estimate for the city’s review.
AGENDA ITEM #6. f)
• Develop 90% design plans, specifications, and cost estimate and attend review meeting(s) with city
staff.
• Develop 100% bid ready plans and specifications and assist the city with response to the bidders’
inquiries during the bidding period.
EXHIBITS:
A. Agreement
B. Vicinity Map
STAFF RECOMMENDATION:
Authorize the Mayor and City Clerk to execute the agreement with RH2 Engineering, Inc. in the amount of
$216,343 for design and services during bidding for the West Hill Booster Pump Station Improvements project.
AGENDA ITEM #6. f)
AGREEMENT FOR WEST HILL BOOSTER PUMP STATION
IMPROVEMENTS PROJECT (WTR #27-04184)
THIS AGREEMENT, dated for reference purposes only as , is by and between the
City of Renton (the “City”), a Washington municipal corporation, and RH2 Engineering, Inc.
(“Consultant”), a Washington corporation. The City and the Consultant are referred to collectively
in this Agreement as the “Parties.” Once fully executed by the Parties, this Agreement is effective
as of the last date signed by both parties.
1. Scope of Work: Consultant agrees to provide consulting and design and bidding services
as specified in Exhibit A, which is attached and incorporated herein and may hereinafter
be referred to as the “Work.”
2. Changes in Scope of Work: The City, without invalidating this Agreement, may order
changes to the Work consisting of additions, deletions or modifications. Any such changes
to the Work shall be ordered by the City in writing and the Compensation shall be
equitably adjusted consistent with the rates set forth in Exhibit C or as otherwise mutually
agreed by the Parties.
3. Time of Performance: Consultant shall commence performance of the Agreement
pursuant to the schedule(s) set forth in Exhibit B. All Work shall be performed by no later
than May 31, 2022.
4. Compensation:
A. Amount. Total compensation to Consultant for Work provided pursuant to this
Agreement shall not exceed $216,343, plus any applicable state and local sales taxes.
Compensation shall be paid based upon Work actually performed according to the
rate(s) or amounts specified in Exhibit C. The Consultant agrees that any hourly or flat
rate charged by it for its Work shall remain locked at the negotiated rate(s) unless
otherwise agreed to in writing or provided in Exhibit C. Except as specifically provided
herein, the Consultant shall be solely responsible for payment of any taxes imposed
as a result of the performance and payment of this Agreement.
B. Method of Payment. On a monthly or no less than quarterly basis during any quarter
in which Work is performed, the Consultant shall submit a voucher or invoice in a form
specified by the City, including a description of what Work has been performed, the
AGENDA ITEM #6. f)
PAGE 2 OF 10
name of the personnel performing such Work, and any hourly labor charge rate for
such personnel. The Consultant shall also submit a final bill upon completion of all
Work. Payment shall be made by the City for Work performed within thirty (30)
calendar days after receipt and approval by the appropriate City representative of the
voucher or invoice. If the Consultant’s performance does not meet the requirements
of this Agreement, the Consultant will correct or modify its performance to comply
with the Agreement. The City may withhold payment for work that does not meet the
requirements of this Agreement.
C. Effect of Payment. Payment for any part of the Work shall not constitute a waiver by
the City of any remedies it may have against the Consultant for failure of the
Consultant to perform the Work or for any breach of this Agreement by the
Consultant.
D. Non-Appropriation of Funds. If sufficient funds are not appropriated or allocated for
payment under this Agreement for any future fiscal period, the City shall not be
obligated to make payments for Work or amounts incurred after the end of the
current fiscal period, and this Agreement will terminate upon the completion of all
remaining Work for which funds are allocated. No penalty or expense shall accrue to
the City in the event this provision applies.
5. Termination:
A. The City reserves the right to terminate this Agreement at any time, with or without
cause by giving ten (10) calendar days’ notice to the Consultant in writing. In the event
of such termination or suspension, all finished or unfinished documents, data, studies,
worksheets, models and reports, or other material prepared by the Consultant
pursuant to this Agreement shall be submitted to the City, if any are required as part
of the Work.
B. In the event this Agreement is terminated by the City, the Consultant shall be entitled
to payment for all hours worked to the effective date of termination, less all payments
previously made. If the Agreement is terminated by the City after partial performance
of Work for which the agreed compensation is a fixed fee, the City shall pay the
Consultant an equitable share of the fixed fee. This provision shall not prevent the
City from seeking any legal remedies it may have for the violation or nonperformance
of any of the provisions of this Agreement and such charges due to the City shall be
deducted from the final payment due the Consultant. No payment shall be made by
the City for any expenses incurred or work done following the effective date of
termination unless authorized in advance in writing by the City.
6. Warranties And Right To Use Work Product: Consultant represents and warrants that
Consultant will perform all Work identified in this Agreement in a professional and
AGENDA ITEM #6. f)
PAGE 3 OF 10
workmanlike manner and in accordance with all reasonable and professional standards
and laws. Compliance with professional standards includes, as applicable, performing the
Work in compliance with applicable City standards or guidelines (e.g. design criteria and
Standard Plans for Road, Bridge and Municipal Construction). Professional engineers shall
certify engineering plans, specifications, plats, and reports, as applicable, pursuant to
RCW 18.43.070. Consultant further represents and warrants that all final work product
created for and delivered to the City pursuant to this Agreement shall be the original work
of the Consultant and free from any intellectual property encumbrance which would
restrict the City from using the work product. Consultant grants to the City a non-
exclusive, perpetual right and license to use, reproduce, distribute, adapt, modify, and
display all final work product produced pursuant to this Agreement. The City’s or other’s
adaptation, modification or use of the final work products other than for the purposes of
this Agreement shall be without liability to the Consultant. The provisions of this section
shall survive the expiration or termination of this Agreement.
7. Record Maintenance: The Consultant shall maintain accounts and records, which
properly reflect all direct and indirect costs expended and Work provided in the
performance of this Agreement and retain such records for as long as may be required by
applicable Washington State records retention laws, but in any event no less than six
years after the termination of this Agreement. The Consultant agrees to provide access
to and copies of any records related to this Agreement as required by the City to audit
expenditures and charges and/or to comply with the Washington State Public Records Act
(Chapter 42.56 RCW). The provisions of this section shall survive the expiration or
termination of this Agreement.
8. Public Records Compliance: To the full extent the City determines necessary to comply
with the Washington State Public Records Act, Consultant shall make a due diligent search
of all records in its possession or control relating to this Agreement and the Work,
including, but not limited to, e-mail, correspondence, notes, saved telephone messages,
recordings, photos, or drawings and provide them to the City for production. In the event
Consultant believes said records need to be protected from disclosure, it may, at
Consultant’s own expense, seek judicial protection. Consultant shall indemnify, defend,
and hold harmless the City for all costs, including attorneys’ fees, attendant to any claim
or litigation related to a Public Records Act request for which Consultant has responsive
records and for which Consultant has withheld records or information contained therein,
or not provided them to the City in a timely manner. Consultant shall produce for
distribution any and all records responsive to the Public Records Act request in a timely
manner, unless those records are protected by court order. The provisions of this section
shall survive the expiration or termination of this Agreement.
9. Independent Contractor Relationship:
AGENDA ITEM #6. f)
PAGE 4 OF 10
A. The Consultant is retained by the City only for the purposes and to the extent set forth
in this Agreement. The nature of the relationship between the Consultant and the City
during the period of the Work shall be that of an independent contractor, not
employee. The Consultant, not the City, shall have the power to control and direct the
details, manner or means of Work. Specifically, but not by means of limitation, the
Consultant shall have no obligation to work any particular hours or particular
schedule, unless otherwise indicated in the Scope of Work or where scheduling of
attendance or performance is mutually arranged due to the nature of the Work.
Consultant shall retain the right to designate the means of performing the Work
covered by this agreement, and the Consultant shall be entitled to employ other
workers at such compensation and such other conditions as it may deem proper,
provided, however, that any contract so made by the Consultant is to be paid by it
alone, and that employing such workers, it is acting individually and not as an agent
for the City.
B. The City shall not be responsible for withholding or otherwise deducting federal
income tax or Social Security or contributing to the State Industrial Insurance
Program, or otherwise assuming the duties of an employer with respect to Consultant
or any employee of the Consultant.
C. If the Consultant is a sole proprietorship or if this Agreement is with an individual, the
Consultant agrees to notify the City and complete any required form if the Consultant
retired under a State of Washington retirement system and agrees to indemnify any
losses the City may sustain through the Consultant’s failure to do so.
10. Hold Harmless: The Consultant agrees to release, indemnify, defend, and hold harmless
the City, elected officials, employees, officers, representatives, and volunteers from any
and all claims, demands, actions, suits, causes of action, arbitrations, mediations,
proceedings, judgments, awards, injuries, damages, liabilities, taxes, losses, fines, fees,
penalties, expenses, attorney’s or attorneys’ fees, costs, and/or litigation expenses to or
by any and all persons or entities, arising from, resulting from, or related to the negligent
acts, errors or omissions of the Consultant in its performance of this Agreement or a
breach of this Agreement by Consultant, except for that portion of the claims caused by
the City’s sole negligence.
Should a court of competent jurisdiction determine that this agreement is subject to RCW
4.24.115, (Validity of agreement to indemnify against liability for negligence relative to
construction, alteration, improvement, etc., of structure or improvement attached to real
estate…) then, in the event of liability for damages arising out of bodily injury to persons
or damages to property caused by or resulting from the concurrent negligence of the
Consultant and the City, its officers, officials, employees and volunteers, Consultant’s
liability shall be only to the extent of Consultant’s negligence.
AGENDA ITEM #6. f)
PAGE 5 OF 10
It is further specifically and expressly understood that the indemnification provided in
this Agreement constitute Consultant’s waiver of immunity under the Industrial
Insurance Act, RCW Title 51, solely for the purposes of this indemnification. The Parties
have mutually negotiated and agreed to this waiver. The provisions of this section shall
survive the expiration or termination of this Agreement.
11. Gifts and Conflicts: The City’s Code of Ethics and Washington State law prohibit City
employees from soliciting, accepting, or receiving any gift, gratuity or favor from any
person, firm or corporation involved in a contract or transaction. To ensure compliance
with the City’s Code of Ethics and state law, the Consultant shall not give a gift of any kind
to City employees or officials. Consultant also confirms that Consultant does not have a
business interest or a close family relationship with any City officer or employee who was,
is, or will be involved in selecting the Consultant, negotiating or administering this
Agreement, or evaluating the Consultant’s performance of the Work.
12. City of Renton Business License: The Consultant shall obtain a City of Renton Business
License prior to performing any Work and maintain the business license in good standing
throughout the term of this agreement with the City.
Information regarding acquiring a city business license can be found at:
https://www.rentonwa.gov/Tax
Information regarding State business licensing requirements can be found at:
http://dor.wa.gov/doing-business/register-my-business
13. Insurance: Consultant shall secure and maintain:
A. Commercial general liability insurance in the minimum amounts of $1,000,000 for
each occurrence/$2,000,000 aggregate for the Term of this Agreement.
B. In the event that Work delivered pursuant to this Agreement either directly or
indirectly involve or require Professional Services, Professional Liability, Errors and
Omissions coverage shall be provided with minimum limits of $1,000,000 per
occurrence. "Professional Services", for the purpose of this section, shall mean any
Work provided by a licensed professional or Work that requires a professional
standard of care.
C. Workers’ compensation coverage, as required by the Industrial Insurance laws of the
State of Washington, shall also be secured.
D. Commercial Automobile Liability for owned, leased, hired or non-owned, leased, hired
or non-owned, with minimum limits of $1,000,000 per occurrence combined single
AGENDA ITEM #6. f)
PAGE 6 OF 10
limit, if there will be any use of Consultant’s vehicles on the City’s Premises by or on
behalf of the City, beyond normal commutes.
E. Consultant shall name the City as an Additional Insured on its commercial general
liability policy on a non-contributory primary basis. The City’s insurance policies shall
not be a source for payment of any Consultant liability, nor shall the maintenance of
any insurance required by this Agreement be construed to limit the liability of
Consultant to the coverage provided by such insurance or otherwise limit the City’s
recourse to any remedy available at law or in equity.
F. Subject to the City’s review and acceptance, a certificate of insurance showing the
proper endorsements, shall be delivered to the City before performing the Work.
G. Consultant shall provide the City with written notice of any policy cancellation, within
two (2) business days of their receipt of such notice.
14. Delays: Consultant is not responsible for delays caused by factors beyond the
Consultant’s reasonable control. When such delays beyond the Consultant’s reasonable
control occur, the City agrees the Consultant is not responsible for damages, nor shall the
Consultant be deemed to be in default of the Agreement.
15. Successors and Assigns: Neither the City nor the Consultant shall assign, transfer or
encumber any rights, duties or interests accruing from this Agreement without the
written consent of the other.
16. Notices: Any notice required under this Agreement will be in writing, addressed to the
appropriate party at the address which appears below (as modified in writing from time
to time by such party), and given personally, by registered or certified mail, return receipt
requested, by facsimile or by nationally recognized overnight courier service. Time period
for notices shall be deemed to have commenced upon the date of receipt, EXCEPT
facsimile delivery will be deemed to have commenced on the first business day following
transmission. Email and telephone may be used for purposes of administering the
Agreement, but should not be used to give any formal notice required by the Agreement.
CITY OF RENTON
Ian Fitz-James, Water Utility
1055 South Grady Way
Renton, WA 98057
Phone: (425) 430-7208
ifitzjames@rentonwa.gov
Fax: (425) 430-7241
CONSULTANT
Chris Roberts
22722 29th Dr. Suite 210
Bothell, WA 98021
Phone: (425) 951-5358
croberts@rh2.com
Fax: (425) 951-5401
AGENDA ITEM #6. f)
PAGE 7 OF 10
17. Discrimination Prohibited: Except to the extent permitted by a bona fide occupational
qualification, the Consultant agrees as follows:
A. Consultant, and Consultant’s agents, employees, representatives, and volunteers
with regard to the Work performed or to be performed under this Agreement, shall
not discriminate on the basis of race, color, sex, religion, nationality, creed, marital
status, sexual orientation or preference, age (except minimum age and retirement
provisions), honorably discharged veteran or military status, or the presence of any
sensory, mental or physical handicap, unless based upon a bona fide occupational
qualification in relationship to hiring and employment, in employment or application
for employment, the administration of the delivery of Work or any other benefits
under this Agreement, or procurement of materials or supplies.
B. The Consultant will take affirmative action to insure that applicants are employed and
that employees are treated during employment without regard to their race, creed,
color, national origin, sex, age, sexual orientation, physical, sensory or mental
handicaps, or marital status. Such action shall include, but not be limited to the
following employment, upgrading, demotion or transfer, recruitment or recruitment
advertising, layoff or termination, rates of pay or other forms of compensation and
selection for training.
C. If the Consultant fails to comply with any of this Agreement’s non-discrimination
provisions, the City shall have the right, at its option, to cancel the Agreement in
whole or in part.
D. The Consultant is responsible to be aware of and in compliance with all federal, state
and local laws and regulations that may affect the satisfactory completion of the
project, which includes but is not limited to fair labor laws, worker's compensation,
and Title VI of the Federal Civil Rights Act of 1964, and will comply with City of Renton
Council Resolution Number 4085.
18. Miscellaneous: The parties hereby acknowledge:
A. The City is not responsible to train or provide training for Consultant.
B. Consultant will not be reimbursed for job related expenses except to the extent
specifically agreed within the attached exhibits.
C. Consultant shall furnish all tools and/or materials necessary to perform the Work
except to the extent specifically agreed within the attached exhibits.
D. In the event special training, licensing, or certification is required for Consultant to
provide Work he/she will acquire or maintain such at his/her own expense and, if
AGENDA ITEM #6. f)
PAGE 8 OF 10
Consultant employs, sub-contracts, or otherwise assigns the responsibility to perform
the Work, said employee/sub-contractor/assignee will acquire and or maintain such
training, licensing, or certification.
E. This is a non-exclusive agreement and Consultant is free to provide his/her Work to
other entities, so long as there is no interruption or interference with the provision of
Work called for in this Agreement.
F. Consultant is responsible for his/her own insurance, including, but not limited to
health insurance.
G. Consultant is responsible for his/her own Worker’s Compensation coverage as well as
that for any persons employed by the Consultant.
19. Other Provisions:
A. Approval Authority. Each individual executing this Agreement on behalf of the City
and Consultant represents and warrants that such individuals are duly authorized to
execute and deliver this Agreement on behalf of the City or Consultant.
B. General Administration and Management. The City’s project manager is Ian Fitz-
James, Water Utility Engineer. In providing Work, Consultant shall coordinate with the
City’s contract manager or his/her designee.
C. Amendment and Modification. This Agreement may be amended only by an
instrument in writing, duly executed by both Parties.
D. Conflicts. In the event of any inconsistencies between Consultant proposals and this
Agreement, the terms of this Agreement shall prevail. Any exhibits/attachments to
this Agreement are incorporated by reference only to the extent of the purpose for
which they are referenced within this Agreement. To the extent a Consultant
prepared exhibit conflicts with the terms in the body of this Agreement or contains
terms that are extraneous to the purpose for which it is referenced, the terms in the
body of this Agreement shall prevail and the extraneous terms shall not be
incorporated herein.
E. Governing Law. This Agreement shall be made in and shall be governed by and
interpreted in accordance with the laws of the State of Washington and the City of
Renton. Consultant and all of the Consultant’s employees shall perform the Work in
accordance with all applicable federal, state, county and city laws, codes and
ordinances.
F. Joint Drafting Effort. This Agreement shall be considered for all purposes as prepared
by the joint efforts of the Parties and shall not be construed against one party or the
AGENDA ITEM #6. f)
PAGE 9 OF 10
other as a result of the preparation, substitution, submission or other event of
negotiation, drafting or execution.
G. Jurisdiction and Venue. Any lawsuit or legal action brought by any party to enforce or
interpret this Agreement or any of its terms or covenants shall be brought in the King
County Superior Court for the State of Washington at the Maleng Regional Justice
Center in Kent, King County, Washington, or its replacement or successor. Consultant
hereby expressly consents to the personal and exclusive jurisdiction and venue of
such court even if Consultant is a foreign corporation not registered with the State of
Washington.
H. Severability. A court of competent jurisdiction’s determination that any provision or
part of this Agreement is illegal or unenforceable shall not cancel or invalidate the
remainder of this Agreement, which shall remain in full force and effect.
I. Sole and Entire Agreement. This Agreement contains the entire agreement of the
Parties and any representations or understandings, whether oral or written, not
incorporated are excluded.
J. Time is of the Essence. Time is of the essence of this Agreement and each and all of
its provisions in which performance is a factor. Adherence to completion dates set
forth in the description of the Work is essential to the Consultant’s performance of
this Agreement.
K. Third-Party Beneficiaries. Nothing in this Agreement is intended to, nor shall be
construed to give any rights or benefits in the Agreement to anyone other than the
Parties, and all duties and responsibilities undertaken pursuant to this Agreement will
be for the sole and exclusive benefit of the Parties and no one else.
L. Binding Effect. The Parties each bind themselves, their partners, successors, assigns,
and legal representatives to the other party to this Agreement, and to the partners,
successors, assigns, and legal representatives of such other party with respect to all
covenants of the Agreement.
M. Waivers. All waivers shall be in writing and signed by the waiving party. Either party’s
failure to enforce any provision of this Agreement shall not be a waiver and shall not
prevent either the City or Consultant from enforcing that provision or any other
provision of this Agreement in the future. Waiver of breach of any provision of this
Agreement shall not be deemed to be a waiver of any prior or subsequent breach
unless it is expressly waived in writing.
AGENDA ITEM #6. f)
PAGE 10 OF 10
N. Counterparts. The Parties may execute this Agreement in any number of
counterparts, each of which shall constitute an original, and all of which will together
constitute this one Agreement.
IN WITNESS WHEREOF, the Parties have voluntarily entered into this Agreement as of the date
last signed by the Parties below.
CITY OF RENTON
By:_____________________________
CONSULTANT
By:____________________________
Armondo Pavone
Mayor
Tony V. Pardi
President
_____________________________
Date
_____________________________
Date
Attest
_____________________________
Jason A. Seth
City Clerk
Approved as to Legal Form
By: __________________________
Shane Moloney
City Attorney
Contract Template Updated 5/21/21
AGENDA ITEM #6. f)
1
6/25/2021 1:28:20 PMZ:\PROJECTS\DATA\REN\S40\2021 WEST HILL BOOSTER PUMP STATION IMPROVEMENTS\CONTRACT\DESIGN\PSA_EXH A_SOW_WEST HILL BPS
IMPROVEMENTS_DESIGN AND SDB_REV-2.DOCX
EXHIBIT A
Scope of Work
City of Renton
West Hill Booster Pump Station Improvements
Design and Services During Bidding
June 2021
Background
The City of Renton (City) has identified the need for standby generator and booster pump station
(BPS) improvements at its West Hill BPS to increase pump station reliability and redundancy and to
meet future demand projections in the West Hill 495 operational area . RH2 Engineering, Inc., (RH2)
previously completed an initial study of the proposed BPS improvements at the West Hill BPS and a
preliminary design which included a land/topographic survey, preparation of preliminary
(30-percent) design plans and cost estimate, and preparation of a preliminary design report. The City
requested the services of RH2 to finalize the design and coordinate permit compliance for the BPS
improvements. The final design will include re-evaluation of the BPS hydraulics; preparation of
60- and 90-percent design plans, specifications, and estimate of probable construction cost;
preparation of final bid documents; and services during bidding.
The City had previously determined that the installation of an enclosed, weatherproof
sound-attenuated standby generator, automatic transfer switch, fuel tank, and load bank are
required at the pump station for backup power. A shelter with open sides is proposed for the
generator due to the non-residential and industrial areas where this pump station is located.
Additional backup power improvements include electrical power distribution and service equipment
upgrades, and generator screening and security.
In addition to the backup power improvements, the City is requesting the replacement of the existing
diesel engine fire pump with an electric motor prime mover. This will require both mechanical and
electrical system improvements to replace the equipment and supply power to the new motor.
Additional mechanical improvements will include replacement of the existing vertical turbine pumps
and removal of the existing diesel fuel tank. Electrical and control improvements will i nclude
replacement of the motor control center (MCC) and across -the-line motor starters with a new MCC
and variable frequency drives (VFDs), replacement of the electrical service equipment, replacement
of the remote telemetry panel with a new Allen-Bradley based programmable logic controller (PLC)
and operator interface (OI), and replacement of the pump station light fixtures with energy efficient
LED lighting. Existing electrical wiring will also be mostly replaced throughout the pump station.
Electrical raceways will be reused when possible.
RH2 will rely on the accuracy and completeness of any information, data, or materials generated or
provided by the City or others in relation to this work.
AGENDA ITEM #6. f)
City of Renton Exhibit A
West Hill Booster Pump Station Improvements – Design and SDB Scope of Work
2
6/25/2021 1:28:20 PMZ:\PROJECTS\DATA\REN\S40\2021 WEST HILL BOOSTER PUMP STATION IMPROVEMENTS\CONTRACT\DESIGN\PSA_EXH A_SOW_WEST HILL BPS
IMPROVEMENTS_DESIGN AND SDB_REV-2.DOCX
The following is a detailed description of the tasks that will be completed as part of this Scope of
Work for the final design of the pump station improvements at the West Hill BPS. Additional
engineering services for construction administration phases may be authorized by the City as part of
a future contract or amendment.
Task 1 – Project Management Services
Objective: Manage RH2’s project team and maintain frequent client communications. Maintain
project schedules and prepare monthly invoices and budget status summaries.
Approach:
Provide direction, coordination, and oversight to the RH2 project team. Organize, manage, and
coordinate technical disciplines as described herein, and implement quality assurance and
quality control (QA/QC) reviews to execute this Scope of Work in close coordination with City
staff.
Document and retain information generated during the execution of the project.
Prepare monthly invoices and budget status summaries , including a summary of tasks
completed during the invoice period and a budget spending curve.
Prepare for and attend progress meetings with City staff as requested via MS Teams. Progress
meetings are estimated to be thirty (30) minutes in length. Prepare meeting agenda and
minutes. A total of twenty (20) progress meetings are assumed in the Fee Estimate based on a
bi-weekly schedule.
Prepare for and attend a project kickoff/restart meeting via MS Teams with City Engineering
and Operations and Maintenance (O&M) staff prior to starting the hydraulic evaluation and
60-percent design work. Kickoff/restart meeting is estimated to be one (1) hour in length .
Prepare meeting agenda and minutes.
Create, maintain, and update a project design schedule in Gantt chart format using MS Project.
Monitor, modify, and update the project schedule throug hout the design phase to determine
potential impacts of proposed changes. Adjust the schedule to reflect the current status of the
project and revisions made to this Scope of Work.
RH2 Deliverables:
• Monthly invoices and budget status summaries in PDF format.
• Meeting agendas and minutes in PDF format.
• Project schedule updates in PDF format and MS Project.
AGENDA ITEM #6. f)
City of Renton Exhibit A
West Hill Booster Pump Station Improvements – Design and SDB Scope of Work
3
6/25/2021 1:28:20 PMZ:\PROJECTS\DATA\REN\S40\2021 WEST HILL BOOSTER PUMP STATION IMPROVEMENTS\CONTRACT\DESIGN\PSA_EXH A_SOW_WEST HILL BPS
IMPROVEMENTS_DESIGN AND SDB_REV-2.DOCX
Task 2 – Hydraulic Evaluation
Objective: Update the preliminary design calculations for the proposed West Hill BPS improvements
to reflect the data presented in the City’s 2021 Water System Plan Update.
Approach:
Update West Hill 495 Operating Area supply and storage capacity calculations through the City’s
20-year planning period with proposed West Hill BPS capacity improvements and updated
future demand projections from the City’s 2021 Water System Plan Update. Include capacity
calculations for normal operating conditions and conditions with the West Hill Reservoir out of
service for maintenance.
Document the proposed West Hill BPS capacity and configuration recommendations via
technical memorandum to the City.
Review future West Hill BPS pump operating conditions and pump exercising abilities and
discuss with the City via one (1) MS Teams video meeting. Meeting shall be approximately one
(1) hour in length.
Assumptions:
• The updated calculations will not require deviations in the proposed pump or motor capacities
presented in the preliminary design report.
• No additional hydraulic analysis with the City’s hydraulic water model will be performed as
part of this contract.
• The system head curve prepared as part of the preliminary design report is still applicable.
Provided by the City:
• Review and comment on the proposed West Hill BPS capacity and configuration
recommendations.
• Discussion regarding West Hill BPS operating conditions and pump exercising.
RH2 Deliverables:
• Proposed West Hill BPS capacity and configuration recommendations via technical
memorandum in PDF format.
• Minutes from meeting regarding West Hill BPS operating conditions and pump exercising.
Task 3 – 60-Percent BPS Improvements Design
Objective: Prepare 60-percent design plans that illustrate the BPS site work, electrical work,
structural work, and related improvements. Prepare 60 -percent technical specifications and an
estimate of probable construction cost.
Approach:
Prepare structural calculations for the generator shelter design.
AGENDA ITEM #6. f)
City of Renton Exhibit A
West Hill Booster Pump Station Improvements – Design and SDB Scope of Work
4
6/25/2021 1:28:20 PMZ:\PROJECTS\DATA\REN\S40\2021 WEST HILL BOOSTER PUMP STATION IMPROVEMENTS\CONTRACT\DESIGN\PSA_EXH A_SOW_WEST HILL BPS
IMPROVEMENTS_DESIGN AND SDB_REV-2.DOCX
Update mechanical plans and details for BPS piping requirements and final configurations.
Prepare 60-percent site and utility plans for space required for generator and shelter,
maintenance access, impervious surfaces, and construction staging activities.
Develop 60-percent mechanical, structural, site, and control details.
Prepare 60-percent electrical and control plans. Develop design of electrical systems for
operating appurtenances at the pump station. Work is to include designing the power
distribution system, motor control, and lighting system, sizing raceways and conductors,
designing the telemetry panel, and preparing electrical equipment and generator details.
Submit plans to Puget Sound Energy for review of power requirements. Meet with Puget Sound
Energy if necessary.
Prepare technical specifications using RH2’s modified Construction Specifications Institute (CSI)
format (Divisions 1 through 18) and combine with the City’s prepared construction contract
documents and general conditions.
Prepare 60-percent estimate of probable construction cost. The 60-percent estimate of
probable construction cost is considered a Class 2 (30-percent to 75-percent) estimate per the
Association for the Advancement of Cost Engineering (AACE) system for process industries.
Perform internal QA/QC review of the 60-percent plans and specifications.
Provide the City with an overview of the permits required for the project and an estimated
timeline for each permit.
Meet with the City via MS Teams or in-person, if conditions allow, to review 60-percent design
plans, technical specifications, and estimate. Prepare meeting agenda and minutes and
distribute to attendees. Meeting shall be approximately one (1) hour in length.
Assumptions:
• It is anticipated that the 60-percent review comments will be constrained to details that were
developed subsequent to the 30-percent review submittal, or that were revised or unresolved
during the 30-percent review process.
Provided by City:
• Standard construction contract documents and general conditions.
• Meeting attendance and review comments as red-lined markups to 60-percent design plans
and specifications.
RH2 Deliverables:
• 60-percent plans and details that identify the major site, structure, mechanical, and electrical
layouts and related details in PDF.
• 60-percent plans submittal to Puget Sound Energy in PDF format.
• 60-percent design technical specifications and front-end documents in PDF format.
AGENDA ITEM #6. f)
City of Renton Exhibit A
West Hill Booster Pump Station Improvements – Design and SDB Scope of Work
5
6/25/2021 1:28:20 PMZ:\PROJECTS\DATA\REN\S40\2021 WEST HILL BOOSTER PUMP STATION IMPROVEMENTS\CONTRACT\DESIGN\PSA_EXH A_SOW_WEST HILL BPS
IMPROVEMENTS_DESIGN AND SDB_REV-2.DOCX
• 60-percent estimate of probable construction cost i n PDF format.
• List of permits required for the project with estimated timeline for each permit in PDF format.
• Meeting agenda and minutes responding to the City’s review comments in PDF format.
Task 4 – 90-Percent BPS Improvements Design
Objective: Prepare 90-percent design plans, specifications, and estimate of probable construction
cost, incorporating the results of other tasks and review comments on 60-percent design from City
staff.
Approach:
Prepare 90-percent design plans for the BPS and update plans based on P uget Sound Energy
comments. The following plans are anticipated:
• General information and details (two (2) sheets).
• Sitework (two (2) sheets): existing site, grading, utilities, stormwater, and access.
• Structural (four (4) sheets): exterior elevations, floor and foundation plan, roof plan,
structural sections, and details.
• Mechanical (three (3) sheets): major, minor, and details.
• Electrical (eight (8) sheets): legend, one-line diagram, electrical site plan, power and signal
plan, lighting and receptacle plan, electrical equipment details, electrical details, and
schedules.
• Emergency power system (one (1) sheet).
• Control (seven (7) sheets): control logic diagrams, panel layouts, telemetry power and
communications diagram, and telemetry input/output wiring diagrams.
Finalize project details.
Update the technical specifications based on the City’s review comments to 90-percent
complete.
Prepare 90-percent estimate of probable construction cost. The 90-percent estimate is
considered a Class 1 (65-percent to 100-percent) estimate per the AACE system for process
industries.
Perform internal QA/QC review of the 90-percent plans and specifications.
Meet with the City via MS Teams or in-person, if conditions allow, to review 90-percent design
plans, specifications, and estimate. Prepare meeting agenda and minutes and distribute to
attendees. Meeting shall be approximately one (1) hour in length.
AGENDA ITEM #6. f)
City of Renton Exhibit A
West Hill Booster Pump Station Improvements – Design and SDB Scope of Work
6
6/25/2021 1:28:20 PMZ:\PROJECTS\DATA\REN\S40\2021 WEST HILL BOOSTER PUMP STATION IMPROVEMENTS\CONTRACT\DESIGN\PSA_EXH A_SOW_WEST HILL BPS
IMPROVEMENTS_DESIGN AND SDB_REV-2.DOCX
Assumptions:
• It is anticipated that the 90-percent review comments will be constrained to details that were
developed subsequent to the 60-percent review submittal, or that were revised or unresolved
during the 60-percent review process.
Provided by City:
• Meeting attendance and review comments as red-lined markups to 90-percent design plans
and specifications.
RH2 Deliverables:
• Construction plans, details, and technical specifications for 90 -percent review and Building
Permit submittal in PDF format.
• 90-percent estimate of probable construction in PDF format.
• Meeting agenda and minutes identifying the City’s review comments in PDF format.
Task 5 – Permitting
Objective: Support the City in obtaining necessary permit approvals for the proposed improvements .
Approach:
Coordinate with the City’s Planning staff regarding the project improvements and anticipated
permit requirements based on RH2’s review of the Renton Municipal Code (RMC), and prepare
pre-application meeting request materials . Coordinate with City project staff for a
pre-application meeting immediately upon notice to proceed. Work with City project staff to
review, finalize, and submit pre-application meeting request. Attend pre-application meeting
and document meeting discussions for subsequent permit coordination. It is assumed City
Planning and review staff will prepare formal meeting minutes; not RH2.
Support the City’s preparation of a State Environmental Policy Act (SEPA) checklist and
accompanying Land Use application forms. This subtask assumes RH2 support will be limited to
technical quantities and input for checklist completion and providing electronic copies of
60-percent design plans to accompany the City’s permit submittals; up to four (4) hours of RH2
staff time is assumed. City project staff will submit prepared applicati ons for City Planning
reviews/processing.
Support the City’s preparation of a Commercial Building Permit (CBP) application, including
preparing and providing NREC Energy Code checklists, and providing supporting plans,
structural calculations, and checklists. Preparation of structural calculations to be attached to
the CBP is included in Task 3. Plans will be from the 60- or 90-percent plan sets prepared under
Tasks 3 and 4, respectively. Following City project staff submittal of the CBP application for City
review, respond to resubmittal request, if needed. This subtask assumes RH2 support will be
limited to 1) preparation of energy code checklists; 2) providing electronic copies of plans,
structural calculations, and checklists for City CBP submittal; and 3) responding to one (1)
AGENDA ITEM #6. f)
City of Renton Exhibit A
West Hill Booster Pump Station Improvements – Design and SDB Scope of Work
7
6/25/2021 1:28:20 PMZ:\PROJECTS\DATA\REN\S40\2021 WEST HILL BOOSTER PUMP STATION IMPROVEMENTS\CONTRACT\DESIGN\PSA_EXH A_SOW_WEST HILL BPS
IMPROVEMENTS_DESIGN AND SDB_REV-2.DOCX
resubmittal request, as needed; up to twenty (20) hours of RH2 staff time is assumed for these
efforts.
Support the City’s preparation of Electrical and Mechanical Permit applications. This subtask
assumes RH2 support will be limited to providing electronic copies of plans for these permit
submittals. Plans will be from the 60 - or 90-percent plan sets prepared under Tasks 3 and 4,
respectively. Up to two (2) hours of RH2 staff time is assumed. City project staff will submit
prepared applications along with the CBP.
Prepare a Project Report to meet Washington State Department of Health (DOH) Water System
Design Manual and Washington Administrative Code (WAC) requirements and submit report
to DOH on behalf of the City. Document the project background and objectives, BPS sizing, and
BPS design criteria. Submit the Project Report detailing the analysis, results, and
recommendations to the City for review. Prepare DOH Project Approval Form, letter of
introduction, and Project Report for submittal to DOH.
Provide up to ten (10) hours of additional support to the City during permit submittals/reviews.
Assumptions:
• Up to three (3) RH2 staff members will attend the pre-application meeting.
• This Scope of Work assumes the projec t was included in the Council-adopted Water System
Plan, and meets the definition of a small utility, which is outright permitted in the Industrial –
Medium (IM) zone per RMC Table 4-2-060. Consequently, it is assumed no Administrative
Conditional Use Permit will be required.
• The required site work will be installed within the subject parcel, and no public (City or State
owned) right-of-way (ROW) will be entered; thus, no ROW review/permitting is needed.
• The proposed project improvements will not trigger a drainage review. This Scope of Work
does not include the preparation of a stormwater report.
• The project will not trigger Civil Construction Permit reviews through the City.
• The project will not disturb more than one (1) acre of land nor will it discharge surface waters
to waters of the state; therefore, no Construction Stormwater General Permit is anticipated.
• The City will pay all permit and review fees.
• RH2 makes no guarantee regarding the DOH review schedule or the extent of revisions or
resubmittals necessary for Project Report approval. Four (4) hours associated with a single
Project Report resubmittal is included in the Fee Estimate.
Provided by City:
• Payment of all permit fees.
• Review of pre-application meeting package, submittal to City Planning, and attendance.
AGENDA ITEM #6. f)
City of Renton Exhibit A
West Hill Booster Pump Station Improvements – Design and SDB Scope of Work
8
6/25/2021 1:28:20 PMZ:\PROJECTS\DATA\REN\S40\2021 WEST HILL BOOSTER PUMP STATION IMPROVEMENTS\CONTRACT\DESIGN\PSA_EXH A_SOW_WEST HILL BPS
IMPROVEMENTS_DESIGN AND SDB_REV-2.DOCX
• SEPA Checklist, Land Use, CBP, Electrical and Mechanical permit applications and submittal
to the City’s Planning and Building departments.
• Review and comment on the draft Project Report and coordinate with DOH , as needed for
Project Approval.
RH2 Deliverables:
• Draft pre-application meeting package in PDF format and attendance at meeting.
• Supporting 60- and/or 90-percent plans, Energy Code checklists, and structural calculations
to accompany City permit submittals in PDF format.
• DOH Project Approval Form, letter of introduction, and Project Report in PDF format and
one (1) hard copy.
Task 6 – Bid-Ready Plans and Specifications
Objective: Prepare bid-ready project plans and specifications.
Approach:
Prepare bid-ready plans, technical specifications, and construction contract documents per City
review comments.
Prepare a bid-ready estimate of probable construction cost. The bid-ready estimate is
considered a Class 1 (65-percent to 100-percent) estimate per the AACE system for process
industries.
RH2 Deliverables:
• Bid-ready design plans, technical specifications combined with City prepared construction
contract documents and general conditions, and estimate of probable construction cost in
PDF format.
Task 7 – Services During Bidding
Objective: Assist the City with the bidding and award process for the construction of the West Hill
BPS improvements. It is assumed that the City will advertise the project and be the main point of
contact for bidders. RH2 will atten d the bid opening.
Approach:
Prepare bid advertisement and coordinate the timing and placement of the bid advertisement
with the City. The City will submit the advertisement to the appropriate publications.
Attend one (1) pre-bid walkthrough with prospective bidders.
Respond to approximately twenty (20) contractor and supplier technical questions during
bidding.
AGENDA ITEM #6. f)
City of Renton Exhibit A
West Hill Booster Pump Station Improvements – Design and SDB Scope of Work
9
6/25/2021 1:28:20 PMZ:\PROJECTS\DATA\REN\S40\2021 WEST HILL BOOSTER PUMP STATION IMPROVEMENTS\CONTRACT\DESIGN\PSA_EXH A_SOW_WEST HILL BPS
IMPROVEMENTS_DESIGN AND SDB_REV-2.DOCX
Prepare up to two (2) addenda if determined necessary to clarify, revise, or change the
construction plans, technical specifications, or project conditions during the bidding process.
Each addenda is estimated to include approximately five (5) clarifications, five (5) responses to
contractor questions, three (3) specification revisions, and three (3) plan revisions.
Attend the bid opening and prepare a bid tabulation. Review bidders’ qualifications and prepare
a letter of recommendation of award.
Create electronic conformed for construction contract documents for contractors. Prepare two
(2) sets of 11-inch by 17-inch color plans and two (2) sets of specifications for internal use.
Provided by City:
• Submission of the advertisement to the appropriate publications and payment of fees.
• Attendance at pre-bid walkthrough with prospective bidders.
• Issuance of addenda as needed.
RH2 Deliverables:
• Bid advertisement in PDF format.
• Attendance at pre-bid walkthrough.
• Responses to contractor or supplier questions via telephone or email.
• Up to two (2) addenda in PDF format.
• Bid tabulation in PDF format.
• Letter of recommendation of award in PDF format.
• Conformed for construction contract documents in PDF format.
• Two (2) sets of 11-inch by 17-inch color plans and two (2) sets of conformed for construction
contract documents for internal use.
AGENDA ITEM #6. f)
6/25/2021 1:32:00 PM Z:\Projects\Data\REN\S40\2021 West Hill Booster Pump Station Improvements\Contract\Design\PSA_EXH B_Schedule_West Hill BPS Improvements_Design and
SDB_Rev-1.docx
Exhibit B: Time Schedule of Completion
City of Renton
West Hill Booster Pump Station Improvements
Design and Services During Bidding
ANTICIPATED NOTICE TO PROCEED DATE: September 1, 2021
Task
Anticipated
Completion
Task 1 – Project Management Services May 31, 2022
Task 2 – Hydraulic Evaluation September 30, 2021
Task 3 – 60-Percent BPS Improvements Design December 10, 2021
Task 4 – 90-Percent BPS Improvements Design March 11, 2022
Task 5 – Permitting April 8, 2022
Task 6 – Bid-Ready Plans and Specifications April 8, 2022
Task 7 – Services During Bidding May 31, 2022
ANTICIPATED CONTRACT COMPLETION DATE: May 31, 2022
AGENDA ITEM #6. f)
Overhead % Fee %
Negotiated Rate
Per Hour
RATE LIST 185.45%12%RATE
Professional I 47.23 87.59 16.18 $151.00
Professional II 51.92 96.29 17.79 $166.00
Professional III 56.93 105.57 19.50 $182.00
Professional IV 61.31 113.69 21.00 $196.00
Professional V 66.00 122.39 22.61 $211.00
Professional VI 70.06 129.94 24.00 $224.00
Professional VII 75.07 139.22 25.71 $240.00
Professional VIII 78.20 145.02 26.79 $250.00
Professional IX 78.20 145.02 26.79 $250.00
Control Specialist I 42.85 79.47 14.68 $137.00
Control Specialist II 46.61 86.43 15.96 $149.00
Control Specialist III 51.30 95.13 17.57 $164.00
Control Specialist IV 55.68 103.25 19.07 $178.00
Control Specialist V 59.12 109.63 20.25 $189.00
Control Specialist VI 63.50 117.75 21.75 $203.00
Control Specialist VII 68.19 126.45 23.36 $218.00
Control Specialist VIII 71.00 131.68 24.32 $227.00
Technician I 35.97 66.71 12.32 $115.00
Technician II 39.10 72.51 13.39 $125.00
Technician III 44.42 82.37 15.21 $142.00
Technician IV 47.86 88.75 16.39 $153.00
Technician V 52.24 96.87 17.89 $167.00
Technician VI 57.24 106.15 19.61 $183.00
Technician VII 61.93 114.85 21.21 $198.00
Technician VIII 65.37 121.23 22.39 $209.00
Administrative I 23.46 43.51 8.04 $75.00
Administrative II 27.53 51.05 9.43 $88.00
Administrative III 33.16 61.49 11.36 $106.00
Administrative IV 39.10 72.51 13.39 $125.00
Administrative V 44.73 82.95 15.32 $143.00
CAD/GIS System $27.50
CAD Plots - Half Size $2.50
CAD Plots - Full Size $10.00
CAD Plots - Large $25.00
Copies (bw) 8.5" X 11" $0.09
Copies (bw) 8.5" X 14" $0.14
Copies (bw) 11" X 17" $0.20
Copies (color) 8.5" X 11" $0.90
Copies (color) 8.5" X 14" $1.20
Copies (color) 11" X 17" $2.00
Mileage $0.56
Subconsultants 15%
Outside Services At Cost
EXHIBIT C-1
Consultant Fee Determination- Summary Sheet
(Negotiated Hourly Rates of Pay)
2021 Fee Schedule
SubConsultant:
RH2 Engineering, Inc.
Negotiated
Cost Rate
Rates listed are adjusted annually.
AGENDA ITEM #6. f)
March 29, 2021
RH2 Engineering, Inc.
22722 29th Drive SE, Ste 210
Bothell, WA 98021
Subject: Acceptance FYE 2019 ICR Risk Assessment Review
Dear Myra Sachs:
Assessment review of your Indirect Cost Rate (ICR), we have accepted your proposed
FYE 2019 ICR of 185.45% of direct labor. This rate will be applicable for WSDOT
Agreements and Local Agency Contracts in Washington only. This rate may be subject
to additional review if considered necessary by WSDOT. Your ICR must be updated on
an annual basis.
Costs billed to agreements/contracts will still be subject to audit of actual costs, based
on the terms and conditions of the respective agreement/contract.
This was not a cognizant review. Any other entity contracting with your firm is
responsible for determining the acceptability of the ICR.
If you have any questions, feel free to contact our office at (360) 705-7019 or via email
consultantrates@wsdot.wa.gov.
Regards;
ERIK K. JONSON
Contract Services Manager
EKJ:ah
AGENDA ITEM #6. f)
EXHIBIT C-2
Fee Estimate
City of Renton
West Hill Booster Pump Station Improvements
Design and Services During Bidding
Jun-21
Description Project Manager Principal Project Engineer Project Engineer Project Engineer Project Engineer Staff Engineer Staff Engineer Staff Engineer Permitting Permitting Project Accounting Administrative
Support
Total
Hours Total Labor Total CADD Total Mileage Total Printing Total Expense Total Cost
Classification Professional VII Professional IX Professional V Professional V Professional V Professional V Professional I Professional I Professional II Professional V Professional II Administrative II Administrative IV
$240.00 $250.00 $211.00 $211.00 $211.00 $211.00 $151.00 $151.00 $166.00 $211.00 $166.00 $88.00 $125.00
Chris Roberts Tony Pardi Ryan Feskens Mark Braaksma Jon Conner Ryan Withers Mitchell Dean Leily Mojarab Danielle Dorr Alicia Pettibone Jenny Sandifer Tracy Hill Julie Self
Task 1 Project Management Services 30 -12 --------4 8 54 11,084$-$84$56$140$11,224$
1.1 Provide direction, coordination, and oversight to RH2 team 6 ------6 1,440$-$-$-$-$1,440$
1.2 Document and retain information 2 ----------4 6 980$-$-$-$-$980$
1.3 Prepare monthly invoices and budget status summaries 6 ----------4 4 14 2,292$-$-$36$36$2,328$
1.4 Prepare for and attend progress meetings with City staff 10 -10 ---------20 4,510$-$84$-$84$4,594$
1.5 Prepare for and attend kickoff/restart meeting with City 2 -2 ---------4 902$-$-$-$-$902$
1.6 Create, maintain, and update project schedule 4 -----------4 960$-$-$20$20$980$
Task 2 Hydraulic Evaluation -2 7 --16 ------2 27 5,603$-$-$-$-$5,603$
2.1 Update supply and storage capacity calculations --1 --8 ------9 1,899$-$-$-$-$1,899$
2.2 Document proposed capacity and configuration recommendations -2 4 --6 -----2 14 2,860$-$-$-$-$2,860$
2.3 Review pump operating conditions with City --2 --2 ------4 844$-$-$-$-$844$
Task 3 60-Percent BPS Improvements Design 36 6 102 66 26 8 110 124 58 2 --10 548 99,396$7,728$56$241$8,024$107,420$
3.1 Prepare structural calculations ----8 ---20 ---28 5,008$550$-$-$550$5,558$
3.2 Update mechanical plans and details --20 ----40 ----60 10,260$1,100$-$-$1,100$11,360$
3.3 Prepare 60-percent site and utility plans --20 ----40 ----60 10,260$1,100$-$-$1,100$11,360$
3.4 Develop 60-percent mechanical, structural, site, and control details --20 -12 --40 30 ---102 17,772$1,925$-$-$1,925$19,697$
3.5 Prepare 60-percent electrical and control plans 14 --50 --106 -----170 29,916$2,613$-$123$2,735$32,651$
3.6 Submit plans to Puget Sound Energy for review 4 --4 --4 -----12 2,408$110$28$-$138$2,546$
3.7 Prepare technical specifications and general conditions 4 -24 8 2 8 --4 --8 58 11,486$110$-$18$128$11,614$
3.8 Prepare 60-percent estimate of probable construction costs 2 -4 4 ---4 4 ---18 3,436$220$-$-$220$3,656$
3.9 Perform internal QA/QC review of 60-percent design 6 6 6 -2 ------2 22 4,878$-$-$100$100$4,978$
3.10 Provide City with an overview of permits required --2 -2 ----2 --6 1,266$-$-$-$-$1,266$
3.11 Meet with City to review 60-percent design 6 -6 ---------12 2,706$-$28$-$28$2,734$
Task 4 90-Percent BPS Improvements Design 24 8 40 28 10 -44 46 34 ---8 242 44,452$3,300$28$418$3,746$48,198$
4.1 Prepare 90-percent design plans 8 -20 20 8 -40 40 30 ---166 29,108$2,915$-$400$3,315$32,423$
4.2 Finalize project details 1 -4 2 --4 4 ----15 2,714$220$-$-$220$2,934$
4.3 Update the technical specifications 2 -8 4 1 ---2 --4 21 4,055$55$-$18$73$4,128$
4.4 Prepare 90-percent estimate of probable construction costs 1 -2 2 1 --2 2 ---10 1,929$110$-$-$110$2,039$
4.5 Perform internal QA/QC review 6 8 ---------4 18 3,940$-$-$-$-$3,940$
4.6 Meet with City to review 90-percent design 6 -6 ---------12 2,706$-$28$-$28$2,734$
Task 5 Permitting 9 2 10 6 5 18 -7 2 8 15 -6 88 17,206$248$-$65$313$17,519$
5.1 Coordinate and attend pre-application meeting 2 -2 ------2 5 1 12 2,279$-$-$1$1$2,280$
5.2 Support City SEPA and Land Use permit submittals 1 -1 ----1 -1 --4 813$28$-$-$28$841$
5.3 Support City CBP submittal and respond to resubmittal request 1 -2 2 1 --6 2 1 4 1 20 3,533$220$-$1$221$3,754$
5.4 Support City Electrical and Mechanical permit submittals 1 -1 ---------2 451$-$-$-$-$451$
5.5 Prepare DOH Project Report and submittal package 2 2 2 4 4 16 ---2 4 4 40 8,052$-$-$63$63$8,115$
5.6 Provide up to 10 hours of additional permit support 2 -2 --2 ---2 2 -10 2,078$-$-$1$1$2,079$
Task 6 Bid-Ready Plans and Specifications 4 -9 9 --16 16 ----4 58 10,090$825$-$118$943$11,033$
6.1 Prepare bid-ready plans and specifications 4 -8 8 --16 16 ---4 56 9,668$825$-$118$943$10,611$
6.2 Prepare bid-ready estimate of probable construction cost --1 1 --------2 422$-$-$-$-$422$
Task 7 Services During Bidding 16 -26 14 --4 8 ----6 74 14,842$330$56$118$504$15,346$
7.1 Prepare bid advertisement 1 -2 --------2 5 912$-$-$-$-$912$
7.2 Attend pre-bid walkthrough 4 -4 ---------8 1,804$-$28$-$28$1,832$
7.3 Respond to contractor or supplier questions 2 -8 8 --------18 3,856$-$-$-$-$3,856$
7.4 Prepare up to two (2) addenda 2 -8 4 ---8 ----22 4,220$220$-$-$220$4,440$
7.5 Attend bid opening and prepare letter of recommendation 6 ----------2 8 1,690$-$-$-$-$1,690$
7.6 Create conformed for construction contract documents 1 -4 2 --4 ----2 13 2,360$110$28$118$256$2,616$
PROJECT TOTAL 119 18 206 123 41 42 174 201 94 10 15 4 44 1091 202,673$12,430$224$1,016$13,670$216,343$
Z:\Projects\Data\REN\S40\2021 West Hill Booster Pump Station Improvements\Contract\Design\PSA_EXH C-2_FEE_West Hill BPS Improvements_Design and SDB_Rev-2.xlsx 6/29/2021 1:10 PM AGENDA ITEM #6. f)
7,943
662
West Hill Booster Pump Station
This map is a user generated static output from an Internet mapping site and
is for reference only. Data layers that appear on this map may or may not be
accurate, current, or otherwise reliable.
6/30/2021
Legend
4500225
THIS MAP IS NOT TO BE USED FOR NAVIGATION
Feet
Notes
450
WGS_1984_Web_Mercator_Auxiliary_Sphere
Information Technology - GIS
RentonMapSupport@Rentonwa.gov
City and County Labels
Parcels
City and County Boundary
<all other values>
Renton
Streets
Parks
Waterbodies
2019.sid
Red: Band_1
Green: Band_2
Blue: Band_3
West Hill Booster
Pump Station
Renton
Municipal
Airport Cedar RiverRainier Ave NAGENDA ITEM #6. f)
1
CITY OF RENTON, WASHINGTON
RESOLUTION NO. ________
A RESOLUTION OF THE CITY OF RENTON, WASHINGTON, AMENDING THE
2021/2022 CITY OF RENTON FEE SCHEDULE.
WHEREAS, on November 23, 2009, the Council adopted Ordinance No. 5509, which
removed many fees from the Renton Municipal Code and consolidated them into the 2010 City
of Renton Fee Schedule brochure, which has been subsequently amended; and
WHEREAS, on November 9, 2020, the City Council passed Resolution No. 4422, adopting
an amended fee schedule for 2021 and 2022; and
WHEREAS, on May 3, 2021, the City Council passed Resolution No. 4433, adopting an
amended fee schedule in order to make periodic updates and corrections to and reorganize the
fee schedule and to incorporate fee amendments included in the City’s 2021 Carry Forward and
1st Quarter budget amendment; clarify the timing of payment of publication fees in Section I of
the fee schedule; remove “Boat Launch Rates: Additional sticker (launching permit)” from Section
IV.2 of the fee schedule; set forth land use review fees for revisions and modifications to
conditional use permits and plats in Section XII.2 of the fee schedule; update Section XII.3 of the
fee schedule to (1) clarify that pursuant to RMC 9‐10‐9, public agencies are subject to franchise
permit fees and (2) add fee exceptions for certain work by individual homeowners, certain
moving activities, and certain work in the CD (Center Downtown) zone; and
WHEREAS, it is necessary to approve an amended fee schedule to make periodic updates
as part of the City’s 2021 2nd Quarter budget amendment;
AGENDA ITEM # 8. a)
RESOLUTION NO. _______
2
WHEREAS, it is further necessary to approve an amended fee schedule updating Section
XII.1 of the fee schedule to change demolition permit fees from a flat rate fee to a fee calculated
based on building valuation; and
WHEREAS, it is further necessary to approve an amended fee schedule setting forth public
works fees for public reimbursement of electrical service and setting forth public works fees for
conduit lease rates in Section XII.3 of the fee schedule; and
WHEREAS, it is further necessary to approve an amended fee schedule to add the
multifamily tax exemption application fee pursuant to RMC 4‐1‐220 and add the assessed current
market value for replacement tree fee in lieu in Section XII.6 of the fee schedule;
NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF RENTON, WASHINGTON, DO
RESOLVE AS FOLLOWS:
SECTION I. The fee schedule is amended and replaced with the 2021‐2022 City of
Renton Fee Schedule brochure, which is attached hereto and adopted by this reference (“Fee
Schedule”). An updated copy of the Fee Schedule shall at all times be filed with the City Clerk as
required by Ordinance No. 5509.
SECTION II. The amended Fee Schedule adopted by Section I of this resolution shall be
effective upon passage and approval of this resolution, and thereafter act as the City of Renton's
Fee Schedule for all fees or charges referenced therein. The Fee Schedule shall remain in effect until
amended or otherwise replaced by the City Council. In the event the Fee Schedule is not amended
prior to the year 2023, the fees specified for the year 2022 shall continue to apply into and beyond
2023 until amended by the City Council.
AGENDA ITEM # 8. a)
RESOLUTION NO. _______
3
PASSED BY THE CITY COUNCIL this ______ day of _______________________, 2021.
______________________________
Jason A. Seth, City Clerk
APPROVED BY THE MAYOR this ______ day of _______________________, 2021.
______________________________
Armondo Pavone, Mayor
Approved as to form:
______________________________
Shane Moloney, City Attorney
RES:1880:6/15/21
AGENDA ITEM # 8. a)
Rev. June 2021
AGENDA ITEM # 8. a)
Table of Contents Page
SECTION I. MISCELLANEOUS FEES 1
SECTION II. MAPLEWOOD GOLF COURSE 2
SECTION III. City CENTER PARKING FEES 3
SECTION IV. AQUATIC FEES 3
SECTION V. CARCO THEATER (REPEALED) 3
SECTION VI. PARKS AND FACILITIES USE AND RENTAL 3
SECTION VII. COMMUNITY CENTER PASS CARD & FEES 4
SECTION VIII. AIRPORT CHARGES 5
SECTION IX. ANIMAL LICENSES FEES* ‐ RMC 5‐4‐25
SECTION X. BUSINESS LICENSES 5
SECTION XI. ADULT ENTERTAINMENT LICENSES 5
SECTION XII. DEVELOPMENT FEES 5
Building Fees:5
Land Use Review Fees:7
Public Works Fees: 8
Technology Surcharge Fee 12
Impact Fees: 12
Miscellaneous Fees: 13
SECTION XIII. FIRE DEPARMENT FIRE MARSHAL FEES (RFA) 13
AGENDA ITEM # 8. a)
City of Renton Fee Schedule
2021‐2022
SECTION I. MISCELLANEOUS FEES 2021 2022
1. Maps:
a. Zoning maps ‐ standard 11 x 17 $4 $4
b. Zoning maps ‐ large 24 x 36 $12 $12
c. Comprehensive Plan map ‐ standard 11 x 17 $4 $4
d. Comprehensive Plan map ‐ large 24 x 36 $12 $12
e. Precinct maps $5 $5
2. Plat:
a. First page $2 $2
b. Each additional page $1 $1
3. Photocopies:
a. Each 8.5" x 11" or 8.5" x 14"$0.15 $0.15
b. Each 11" x 17"$0.20 $0.20
c. Each 8.5" x 11" or 8.5" x 14" color $0.25 $0.25
4. Budget:
a. City's Budget $10 $10
b. N/C N/C
5. Audio or Video Recording Copies:
a.Audio recording, each copy $2 $2
b.Video recording, each copy $2 $2
6. Regulations and Plans:
a.Comprehensive Plan and Map $30 $30
b.Title IV, Development Regulations:
(i) Text and Zoning Map $110 $110
(ii) Text only $100 $100
c.Individual Chapters of Development Regulations $10 $10
d. Renton Municipal Code (two volumes)$400 $400
e.Code Supplements, per year:
(i) Titles I ‐ III and VI ‐ X $70 $70
(ii) Title IV $70 $70
7. Miscellaneous Services:
a.Certification and Notary Fees ‐ Clerk's Certification $10 $10
b.Notary Public Attestation or Acknowledgement or as $10 $10
otherwise provided for in RCW 42.28.090, per signature
c.Hold Harmless Agreements and other similar documents $20 $20
not otherwise provided for
d.Lamination of licenses, pictures $6 $6
e.Community Development Block Grants (CDBG) Loan Program:
(i) Application Fee $200 $200
(ii) Loan Origination Fee $150 or 0.25% of loan amount,
whichever is greater
$150 or 0.25% of loan
amount, whichever is
greater
(iii) Closing Costs (including any legal fees)50% of total actual costs 50% of total actual costs
8. Miscellaneous Charges for Police Services:
a.Police Reports per page $0.15 $0.15
b.Record Checks (Written Response) $5 $5
c.Photographs ‐ Digital on CD $2 $2
d.Photographs ‐ black & white or color ‐ Cost of developing film Cost Cost
e.Fingerprint Cards $5 $5
(i) Each additional card $1 $1
9. Charges for Fire Documents:
a.Fire reports per page $0.15 $0.15
b.Fire investigative report on CD $2 $2
c.First copy ‐ black & white or color ‐ Cost of developing film Cost Cost
d.Additional copy ‐ black & white or color ‐ Cost of developing film Cost Cost
10. Computer Listings:
a.City of Renton new business list $10 $10
b.List of all business licenses $20 $20
c.Copies requested to be faxed, local number $3 $3
d.Copies requested to be faxed, long distance number
(i) One (1) ‐ five (5) pages $10 $10
(ii) Six (6) or more pages (ten (10) page limit)$20 $20
11. Utility Fee:
a.Special Request Water Meter Reading $30 $30
b.Utility New Account Setup $25 $25
c.Utility Billing Account Transfer (tenant billing form)$5 $5
d.Water utility outstanding balance search requested by $25 $25
fax, messenger, or letter
12. Schedule of Fines for False Alarms ‐ Security/Burglar: (effective February 1, 2019)
a.One‐time Registration Fee $25 $25
b.Annual Registration Renewal N/C N/C
c.First False Alarm in a registration year*N/C N/C
d.Second False Alarm in a registration year*$100 $100
e.Third or more False Alarm in a registration year*$250 $250
f.Late Payment Fee $25 $25
City's Budget to other municipality or quasi‐municipal corporation or other nonprofit charitable or education organization
1
AGENDA ITEM # 8. a)
City of Renton Fee Schedule
2021‐2022
SECTION I. MISCELLANEOUS FEES (CONTINUED)2021 2022
g.Unregistered Alarm System Fee $50 $50
*A registration year shall mean January 1 thru December 31 each year.
13. NSF Check Fees $25 $25
14. Veteran Park Tile: Three lines $75 $75
15. Electronic Records:
a.Photocopies or printed copies of electronic records, per page $0.15 $0.15
b.Scanning paper records, per page $0.10 $0.10
c.Electronic files or attachments uploaded for electronic delivery (email, cloud‐based data storage service, or $0.05 $0.05
other means of electronic delivery), for each four (4) files
d.Transmission of records in an electronic format or for the use of agency equipment to send the records $0.10 $0.10
electronically, per gigabyte (GB)
16. Document Recording Fees:
a.Actual Costs Actual Costs
b.Miscellaneous charges associated with document recording, such as courier fees Actual Costs Actual Costs
17. Publication Fees:
Actual Costs Actual Costs
SECTION II. MAPLEWOOD GOLF COURSE 2021 2022
1.
a.Weekday:
(i) 18 Hole $39 $39
(ii) 9 Hole $29 $29
(iii) 18 Hole, Senior $30 $30
(iv) 9 Hole, Senior $22 $22
(v) 18 Hole, Junior $21 $21
(vi) 9 Hole, Junior $17 $17
b.Weekend:
(i) 18 Hole $46 $46
(ii) 9 Hole $29 $29
2. Club Rental*:
a.Regular $25 $25
b.Premium $50 $50
3. Golf Cart Fees*:
a.18 Hole $34 $34
b.18 Hole Single Rider $26 $26
c.9 Hole $22 $22
d.9 Hole Single Rider $16 $16
e.Trail Fee $15 $15
4. Driving Range Fees*:
a.Large Bucket $11 $11
b.Small Bucket $6 $6
c.Warm‐up Bucket $4 $4
5. Lesson Fees:
a.1/2 Hour Private $45 $45
b.1 Hour Private $65 $65
c.1/2 Hour Series Private $160 $160
d.1 Hour Series Private $240 $240
e.Group Series $100 $100
f.1/2 Hour Private, Junior $25 $25
g.Playing Lesson(3‐hole minimum/9‐hole maximum) per hole $15 $15
* Rates include Washington State Sales Tax (WSST)
*The charges identified in RCW 42.56.120(3)(b) (and referenced above) may be combined to the extent that more than one
type of charge applies to copies produced in response to a particular request. The actual cost of any digital storage media or
device provided by the agency. Alternatively, the City may charge a flat fee of up to $2 for the entire request as long as the cost
of uploading and transmitting the electronic records is reasonably estimated to equal or exceed that amount. Only one $2 flat
fee per request is authorized for electronic records produced in installments. When records are provided electronically on a CD,
DVD, thumb drive, flash drive, or other electronic device, the requestor will be charged for the cost of the electronic storage
device. The City may charge an actual‐cost service charge for requests that require use of IT expertise to prepare data
comilations or provide customized electronic access services when not used by the City for other purposes. A cost estimate and
explanation will be provided to the requestor before incurring the costs.
Option to waive charges. The City may waive charges associated with fulfilling a request. The decision will be based on
various factors, including the volume and format of the responsive documents. The decision to assess fees for fulfilling a public
records request shall be made on a consistent and equitable basis, dependent primarily upon the amount of staff time required
for copying, scanning, shipping, uploading, and/or transmitting the records associated with fulfilling a request.
Certified copies. If the requestor is seeking a certified copy of a City record, an additional charge of $1.00 per each complete
document may be applied to cover the additional expense and time required for certification.
The applicant shall pay all document recording fees charged by King county and all administrative fees charged by the title company
for processing. Payment in full shall by submitted to the City before documents are sent for recording.
The applicant shall pay all Publication fees charged by publication outlet used by the City (The Seattle Times or equivalent).
Payment in full shall be made to the City prior to public hearing, permit approval or issuance, whichever comes first.
Note: Should Section I fees due total less than $4.00 and no other fee is due to the City at the same time, the department
administrator may authorize to waive the entire amount due at their discretion.
Green Fees*:
For purposes of this section, "weekend" shall mean Friday, Saturday, and Sunday. "Weekday" shall mean the remaining
four days of the week. "Junior" shall mean ages 17 and under, "Senior" shall mean ages 62 and over.
Off‐season and promotional rates determined by management; posted on website.
2
AGENDA ITEM # 8. a)
City of Renton Fee Schedule
2021‐2022
SECTION III. City CENTER PARKING FEES 2021 2022
1. City Center Parking Garage Fees:
Parking rates for retail parking will be as follows:
a.Zero (0) ‐ two (2) hours N/C N/C
b.Two (2) ‐ four (4) hours $2 $2
c.Four (4) ‐ six (6) hours $4 $4
d.Six (6) ‐ (10) hours $6 $6
e. 10 hours or more $10 $10
f.Monthly pass‐holders, tax included $35 $35
SECTION IV. AQUATIC FEES 2021 2022
1. Admission for the Aquatic Center shall be as follows:
a.Regular Session:
(i) Infants ‐ under 1 year N/C N/C
(ii) Youth ‐ 1 to 4 years $6 $6
(iii) Ages 5 and up $11 $11
(iv) Lap swim ‐ water walking only $5 $5
b.Season Pass:
(i) Resident infants ‐ under 1 year N/C N/C
(ii) Non‐resident infants ‐ under 1 year N/C N/C
(iii) Resident ages 1 and up $60 $60
(iv) Non‐resident ages 1 and up $120 $120
c.Miscellaneous Rates:
(i) Resident regular session per person rate (group rates)*$12 $12
(ii) Non‐resident regular session per person rate $16 $16
(iii) Locker Rental $0.25 $0.25
d.Canopy Rental Fees*: (includes canopy and admission for one leisure swim session):
(i) Henry Moses Party Tent #1
(10' x 20' for up to twenty‐five (25) guests on wave pool):
(1) Resident Rate, per session $450 $450
(2) Non‐resident Rate, per session $550 $550
(ii) Henry Moses Party Tent #2
(10' x 20' for up to twenty‐five (25) guests):
(1) Resident Rate $400 $400
(2) Non‐Resident Rate $500 $500
(iii) Henry Moses Party Tent #3
(10' x 10' for up to ten (10) guests):
(1) Resident Rate, per session $200 $200
(2) Non‐resident Rate, per session $240 $240
e.Resident Rate all inclusive*$1,800 $1,800
f.Non‐resident Rate all inclusive*$2,300 $2,300
*Sales tax not included in the rental fee
g.Swim Lesson Program: Fees and associated descriptions are published in the "What's Happening " Renton Activities Guide
h.End‐of‐year School Party Rentals:
(i) Renton School District
(1) 001 ‐ 299 students $1,900 $1,900
(2) 300 ‐ 399 students $2,250 $2,250
(3) 400 ‐ 499 students $2,400 $2,400
(4) 500 ‐ 599 students $2,550 $2,550
(ii) Other Schools and Districts
(1) 001 ‐ 299 students $2,450 $2,450
(2) 300 ‐ 399 students $2,850 $2,850
(3) 400 ‐ 499 students $3,150 $3,150
(4) 500 ‐ 599 students $3,360 $3,360
2. Boat Launch Rates:
a.Daily resident ‐ 7 days a week $10 $10
b.Daily Non‐resident ‐ 7 days a week $20 $20
c.Overnight resident ‐ 7 days a week $20 $20
d.Overnight Non‐resident ‐ 7 days a week $40 $40
e.Annual parking permit ‐ resident $60 $60
f.Annual parking permit ‐ non‐resident $120 $120
g.$50 $50
SECTION V. CARCO THEATER (REPEALED)2021 2022
SECTION VI. PARKS AND FACILITIES USE AND RENTAL 2021 2022
1. Outlying Picnic Shelters (Cedar River Trail, Liberty Park, Phillip Arnold Park, Teasdale Park and Heritage Park) Maximum of 50 people:
a.Resident 10am‐7pm $140 $140
b.Non‐resident 10am‐7pm $280 $280
2. Gene Coulon Beach Park Shelters (South #1, South #2 and Creekside) Maximum of 75 people:
a.Resident 10am‐7pm $140 $140
b.Non‐resident 10am‐7pm $280 $280
e.South Shelters 1 & 2 Resident rate $300 $300
f.South Shelters 1 & 2 Non‐resident rate $600 $600
3. Gene Coulon Beach Park Shelters (North Shelter):
a.Resident 10am‐7pm $160 $160
b.Non‐resident 10am‐7pm $320 $320
*Group Rates: Group rates offer guaranteed admission for the group. In order to qualify for a group rate, the group must consist
of ten (10) or more persons, and the session must be scheduled in advance. Please note that the number of groups may be
limited each day. Staff has the authority to offer discounted daily rates for partial sessions or Renton‐only events.
Fishing Tournaments at Coulon Beach (additional rental fee if using the Pavilion area for weigh in and or electricity at the current
rental rate) per event
3
AGENDA ITEM # 8. a)
City of Renton Fee Schedule
2021‐2022
SECTION VI. PARKS AND FACILITIES USE AND RENTAL (CONTINUED)2021 2022
4. Tennis, Basketball and Sand Volleyball court rate per hour (Tournament Play Only):
a.Tennis court $10 $10
b.Park basketball court $10 $10
c.Sand volleyball court $10 $10
5. Catering and Event Rate (All city parks apply):
a.Resident half day $200 $200
b.Resident full day $350 $350
c.Non‐resident half day $400 $400
d.Non‐resident full day $700 $700
6.
a.Each $50 $50
7.
a.Resident rate per hour $10 $10
b.Non‐resident rate per hour $25 $25
c.Special Event Permit Fee $85 $85
8. Piazza Park Open Space Event Rental
a.Full day rental 10am ‐ 7pm $500 $500
9. Photo Shoots per hour:
a.Commercial Film and Photo Shoots per hour $300 $300
10. Electrical Spider Box rental:
a. Electrical spider box rental per box, per event, with special event approval $100 $100
11. Athletic Field Rental, Lights and Prep Fees:
a.Sports field rental per hour ‐ resident $25 $25
b.Sports field rental per hour ‐ non‐resident $30 $30
c.Renton Area Youth Sports Agencies, per hour $6 $6
d.Field prep for softball/baseball ‐ resident per occurrence $30 $30
e.Field prep for soccer ‐ resident per occurrence $45 $45
f.Custom Field prep ‐ resident per occurrence $100 $100
g.Field prep for softball/baseball ‐ non‐resident per occurrence $35 $35
h.Field prep for soccer ‐ non‐resident per occurrence $50 $50
i.Custom Field prep ‐ non‐resident per occurrence $100 $100
j.Field lights all sports ‐ resident per hour $25 $25
k.Field lights all sports ‐ non‐resident per hour $30 $30
12. Banquet & Classroom Rental ‐ Community Center & Senior Activity Center:
a.Friday evening 5 hour minimum ‐ resident $650 $650
b.Weekend Rates 10 hour minimum ‐ resident $1,300 $1,300
c.Extra hours ‐ per hour ‐ resident $130 $130
d.Friday 5 hour minimum ‐ non‐resident $750 $750
e.Weekend Rates 10 hour minimum ‐ non‐resident $1,500 $1,500
f.Extra hours ‐ per hour ‐ non‐resident $150 $150
g.Kitchen charge ‐ per hour $100 $100
h.Banquet Room ‐ Mon ‐ Fri ‐ daytime ‐ resident/hr 3 hour min $85 $85
i.Banquet Room ‐ Mon ‐ Fri ‐ daytime ‐ non‐resident/hr 3 hour min $90 $90
j.Damage deposit $550 $550
k.Contract violation fee ‐ per hour $200 $200
l.Cancellation Fee ‐ Less than 90 days $550 $550
13. Classroom and Gymnasium Rental ‐ Renton Community Center:
a.Resident single gym athletic ‐ per hour $45 $45
b.Non‐resident single gym athletic ‐ per hour $50 $50
c.Resident double gym athletic ‐ per hour $90 $90
d.Non‐resident double gym athletic ‐ per hour $100 $100
e.Resident single gym non‐athletic $550 $550
f.Non‐resident single gym non‐athletic $675 $675
g.Resident double gym non‐athletic $1,100 $1,100
h.Non‐resident double gym non‐athletic $1,350 $1,350
i.Carpet fee single gym ‐ resident & non‐resident $325 $325
j.Carpet fee double gym ‐ resident & non‐resident $650 $650
k.Classroom resident $35 $35
l.Classroom Non‐resident $40 $40
14. Birthday Party Packages:
a.Party package ‐ resident $65 $65
b.Party package ‐ non‐resident $75 $75
15. Facility Rental ‐ Neighborhood Center:
a.Meeting room ‐ resident $35 $35
b.Gymnasium ‐ resident $35 $35
c.Meeting room ‐ non‐resident $40 $40
d.Gymnasium ‐ non‐resident $40 $40
16. Farmer's Market
a.10x10 Lot $40 $40
b.Half Lot $20 $20
c.Application fee $30 $30
d.Electrical fee $5 $5
17. Reader Board
a.One day/day of event $110 $110
b.Two weeks prior to event $275 $275
SECTION VII. COMMUNITY CENTER PASS CARD & FEES 2021 2022
Fees and associated descriptions are published and available in the "Let's Go Renton" Recreation Guide.
Inflatable and big toy rate:
Note: Along with rental fee for the use of City facility for each inflatable or big toy, Applicant or Renter shall provide proof of
insurance naming the City of Renton as additional insured.
Open Space Area in the Parks (Cascade, Teasdale, Phillip Arnold, Cedar River, Earlington, Gene Coulon, Glencoe, Kennydale Lions,
Sunset, and Riverview Parks):
4
AGENDA ITEM # 8. a)
City of Renton Fee Schedule
2021‐2022
SECTION VIII. AIRPORT CHARGES 2021 2022
1.Airport Fuel Flow Charge: per gallon $0.08 $0.08
2.JetA Fuel Flow Charge: per gallon $0.10 $0.10
3.Transient airplane parking daily $8 $8
4.Hangar wait list, one time fee $100 $100
5.Tie‐down wait list, one time fee $25 $25
6.Lost gate card fee per occurrence $50 $50
7.T‐Hangar, Non‐Refundable Move‐in Fee $250 $250
8.Penalty for violation of Minimum Standards/Airport Rules & Regulations (each occurrence)$500 $500
9.Penalty for Movement Area Incursions (each occurrence), assessed to sponsor/tenant $500 $500
SECTION IX. ANIMAL LICENSES FEES* ‐ RMC 5‐4‐2 2021 2022
1.Altered Animal Annual License $30 $30
2.Unaltered Animal Annual License $50 $50
3.Economically Qualified Resident Special Lifetime License $0 $0
4.Duplicate Tag $10 $10
5.Late Charge $30 $30
SECTION X. BUSINESS LICENSES 2021 2022
1. General Business License:
a.Registration Fee $150 $150
b.Appeal of Business License Decision $250 $250
2. Penalties:
a.The penalty to reinstate an expired business license $50 $50
b.The penalty for failure to obtain a business license $250 $250
c.
SECTION XI. ADULT ENTERTAINMENT LICENSES 2021 2022
1. Every person applying for a adult entertainment license shall pay the applicable nonrefundable application fee:
a.Adult Entertainment Business License $750 $750
b.Entertainer $75 $75
c.Manager $75 $75
d.License Replacement $10 $10
2. Penalties:
a.Civil Penalty, per violation $1,000 $1,000
SECTION XII. DEVELOPMENT FEES 2021 2022
1. Building Fees:
a.Building and Demolition Permit Fees:1
(i) Base Fee/Valuation $1.00 to $500.00 $34 $34
(ii) Valuation $501.00 to $2,000.00 $34 + $3.83 x each $100 value $34 + $3.83 x each $100
value
(iii) Valuation $2001.00 to 25,000.00 $88.75 + $17.59 x each $1,000
value
$88.75 + $17.59 x each
$1,000 value
(iv) Valuation $25,001.00 to $50,000.00 $493.26 + $12.60 x each
$1,000 value
$493.26 + $12.60 x each
$1,000 value
(v) Valuation $50,001.00 to $100,000.00 $808.26 + $8.77 x each $1,000
value
$808.26 + $8.77 x each
$1,000 value
(vi) Valuation $100,001.00 to $500,000.00 $1,225.76 + $7.04 x each
$1,000 value
$1,225.76 + $7.04 x each
$1,000 value
(vii) Valuation $500,001.00 to $1,000,000.00 $4,039.76 + $5.93 x each
$1,000 value
$4,039.76 + $5.93 x each
$1,000 value
(viii) Valuation $1,000,001.00 and up $7,006.01 + $4.57 x each
$1,000 value
$7,006.01 + $4.57 x each
$1,000 value
b.Combination Building Permit Fees*1
(i) Plumbing up to 3,000 sq ft $256 $256
(ii) Plumbing over 3,000 sq ft $282 $282
(iii) Mechanical up to 3,000 sq ft $205 $205
(iv) Mechanical over 3,000 sq ft $231 $231
(v) Electrical up to 3,000 sq ft $231 $231
(vi) Electrical over 3,000 sq ft $282 $282
* Combination Building Permit fees are required for each new single family residential structure
c.Building Plan Check Fee1
(i) Initial Building Plan Check Fee*65% of permit fee 65% of permit fee
(ii) Additional Building Plan Check Fee 50% of initial plan Check Fee 50% of initial plan Check
Fee
d.Demolition Permit Fee:
(i)Residential $125 $125
(ii)Commercial $272 $272
e. d State Building Code Fee:
(i) Non‐residential projects:$25 $25
(ii) Residential projects:$6.50 $6.50
(1) Each additional unit after first unit:$2 $2
5%‐15%
* Building Plan Check Fee is in addition to the building permit fees, demolition permit fees, and combination building permit
fees. The plan check fee is equal to 65% of the building permit fee, or the demolition permit fee, or the combination
building permit fee. Includes three (3) review cycles.
5%‐15%
*Please note, impounded animals are subject to license fees, microchipping costs, and other out‐of‐pocket costs as specified in
RMC 6‐6‐2.
Failure to pay the license fee within one day after the day on which it is due and payable pursuant to subsection C7 of Chapter
5 of the RMC shall render the business enterprise subject to a penalty of (5%) of the amount of the license fee for the first
month of the delinquency and an additional penalty of (5%) for each succeeding month of delinquency, but not exceeding a
total penalty of (15%) of the amount of such license fee.
5
AGENDA ITEM # 8. a)
City of Renton Fee Schedule
2021‐2022
SECTION XII. DEVELOPMENT FEES (CONTINUED)2021 2022
1. Building Fees: (continued)
f.Electrical Permit Fees:
(i) Residential Fees ‐ Single ‐Family and Duplex
(1) New Service ‐ Single Family and Duplex1
(a) Up to 200 AMP $217 $217
(b) Over 200 AMP $231 $231
(2) Service Changes/New Circuits ‐ Single Family and Duplex:
(a) Change up to 200 AMP $169 $169
(b) Change over 200 AMP $179 $179
(c) Any new circuits added to above price is per each up to a maximum of $80.00 $21 $21
(d) Minimum fee for remodel/addition of new circuits without a service charge $169 $169
(e) Cooling system circuit for new or replaced appliance $75 $75
(ii) Multi‐Family, Commercial and Industrial Fees:
(1) Value of work:
$1.00 to $500.00 $66 $66
$500.01 to $1,000.00 $49 + 3.5% of
value
$49 + 3.5% of
value
$1,000.01 to 5,000.00 $86.10 + 3.05% of value $86.10 + 3.05% of value
$5,000.01 to $50,000.00 $245.70 + 1.8% of value $245.70 + 1.8% of value
$50,000.01 to $250,000.00 $1,183.35 + 1.05% of value $1,183.35 + 1.05% of
value
$250,000.01 to $1,000,000.00 $3,939.60 + 0.85% of value $3,939.60 + 0.85% of
value
$1,000,000.01 and up $12,759.60 + 0.47% of value $12,759.60 + 0.47% of
value
(iii) Temporary Electrical Services $169 $169
(iv) Miscellaneous Electrical Fees
(1) Job Trailers $169 $169
(2) Signs per each $169 $169
(3) Mobile Homes $169 $169
(4)50% of commercial fees
Minimum $169
50% of commercial fees
Minimum $169
g.House Moving* ‐ minimum per hour Inspection Fee:$154 $154
h.Inspection Fee For Condominium Conversions $154 on 1st unit / $21 each
add'l unit
$154 on 1st unit /
$21 each add'l unit
i.Manufactured/Mobile Home Installation Fees*:
(i) Within a manufactured home park $154 $154
(ii) Outside of a manufactured home park Building Permit Fees Building Permit Fees
j.Mechanical Permit Fees:1
(i) Residential ‐ Mechanical Permit base fee plus itemized fees below:$53 $53
(1)$21 $21
(2) Boiler or Compressor $21 $21
(3)$21 $21
(4) Ventilation/exhaust fan $21 $21
(5) Fuel Gas Piping (each gas piping system up to 6 outlets)$21 $21
(ii) Commercial or Multi‐Family ‐ Mechanical Permit base fee plus itemized fees below:$77 $77
(1)$36 $36
(2) Boiler or Compressor $77 $77
(3) Refrigeration System $77 $77
(4)$77 $77
(5) Incinerator: Installation or relocation of each $103 $103
(6)$36 $36
(7) Fuel Gas Piping (each gas piping system up to 6 outlets)$36 $36
k.Plumbing Permit Fees:1
(i) Residential ‐ Plumbing Permit base fee plus itemized fees below:$53 $53
(1)$10 $10
(2) Water Service: For meter to house $10 $10
(3) Per fixture for repair or alteration of drainage or vent piping $10 $10
(4) Per drain for rainwater systems $10 $10
(5) Per lawn sprinkler system, includes backflow prevention $10 $10
(6) Per vacuum breaker or backflow protection device on tanks, vats, etc.$10 $10
(7) Per interceptor for industrial waste pretreatment $10 $10
Per plumbing fixture (e.g., sink, shower, toilet, dishwasher, tub, etc.) or set of fixtures on one trap
Commercial Hood: Installation of each served by a mechanical exhaust, including the ducts for such hood each
Appliance or piece of equipment regulated by this code but not classed in other appliance categories, or for
which no other fee is listed in this code
Low Voltage Work (e.g., alarm systems; thermostats; computer, data, or phone lines; fiber optics, cable
television, etc.)
Exemption: Residential telephone communication systems, thermostats, security systems, and cable television installations are
exempt from fees
*This covers only the Building Section inspection of the structure prior to move. There is a separate additional fee charged
by the Public Works Department to cover the actual house move permit. A building permit is also required in order to site
the structure on the new site.
* Includes plan review and inspection fees for the foundation (electrical, plumbing, mechanical, sewer and water
connection fees are in addition to the below amounts).
Heating system (furnace, heat pump, suspended heater, fireplace, wood stove, etc.). A/C system (air
conditioner, chiller or Air Handling Unit (VAV) including ducts and vents)
Appliance or piece of equipment regulated by this code but not classed in other appliance categories, or for
which no other fee is listed in this code
Heating system (furnace, heat pump, suspended heater, fireplace, wood stove, etc.). A/C system (air
conditioner, chiller or Air Handling Unit (VAV) including ducts and vents)
6
AGENDA ITEM # 8. a)
City of Renton Fee Schedule
2021‐2022
SECTION XII. DEVELOPMENT FEES (CONTINUED)2021 2022
1. Building Fees: (continued)
(8) Fuel Gas Piping: (each gas piping system up to 6 outlets)$21 $21
(ii) Commercial or Multi‐Family: Plumbing Permit base fee plus itemized fees below:$77 $77
(1)Per plumbing fixture (e.g., sink, shower, toilet, dishwasher, tub, etc.) or set of fixtures on one trap $15 $15
(2) Water Service: For meter to building $15 $15
(3) Per fixture for repair or alteration of drainage or vent piping $15 $15
(4) Per drain for rainwater systems $15 $15
(5) Per lawn sprinkler system, includes backflow prevention $15 $15
(6) Per vacuum breaker or backflow protection device on tanks, vats, etc.$15 $15
(7) Per interceptor for industrial waste pretreatment $15 $15
(8) Fuel Gas Piping: (each gas piping system up to 6 outlets)$26 $26
(9) Medical Gas Piping: (each gas piping system up to 6 outlets)$77 $77
l.Sign Permit Fees:
(i) Permanent Signs:
(1) Roof, projecting, awning, canopy, marquee, and wall signs $256 $256
(2) Freestanding ground and pole signs $256 $256
(ii) Temporary and Portable Signs:
(1) Real Estate Directional Signs, pursuant to RMC 4‐4‐100J2, permit valid for a 12‐months period $77 $77
(2) Grand Opening Event Signs, pursuant to RMC 4‐4‐100J6d(i) $77 $77
(3) Event Signs, pursuant to RMC 4‐4‐100J6d(ii) and (iii) per sign, per promotion $51 $51
(4)$128 $128
(5) Commercial Property Real Estate Banner each sign permit is valid for 12 months.$77 $77
(6) Decorative Flags fee is per entrance and valid until flag(s) are removed $77 $77
m.Miscellaneous Fees:
(i) Inspection Fees:
(1) Minimum Housing Inspection $128 $128
(2) WABO ‐ Adult Family Home; Misc building inspection $128 $128
(3) Reinspection Fee; Misc building inspection $128 $128
(ii) Plan Review Fees:
(1) Electrical, Plumbing, or Mechanical Permits (percentage of permit fee)40% 40%
(2) Additional Plan Review Fees: Over three review cycles (percentage of plan review fee)50% 50%
(3) Miscellaneous Plan Review: hourly fee.$128/hr $128/hr
(iii)2 X Permit Fee 2 X Permit Fee
2. Land Use Review Fees:
a.General Land Use Review:
(i) Additional Animals Permit $50 $50
(ii) Address Change $105 $105
(iii) Annexation:
(1) Less than 10 acres $5,250 $5,250
(2) 10 acres or more $5,250 $5,250
(iv) Appeal of:
(1) Hearing Examiner's Decision $500 $500
(2) Administrative Decision $500 $500
(3) Environmental Decision $500 $500
(v) Binding Site Plan (total fee for both preliminary and final phases)$5,280 $5,280
(vi) Code Text Amendment N/C N/C
(vii) Comprehensive Plan Map or Text Amendment (each)$5,250 $5,250
(viii) Conditional Use Permit:
(1) HEX $3,300 $3,300
(2) Administrative $1,600 $1,600
(3) Revision (minor, administrative) 50% of Application Fee 50% of Application Fee
(4) Revision (major)Application Fee Application Fee
(ix) Critical Areas Exemption N/C N/C
(x) Critical Areas Permit $1,250 $1,250
(xi)100% of 100% of
contract cost contract cost
(xii) Development Agreement $10,000 $10,000
(xiii)100% of cost 100% of cost
(xiv) Environmental Checklist Review $1,600 $1,600
(xv) Environmental (SEPA) Addendum $1,600 $1,600
(xvi) Fence Permit (special)$160 $160
(xvii) Grading and Filling Permit (Hearing Examiner)$5,410 $5,410
(xviii) Landscape Review Fee $160 $160
(xix) Legal Lot Segregation N/C N/C
(xx) Lot Consolidation $510 $510
(xxi) Lot Line Adjustment $1,090 $1,090
(xxii)Manufactured/Mobile Home Park:
(1) Tentative $1,090 $1,090
(2) Preliminary $3,250 $3,250
(3) Final $1,600 $1,600
(xxiii)Open Space Classification Request $155 $155
(xxiv) Plats:
(1) Preliminary Short Plat $5,410 $5,410
(2) Final Short Plat $2,705 $2,705
(3) Preliminary Plat $10,830 $10,830
A‐Frame Signs, pursuant to RMC 4‐4‐100J5 Charge is for the first sign, all subsequent signs are $50.00
Work commencing before permit Issuance: Where work for which the permit is required is started prior to obtaining
the permit, a special investigation fee in an amount equal to twice the permit fee shall be charged. The special
investigation fee shall be paid in addition to the required permit fees.
1 Per Res. 4422, fees for an Accessory Dwelling Unit (ADU) will be waived as of the adoption date of Res. 4422, through December 31, 2022.
Critical Areas Review Fee: for those projects that propose impacts to critical areas and will be billed at the cost of
contract biologist’s review.1
Environmental Impact Statement Cost include the coordination, review and appeal. Draft and Final2
7
AGENDA ITEM # 8. a)
City of Renton Fee Schedule
2021‐2022
SECTION XII. DEVELOPMENT FEES (CONTINUED)2021 2022
2. Land Use Review Fees: (Continued)
(4) Final Plat $5,410 $5,410
(5) Minor Plat Amendment 50% of Application Fee 50% of Application Fee
(6) Major Plat Amendment Application Fee Application Fee
(xxv) Planned Urban Development:
(1) Preliminary Plan $5,410 $5,410
(2) Final Plan $2,700 $2,700
(xxvi) Reasonable Use Exception:
(a) In conjunction with land use permit $510 $510
(b) Stand alone $1,540 $1,540
(xxvii) Public Arts Exemption N/C N/C
(xxviii) Rezone $5,250 $5,250
(xxix) Routine Vegetation Management Permit without Critical Areas $105 $105
(xxx) Shoreline‐Related Permits:
(1) Shoreline Permit Exemption N/C N/C
(2) Substantial Development Permit $2,700 $2,700
(3) Conditional Use Permit $3,250 $3,250
(4) Variance $3,250 $3,250
(xxxi) Site Development Plan (Site Plan or Master Plan
which includes design review fee for projects subject to RMC 4‐3‐100):
(1) Hearing Examiner Review $3,800 $3,800
(2) Administrative Review $2,700 $2,700
(3) Modification (minor, administrative)
50% of current site
plan review fee
50% of current site
plan review fee
(4)Application Application
Fees Fees
(xxxii) Small Cell Permit, per site3 $510 $510
(xxxiii) Special Permit (Hearing Examiner) $2,700 $2,700
(xxxiv) Street Naming (Honorary)
(1) Application $250 $250
(2) Installation $250 $250
(xxxv) Temporary Use Permits:
(1) Tier 1 $105 $105
(2) Tier 2 $205 $205
(xxxvi) Variance (per each variance requested) Administrative or Hearing Examiner $1,330 $1,330
(xxxvii) Waiver or Modification of Code Requirements cost is per request $260 $260
(xxxviii) Zoning Compliance Letter $480 $480
b.Miscellaneous Fees:
(i) Permit review staff overtime (applies only if permit review is requested by the applicant to be performed $175/hr 175/hr
on Saturdays, Sundays, observed City of Renton holidays, and non‐holiday Monday‐Fridays outside of the
hours of city staff regular work schedule)
c.
3. Public Works Fees:
a.Franchise Application Fee1 $5,000 $5,000
b.Franchise Permit Fees: 1,2
(i) (1) Small work, including trenching less than 60 linear feet or installation of 6 or less utility poles $600 $600
$600 $600
(3) Other public agencies constructing utilities within City right‐of‐way $600 $600
(ii) Master Lease Agreement including Site License Addendum, Small Cell Only
(1) Master Lease Agreement Administrative Costs, $100 per staff hour Actual cost Actual cost
(2) Pole Reservation, per pole $120 $120
(3) Administrative Fee, $100 per staff hour and/or cost of materials $760 deposit + $760 deposit +
time and materials time and materials
(i)
(a) Tier 1, Daily peak kWh <20 $715.38 $715.38
(b) Tier 2, Daily peak kWh 21 ‐ 40 $1,430.76 $1,430.76
If a franchise agreement does not specify the fee amount, the generic fee, as identified in the following table, shall be collected:
(2) All other work, permit fee plus $60 per hour of inspection applied during regular inspection hours, overtime
inspection rates apply thereafter
(4) Public Reimbursement (any costs incurred by the City on behalf of the permit applicant for installation or
operation of site equipment)
Modification (major) required new application and repayment of fee required
Exception for Projects Vested in the County: For those projects that have vested to a land use permit under the development
regulations of King County, the King County Land Use Review Fee Schedule shall apply, and is hereby adopted by reference. A
copy of that fee schedule has been filed with the City Clerk and is available at the City Clerk’s office for public review.
1Per RMC 4‐3‐050F7, the City may charge and collect fees from any applicant to cover costs incurred by the City in review of plans, studies, monitoring reports and other documents related to
evaluation of impacts to or hazards from critical areas and subsequent code‐required monitoring.
2When the City is the lead agency for a proposal requiring an Environmental Impact Statement (EIS) and the Environmental Review Committee (ERC) determines that the EIS shall be prepared,
the City may charge and collect a reasonable fee from any applicant to cover costs incurred by the City in preparing the EIS. The ERC shall advise the applicant(s) of the projected costs for the
EIS prior to actual preparation; the applicant shall post bond or otherwise ensure payment of such costs. The ERC may determine that the City will contract directly with a consultant for
preparation of an EIS, or a portion of the EIS, and may bill such costs and expenses directly to the applicant. Such consultants shall be selected by mutual agreement of the City and applicant
after a call for proposals. If a proposal is modified so that an EIS is no longer required, the ERC shall refund any fees collected under this subsection which remain after incurred costs are paid.
The City may collect a reasonable fee from an applicant to cover the cost of meeting the public notice requirements of this Title relating to the applicant’s proposal. The City shall not collect a
fee for performing its duties as a consulted agency. The City may charge any person for copies of any document prepared under this Title, and for mailing the document, in a manner provided
by chapter 42.17 RCW.
3Prior to issuance of a small cell permit, the applicant shall pay the actual administrative expenses incurred by the City that are directly related to the City's review of the application, including
plan inspection, and approval, as authorized by RCW 35.21.860(1)(b), as may be amended.
1The fixed application fee established herein is intended to cover the City’s internal administrative costs in processing and administering the franchise. In addition to the fixed application
fee, the City may require applicants to either directly pay or reimburse the City for external costs reasonably incurred to process the application and/or administer the franchise
agreement. The City may require applicants to deposit funds in advance to cover legal and/or other professional services fees as they are incurred.
Electrical service (annual fee)
8
AGENDA ITEM # 8. a)
City of Renton Fee Schedule
2021‐2022
SECTION XII. DEVELOPMENT FEES (CONTINUED)2021 2022
b.Franchise Permit Fees (continued):
(c) Tier 3, Daily peak kWh 41 ‐ 60 $2,146.14 $2,146.14
(d) Tier 4, Daily peak kWh 61 ‐ 80 $2,861.51 $2,861.51
(e) Tier 5, Daily peak kWh >81 $3,576.89 $3,576.89
(ii)Actual cost Actual cost
(5) All other fees, $100 per staff hour and/or cost of materials Actual cost Actual cost
(iii)
(1)$10.00 $10.00
(2)$20.00 $20.00
(3)$30.00 $30.00
1Bond required pursuant to RMC 9‐10‐5
c.Latecomers' Agreement Application Fees:
(i) Processing fee1 (Nonrefundable)
(1) If amount covered by latecomers’ is $50,000 or less $1,000 $1,000
(2) If amount covered by latecomers' is between $50,000 and $200,000 $2,000 $2,000
(3) If amount covered by latecomers' is greater than $200,000 $4,000 $4,000
(ii) Latecomers' Agreement – Administration and collection fee
(1) if amount covered by latecomers' is $50,000 or less 15% of total 15% of total
(2) If amount covered by latecomers' is between $50,000 and $200,000 10% of total 10% of total
(3) If amount covered by latecomers' is greater than $200,000 5% of total 5% of total
(iii) Segregation processing fee, if applicable $750 $750
d.System Development Charge Tables:
(i) Water and Wastewater System Development Charges:
(1) 5/8 x 3/4 inch and 1 inch:
(a) Water service fee3 $4,450 $4,500
(b) Fire service fee 1,2 $594 $601
(c) Wastewater fee3 $3,450 $3,500
(2) 1‐1/2 inch:
(a) Water service fee3 $22,250 $22,500
(b) Fire service fee 1,2 $2,971 $3,005
(c) Wastewater fee3 $17,250 $17,500
(3) 2 inch:
(a) Water service fee3 $35,600 $36,000
(b) Fire service fee 1,2 $4,754 $4,807
(c) Wastewater fee3 $27,600 $28,000
(4) 3 inch:
(a) Water service fee3 $71,200 $72,000
(b) Fire service fee 1,2 $9,508 $9,615
(c) Wastewater fee3 $55,200 $56,000
(5) 4 inch:
(a) Water service fee3 $111,250 $112,500
(b) Fire service fee 1,2 $14,856 $15,023
(c) Wastewater fee3 $86,250 $87,500
(6) 6 inch:
(a) Water service fee3 $222,500 $225,000
(b) Fire service fee 1,2 $29,712 $30,046
(c) Wastewater fee3 $172,500 $175,000
(7) 8 inch:
(a) Water service fee3 $356,000 $360,000
(b) Fire service fee 1,2 $47,539 $48,073
(c) Wastewater fee3 $276,000 $280,000
(ii) Storm Water System Development Charges:
(1) New single family residence (including mobile/manufactured homes)3 $2,000 $2,100
(2)
(3)$0.800 $0.084
per sq foot per sq foot
e.Administrative Fees for SDC Segregation Request1 $750 + administrative costs $750 + administrative
costs
f.
(i) Water Construction Permit Fees:
(1) Water meter tests for 3/4” to 2" meter1 $50 $50
(a) Water meter tests on meters 2" or larger $60 deposit + time and
materials
$60 deposit + time and
materials
Tier 1, conduit in existing planter strips
Tier 3, conduit within signalized intersection crossings, bridges and train tracks
Tier 2, conduit outside of planter strips excluding signalized intersection crossings, bridges and train tracks
Public Works Construction Permit Fees:
$0.840 per sq foot
All other uses charge per square foot of new impervious surface, but not less than $2,000 (2021) or $2,100
(2022)
1 Based upon the size of the fire service (NOT detector bypass meter)
2 Unless a separate fire service is provided, the system development charge(s) shall be based upon the size of the meter installed and a separate fire service fee will not be charged.
3Per Res. 4422, utility system development charges (hookup fees) for an Accessory Dwelling Unit (ADU) will be reduced by 50% as of the adoption date of Res. 4422, through December 31,
2022.
1The applicant shall pay the City’s administrative costs for the preparation, processing and recording of the partial payment of the fee(s). If the same segregation is used for more than one
utility’s special assessment district, and/or latecomer’s charge, then only one administrative fee is collected.
2The City may decide to contract with a consultant to perform plan reviews and inspections and may bill such costs and expenses directly to the applicant.
1The administration and collection fee is deducted from each individual latecomer fee payment and the balance forwarded to the holder of the latecomer’s agreement pursuant to RMC 9‐
5, Tender of Fee.
Addition to existing single family residence greater than 500 square feet (including mobile/manufactured homes
Fee not to exceed $2,000 (2021) or $2,100 (2022)
$0.800 per sq foot
Conduit Lease Rates per Lineal Foot (annual fee):
All other reimbursement
9
AGENDA ITEM # 8. a)
City of Renton Fee Schedule
2021‐2022
SECTION XII. DEVELOPMENT FEES (CONTINUED)2021 2022
3. Public Works Fees: (continued)
(b) Open and close fire hydrants for fire flow tests conducted by others. Time and materials Time and materials
(c) Water service disconnection (cut at main)$275 $275
(d) Meter resets $95 $95
(e) Repair of damage to service $250 $250
(f) Water main connections $560 $560
(g) Water main cut and cap $1,025 $1,025
(h) Water quality/inspection/purity tests $80 $80
(i) Specialty water tests (lead, copper, etc) Cost of test + $70 processing
fee
Cost of test + $70
processing fee
(j) Water turn ons/offs after hours $185 $185
(k) Installation of isolation valve. $2,000 deposit + time and
materials
$2,000 deposit + time and
materials
f.
(l)$250 + $0.15 $250 + $0.15
per lineal per lineal
foot foot
(m) Miscellaneous water installation fees. Time and materials Time and materials
(n) Service size reductions $50 $50
(o) Installation fees for ring and cover castings $200 $200
(2) Water meter installation fees – City installed:2
(a) 3/4” meter installed by City within City limits. Installation of stub service and meter setter only.$2,875 $2,875
(i) 3/4" meter drop in only $400 $400
(b) 3/4” meter installed by City outside City limits. Installation of stub service and meter setter only.$2,935 $2,935
(i) 3/4" meter drop in only $400 $400
(c) 1” meter installed by the City. Installation of stub service and meter setter only.$2,875 $2,875
(i) 1" meter drop in only $460 $460
(d) 1‐1/2" meter installed by the City. Installation of stub service and meter setter only.$4,605 $4,605
(i) 1‐1/2” meter drop in only $750 $750
(e) 2” meter installed by the City. Installation of stub service and meter setter only.$4,735 $4,735
(i) 2" meter drop in only $950 $950
(3)$220 $220
(4) Hydrant Meter fees:1
(a) Hydrant meter permit fee $50 $50
(b) Deposits:
(i) 3/4” meter and backflow prevention assembly.$500 $500
(ii) 3” meter and backflow prevention assembly.$2,000 $2,000
(iii) Deposit processing charge, nonrefundable.$25 $25
(c) Meter rental (begins on day of pickup):
(i) 3/4” meter and backflow prevention assembly. Per month.$50 $50
(ii) 3” meter and backflow prevention assembly. Per month.$250 $250
(ii) Wastewater and Surface Water Construction Permit Fees:1
(1) Residential:
(a) Wastewater permit fee $375 $375
(b) Surface water permit fee $375 $375
(2) Commercial:
(a) Wastewater permit fee $375 $375
(b) Surface water permit fee $375 $375
(3) Industrial:
(a) Wastewater permit fee $375 $375
(b) Surface water permit fee $375 $375
(4) Repair of any of the above
(a) Wastewater permit fee $375 $375
(b) Surface water permit fee $375 $375
(5) Cut and cap/Demolition permit:
(a) Wastewater permit fee $375 $375
(b) Surface water permit fee $375 $375
(6)$375 $375
(7)$375 $375
plus King County plus King County
sewer rate sewer rate
on discharged on discharged
amount amount
(iii) Right‐of‐way Permit Fees:
(1) Single family residence $325 $325
(2) All other uses, excluding those listed $625 $625
(3) Wastewater or storm water service $375 $375
(4) King County ROW Permits/Inspections:
(a) Service Installation Only $1,025 $1,025
(b) Utility Extension per 100' of Length (Min 200' Length)$1,025 $1,025
Ground water discharge (temporary connection to wastewater system for discharge of contaminated ground
water over 50,000 gallons) Rate plus billed for current Renton and King County sewer rate on discharged amount
(meter provided by property owner)
Work in right‐of‐way – construction permit: Utility and street/sidewalk improvements, excluding utilities from other
public agencies which shall be considered under a franchise permit. A bond is required, as stipulated in RMC 9‐10‐5,
Street Excavation Bond.
New water line chlorination fee. Fee plus $0.15 per lineal foot for any footage after
the first two hundred fifty (250) lineal feet
Water meter processing fees – Applicant installed: For meters larger than 2”, the applicant must provide materials and
installs.1
Public Works Construction Permit Fees: (continued)
Reinspection for Wastewater or Surface Water Permits
10
AGENDA ITEM # 8. a)
City of Renton Fee Schedule
2021‐2022
SECTION XII. DEVELOPMENT FEES (CONTINUED)2021 2022
3. Public Works Fees: (continued)
(5)
(iv)$525 $525
(v)
(1) Standard locate $500 $500
(2) Large project locate $1,000 $1,000
g.
(i)
(1) $150,000.00 or less 6% of cost 6% of cost
(2) Over $150,000.00 but less than $300,000.00. $9,000 + 5% over $150,000 $9,000 + 5% over
$150,000
(3) $300,000.00 and over. $16,500 + 4% over $300,000 $16,500 + 4% over
$300,000
(ii)Standard or minor drainage adjustment review $550 $550
h. Grade and Fill License Fees: Fees shall be based on the highest tier triggered.
Grade and Fill Quantity New or Replaced Hard Surface
Tier
< 50 cy < 2,000 sf 0
50 cy ‐ 499 cy 2,000 sf ‐ 4,999 sf 1
500 cy ‐ 4,999 cy 5,000 sf ‐ < 1 ac 2
5,000 cy ‐ 49,999 cy 1 ac ‐ < 2.5 ac 3
50,000 cy ‐ 99,999 cy 2.5 ac ‐ < 5 ac 4
100,000 cy and larger 5 ac and larger 5
(i) Review/Intake Fee:
(1) Tier 0 (no permit required)N/A N/A
(2) Tier 1 $466 $466
(3) Tier 2 $621 $621
(4) Tier 3 $932 $932
(5) Tier 4 $1,242 $1,242
(6) Tier 5 $1,553 $1,553
(ii) Inspection/Issuance Fee:
(1) Tier 0 (no permit required)N/A N/A
(2) Tier 1 $444 $444
(3) Tier 2 $887 $887
(4) Tier 3 $1,183 $1,183
(5) Tier 4 $2,366 $2,366
(6) Tier 5 $3,550 $3,550
(iii) Solid Waste Fills:1.5 x plan 1.5 x plan
check fee check fee
(iv) Annual Licenses of Solid Waste Fills: 1.5 x plan 1.5 x plan
check fee check fee
i.
(i) Filing fee $250 $250
(ii) Processing fee $250 $250
j.
(i) Single family and two family uses annually, fee assesed annually plus leasehold excise tax1 if applicable $10.00 + LET1 $10.00 + LET1
(ii)0.5% x Value2 + LET1 0.5% x Value2 + LET1
(iii)Uses with public benefit fee is a per year of assessed value of land adjoining the property, plus leasehold excise tax1, if
applicable. In no case less than $10.00.
0.5% x Value2 + LET1 0.5% x Value2 + LET1
5 ac and larger
The plan check fee for solid waste fills shall be one and one‐half (1‐1/2) times the plan checking fees listed above. The
fee for a grading license authorizing additional work to that under a valid license shall be the difference between the
fee paid for the original license and the fee shown for the entire project.
The fee for annual licenses for solid waste fills shall be one and one‐half (1‐1/2) times the plan checking fees listed
above. The fee for a grading license authorizing additional work to that under a valid license shall be the difference
between the fee paid for the original license and the fee shown for the entire project. Any unused fee may be carried
forward to the next year. If any work is done before the license is issued, the grading license fee shall be doubled.
Release of easement fees: The imposition, collection, payment and other specifics concerning this charge are detailed in
chapter 9‐1 RMC, Easements.
Revocable Right‐of‐way Permit Fees:
All uses without public benefit fee is a per month charge assessed annually based on property value2 of land to be
utilized, plus leasehold excise tax1, if applicable.
Cleared or Disturbed
Area
< 7,000 sf
7,000 sf ‐ < 3/4 acre
3/4 ac ‐ < 1 ac
1 ac ‐ < 2.5 ac
2.5 ac ‐ < 5 ac
2Per Res. 4422, water meter installation fees for an Accessory Dwelling Unit (ADU) will be reduced by 50% as of the adoption date of Res. 4422, through December 31, 2022.
Public works plan review and inspection fees1,3: All developers, municipal or quasi‐municipal entities, or utility corporations or
companies, except those specifically exempted, shall pay fees under this Section. Exempted entities include City‐franchised
cable TV, cable modem, natural gas, telecommunications, and electrical power. The fee will be based upon percentages of the
estimated cost of improvements using the following formula.
Street and utility plan review and inspection fees; estimated construction cost2: The applicant must submit separate,
itemized cost estimates for each item of improvement subject to the approval by the Public Works Plan Review
Section.
1Includes three (3) review cycles. Additional reviews will be charged $1,500 each.
2Construction cost shall be based on the City's bond quantity worksheet and shall include all project related improvements outside of the building envelopes, including, but not limited to,
all costs required to construct the following: paved parking lots, private sidewalks or walkways; private and public storm water management facilities; temporary erosion and
sedimentation control facilities; water quality facilities; public and private streets; public and private sanitary sewers; public water main improvements; required off‐site street, bike and
pedestrian improvements; street lighting improvements; required landscaping and street tree improvements; and site grading and mobilization costs.
3If deemed necessary by the City in its sole discretion, the City will contract with one or more consultants to provide plan reviews and/or inspections with the related costs and expenses
payable by the applicant.
Exception: No permit fee shall be charged for individual homeowners for work in street rights‐of‐way for street
tree or parking strip irrigation systems or work associated with City of Renton capital improvement projects or
City funded projects. No permit fee shall be charged for moving pods or moving trucks in the right‐of‐way
provided that they are in the right‐of‐way for no more than three (3) days. No permit fee shall be charged for
use of the right‐of‐way in the CD zone, provided ground disturbing activity is not proposed.
Street light system fee, per new connection to power system
Utility Locate Refresh Fee (Fee is due each time excavator calls in for locate refresh during 45‐day locate ticket)
1Per Res. 4422, fees for an Accessory Dwelling Unit (ADU) will be waived as of the adoption date of Res. 4422, through December 31, 2022.
11
AGENDA ITEM # 8. a)
City of Renton Fee Schedule
2021‐2022
SECTION XII. DEVELOPMENT FEES (CONTINUED)2021 2022
3. Public Works Fees: (continued)
(iv) Insurance Required:
(v) Exception for Public Agencies:
2Right‐of‐way value shall be based on the assessed value of the land adjoining the property as established by the King County Assessor
k.
(i) Filing fee $500 $500
(ii)
Appraised Value of Vacated right‐of‐way:
(1) Less than $25,000 $750 $750
(2) $25,000 to $75,000 $1,250 $1,250
(3) Over $75,000 $2,000 $2,000
l.
(i)
(ii)
(iii)
m.Water or Sewer ‐ Redevelopment:
(i) Fee(s) based upon meter(s) proposed for final project minus fee(s) based upon meter existing on site.
n.Miscellaneous Fees:
(i) Re‐inspection Fee $128 $128
(ii) Plan Revision following Permit Issuance:
(1)$250 $250
(2)$1,500 $1,500
(iii) Street Frontage Improvements Fee‐In‐Lieu:
(1) Street with existing storm drainage main line $113/LF $113/LF
(2) Street with existing conveyance ditch $128/LF $128/LF
(iv)$125/hr $125/hr
(v)$175/hr $175/hr
(vi)Actual cost Actual cost
4. Technology Surcharge Fee
5.0% 5.0%
5. Impact Fees:
a. School Impact Fees:
(i) Issaquah School District
(1) Single Family Fee $18,213 $18,213
(2) Multi Family, Duplex, & Accessory Dwelling Fee (ADU)$12,043 $12,043
(ii) Kent School District
(1) Single Family Fee $5,692.85 $5,692.85
(2) Multi Family, Duplex, & Accessory Dwelling Fee (ADU)$2,404.63 $2,404.63
(iii) Renton School District1
(1) Single Family Fee $7,681 $7,681
(2) Multi Family, Duplex, & Accessory Dwelling Fee (ADU)$4,989 $4,989
(iv) School Impact Fee Administration 5% x School Impact Fee 5% x School Impact Fee
b. Transportation Impact Fees:1
(i) Light Industrial, per sq foot $9.50 $9.50
(ii)Apartment, per dwelling & Accessory Dwelling Unit (ADU) $6,717.10 $6,717.10
(iii) Church, per sq foot $5.36 $5.36
After hours inspection (applies to inspections performed on Saturdays, Sundays, observed City of Renton holidays,
and non‐holiday Monday‐Fridays outside the hours of 7:00am to 3:30pm)
Permit review staff overtime (applies only if permit review is requested by the applicant to be performed on
Saturdays, Sundays, observed City of Renton holidays, and non‐holiday Monday‐Fridays outside of the hours of city
staff regular work schedule)
Public Works Reimbursement (any work performed by City forces or under City contract on behalf of a permit
applicant to repair damage to the City infrastructure caused by the permit applicant or contractor under its control,
or any and all roadway or right‐of‐way cleanup efforts performed by City forces or under City contract that resulted
from the work performed by the permit applicant or contractors under its control.
An additional technology surcharge shall be required for all fees included in the following Subsections of Section XII, Development
Fees, of the City of Renton Fee Schedule Brochure: Subsection 1, Building Fees; Subsection 2, Land Use Review Fees, except for
appeals, critical areas review fee, and direct EIS costs; Subsections b, e, f, g and h of subsection 3, Public Works Fees; and Section XIII,
Fire Department Fire Marshall Fees
1Fee shall be paid annually (non‐prorated), and shall be nonrefundable, nontransferable (from one portion of the property to another) and shall not constitute a credit to the system
development charge due at the time of permanent use of the utility system. The application for temporary connection shall consist of a detailed plan and a boundary line of the proposed
development service area for use in the fee determination.
Credit for existing water or sewer service: Any parcel that currently has water and or sewer service is eligible for a prorated
system development charge.
Minor (Results in a change 10% or less than the cost of construction based on the City's bond quantity
worksheet. Excludes minor adjustments that are approved by the City to be shown on record drawings.)
Major (Results in a change of greater than 10% of the cost of construction based on the City's bond quantity
worksheet.)
Water Fee; Annual fee equal to thirty percent (30%) of the current system development charge applicable to the size
of the temporary water meter(s).1
Wastewater Fee; Annual fee equal to thirty percent (30%) of the current system development charge applicable to
the size of the temporary domestic water meter(s).1
30% of system development
charge
30% of system
development charge
30% of system development
charge
30% of system
development charge
1There is hereby levied and shall be collected a leasehold excise tax on that act or privilege of occupying or using public owned real or personal property through a leasehold interest at the
rate established by the State of Washington
Street and Alley vacation Fees: The imposition, collection, payment and other specifics concerning this charge are detailed in
chapter 9‐14 RMC, Vacations.
Processing and completion fee, payable upon Council approval of the vacation and upon administrative
determination of appraised value of vacated right‐of‐way.
Temporary connections to a City utility system may be granted for a one‐time, temporary, short‐term use of a portion of the
property for a period not to exceed three (3) consecutive years:
Storm Water Fee; Fee equal to thirty percent (30%) of the current system development charge applicable to that
portion of the property.1
30% of system development
charge
30% of system
development charge
Public Liability and property damage insurance is also required pursuant to RMC 9‐2‐5B, Minimum Permit
Requirements for Excess Right‐of‐Way Use.
a no‐fee permit may be issued only when the applicant is a public agency and when the proposed use of the right‐of‐
way provides a direct service to the public (e.g., Metro applications for right‐of‐way for bus shelters).
12
AGENDA ITEM # 8. a)
City of Renton Fee Schedule
2021‐2022
SECTION XII. DEVELOPMENT FEES (CONTINUED)2021 2022
5. Impact Fees: (continued)
(iv)Coffee/Donut Shop, no drive up, per sq foot $221.09 $221.09
(v)Coffee/Donut Shop, with drive up, per sq foot $232.24 $232.24
(vi) Condominium & Duplexes per dwelling $5,645.22 $5,645.22
(vii)Convenience market ‐ 24 hour, per sq foot $221.81 $221.81
(viii)Daycare, per sq foot $48.88 $48.88
(ix)Drinking Place, per sq foot $61.53 $61.53
(x)Drive‐in bank, per sq foot $139.77 $139.77
(xi)Fast food, no drive‐up, per sq foot $141.85 $141.85
(xii) Fast food, with drive‐up, per sq foot $180.72 $180.72
(xiii)Gas station with convenience store, per pump $65,313.08 $65,313.08
(xiv)Gas station, per pump $87,322.30 $87,322.30
(xv) General office, per sq foot $14.58 $14.58
(xvi)Health/fitness club, per sq foot $36.02 $36.02
(xvii) Hospital, per sq foot $7.79 $7.79
(xviii)Hotel, per room $4,287.51 $4,287.51
(xix) Manufacturing, per sq foot $7.15 $7.15
(xx)Marina, per boat berth $2,286.67 $2,286.67
(xxi) Medical office, per sq foot $32.94 $32.94
(xxii) Mini‐warehouse, per sq foot $2.57 $2.57
(xxiii)Mobile home, per dwelling $6,431.27 $6,431.27
(xxiv) Motel, per room $3,930.22 $3,930.22
(xxv)Movie theater, per seat $643.13 $643.13
(xxvi)Nursing home, per bed $1,786.46 $1,786.46
(xxvii) Restaurant: sit‐down, per sq foot $60.95 $60.95
(xxviii)Senior housing ‐ attached, per dwelling $2,929.80 $2,929.80
(xxix) Shopping center, per sq foot $26.58 $26.58
(xxx)Single family house, per dwelling $10,861.69 $10,861.69
(xxxi) Supermarket, per sq foot $65.81 $65.81
(xxxii) Net New PM Peak Hour Vehicle Trip (Proposed ‐ Existing), per PM Peak Hour Vehicle Trip $7,145.85 $7,145.85
c.Park Impact Fees:1
(i) Single family $2,914.99 $2,914.99
(ii) Multi‐family: 2 units, Duplexes, & Accessory Swelling Unit (ADU) $2,366.28 $2,366.28
(iii) Multi‐family: 3 or 4 units $2,251.97 $2,251.97
(iv) Multi‐family: 5 or more units $1,977.62 $1,977.62
(v) Mobile home $2,069.07 $2,069.07
d.Fire Impact Fees1:
(i) Residential ‐ single family (detached dwellings & duplexes), per dwelling unit $829.77 $829.77
(ii) Residential ‐ multi family & Accessory Dwelling Unit (ADU), per dwelling unit $964.53 $964.53
(iii) Hotel/motel/resort, per sq foot $1.29 $1.29
(iv) Medical care hook $3.92 $3.92
(v) Office, per sq foot $0.26 $0.26
(vi) Medical/dental office, per sq foot $1.99 $1.99
(vii) Retail, per sq foot $1.25 $1.25
(viii) Leisure facilities, per sq foot $2.36 $2.36
(ix) Restaurant/lounge, per sq foot $5.92 $5.92
(x) Industrial/manufacturing, per sq foot $0.15 $0.15
(xi) Church, per sq foot $0.56 $0.56
(xii) Education, per sq foot $0.72 $0.72
(xiii) Special public facilities, per sq foot $4.48 $4.48
*(i)‐(ii) is per unit
*(iii)‐(xiii) is per square foot
e.Independent Fee Calculation Review (or unless otherwise established by School District or Renton Regional Fire Authority)$500 $500
f.Impact Fee Deferral Administration:
(i) Each Lot, Single Family Dwelling, or Condominium $85 $85
(ii) Each Multi‐family Building $85 $85
6. Miscellaneous Fees
a.Multifamily Tax Exemption Application $1,000.00 $1,000.00
b.Tree Fee in lieu (per diameter inch measured at 4.5 feet above grade)$225.00 $225.00
SECTION XIII. FIRE DEPARMENT FIRE MARSHAL FEES (RFA)2021 2022
a.Fire plan review and inspection fees:
(i) $0 to $249.99 $35 $35
(ii) $250.00 to $999.99 $35 + 2%
of the cost
$35 + 2%
of the cost
(iii) $1,000.00 to $4,999.99 $60 + 2%
of the cost
$60 + 2%
of the cost
(iv) $5,000.00 to $49,999.99 $175 + 1.5%
of the cost
$175 + 1.5%
of the cost
(v) $50,000.00 to $99,999.99 $400 + 1.2%
of the cost
$400 + 1.2%
of the cost
(vi) $100,000.00 and above $900 + .75%
of the cost
$900 + .75%
of the cost
(vii)$125 $125
(viii) Violation/Second Re‐Inspection after 30‐day period (whenever 30 days or more have passed since Fire Department
notification of a violation, which required a first re‐inspection, and such violation has not been remedied or granted
an extension)
$150 $150
1 Per Res. 4422, fees for an Accessory Dwelling Unit (ADU) will be waived as of the adoption date of Res. 4422, through December 31, 2022.
Construction Re‐inspection. Fee is per hour with a 2 hour minimum. The minimum may be assessed if the requested
inspection does not meet the approval of the inspector.
13
AGENDA ITEM # 8. a)
City of Renton Fee Schedule
2021‐2022
SECTION XIII. FIRE DEPARMENT FIRE MARSHAL FEES (RFA) (CONTINUED)2021 2022
(ix)
(x) Preventable Fire alarm fee:
(1) First, second, and third preventable alarms N/C N/C
(2) Fourth and fifth preventable alarms in a calendar year, fee is per each alarm.$75 $75
(3)$150 $150
(xi) Late Payment Penalty $35 $35
b.Fire Permit type:
(i)$100 $100
(ii) Permits for Mobile food facilities that have passed a fire and life safety inspection in another jurisdiction that $50 $50
has reciprocity with Renton RFA
(iii) Hazardous materials and HPM facilities yearly $175 $175
(iv) Construction permit:
(v) Replacement for lost permit, per each $35 $35
(vi)
(vii) Underground tank removal permit (commercial)See Fire plan review and
construction permit fees
See Fire plan review and
construction permit fees
(viii) Underground tank removal or abandonment‐in‐ place permit (residential)$84 $84
(ix)$125 $125
(x) NSF check fees $25 $25
(xi)3% 3%
Other requested inspection when not required by the fire code. Fee is per hour with a minimum 1 hr when approved
by the Fire Marshal, such as home daycares
RFA technology surcharge fee applied to Fire Department Fire Marshal Fees, subsection a. (i, ii, iii, iv, v, vi) and
subsection b. (iii)
20% of plan review fee ‐ Min.
$52
20% of plan review fee ‐
Min. $52
Hazardous production materials permit (for businesses storing, handling, or using hazardous production materials as
regulated in the fire code) permit is yearly
$175 $175
Sixth preventable alarm and successive preventable alarms in a calendar year, fee is per each alarm.
Operational fire code permit (issued in accordance with Section 105.6 of the IFC) fee is yearly (includes items such as
fire special events, covered stages, mobile food facilities, hot works, etc.)
Third Re‐Inspection/Pre‐Citation Follow‐Up Inspection when re‐inspections are required beyond the first and second
re‐inspections
$250 $250
14
AGENDA ITEM # 8. a)
1
CITY OF RENTON, WASHINGTON
RESOLUTION NO. ________
A RESOLUTION OF THE CITY OF RENTON, WASHINGTON, AMENDING COUNCIL
POLICY 800‐12.
WHEREAS, the Council desires to update, revise, and modernize Policy No. 800‐12,
Contracting Authority, to reflect current practices, updated legal requirements and/or improved
efficiencies, and to clarify administrative matters, including contract approval authority, which
the Council delegates to the Mayor and/or defers to the Mayor’s role to supervise the
administrative affairs of the City in order to maintain an efficiently operated government;
NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF RENTON, WASHINGTON, DO
RESOLVE AS FOLLOWS:
SECTION I. The Council hereby amends the City of Renton Policy & Procedure 800‐12,
Contracting Authority, to read as attached hereto and incorporated herein as if fully set forth.
SECTION II. All contracts previously executed consistent with the amended Policy No.
800‐12 and applicable administrative policies are ratified.
PASSED BY THE CITY COUNCIL this ______ day of _______________________, 2021.
______________________________
Jason A. Seth, City Clerk
APPROVED BY THE MAYOR this ______ day of _______________________, 2021.
______________________________
Armondo Pavone, Mayor
AGENDA ITEM # 8. b)
RESOLUTION NO. ________
2
Approved as to form:
______________________________
Shane Moloney, City Attorney
RES:1882:7/7/2021scr/clb
AGENDA ITEM # 8. b)
POLICY & PROCEDURE
Subject:
CONTRACTING AUTHORITY
Index: LEGISLATIVE
Number: 800‐12
Effective Date:
Supersedes:
2/11/2019
Page:
1 of 5
Staff Contact:
CAO
Approved By:
Resolution #________ on
____/____/___
1.0 PURPOSE:
To maintain an efficient form of government, it is necessary for the Council to delegate
contract approval authority to the Mayor for specific types of contracts without prior City
Council review or subsequent ratification.
2.0 ORGANIZATIONS AFFECTED:
Mayor and departments/divisions
3.0 REFERENCES:
Applicable Administrative Policies (currently Policy & Procedure 250‐02)
RCW 35A.11.010 and 020 (Council Authority and Powers of Council)
RCW 35A.12.065 (Pro Tempore Appointments)
RCW 35A.12.100 (Authority and Powers of Mayor)
Chapter 39.04 RCW (Public Works Procurement)
RCW 39.04.155 (Small Works Roster Contract Procedures)
RCW 39.04.280 (Competitive Bidding Requirements – Exemptions)
Chapter 39.34 RCW (Interlocal Cooperation Act)
4.0 POLICY:
4.1 All statutory bidding and contracting requirements, as set forth in State law shall
be followed.
4.1.1 The Mayor is authorized to establish and/or use a small works roster or
rosters and develop procedures for the administration thereof for all
contracts up to $350,000.
4.2 To assist in contract management and retention, all contracts should include a
date by which full performance of the contract shall be complete.
AGENDA ITEM # 8. b)
CONTRACTING AUTHORITY
p. 2
4.3 All contracts should, before presentation to Council, be approved as to from by
the City Attorney Department.
4.4 All contracts shall be memorialized in writing and filed in the City Clerk Division.
4.5 The City Council shall receive an informational list of all contracts every quarter.
This list shall include, but not be limited to, date of expiration, amount of contract,
department responsible for the contract, expected completion date of contract,
and summarized scope of work. Contract Amendments exceeding the greater of
$100,000 or 10% of the original contract amount shall be highlighted within the
list.
4.6 Except as otherwise specified herein, the Mayor or his or her designee has
authority to approve and sign the following types of contracts without need for
separate Council approval or ratification:
4.6.1 All contracts for which the Original Contract Value is less than $100,000.
4.6.2 All contracts settling claims, litigation or threatened litigation for which the
Original Contract Value, less any contribution from a City insurance policy,
does not exceed $250,000.
4.6.3 All contracts awarded pursuant to small works procedures adopted and
administered by the Mayor pursuant to Section 4.1.1 herein.
4.6.4 All contracts, with an Original Contract Value between $100,000 and
$300,000 that contain specific intelligence information, the nondisclosure
of which is essential to effective law enforcement, so long as sufficient
funding is budgeted for the expenditure, and the Chair of the Public Safety
Committee is notified of the contract prior to its execution so that he or
she can, if he or she deems appropriate, request such contract be brought
to the full Council for approval.
4.6.5 Contract Amendments for which the Amendment Value does not exceed
$100,000.
4.6.6 Contracts and/or Contract Amendments specifically authorized by other
Council action.
4.6.7 Work Orders issued pursuant to RCW 39.10.450 so long as the overarching
Job Order Contract was previously approved by Council.
4.6.8 Annual technology hardware, software, or services renewal agreements
including annual license renewals, subscription services, support and
AGENDA ITEM # 8. b)
CONTRACTING AUTHORITY
p. 3
maintenance extensions, and general services renewals which do not
exceed $250,000.
4.6.9 Acquisitions of easements, right‐of‐way or title incident to a City public
works project budgeted by the City Council.
4.7 Notwithstanding anything to the contrary in Section 4.6 of this policy, the
following types of contracts require advance Council approval prior to the Mayor
or designee’s signature:
4.7.1 Any contract for the sale or purchase of real estate except for acquisitions
of easements, right‐of‐way or title incident to a City public works project
budgeted by the City Council.
4.7.2 Any contract to lease or otherwise encumber (e.g. via license or access
agreement) City‐owned real estate for a period of more than one (1) year
unless the contract provides the City with an option to terminate the lease
early without cause or damages by providing no more than six (6) months’
notice of termination.
4.7.3 Public Works contracts that require award by the City Council pursuant to
Chapter 39.04 RCW.
4.7.4 Any contract that transfers risk to the City of third party claims arising out
of a contractor’s misconduct or negligence if the risk transferred thereby
would not be covered by the City’s insurance policies. Any such provision
in a contract that is not approved by the Council shall be void and
unenforceable.
4.7.5 Any interlocal agreement entered into under the express authority of
Chapter 39.34 RCW.
4.7.6 Any contract that, pursuant to applicable law, requires authorization from
the City Council.
4.7.7 Any Contract or Contract Amendment for which the Mayor is not
authorized to approve by Section 4.6 of this policy.
4.8 Work on a contract requiring City Council approval should not commence until
such approval has been granted as authorized in this policy. However, work
outside of the contract’s original scope due to changed conditions on a public
works construction project may proceed prior to formal approval of a Contract
Amendment that exceeds the Mayor’s approval authority, if the Mayor or
designee determines such additional work is necessary to be performed without
AGENDA ITEM # 8. b)
CONTRACTING AUTHORITY
p. 4
delay in order to avoid increased costs or other inefficiencies. Promptly after
authorizing work that staff determines will require a Council approved Contract
Amendment, the Mayor or designee will provide the City Council with notice of
the work authorized pursuant to this Section. Once the cost of the work
authorized pursuant to this Section is determined, a Contract Amendment will be
presented to the Council for ratification.
4.9 In the event an emergency situation arises which necessitates a deviation from
this policy or applicable bidding or procurement laws, the Mayor may, pursuant
to RCW 39.04.280, declare an emergency situation exists, waive competitive
bidding requirements, and award all necessary contracts on behalf of the City ot
address the emergency situation. Within two weeks of awarding an emergency
contract, the Mayor shall provide Council with a written finding of the existence
of the emergency and notice of the contract(s) awarded pursuant to the authority
granted in this section. Such finding and notice shall be memorialized with the City
Clerk and published on the City’s website and/or in the next Council agenda
packets, as the City Clerk deems appropriate.
5.0 DEFINITIONS:
5.1 Amendment Value: Amendment Value is the dollar value of all Consideration
provided by the City to the other contracting party or parties as consideration for
an individual Contract Amendment. Calculation of Amendment Value should be
calculated consistent with the guidelines for calculating Original Contract Value.
5.2 Consideration: A value of exchanged or promised to be exchanged. Consideration
can be in the form of a service, money, and/or property, and can also be a promise
not to do something that the contracting party would otherwise be lawfully
permitted to do.
5.3 Contract: Any agreement (written, oral, or implied) with another entity that legally
binds the City to provide Consideration.
5.4 Contract Amendment: A modification or change in terms to a previously executed
Contract, regardless of form or label (e.g. addendum, amendment, change
order…).
5.5 Emergency: Unforeseen circumstance beyond the control of the City that either
a) present a real, immediate threat to the proper performance of essential
functions, or b) will likely result in material loss or damage to property, bodily
injury, or loss of life, if immediate action is not taken.
5.6 Mayor: The elected Mayor of the City of Renton, his or her designee(s), and/or a
pro tempore Mayor appointed temporarily pursuant to RCW 35A.12.065.
AGENDA ITEM # 8. b)
CONTRACTING AUTHORITY
p. 5
5.7 Original Contract Value: Original Contract Value is the dollar value of all
Consideration provided by the City to the other contracting party or parties in the
original contract. Calculation of Contract Value involving services or property
exchanged should include a reasonable estimate of the fair market value of
services and property provided by the City as Consideration.
6.0 PROCEDURES:
Procedural matters regarding bidding and contracting are the responsibility of the
Administration. This includes, but is not limited to, formally designating those who may
approve and/or sign contracts on the Mayor’s behalf and developing/updating
procurement policies and procedures designed to comply with applicable laws.
AGENDA ITEM # 8. b)
CITY OF RENTON, WASHINGTON
ORDINANCE NO. ________
AN ORDINANCE OF THE CITY OF RENTON, WASHINGTON, EXTENDING THE
INTERIM ZONING CONTROLS FOR THE URBAN CENTER (UC) ZONE ESTABLISHED
BY ORDINANCE NO. 6012, PROVIDING FOR SEVERABILITY, DECLARING AN
EMERGENCY, AND ESTABLISHING AN IMMEDIATE EFFECTIVE DATE.
WHEREAS, the City of Renton’s Comprehensive Plan policy for the Urban Center (UC) zone
is as follows, “Zone lands that are located within Renton’s Designated Regional Growth Center, if
there is a potential for the creation of dense employment, destination retail, recreation, or public
gathering space with the Urban Center (UC) zone. The Urban Center zoned areas have large
parcels of land with the potential for large scale redevelopment opportunities that will create a
mixed‐use retail, employment, and residential center. UC zoning implements the Commercial
Mixed Use land use designation.” Policy U‐17 [sic; “Policy L‐17” appears to have been intended];
and
WHEREAS, the purpose of the UC zone, as partly stated in Subsection 4‐2‐020.T of the
Renton Municipal Code, is as follows, “The Urban Center Zone (UC) is established to provide an
area for pedestrian‐scale urban mixed‐use development that supports the residential and
employment goals of Renton’s Urban Center;” and
WHEREAS, a development agreement between the City of Renton and The Boeing
Company (King County Recording Number: 20031210001637) governing many of the use and
development standards in the UC zone sunsetted on December 31, 2020; and
WHEREAS, without said development agreement there are insufficient zoning controls
for new development in the UC zone, as compared to the zoning controls of other commercial
AGENDA ITEM # 8. c)
2
zones in the City, thereby limiting the City’s ability to further the aforementioned policy and
purpose of the zone; and
WHEREAS, on January 25, 2021 the City Council passed Ordinance No. 6012 after
determining there was a need for interim zoning controls for the Urban Center (UC) zone; and
WHEREAS, City staff have initiated a work program to update UC zone development
standards but additional time is necessary to complete said work program; and
WHEREAS, the City Council held a public hearing on July 19, 2021, to consider an
extension of the interim zoning controls established in Ordinance No. 6012;
NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF RENTON, WASHINGTON, DO
ORDAIN AS FOLLOWS:
SECTION I. The above recitals are adopted as findings of fact in support of this interim
zoning control ordinance adopted herein pursuant to RCW 35A.63.220 and RCW 36.70A.390, and
are found to be true and correct in all respects.
SECTION II. The interim zoning controls imposed by Ordinance No. 6012 are hereby
extended and shall remain in effect until October 31, 2021, unless ended earlier by subsequent
City Council action, or unless subsequently extended by the City Council pursuant to state law.
SECTION III. A public hearing was held on July 19, 2021.
SECTION IV. If any Section, subsection, sentence, clause, phrase or work of this
ordinance should be held to be invalid or unconstitutional by a court or competent jurisdiction,
such invalidity or unconstitutionality thereof shall not affect the constitutionality of any other
Section, subsection, sentence, clause, phrase or word of this ordinance.
AGENDA ITEM # 8. c)
3
SECTION V. The City Council declares an emergency for the protection of the public
welfare and to enable the purpose and intent of this ordinance to be accomplished. This
ordinance shall take effect immediately when passed by the City Council. The City Clerk shall
cause to be published a summary of this ordinance in the City’s official newspaper. The summary
shall consist of this ordinance’s title.
PASSED BY THE CITY COUNCIL this _______ day of ___________________, 2021.
Jason A. Seth, City Clerk
APPROVED BY THE MAYOR this _______ day of _____________________, 2021.
Armondo Pavone, Mayor
Approved as to form:
Shane Moloney, City Attorney
Date of Publication:
ORD:2157:7/13/2021
AGENDA ITEM # 8. c)
1
CITY OF RENTON, WASHINGTON
ORDINANCE NO. ________
AN ORDINANCE OF THE CITY OF RENTON, WASHINGTON, AMENDING TITLE III
OF THE RENTON MUNICIPAL CODE, RENAMING AND REORGANIZING CITY
DEPARTMENTS AND POSITIONS, UPDATING REFERENCES TO RENAMED
DEPARTMENTS, AMENDING THE 2021 SALARY SCHEDULE ADOPTED BY
ORDINANCE NO. 5991 AND SUBSEQUENTLY AMENDED BY ORDINANCE NO.
6017, PROVIDING FOR SEVERABILITY, AND ESTABLISHING AN EFFECTIVE DATE.
WHEREAS, over the last two years, new and changing priorities have been brought to the
forefront by our community, leadership, and employees. As a result, the City’s Business Plan has
been refreshed and refocused; and
WHEREAS, the City can more effectively work towards the goals of the Business Plan by
creating and adapting departments with more cohesive, right‐sized divisions and programs that
can be unified in purpose by a common mission; and
WHEREAS, the 2021 Salary Schedule was adopted on November 9, 2020 by Ordinance
No. 5991 and was subsequently amended on May 3, 2021 by Ordinance No. 6017;
NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF RENTON, WASHINGTON, DO
ORDAIN AS FOLLOWS:
SECTION I. All portions of the Renton Municipal Code in this ordinance not shown in
strikethrough and underline edits remain in effect and unchanged.
SECTION II. Title III of the Renton Municipal Code is amended as shown on Exhibit A,
attached hereto and incorporated by this reference.
SECTION III. The City Clerk shall, to the extent possible, revise and replace all references
in the Renton Municipal Code that refer to the “Administrative Services” or "Community
AGENDA ITEM # 8. d)
ORDINANCE NO. ________
2
Services" departments and administrators to accurately reflect this Ordinance's renaming of the
departments.
SECTION IV. To the extent the reorganization authorized by this Ordinance results in a
need for revising substantive sections of the Renton Municipal Code to reflect the new division
of responsibilities between departments, references to departments or administrators in the
existing Renton Municipal Code should be interpreted to reflect the intent of this Ordinance and
be updated by way of future ordinance(s) as outdated references are discovered.
SECTION V. The City Council hereby adopts amended job classifications and pay ranges
for City employees for 2021 as set forth in Exhibit B, attached hereto and incorporated by this
reference, as of the effective dates shown therein.
SECTION VI. If any section, subsection, sentence, clause, phrase or work of this
ordinance should be held to be invalid or unconstitutional by a court or competent jurisdiction,
such invalidity or unconstitutionality thereof shall not affect the constitutionality of any other
section, subsection, sentence, clause, phrase or word of this ordinance.
SECTION VII. This ordinance shall be in full force and effect five (5) days after publication
of a summary of this ordinance in the City’s official newspaper. The summary shall consist of this
ordinance’s title.
PASSED BY THE CITY COUNCIL this _______ day of ___________________, 2021.
Jason A. Seth, City Clerk
AGENDA ITEM # 8. d)
ORDINANCE NO. ________
3
APPROVED BY THE MAYOR this _______ day of _____________________, 2021.
Armondo Pavone, Mayor
Approved as to form:
Shane Moloney, City Attorney
Date of Publication:
ORD:2171:7/12/21
AGENDA ITEM # 8. d)
ORDINANCE NO. ________
4
EXHIBIT A
RENTON MUNICIPAL CODE TITLE III
AGENDA ITEM # 8. d)
ORDINANCE NO. ________
5
Title III
DEPARTMENTS AND OFFICERS
1 Executive Services Department
2 Community Services Parks and Recreation Department
3 Department Of Community And Economic Development
4 Administrative Services Finance Department
5 Fire And Emergency Services Department Equity, Housing, and Human Services Department
6 Human Resources And Risk Management Department
7 Public Works Department
8 Police Department
9 City Attorney Department
10 Municipal Court
AGENDA ITEM # 8. d)
ORDINANCE NO. ________
6
CHAPTER 1
EXECUTIVE SERVICES DEPARTMENT
SECTION:
3‐1‐1: Establishment Of Department
3‐1‐2: Chief Administrative Officer Mayor’s Office
3‐1‐3: Mayor’s Office Chief Administrative Officer
3‐1‐4: City Clerk Divisions
3‐1‐5: Hearing Examiner Function
3‐1‐6: Communications Division Public Defense Service Standards
3‐1‐7: Public Defense Service Standards
3‐1‐8: Emergency Management Division
3‐1‐1 ESTABLISHMENT OF DEPARTMENT:
There is hereby established the Executive Services Department, consisting of separate offices
that are established and grouped for budget organization purposes, not as a delegation
collectively responsible for a portion of the sovereign power of government.
3‐1‐2 MAYOR’S OFFICE:
The Mayor’s Office shall be responsible for the coordination of internal and external issues and
programs, and have the responsibility to coordinate and direct overall city operations, budgets
and policy formulation consistent with applicable state law and powers vested in the Mayor by
the City Council.
3‐1‐23 CHIEF ADMINISTRATIVE OFFICER:
A. Position Established And Appointment: There is hereby established the position of Chief
Administrative Officer who shall be the chief appointed official in the City. The Chief
Administrative Officer shall be appointed by, report to, and serve at the pleasure of the Mayor.
Appointment of the Chief Administrative Officer shall be subject to confirmation by a majority
of the City Council.
B. Duties: The Chief Administrative Officer shall manage the various departments as
established in this title and shall have general oversight of all City departments as delegated by
the Mayor. The Chief Administrative Officer shall be responsible for the City’s general
operations, public relations and governmental affairs. The Chief Administrative Officer shall
perform other administrative duties as prescribed by the Council and/or directed by the Mayor.
C. Qualifications: The Chief Administrative Officer must have those qualifications deemed
necessary for this job by the Mayor, indicated on the City’s Chief Administrative Officer job
classification.
AGENDA ITEM # 8. d)
ORDINANCE NO. ________
7
3‐1‐3 MAYOR’S OFFICE:
The Mayor’s Office shall be responsible for the coordination of various internal and external
issues and programs, and have the responsibility to coordinate and direct overall city
operations, budgets and policy formulation.
3‐1‐4 CITY CLERK DIVISIONS:
A. City Clerk Division:
A1. Division Established And Appointment: There is hereby established the division of
the City Clerk. The position of City Clerk shall be filled by appointment by the Mayor, subject
to confirmation by a majority of the City Council.
B2. Duties: The City Clerk shall have all of the powers granted and duties imposed by
authority of the laws of the state of Washington and ordinances of the City now existing or
subsequently adopted. The City Clerk shall be a full‐time, non‐civil service position who shall
be in charge of the City Clerk Division. The City Clerk, or deputy as assigned by the City
Clerk, shall attend all meetings of the City Council and keep a complete record of the
proceedings thereof; and have custody of the City’s seal, the original roll of ordinances, the
original contracts, deeds and certificates relative to the title of any property of the City and
such other documents as are required to be deposited with the City. The City Clerk, or
deputy as assigned by the City Clerk, shall attest all public instruments and official acts of
the Mayor and shall provide certified copies of original records as may be required and
make such charge therefor as provided by the City of Renton Fee Schedule. The City Clerk,
or deputy as assigned by the City Clerk, shall accept service for the City during normal office
hours pursuant to RCW 4.28.080(2).
C3. Qualifications: The City Clerk must have those qualifications deemed necessary for
this job by the Mayor, indicated on the City’s City Clerk job classification.
D4. Designation Of Public Records Officer:
1a. The Public Records Act, Chapter 42.56 RCW, requires that all state and local
government agencies “appoint and publicly identify a public records officer whose
responsibility is to serve as a point of contact for members of the public in requesting
disclosure of public records and to oversee the agency’s compliance with the public
records disclosure requirements” under Washington law.
2b. The City Clerk or designee is hereby designated as the public records officer for the
City of Renton. Members of the public may direct requests for disclosure of public
records of the City of Renton to:
City Clerk
City Clerk’s Office
7th Floor, Renton City Hall
1055 S. Grady Way,
Renton, WA 98057
AGENDA ITEM # 8. d)
ORDINANCE NO. ________
8
3c. Notice of the designation of the City of Renton’s public records officer shall be made
in a manner reasonably calculated to provide notice to the public of such designation,
said notice to include, but not be limited to, the following: posting at City Hall and other
City of Renton buildings, posting on the City’s Internet web site, regular broadcasting on
the City’s government cable television channel, and inclusion in appropriate City
publications.
B. Communications and Engagement Division: The Communications and Engagement Division
shall be responsible for providing Renton residents and businesses with critical, relevant and
timely information, engaging Renton residents and connecting them with opportunities to be
involved and facilitating opportunities for dialogue, and overseeing City‐wide internal and
external communications including media relations, web and electronic communications and
printed materials and publications.
C. Emergency Management Division: The Emergency Management Division shall be
responsible for City‐wide emergency migration, preparedness, response, and recovery
programming.
D. Information Technology Division: The Information Technology Division shall be responsible
for strategically planning, organizing, coordinating, and implementing City‐wide technological
solutions.
3‐1‐5 HEARING EXAMINER FUNCTION:
The Chief Administrative Officer shall cause to be provided the services of a one or more
Hearing Examiners who will interpret, review, and implement land use regulations and make
quasi‐judicial decisions as provided in this Chapter and other ordinancesthe Renton Municipal
Code or for decisions delegated by the Mayor, Chief Administrative Officer, or City
Administrators.
3‐1‐6 COMMUNICATIONS DIVISION:
A. Division Established And Appointment: There is hereby established the Communications
Division. The position of Communications Director shall be filled by appointment by the Chief
Administrative Officer.
B. Duties: The Communications Division shall be responsible for providing Renton residents
and businesses with critical, relevant and timely information, engaging Renton residents and
making them aware of opportunities to be involved and initiating community dialogue and
overseeing City‐wide internal and external communications including media relations, web and
electronic communications and printed materials and publications.
C. Qualifications: The Communications Director must have the qualifications deemed
necessary for this job by the Mayor, as indicated on the Communications Director’s job
classification.
AGENDA ITEM # 8. d)
ORDINANCE NO. ________
9
3‐1‐76 PUBLIC DEFENSE SERVICE STANDARDS:
A. Service Delivery: The executive branch will have exclusive oversight of the provision of
public defense services. The City will provide for indigent defense through contracting with
public defense counsel (“counsel”) in keeping with RCW 10.101.030, within the terms of such
individual contracts.
B. Duties And Responsibilities Of Counsel: Counsel shall follow the duties and responsibilities
set forth in the individual contract. Among other things, all public defense services shall be
provided to all clients in a manner which meets or exceeds the standards set forth by the Rules
of Professional Conduct, the Washington State Bar Association, case law and applicable court
rules. These case duties and responsibilities include, but are not limited to, a thorough
investigation of the facts; research of relevant law; communication with each client about the
known facts; applicable law and local court rules, possible and likely disposition or verdict,
scheduling, and hearing and/or trial preparation; appropriate motion practice; and vigorous
representation of the client. In addition to the standards provided in this section, counsel shall
be required to comply with such additional provisions established in the individual contract
including maintenance of professional liability insurance. Finally, public defense services should
only be provided to those persons who meet the criteria set forth in RCW 10.101.010(1) or (2).
If a public defense service provider is appointed to a person who does not meet these criteria,
the public defense service provider must immediately bring this to the attention of the court
and the Executive Branch designee.
C. Qualifications Of Counsel: Counsel shall be licensed to practice law in the State of
Washington, be members in good standing of the Washington State Bar Association, comply
with all applicable rules relating to the practice of law that have been and will be promulgated
by the Washington State Supreme Court and be capable of performing all necessary duties
stated in the individual contract. Counsel shall have the requisite skill to perform each of the
required duties and responsibilities. Legal interns employed by counsel shall meet the
requirements set out in Admission to Practice Rule 9.
D. Training, Supervision, Monitoring, And Evaluation: The training, supervision, and monitoring
of counsel and staff shall be the sole responsibility of counsel, except as provided in the
individual contract. Evaluation of counsel shall be as provided in the individual contract. All
training and supervision shall conform to the standards set by the Rules of Professional
Conduct, the Washington State Bar Association, case law and applicable court rules. Consistent
with RCW 10.101, attorneys providing public defense services must attend training approved by
the Office of Public Defense at least once per calendar year.
E. Disposition Of Client Complaints: A method to respond promptly to client complaints shall
be established in the individual contract. Generally, counsel should immediately respond to the
complaint, and if the complaint is still not resolved, the individual contract shall specify to
whom the complaint shall be forwarded in the Executive Department.
F. Compensation: Compensation of counsel shall be established through negotiation of an
individual contract for public defense services, and determined generally by number of cases
AGENDA ITEM # 8. d)
ORDINANCE NO. ________
10
appointed. However, through negotiation there can be compensation that includes base
monthly compensation, so long as the average per case compensation is in accordance with
RCW 10.101.030 and comparable with surrounding jurisdictions of like services and time. In
determining compensation, Renton shall consider counsel’s training, experience, general court
practices, including but not limited to the ability of counsel to withdraw upon disposition or
other circumstance, nature of plea bargaining practices of the City of Renton’s Prosecutor,
experience and the nature and extent of services requested, court calendaring, in court time,
and time and labor required of the attorneys undertaking the defender services. Services that
require extraordinary fees such as investigation, expert witness services, support or other
services will be separate and distinct from per case compensation or base compensation and
defined in the individual contract.
G. Case Load Limits And Types Of Cases: The types of cases for which representation is to be
provided and maximum recommended number of cases which each attorney shall be expected
to handle shall be established by the individual contract. Attorney caseloads shall allow counsel
to give each client the time and effort necessary to provide effective representation. Case load
recommended limits should be determined by the number and type of cases being accepted,
the years of experience of the attorney, the years of City experience the attorney may have, the
court’s general practices with regard to acceptance of pleas and withdrawal of counsel. As
noted above, public defense services should only be provided to those persons who meet the
criteria set forth in RCW 10.101.010(1) or (2).
H. Administrative And Client Support Services: Administrative costs of providing
representation and necessarily incurred in the day‐to‐day management of the individual
contract shall be addressed in the individual contract. Renton will make available a meeting
space for client appointments close to the Court. Counsel shall staff his/her office with an
appropriate number of support staff and other support services and maintain contacts with
social service agencies in order to refer clients to services as needed.
I. Reporting Procedures: Counsel shall maintain records consistent with RCW 10.101.030 and
10.101.050. Counsel case reporting and management information shall be maintained
independently from client files in order to not disclose any privileged information. All reports
shall be directed to Executive Branch or its designee. All records pertaining to expenses and
billing shall conform to generally accepted accounting principles.
J. Substitution Of Counsel And Assignment Of Contracts: No substitution of counsel for any
appointed case will be approved without prior notification to the appropriate court. Counsel
shall not assign or subcontract any portion of the individual contract without the consent of
Renton.
K. Limitations On Private Practice: Counsel shall only maintain a private practice as the
individual contract specifically allows, and may not interfere with the performance of duties
outlined in the individual contract.
L. Termination Of Contract Or Removal Of Counsel: The termination of an individual contract
for public defense services will be determined by the provisions set forth in the individual
AGENDA ITEM # 8. d)
ORDINANCE NO. ________
11
contract. Removal of counsel from representation by the court normally should not occur over
the objection of both counsel and the client.
M. Prohibition Of Discrimination: With respect to all matters regarding public defense services,
there shall be no unlawful discrimination against any person because of race, color, creed,
gender, national origin, physical or mental disability or sexual orientation. The City of Renton
and counsel shall comply with and ensure compliance with Title VI of the Civil Rights Act of
1964 and the Americans with Disabilities Act of 1990 and all requirements imposed by or
pursuant to regulations of the United States Department of Justice or United States Equal
Employment Opportunity Commission issued pursuant to those titles.
3‐1‐8 EMERGENCY MANAGEMENT DIVISION:
The Emergency Management Division shall be responsible for City‐wide emergency migration,
preparedness, response, and recovery programming.
AGENDA ITEM # 8. d)
ORDINANCE NO. ________
12
CHAPTER 2
COMMUNITY SERVICES PARKS AND RECREATION DEPARTMENT
SECTION:
3‐2‐1: Establishment Of Department
3‐2‐2: Appointment Of Administrator
3‐2‐3: Duties Of Administrator
3‐2‐4: Qualifications Of Administrator
3‐2‐5: Divisions
3‐2‐1 ESTABLISHMENT OF DEPARTMENT:
There is hereby created and established the Community Services Parks and Recreation
Department.
3‐2‐2 APPOINTMENT OF ADMINISTRATOR:
The Community Services Parks and Recreation Administrator shall be appointed by the Mayor,
subject to confirmation by a majority of the City Council.
3‐2‐3 DUTIES OF ADMINISTRATOR:
The duties of the Administrator shall be to plan, organize, coordinate and direct the City’s
community services parks and recreation functions, oversee the acquisition of parks, facilities,
open space lands, and natural area properties; oversee work plans and provide relevant
information to the Mayor and City Council; and supervise and evaluate the performance of
assigned personnel.
3‐2‐4 QUALIFICATIONS OF ADMINISTRATOR:
The Community Services Parks and Recreation Administrator must possess those qualifications
deemed necessary for this job by the Mayor, indicated on the City’s Community Services Parks
and Recreation Administrator job classification.
3‐2‐5 DIVISIONS:
A. Parks/Golf Course Division: The Parks/Golf Course staff provides a safe, clean, attractive,
accessible, and well‐maintained environment for the public’s enjoyment of active and passive
recreational opportunities along with natural resource and wildlife preservation and
stewardship.
B. Recreation Division: The Recreation Division promotes and supports a more livable
community by providing opportunities for the public to participate in diverse recreational,
cultural, athletic, and aquatic programs and activities.
C. Facilities Division: The Facilities Division develops and maintains City buildings and manages
the delivery of building‐related services to the public and the City workforce in a safe,
customer‐focused manner.
AGENDA ITEM # 8. d)
ORDINANCE NO. ________
13
D. Human Services Division: The Human Services Division, in partnership with the community,
helps provide services, resources, and opportunities so that residents have food, clothing, and
shelter, are healthy and safe, and develop to their fullest capacity.
EC. Neighborhoods, Resources and Events Division: The Neighborhoods, Resources and Events
Division provides leadership, guidance, and resources which connect and engage residents,
neighborhoods, businesses, and the City through diverse opportunities for partnerships,
volunteers, special events, and sister cities, and neighborhood programs.
FE. Renton History Museum: The Renton History Museum is dedicated to the preservation,
documentation and education about the City’s heritage. With the support of the Renton
Historical Society, the Museum cares for a collection of over 90,000 objects and 14,000 historic
photos. The Museum also provides changing and permanent exhibits, programs, publications,
and classroom outreach about local history.
GF. Parks Planning and Natural Resources Division: The Parks Planning and Natural Resources
Division provides a comprehensive and interrelated system of parks, recreation, open spaces,
and trails that responds to locally‐based needs, values and conditions, provides an appealing
and harmonious environment, protects the integrity and quality of the surrounding natural
systems; and creates a sustainable and exemplary urban forest.
H. Libraries: Library services are provided to the City’s residents by King County Library
Services (KCLS). The Community Services Department maintains the oversight of representative
citizen input to the KCLS Board via the Renton Library Advisory Board.
AGENDA ITEM # 8. d)
ORDINANCE NO. ________
14
CHAPTER 3
DEPARTMENT OF COMMUNITY AND ECONOMIC DEVELOPMENT
SECTION:
3‐3‐1: Establishment Of Department
3‐3‐2: Appointment Of Administrator
3‐3‐3: Duties Of Administrator
3‐3‐4: Qualifications Of Administrator
3‐3‐5: Divisions
3‐3‐1 ESTABLISHMENT OF DEPARTMENT:
There is hereby created and established the Department of Community and Economic
Development (CED), also referred to as the Community and Economic Development
Department.
3‐3‐2 APPOINTMENT OF ADMINISTRATOR:
The Community and Economic Development Administrator shall be appointed by the Mayor,
subject to confirmation by a majority of the City Council.
3‐3‐3 DUTIES OF ADMINISTRATOR:
The duties of the Administrator shall be to plan, organize, coordinate and direct the City’s
economic development, planning, and development services functions; oversee work plans and
provide relevant information to the Mayor and City Council; and supervise and evaluate the
performance of assigned personnel. The Administrator shall also be responsible to plan,
organize, coordinate, and direct the activities, services, operations, budgets and policy
formulation of the local, state and federal legislative lobbying activities of the City.
The Administrator shall be responsible to plan, organize, coordinate, and direct the activities,
services, operations, budgets and policy formulation of City economic development services,
including business recruitment and retention.
3‐3‐4 QUALIFICATIONS OF ADMINISTRATOR:
The Community and Economic Development Administrator must possess those qualifications
deemed necessary for this job by the Mayor, indicated on the City’s Community and Economic
Development Administrator job classification.
3‐3‐5 DIVISIONS:
A. Economic Development Division: The Economic Development Division shall be responsible
for promoting and developing economic activity in the City that strengthens Renton’s tax base
and quality of life through business recruitment and retention programs, marketing of the
Renton community, and the strategic management of intergovernmental relations with
regional, state, and federal officials.
B. Development Services Division: The Development Services Division shall be responsible for
providing review, permitting and inspection services for the City of Renton. These services shall
include, but are not limited to building, mechanical, plumbing, electrical, street and utility
AGENDA ITEM # 8. d)
ORDINANCE NO. ________
15
improvements, developer utility extensions, permitting and inspection. The division shall also
provide zoning code enforcement services and maintain files and records of development
projects within the City of Renton.
C. Planning Division: The Planning Division shall be responsible for development and
enforcement of the City’s land use policies and regulations, including the Comprehensive Plan,
zoning, shoreline management, environmental regulations, subdivisions, and use permit
review. The division shall also be responsible for ensuring compliance with the Growth
Management Act (GMA) through the development and management of the City’s
Comprehensive Plan, and establishing implementing framework through development and
administration of the City’s zoning code and development regulations. This division also
maintains property information and other records, manages automated mapping and
geographic information systems and data analysis, and maintains survey documentation.
AGENDA ITEM # 8. d)
ORDINANCE NO. ________
16
CHAPTER 4
ADMINISTRATIVE SERVICES FINANCE DEPARTMENT
SECTION:
3‐4‐1: Establishment Of Department
3‐4‐2: Appointment Of Administrator
3‐4‐3: Duties Of Administrator
3‐4‐4: Qualifications Of Administrator
3‐4‐5: Divisions
3‐4‐1 ESTABLISHMENT OF DEPARTMENT:
There is hereby created and established the Administrative Services Finance Department.
3‐4‐2 APPOINTMENT OF ADMINISTRATOR:
The Administrative Services Finance Administrator shall be appointed by the Mayor, subject to
confirmation by a majority of the City Council.
3‐4‐3 DUTIES OF ADMINISTRATOR:
The Administrative Services Finance Administrator duties, functions and powers include but are
not limited to the following:
A. Maintain a general accounting system, including but not limited to creating new budgeting,
accounting and reporting funds and consolidating and/or closing such existing funds except as
may otherwise be directed by the state law.
B. Manage the preparation of proposed budgets; monitor revenue receipts and appropriate
expenditures to implement the adopted budget; and present, when necessary, financial,
legislative or policy proposals concerning the Administrative Services Finance Department to
the City Council for approval.
C. Promulgate rules and procedures to administer City tax and license ordinances as required
by RMC Title 5.
D. Conduct and oversee internal and external audits or examinations, including but not limited
to the audits or examinations of:
1. Taxpayer records;
2. Disbursements or refunds of City funds;
3. City financial transactions and activities.
E. Administer City debts, including but not limited to the coordination of debt issuance; ensure
timely processing of periodic debt service payments; ensure compliance with federal, state
AGENDA ITEM # 8. d)
ORDINANCE NO. ________
17
regulations, and bond covenants; provide financial information for ongoing disclosure and
rating agencies surveillance.
F. Collect monies due the City from any source; secure all public funds or investments
belonging to or under the control of the City; and deposit all City funds in such approved
depositories as is appropriate.
G. Administer the City’s investment program consistent with adopted policies and procedures.
H. Submit to the City Council, not less than quarterly, a financial report in sufficient detail to
show the exact financial condition of the City, and submit as of the end of each fiscal year a
comprehensive annual financial report.
I. Supervise and evaluate the performance of assigned personnel.
J. Perform such other and lawful acts and functions necessary to carry out this Chapter and/or
as may be assigned by the Mayor.
3‐4‐4 QUALIFICATIONS OF ADMINISTRATOR:
The Administrative Services Finance Administrator must possess those qualifications deemed
necessary for this job by the Mayor, indicated on the City’s Administrative Services Finance
Administrator job classification.
3‐4‐5 DIVISIONS:
A. Fiscal Services Division: The Fiscal Services Division shall be responsible to plan, organize,
coordinate and direct the financial and fiscal activities of the City. These shall include budget
development for not only the department but also the entire City, investment of the City’s
working cash capital; day‐to‐day cash control; accounts payables; accounts receivables; and
payroll.
B. Information Technology Division: The Information Technology Division shall be responsible
to strategically plan, organize, coordinate and implement city‐wide technological solutions.
C. Reserved.
AGENDA ITEM # 8. d)
ORDINANCE NO. ________
18
CHAPTER 5
FIRE AND EMERGENCY SERVICES EQUITY, HOUSING, AND HUMAN SERVICES DEPARTMENT
(Repealed by Ord. 5806, 6‐20‐16)
SECTION:
3‐5‐1: Establishment Of Department
3‐5‐2: Appointment Of Administrator
3‐5‐3: Duties Of Administrator
3‐5‐4: Qualifications Of Administrator
3‐5‐5: Divisions
3‐5‐1 ESTABLISHMENT OF DEPARTMENT:
There is hereby created and established an Equity, Housing, and Human Services Department.
3‐5‐2 APPOINTMENT OF ADMINISTRATOR:
The Equity, Housing, and Human Services Administrator shall be appointed by the Mayor,
subject to confirmation by a majority of the City Council.
3‐5‐3 DUTIES OF ADMINISTRATOR:
The duties of the Administrator shall be to plan, organize, coordinate, direct and supervise all
Equity, Housing, and Human Services Department functions and divisions; oversee work plans
and provide relevant information to the Mayor and City Council; and supervise and evaluate the
performance of assigned personnel.
3‐5‐4 QUALIFICATIONS OF ADMINISTRATOR:
The Equity, Housing, and Human Services Administrator must possess those qualifications
deemed necessary for this job by the Mayor, indicated on the City’s Equity, Housing, and
Human Services Administrator job classification.
3‐5‐5 DIVISIONS:
A. Diversity, Equity, and Outreach Division: The Diversity, Equity, Inclusion,
and Outreach Division will work with the community, commissions, committees, other
departments, and agencies to engage in dialogue and policy work that moves the City towards
a more inclusive, informed, and hate‐free city with equitable outcomes for all in support of
social, economic, and racial justice.
B. Housing Division: The Housing Division will focus on partnerships and leveraging resources
that will lead to an increase in affordable housing options and a decrease housing insecurity
within our community.
C. Human Services Division: The Human Services Division, in partnership with the community,
helps provide services, resources, and opportunities so that residents have food, clothing, and
shelter, are healthy and safe, and develop to their fullest capacity.
AGENDA ITEM # 8. d)
ORDINANCE NO. ________
19
CHAPTER 6
HUMAN RESOURCES AND RISK MANAGEMENT DEPARTMENT
SECTION:
3‐6‐1: Establishment Of Department
3‐6‐2: Appointment Of Administrator
3‐6‐3: Duties Of Administrator
3‐6‐4: Qualifications Of Administrator
3‐6‐1 ESTABLISHMENT OF DEPARTMENT:
There is hereby created and established a Department of Human Resources and Risk
Management.
3‐6‐2 APPOINTMENT OF ADMINISTRATOR:
The Human Resources and Risk Management Administrator shall be appointed by the Mayor,
subject to confirmation by a majority of the City Council.
3‐6‐3 DUTIES OF ADMINISTRATOR:
The duties of the Administrator shall be to develop and implement City Human Resources and
Risk Management policies, programs and projects; provide human resources services and
advice to City departments and employees; manage risk using a variety of tools including the
purchase of insurance, as well as the management of tort liability claims filed against the City,
and identify, analyze, control and minimize the City’s exposure to financial, personnel and
property losses; direct and participate in a variety of professional personnel activities including
recruitment, selection, testing, classification analysis and labor relations; and train, assign,
supervise and evaluate assigned personnel.
3‐6‐4 QUALIFICATIONS OF ADMINISTRATOR:
The Human Resources and Risk Management Administrator must possess those qualifications
deemed necessary for this job by the Mayor, indicated on the City’s Human Resources and Risk
Management Administrator job classification.
AGENDA ITEM # 8. d)
ORDINANCE NO. ________
20
CHAPTER 7
PUBLIC WORKS DEPARTMENT
SECTION:
3‐7‐1: Establishment Of Department
3‐7‐2: Appointment Of Administrator
3‐7‐3: Duties Of Administrator
3‐7‐4: Qualifications Of Administrator
3‐7‐5: Divisions
3‐7‐1 ESTABLISHMENT OF DEPARTMENT:
There is hereby created and established a Department of Public Works which shall be under the
supervision of the Public Works Department Administrator.
3‐7‐2 APPOINTMENT OF ADMINISTRATOR:
The Public Works Administrator shall be appointed by the Mayor, subject to confirmation by a
majority of the City Council.
3‐7‐3 DUTIES OF ADMINISTRATOR:
The duties of the Administrator shall be to plan, organize, coordinate, direct and supervise all
Public Works Department functions and divisions; oversee work plans and provide relevant
information to the Mayor and City Council; and supervise and evaluate the performance of
assigned personnel.
3‐7‐4 QUALIFICATIONS OF ADMINISTRATOR:
The Public Works Administrator must possess those qualifications deemed necessary for this
job by the Mayor, indicated on the City’s Public Works Administrator job classification.
3‐7‐5 DIVISIONS:
A. Transportation Systems Division: The Transportation Systems Division, under the
supervision of the Deputy Public Works Administrator – Transportation, shall plan, design,
construct, operate, and maintain a transportation system that provides safe and efficient
movement of people and goods, enhances environmental quality, and is compatible with local
and regional mobility goals and development objectives. Management of the Renton Municipal
Airport is also included in this division.
B. Utility Systems Division: The Utility Systems Division, including water, sewer, surface water,
and solid waste, under the supervision of the Utility Systems Director, shall ensure water,
wastewater, surface water, and solid waste systems are characterized by quality planning,
engineering, operations, financial integrity, and customer services.
C. Maintenance Services Division: The Maintenance Services Division, including street
maintenance, water maintenance, wastewater maintenance and vehicle fleet maintenance,
shall operate and maintain the City’s infrastructure including streets, sidewalks, bridges,
AGENDA ITEM # 8. d)
ORDINANCE NO. ________
21
equipment, rolling stock, water, wastewater, and surface water utility systems, and the solid
waste utility litter control program.
D. Airport Division: The Airport Division shall be responsible for all aspects of the Renton
Municipal Airport including management and operations of airport properties in compliance
with FAA requirements, management of aviation and non‐aviation property leases, airport
planning, airport capital improvements, financial sustainability, community and tenant
relations, and customer service.
E. Facilities Division: The Facilities Division develops and maintains City buildings and manages
the delivery of building‐related services to the public and the City workforce in a safe,
customer‐focused manner.
AGENDA ITEM # 8. d)
ORDINANCE NO. ________
22
CHAPTER 8
POLICE DEPARTMENT
SECTION:
3‐8‐1: Establishment Of Department
3‐8‐2: Appointment Of Police Chief
3‐8‐3: Duties Of Police Chief
3‐8‐4: Qualifications Of Police Chief
3‐8‐5: Divisions
3‐8‐1 ESTABLISHMENT OF DEPARTMENT:
There is hereby established the Renton Police Department.
3‐8‐2 APPOINTMENT OF POLICE CHIEF:
The Police Chief shall be appointed by the Mayor, subject to confirmation by a majority of the
City Council. The Police Chief shall be excluded from the classified civil service system as
permitted by RCW 41.12.050(2).
3‐8‐3 DUTIES OF POLICE CHIEF:
The Chief of the Police Chief administers the Renton Police Department and has the authority
to make rules and issue orders for the proper functioning of the department, consistent with
law, Council policy, and the rules of the Civil Service Commission.
3‐8‐4 QUALIFICATIONS OF POLICE CHIEF:
The Police Chief must possess those qualifications deemed necessary for this job by the Mayor
and his/her designee, indicated on the City’s job description.
3‐8‐5 DIVISIONS:
A. Patrol Operations Division: The Patrol Operations Division shall be responsible for
preventing criminal conduct; enforcing laws and ordinances; investigating criminal offenses;
detecting and preserving evidence and property; and apprehending offenders.
B. Patrol Services Division: The Patrol Services Division shall be responsible for providing traffic
enforcement; investigating major motor vehicle accidents; providing parking enforcement;
resolving animal complaints; and planning and organizing special events.
C. Investigation Division: The Investigation Division shall be responsible for conducting criminal
investigations; collecting and disseminating intelligence; recovering stolen property; arresting
offenders; and processing, storing, and releasing evidence and property.
D. Administrative Services Division: The Administrative Services Division shall be responsible
for providing department personnel services, crime prevention, and community relations
programs; fulfilling personnel and department equipment needs; administering a volunteer
AGENDA ITEM # 8. d)
ORDINANCE NO. ________
23
staff; conducting planning and research; and maintaining professional standards; and providing
a cost effective and safe electronic home detention program.
E. Special Operations Division: The Special Operations Division shall be responsible for
conducting undercover operations; narcotics investigations; resolving critical incidents; and
uniform emphasis patrols.
F. Staff Services Division: The Staff Services Division shall be responsible for recording and
disseminating information to department members and other agencies; organizing and storing
information; and providing security for City Hall.
AGENDA ITEM # 8. d)
ORDINANCE NO. ________
24
CHAPTER 9
CITY ATTORNEY DEPARTMENT
SECTION:
3‐9‐1: Establishment Of Department
3‐9‐2: City Attorney
3‐9‐3: Duties Of City Attorney
3‐9‐4: Qualifications Of City Attorney
3‐9‐5: Divisions
3‐9‐1 ESTABLISHMENT OF DEPARTMENT:
There is hereby established the City Attorney Department.
3‐9‐2 CITY ATTORNEY:
A. Position Established: There is hereby established the position of City Attorney.
B. Appointment: The position of City Attorney shall be filled by appointment by the Mayor,
subject to confirmation by a majority of the City Council.
3‐9‐3 DUTIES OF CITY ATTORNEY:
Duties: The City Attorney shall report to the Mayor and shall be the legal advisor of the Mayor,
the Council and of all of the officers, commissions and boards of the City in matters pertaining
to their operations in a governmental capacity. The City Attorney shall represent the City in all
litigation, in all courts in which the City is a party or directly interested, except where counsel is
provided by insurance or a risk pool or similar source, and shall prosecute all violations of the
provisions of this Code and act generally as Attorney for the City and the several departments
of the City government, together with such additional duties as the Council may prescribe by
ordinance or which the Mayor’s office may request from time to time.
3‐9‐4 QUALIFICATIONS OF CITY ATTORNEY:
The City Attorney shall be an attorney licensed to practice in the State of Washington and must
possess those qualifications deemed necessary for this job by the Mayor, indicated on the City’s
City Attorney job classification.
3‐9‐5 DIVISIONS:
A. Prosecution Division: The Prosecution Division is responsible for review and prosecution of
all cases in the Renton Municipal Court and any appeals therefrom, including necessary
discovery.
B. Civil Division: The Civil Division is responsible for all other duties to be performed by the City
Attorney Department.
AGENDA ITEM # 8. d)
ORDINANCE NO. ________
25
CHAPTER 10
MUNICIPAL COURT
SECTION:
3‐10‐1: Establishment Of Municipal Court
3‐10‐2: Term, Qualifications, Appointment, Duties, Authority, and Compensation Of Elected
Judicial Positions
3‐10‐3: Judges Pro Tem And Commissioners
3‐10‐4: Court Sessions
3‐10‐1 ESTABLISHMENT OF MUNICIPAL COURT:
There is hereby created and established the Municipal Court of the City of Renton (“Municipal
Court”), which shall have jurisdiction and exercise all powers vested in the court by Chapter
3.50 RCW as it now exists or may hereafter be amended, together with such other powers and
jurisdiction as are generally conferred on such courts in Washington, either by common law or
express statute.
3‐10‐2 TERM, QUALIFICATIONS, APPOINTMENT, DUTIES, AUTHORITY, AND COMPENSATION
OF ELECTED JUDICIAL POSITIONS:
A. Judicial Positions – Term and Qualifications: There shall be two (2) full‐time judicial
positions with regular terms filled by election of City of Renton voters. Elections shall be made
in same manner as other elected City positions with terms of four (4) years commencing on
January 1, 1986, and every four (4) years thereafter. Judges filling such positions shall be a
resident and lawfully registered voter in King County, Washington, and an attorney admitted to
practice law before the courts of record of the state of Washington.
B. Appointment: Within thirty (30) days of the creation or vacancy of a judicial position that is
subject to election pursuant to RCW 3.50.055, the Mayor shall appoint a judge to fill such
position with an interim term commencing upon appointment and terminating upon
certification of the next regularly scheduled judicial election. Upon certification of such election
results, the position shall be filled by the candidate elected to fill the position in the next full
four (4)‐year term. The Mayor’s appointment is subject to confirmation by the City Council.
C. Duties and Authority: Full‐time judges shall devote all of their professional time to the
elected or appointed office and shall not engage in the practice of law. Before entering upon
the duties of office, each judge shall take and subscribe to the oath or affirmations required by
RCW 3.50.097. The judges shall have the authority and duty to perform the responsibilities
conferred upon the positions in accordance with the jurisdiction granted to the Municipal Court
and all applicable statutes, ordinances, court rules, and other standards regulating such judicial
positions. The Presiding Judge may by court rule or other lawful procedure establish fines and
penalties for civil infractions or other offenses so long as such fines and penalties are within the
range allowed for such fines and penalties by ordinance, rule, or other law.
AGENDA ITEM # 8. d)
ORDINANCE NO. ________
26
D. Presiding Judge: The full‐time judges shall select a Presiding Judge, which may rotate or
otherwise be changed pursuant to agreement of the judges. Absent agreement, the judge with
the longest term of service as a judge and/or judge pro tem for the Municipal Court shall act as
the Presiding Judge. If each judge has the same length of service for the Municipal Court, the
default Presiding Judge shall be the judge holding the first numbered judicial position.
E. Compensation: Full‐time Judges shall receive a salary equal to ninety‐five percent (95%) of
the salary for a district court judge as set by the Washington State Citizens’ Commission on
Salaries for Elected Officials. The salary shall automatically be adjusted on the effective date of
the commission’s salary schedule.
3‐10‐3 JUDGES PRO TEM AND COMMISSIONERS:
A. The Presiding Judge may appoint Judges Pro Tem or commissioners who shall act in the
absence, disability or temporary disqualification of the regular Municipal Court Judges, or the
need for additional judicial resources. The Judges Pro Tem or Commissioners shall be qualified
to hold the position of Judge of the Municipal Court.
B. Such Pro Tem Judges and Commissioners shall receive hourly compensation for handling
the calendar on any regular or special court day and for any other judicial services assigned by
the Presiding Judge. Such compensation may be set by the Presiding judge based upon market
rates for Pro Tem Judges so long as funds available for such compensation are available for
expenditure as determined in the City budget.
C. The appointment authority provided in this Section does not apply to regular full‐ or part‐
time positions which are subject to election pursuant to RCW 35.50.055.
3‐10‐4 COURT SESSIONS:
The Municipal Court shall be open for regular session Monday through Friday of each week,
except City and judicial holidays. The time for operation of court and administrative services on
those days shall be established by the Presiding Judge. The Presiding Judge shall have the
authority to establish additional court dates, by order of the Municipal Court, to provide
effective and efficient administration of justice. This Section shall not act as a limitation of
actions of the Municipal Court Judges regarding items such as telephonic approval of search
warrants, issuance of no contact orders, or determinations as to probable cause.
AGENDA ITEM # 8. d)
ORDINANCE NO. ________
27
EXHIBIT B
2021 CITY OF RENTON SALARY TABLE
AGENDA ITEM # 8. d)
Grade Code Position Title Monthly Annual Monthly Annual
e10 1030 Mayor (1)15,059 180,708 15,059 180,708
e09 1005 City Council President (2)(7)2,050 24,600
e09 1000 City Council Members (2)1,750 21,000
e08 10,397 124,764 10,925 131,100 11,476 137,712 12,057 144,684 12,665 151,980
e11 1020 Municipal Court Judge (6)15,051 180,614 15,051 180,614
Salary effective July 2020 - June 30, 2022
Salary is 95% of District Court Judge Salary
m53 1035 Chief Administrative Officer (3)13,641 163,692 14,336 172,032 15,059 180,708 15,819 189,828 16,612 199,344
m52 13,307 159,684 13,980 167,760 14,694 176,328 15,438 185,256 16,209 194,508
m51 12,983 155,796 13,641 163,692 14,336 172,032 15,059 180,708 15,819 189,828
m50 12,665 151,980 13,307 159,684 13,980 167,760 14,694 176,328 15,438 185,256
m49 1400 City Attorney (3)12,360 148,320 12,983 155,796 13,641 163,692 14,336 172,032 15,059 180,708
m49 1102 Parks & Recreation Administrator (3)12,360 148,320 12,983 155,796 13,641 163,692 14,336 172,032 15,059 180,708
m49 1105 Community & Economic Development Administrator 12,360 148,320 12,983 155,796 13,641 163,692 14,336 172,032 15,059 180,708
m49 Deputy Chief Administrative Officer (3)12,360 148,320 12,983 155,796 13,641 163,692 14,336 172,032 15,059 180,708
m49 1101 Finance Administrator (3)12,360 148,320 12,983 155,796 13,641 163,692 14,336 172,032 15,059 180,708
m49 Equity, Housing & Human Services Administrator (3)12,360 148,320 12,983 155,796 13,641 163,692 14,336 172,032 15,059 180,708
m49 1104 Human Resources & Risk Mgmt Administrator (3)12,360 148,320 12,983 155,796 13,641 163,692 14,336 172,032 15,059 180,708
m49 1103 Public Works Administrator (3)12,360 148,320 12,983 155,796 13,641 163,692 14,336 172,032 15,059 180,708
m49 1201 Police Chief (3)12,360 148,320 12,983 155,796 13,641 163,692 14,336 172,032 15,059 180,708
m48 12,057 144,684 12,665 151,980 13,307 159,684 13,980 167,760 14,694 176,328
m47 11,764 141,168 12,360 148,320 12,983 155,796 13,641 163,692 14,336 172,032
m46 1535 Police Deputy Chief (4)11,476 137,712 12,057 144,684 12,665 151,980 13,307 159,684 13,980 167,760
m45 1573 Deputy PW Administrator - Transportation (3)11,197 134,364 11,764 141,168 12,360 148,320 12,983 155,796 13,641 163,692
m44 10,925 131,100 11,476 137,712 12,057 144,684 12,665 151,980 13,307 159,684
m43 10,656 127,872 11,197 134,364 11,764 141,168 12,360 148,320 12,983 155,796
m42 1401 Sr Assistant City Attorney 10,397 124,764 10,925 131,100 11,476 137,712 12,057 144,684 12,665 151,980
m41 10,145 121,740 10,656 127,872 11,197 134,364 11,764 141,168 12,360 148,320
m40 9,899 118,788 10,397 124,764 10,925 131,100 11,476 137,712 12,057 144,684
m39 9,657 115,884 10,145 121,740 10,656 127,872 11,197 134,364 11,764 141,168
m38 2178 Airport Director 9,422 113,064 9,899 118,788 10,397 124,764 10,925 131,100 11,476 137,712
m38 2011 City Clerk/Public Records Officer 9,422 113,064 9,899 118,788 10,397 124,764 10,925 131,100 11,476 137,712
m38 1403 Chief Prosecuting Attorney 9,422 113,064 9,899 118,788 10,397 124,764 10,925 131,100 11,476 137,712
m38 1500 Court Services Director 9,422 113,064 9,899 118,788 10,397 124,764 10,925 131,100 11,476 137,712
m38 Communications & Engagement Director 9,422 113,064 9,899 118,788 10,397 124,764 10,925 131,100 11,476 137,712
m38 1575 Development Services Director 9,422 113,064 9,899 118,788 10,397 124,764 10,925 131,100 11,476 137,712
m38 1501 Economic Development Director 9,422 113,064 9,899 118,788 10,397 124,764 10,925 131,100 11,476 137,712
m38 2044 Emergency Management Director 9,422 113,064 9,899 118,788 10,397 124,764 10,925 131,100 11,476 137,712
m38 1207 Facilities Director 9,422 113,064 9,899 118,788 10,397 124,764 10,925 131,100 11,476 137,712
m38 1210 Fiscal Services Director 9,422 113,064 9,899 118,788 10,397 124,764 10,925 131,100 11,476 137,712
m38 1212 Information Technology Director 9,422 113,064 9,899 118,788 10,397 124,764 10,925 131,100 11,476 137,712
2021 CITY OF RENTON SALARY TABLE
NON-REPRESENTED Effective January 1, 2021
STEP A STEP B STEP C STEP D STEP E
ELECTED OFFICIALS
MANAGEMENT & SUPERVISORY (NON-UNION)
AGENDA ITEM # 8. d)
Grade Code Position Title Monthly Annual Monthly Annual
2021 CITY OF RENTON SALARY TABLE
NON-REPRESENTED Effective January 1, 2021
STEP A STEP B STEP C STEP D STEP E
m38 1571 Maintenance Services Director 9,422 113,064 9,899 118,788 10,397 124,764 10,925 131,100 11,476 137,712
m38 8084 Parks and Trails Director 9,422 113,064 9,899 118,788 10,397 124,764 10,925 131,100 11,476 137,712
m38 1208 Parks Planning and Natural Resources Director 9,422 113,064 9,899 118,788 10,397 124,764 10,925 131,100 11,476 137,712
m38 1502 Planning Director 9,422 113,064 9,899 118,788 10,397 124,764 10,925 131,100 11,476 137,712
m38 2031 Police Commander (5)9,422 113,064 9,899 118,788 10,397 124,764 10,925 131,100 11,476 137,712
m38 1214 Recreation & Neighborhoods Director 9,422 113,064 9,899 118,788 10,397 124,764 10,925 131,100 11,476 137,712
m38 1570 Utility Systems Director 9,422 113,064 9,899 118,788 10,397 124,764 10,925 131,100 11,476 137,712
m38 1572 Transportation Systems Director 9,422 113,064 9,899 118,788 10,397 124,764 10,925 131,100 11,476 137,712
m37 9,194 110,328 9,657 115,884 10,145 121,740 10,656 127,872 11,197 134,364
m36 2463 HR Labor Relations & Compensation Manager 8,968 107,616 9,422 113,064 9,899 118,788 10,397 124,764 10,925 131,100
m35 1402 Assistant City Attorney 8,747 104,964 9,194 110,328 9,657 115,884 10,145 121,740 10,656 127,872
m34 2460 Organizational Development Manager 8,530 102,360 8,968 107,616 9,422 113,064 9,899 118,788 10,397 124,764
m33 5015 Budget & Accounting Manager 8,325 99,900 8,747 104,964 9,194 110,328 9,657 115,884 10,145 121,740
m33 2074 Building Official 8,325 99,900 8,747 104,964 9,194 110,328 9,657 115,884 10,145 121,740
m33 1578 Community Development & Housing Manager 8,325 99,900 8,747 104,964 9,194 110,328 9,657 115,884 10,145 121,740
m33 2021 Current Planning Manager 8,325 99,900 8,747 104,964 9,194 110,328 9,657 115,884 10,145 121,740
m33 2073 Development Engineering Manager 8,325 99,900 8,747 104,964 9,194 110,328 9,657 115,884 10,145 121,740
m33 2411 Financial Services Manager 8,325 99,900 8,747 104,964 9,194 110,328 9,657 115,884 10,145 121,740
m33 2020 Long Range Planning Manager 8,325 99,900 8,747 104,964 9,194 110,328 9,657 115,884 10,145 121,740
m33 2174 Property & Technical Services Manager 8,325 99,900 8,747 104,964 9,194 110,328 9,657 115,884 10,145 121,740
m33 2176 Transportation Design Manager 8,325 99,900 8,747 104,964 9,194 110,328 9,657 115,884 10,145 121,740
m33 2075 Transportation Operations Manager 8,325 99,900 8,747 104,964 9,194 110,328 9,657 115,884 10,145 121,740
m33 2177 Transportation Planning Manager 8,325 99,900 8,747 104,964 9,194 110,328 9,657 115,884 10,145 121,740
m33 2172 Utility Engineering Manager 8,325 99,900 8,747 104,964 9,194 110,328 9,657 115,884 10,145 121,740
m33 3072 Water Maintenance Manager 8,325 99,900 8,747 104,964 9,194 110,328 9,657 115,884 10,145 121,740
m32 4480 Capital Projects Manager 8,122 97,464 8,530 102,360 8,968 107,616 9,422 113,064 9,899 118,788
m32 1577 Economic Development Manager 8,122 97,464 8,530 102,360 8,968 107,616 9,422 113,064 9,899 118,788
m32 4470 Parks Planning Manager 8,122 97,464 8,530 102,360 8,968 107,616 9,422 113,064 9,899 118,788
m32 3083 Urban Forestry and Natural Resources Manager 8,122 97,464 8,530 102,360 8,968 107,616 9,422 113,064 9,899 118,788
m31 7,925 95,100 8,325 99,900 8,747 104,964 9,194 110,328 9,657 115,884
m30 2418 Application Support Manager 7,732 92,784 8,122 97,464 8,530 102,360 8,968 107,616 9,422 113,064
m30 2273 Assistant Development Engineering Manager 7,732 92,784 8,122 97,464 8,530 102,360 8,968 107,616 9,422 113,064
m30 3073 Fleet Manager 7,732 92,784 8,122 97,464 8,530 102,360 8,968 107,616 9,422 113,064
m30 2407 GIS Manager 7,732 92,784 8,122 97,464 8,530 102,360 8,968 107,616 9,422 113,064
m30 2462 Human Resources Benefits Manager 7,732 92,784 8,122 97,464 8,530 102,360 8,968 107,616 9,422 113,064
m30 2033 Police Manager 7,732 92,784 8,122 97,464 8,530 102,360 8,968 107,616 9,422 113,064
m30 2409 Risk Manager 7,732 92,784 8,122 97,464 8,530 102,360 8,968 107,616 9,422 113,064
m30 3071 Street Maintenance Manager 7,732 92,784 8,122 97,464 8,530 102,360 8,968 107,616 9,422 113,064
m30 3176 Transportation Maintenance Manager 7,732 92,784 8,122 97,464 8,530 102,360 8,968 107,616 9,422 113,064
m30 3070 Waste Water/Special Operations Manager 7,732 92,784 8,122 97,464 8,530 102,360 8,968 107,616 9,422 113,064
m29 3084 Golf Course Manager 7,538 90,456 7,925 95,100 8,325 99,900 8,747 104,964 9,194 110,328
m29 1522 Human Services Manager 7,538 90,456 7,925 95,100 8,325 99,900 8,747 104,964 9,194 110,328
m29 1404 Prosecuting Attorney 7,538 90,456 7,925 95,100 8,325 99,900 8,747 104,964 9,194 110,328
m29 2087 Recreation & Neighborhoods Manager 7,538 90,456 7,925 95,100 8,325 99,900 8,747 104,964 9,194 110,328
m28 3086 Facilities Manager 7,361 88,332 7,732 92,784 8,122 97,464 8,530 102,360 8,968 107,616
m28 6031 Financial Operations Manager 7,361 88,332 7,732 92,784 8,122 97,464 8,530 102,360 8,968 107,616
m28 8010 Parks Maintenance Manager 7,361 88,332 7,732 92,784 8,122 97,464 8,530 102,360 8,968 107,616
m28 5254 Permit Services Manager 7,361 88,332 7,732 92,784 8,122 97,464 8,530 102,360 8,968 107,616
m28 1116 Tax & Licensing Manager 7,361 88,332 7,732 92,784 8,122 97,464 8,530 102,360 8,968 107,616
m27 2204 Census Program Manager 7,180 86,160 7,538 90,456 7,925 95,100 8,325 99,900 8,747 104,964
m27 3011 Enterprise Content Manager 7,180 86,160 7,538 90,456 7,925 95,100 8,325 99,900 8,747 104,964
m27 2578 Housing Programs Manager 7,180 86,160 7,538 90,456 7,925 95,100 8,325 99,900 8,747 104,964
AGENDA ITEM # 8. d)
Grade Code Position Title Monthly Annual Monthly Annual
2021 CITY OF RENTON SALARY TABLE
NON-REPRESENTED Effective January 1, 2021
STEP A STEP B STEP C STEP D STEP E
m26 2202 Communications Manager 7,005 84,060 7,361 88,332 7,732 92,784 8,122 97,464 8,530 102,360
m25 2086 Head Golf Professional 6,834 82,008 7,180 86,160 7,538 90,456 7,925 95,100 8,325 99,900
m25 2562 Senior Benefits Analyst 6,834 82,008 7,180 86,160 7,538 90,456 7,925 95,100 8,325 99,900
m25 2563 Senior Employee Relations Analyst 6,834 82,008 7,180 86,160 7,538 90,456 7,925 95,100 8,325 99,900
m25 2410 Senior Finance Analyst 6,834 82,008 7,180 86,160 7,538 90,456 7,925 95,100 8,325 99,900
m25 2561 Senior Risk Analyst 6,834 82,008 7,180 86,160 7,538 90,456 7,925 95,100 8,325 99,900
m25 2479 Solid Waste Coordinator 6,834 82,008 7,180 86,160 7,538 90,456 7,925 95,100 8,325 99,900
m24 5112 Deputy City Clerk/Public Records Officer 6,671 80,052 7,005 84,060 7,361 88,332 7,732 92,784 8,122 97,464
m23 3562 Benefits Analyst 6,501 78,012 6,834 82,008 7,180 86,160 7,538 90,456 7,925 95,100
m23 3563 Employee Relations Analyst 6,501 78,012 6,834 82,008 7,180 86,160 7,538 90,456 7,925 95,100
m23 2080 Recreation Supervisor 6,501 78,012 6,834 82,008 7,180 86,160 7,538 90,456 7,925 95,100
m23 2461 Risk Analyst 6,501 78,012 6,834 82,008 7,180 86,160 7,538 90,456 7,925 95,100
m22 2404 Community Events Coordinator 6,348 76,176 6,671 80,052 7,005 84,060 7,361 88,332 7,732 92,784
m22 1510 Court Services Supervisor 6,348 76,176 6,671 80,052 7,005 84,060 7,361 88,332 7,732 92,784
m22 8007 Golf Course Supervisor 6,348 76,176 6,671 80,052 7,005 84,060 7,361 88,332 7,732 92,784
m22 2091 Museum Manager 6,348 76,176 6,671 80,052 7,005 84,060 7,361 88,332 7,732 92,784
m21 2218 Tax & Licensing Auditor, Senior 6,191 74,292 6,501 78,012 6,834 82,008 7,180 86,160 7,538 90,456
m20 6,040 72,480 6,348 76,176 6,671 80,052 7,005 84,060 7,361 88,332
m19 6150 City Council Liaison 5,895 70,740 6,191 74,292 6,501 78,012 6,834 82,008 7,180 86,160
m19 6103 Executive Assistant 5,895 70,740 6,191 74,292 6,501 78,012 6,834 82,008 7,180 86,160
m18 5416 Payroll Technician III 5,747 68,964 6,040 72,480 6,348 76,176 6,671 80,052 7,005 84,060
m17 5,610 67,320 5,895 70,740 6,191 74,292 6,501 78,012 6,834 82,008
n16 multiple Administrative Assistants (All Depts)5,451 65,412 5,726 68,712 6,007 72,084 6,316 75,792 6,631 79,572
n16 5118 Finance Analyst III 5,451 65,412 5,726 68,712 6,007 72,084 6,316 75,792 6,631 79,572
n16 2217 Tax & Licensing Auditor II 5,451 65,412 5,726 68,712 6,007 72,084 6,316 75,792 6,631 79,572
n15 5,309 63,708 5,584 67,008 5,864 70,368 6,162 73,944 6,477 77,724
n14 5,185 62,220 5,451 65,412 5,726 68,712 6,007 72,084 6,316 75,792
n13 5115 Finance Analyst II 5,057 60,684 5,309 63,708 5,584 67,008 5,864 70,368 6,162 73,944
n13 2662 Human Resources Specialist 5,057 60,684 5,309 63,708 5,584 67,008 5,864 70,368 6,162 73,944
n13 5316 Payroll Technician II 5,057 60,684 5,309 63,708 5,584 67,008 5,864 70,368 6,162 73,944
n13 2216 Tax & Licensing Auditor I 5,057 60,684 5,309 63,708 5,584 67,008 5,864 70,368 6,162 73,944
n12 4,938 59,256 5,185 62,220 5,451 65,412 5,726 68,712 6,007 72,084
n11 2488 Assistant Golf Professional 4,813 57,756 5,057 60,684 5,309 63,708 5,584 67,008 5,864 70,368
n11 5139 Human Resources Assistant 4,813 57,756 5,057 60,684 5,309 63,708 5,584 67,008 5,864 70,368
n10 5114 Finance Analyst I 4,698 56,376 4,938 59,256 5,185 62,220 5,451 65,412 5,726 68,712
n10 5216 Payroll Technician I 4,698 56,376 4,938 59,256 5,185 62,220 5,451 65,412 5,726 68,712
n09 6151 Administrative Secretary I EX 4,586 55,032 4,813 57,756 5,057 60,684 5,309 63,708 5,584 67,008
n08 4,471 53,652 4,698 56,376 4,938 59,256 5,185 62,220 5,451 65,412
n07 4,363 52,356 4,586 55,032 4,813 57,756 5,057 60,684 5,309 63,708
n06 4,255 51,060 4,471 53,652 4,698 56,376 4,938 59,256 5,185 62,220
n05 4,152 49,824 4,363 52,356 4,586 55,032 4,813 57,756 5,057 60,684
NON-UNION (CLERICAL, OTHER)
AGENDA ITEM # 8. d)
Grade Code Position Title Monthly Annual Monthly Annual
2021 CITY OF RENTON SALARY TABLE
NON-REPRESENTED Effective January 1, 2021
STEP A STEP B STEP C STEP D STEP E
n04 4,053 48,636 4,255 51,060 4,471 53,652 4,698 56,376 4,938 59,256
n03 3,958 47,496 4,152 49,824 4,363 52,356 4,586 55,032 4,813 57,756
n02 3,861 46,332 4,053 48,636 4,255 51,060 4,471 53,652 4,698 56,376
n01 5138 Office Specialist 3,772 45,264 3,958 47,496 4,152 49,824 4,363 52,356 4,586 55,032
$6,262
Completion of 5 Yrs
Completion of 10 Yrs
Completion of 15 Yrs
Completion of 20 Yrs
Completion of 25 Yrs
Completion of 30 Yrs
(1)In addition to salary receives annual car allowance of $4800 or use of a city vehicle.
(2)
(3)Not eligible for Longevity/Education or Uniform Allowance
(4)Not eligible for Longevity/Education or Uniform Allowance
Eligible for 3% cash premium or 3% into deferred compensation per employee's discretion for passing physical fitness.
(5)Receive Education/Longevity & Uniform Allowance based on Union Contract plus eligible for 3% deferred compensation for passing physical fitness.
(6)4 year term
(7)Council president to be paid $300/month above council members salary.
Council members salary set per Salary Commission effective 4/1/20. Council receives 2% of salary for deferred comp. If members are not
participating in PERS, they receive an extra 1.4 % of salary for deferred compensation.
The City contributes 4% of employee's base wage per year to a deferred compensation account
for Management and Non-Represented employees; except for CAO receives 7% per year.
5% Step a14E $313 per month
6% Step a14E $376 per month
7% Step a14E $438 per month
3% Step a14E $188 per month
4% Step a14E $250 per month
2% Step a14E $125 per month
NON-REPRESENTED LONGEVITY PAY as of 1/1/2021
Step a14, E =
AGENDA ITEM # 8. d)
1
CITY OF RENTON, WASHINGTON
ORDINANCE NO.
AN ORDINANCE OF THE CITY OF RENTON, WASHINGTON, AMENDING THE CITY
OF RENTON FISCAL YEARS 2021/2022 BIENNIAL BUDGET, AS ADOPTED BY
ORDINANCE NO. 5991 AND AMENDED BY ORDINANCE NO. 6017, IN THE
AMOUNT OF $(27,164,592) AND ESTABLISHING AN EFFECTIVE DATE.
WHEREAS, on November 9, 2020, the City Council adopted Ordinance No. 5991 adopting
the City of Renton’s 2021/2022 Biennial Budget; and
WHEREAS, on May 3, 2021, the City Council adopted Ordinance No. 6017 adopting an
amended 2021 City of Renton Salary Table and carrying forward funds appropriated in 2020, but
not expended in 2020 due to capital project interruptions and delays in invoice payments, which
needed to be carried forward and appropriated for expenditure in 2021 requiring an adjustment
to the 2021/2022 Biennial Budget; and
WHEREAS, minor corrections and the recognition of grants, contributions and associated
costs, and new cost items not previously included in the budget require additional adjustments
to the 2021/2022 Biennial Budget; and
WHEREAS, it is necessary to amend the 2021/2022 Biennial Budget to consolidate the
Municipal Arts Fund 125 into the General Fund to be consistent with Generally Accepted
Accounting Principles (GAAP) and the City’s annual financial report; and
WHEREAS, it is necessary to amend the 2021/2022 Biennial Budget to create the
following new funds: Housing and Supporting Services Fund 130, Renton School District Impact
Mitigation Fund 310, Issaquah School District Impact Mitigation Fund 311, and Kent School
District Impact Mitigation Fund 312, to better track the resources and costs of the City;
AGENDA ITEM # 8. e)
ORDINANCE NO. ________
2
NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF RENTON, WASHINGTON, DO
ORDAIN AS FOLLOWS:
SECTION I. To make minor corrections and recognize grants, contributions and
associated costs not previously included in the 2021/2022 Biennial Budget; to consolidate the
Municipal Arts Fund 125 into the General Fund; and to create Housing and Supporting Services
Fund 130, Renton School District Impact Mitigation Fund 310, Issaquah School District Impact
Mitigation Fund 311, and Kent School District Impact Mitigation Fund 312, the City of Renton’s
2021/2022 Biennial Budget, originally adopted in Ordinance No. 5991 and amended by
Ordinance No. 6017, is hereby amended in the total amount of $(27,164,592) for an amended
total of $674,490,315 over the biennium.
SECTION II. The City Council hereby adopts the amended 2021/2022 Biennial Budget.
The 2021 2nd Quarter Budget Adjustment Summary by Fund is attached as Exhibit A and the 2022
Adjusted Budget Summary by Fund is attached as Exhibit B. Detailed lists of adjustments are
available for public review in the Office of the City Clerk, Renton City Hall.
SECTION III. This ordinance shall be in full force and effect five (5) days after publication
of a summary of this ordinance in the City’s official newspaper. The summary shall consist of this
ordinance’s title.
PASSED BY THE CITY COUNCIL this _______ day of ___________________, 2021.
Jason A. Seth, City Clerk
AGENDA ITEM # 8. e)
ORDINANCE NO. ________
3
APPROVED BY THE MAYOR this _______ day of _______________________, 2021.
Armondo Pavone, Mayor
Approved as to form:
Shane Moloney, City Attorney
Date of Publication:
ORD:2169:6/18/21
AGENDA ITEM # 8. e)
ORDINANCE NO. _______ 4 Exhibit A: 2021 2nd Quarter Budget Adjustment Summary by Fund BEGINNING FUND BALANCE REVENUES EXPENDITURES ENDING FUND BALANCEFund2021 Beg Fund BalChanges2021 Adj Fund Bal2021 Budgeted RevenueChanges2021 Adjusted Revenue2021 Budgeted ExpenditureChanges2021 Adjusted ExpenditureEnding Fund BalanceReserved/ DesignatedAvailable Fund Balance0XX GENERAL FUND54,456,582 ‐ 54,456,582 113,702,347 (7,273,448) 106,428,899 131,153,840 (13,585,085) 117,568,754 43,316,727 (11,905,500) 31,411,226 110 SPECIAL HOTEL‐MOTEL TAX893,604 ‐ 893,604 225,000 ‐ 225,000 501,197 ‐ 501,197 617,406 617,406 127 CABLE COMMUNICATIONS DEVELOPMENT677,710 ‐ 677,710 97,674 ‐ 97,674 97,674 ‐ 97,674 677,710 677,710 130 HOUSING AND SUPPORTIVE SERVICES ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 135 SPRINGBROOK WETLANDS BANK348,826 ‐ 348,826 24,200 ‐ 24,200 ‐ ‐ ‐ 373,026 373,026 140 POLICE SEIZURE 872,449 ‐ 872,449 ‐ ‐ ‐ 872,449 ‐ 872,449 ‐ ‐ 141 POLICE CSAM SEIZURE 150,637 ‐ 150,637 ‐ ‐ ‐ 150,637 ‐ 150,637 ‐ ‐ 215 GENERAL GOVERNMENT MISC DEBT SVC5,010,629 ‐ 5,010,629 7,493,298 ‐ 7,493,298 7,153,019 ‐ 7,153,019 5,350,908 (2,717,575) 2,633,333 303 COMMUNITY SERVICES IMPACT MITIGATION1,713,833 ‐ 1,713,833 1,266,283 305,181 1,571,464 1,830,328 250,000 2,080,328 1,204,969 1,204,969 305 TRANSPORTATION IMPACT MITIGATION3,154,954 ‐ 3,154,954 200,000 ‐ 200,000 172,869 ‐ 172,869 3,182,086 3,182,086 308 REET12,042,269 ‐ 2,042,269 2,250,000 ‐ 2,250,000 2,865,000 ‐ 2,865,000 1,427,269 1,427,269 309 REET23,411,866 ‐ 3,411,866 5,427,680 ‐ 5,427,680 7,066,705 ‐ 7,066,705 1,772,841 1,772,841 31X SCHOOL DISTRICT IMPACT MITIGATION‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 316 MUNICIPAL FACILITIES CIP20,298,663 ‐ 20,298,663 8,743,218 555,181 9,298,399 28,225,409 1,195,881 29,421,290 175,772 175,772 317 CAPITAL IMPROVEMENT16,792,413 ‐ 16,792,413 29,731,028 700,000 30,431,028 44,659,724 760,868 45,420,592 1,802,850 1,802,850 336 NEW LIBRARY DEVELOPMENT16,679 ‐ 16,679 ‐ ‐ ‐ 16,679 ‐ 16,679 ‐ ‐ 346 NEW FAMILY FIRST CENTER DEVELOPMENT8,356,704 ‐ 8,356,704 75,000 ‐ 75,000 872,775 ‐ 872,775 7,558,929 7,558,929 402 AIRPORT OPERATIONS & CIP 7,558,405 ‐ 7,558,405 3,051,767 58,162 3,109,929 8,764,848 600,520 9,365,368 1,302,966 (223,124) 1,079,842 403 SOLID WASTE UTILITY2,771,562 ‐ 2,771,562 22,641,386 313,136 22,954,522 22,589,223 313,107 22,902,330 2,823,754 (400,000) 2,423,754 404 GOLF COURSE SYSTEM & CAPITAL 476,746 ‐ 476,746 2,901,275 225,309 3,126,584 2,634,100 256,319 2,890,418 712,911 (641,550) 71,362 405 WATER OPERATIONS & CAPITAL 40,776,314 ‐ 40,776,314 17,972,403 ‐ 17,972,403 49,071,667 (85,862) 48,985,805 9,762,912 (3,008,354) 6,754,558 406 WASTEWATER OPERATIONS & CAPITAL 23,996,217 ‐ 23,996,217 11,786,486 ‐ 11,786,486 28,633,537 3,896 28,637,433 7,145,270 (1,575,451) 5,569,819 407 SURFACE WATER OPERATIONS & CAPITAL 21,610,356 ‐ 21,610,356 24,185,763 91,504 24,277,267 31,505,106 152,671 31,657,778 14,229,845 (1,871,548) 12,358,297 416 KING COUNTY METRO4,729,749 ‐ 4,729,749 17,607,838 ‐ 17,607,838 17,607,838 ‐ 17,607,838 4,729,749 (380,000) 4,349,749 501 EQUIPMENT RENTAL6,376,259 ‐ 6,376,259 6,554,775 (91,380) 6,463,395 5,289,546 ‐ 5,289,546 7,550,108 7,550,108 502 INSURANCE19,860,208 ‐ 19,860,208 3,533,775 ‐ 3,533,775 3,698,515 ‐ 3,698,515 19,695,468 (17,708,251) 1,987,217 503 INFORMATION SERVICES3,939,941 ‐ 3,939,941 6,614,378 ‐ 6,614,378 7,374,069 ‐ 7,374,069 3,180,249 3,180,249 504 FACILITIES504,167 ‐ 504,167 5,996,730 ‐ 5,996,730 6,168,171 898 6,169,069 331,828 331,828 505 COMMUNICATIONS151,624 ‐ 151,624 1,155,732 ‐ 1,155,732 1,152,826 ‐ 1,152,826 154,530 154,530 512 HEALTHCARE INSURANCE5,773,429 ‐ 5,773,429 12,477,543 ‐ 12,477,543 12,580,831 ‐ 12,580,831 5,670,141 (3,774,249) 1,895,892 522 LEOFF1 RETIREES HEALTHCARE16,541,245 ‐ 16,541,245 2,705,933 ‐ 2,705,933 1,362,685 ‐ 1,362,685 17,884,493 (17,884,493) ‐ 304 FIRE IMPACT MITIGATION2,191,452 ‐ 2,191,452 99,000 ‐ 99,000 436,987 ‐ 436,987 1,853,465 1,853,465 611 FIREMENS PENSION7,908,312 ‐ 7,908,312 385,000 ‐ 385,000 210,475 ‐ 210,475 8,082,837 (8,082,837) ‐ Total Other Funds228,907,223 ‐ 228,907,223 195,203,165 2,157,092 197,360,258 293,564,889 3,448,298 297,013,187 129,254,294 (58,267,432) 70,986,862 TOTAL ALL FUNDS 283,363,805 ‐ 283,363,805 308,905,512 (5,116,355) 303,789,157 424,718,729 (10,136,787) 414,581,942 172,571,020 (70,172,932) 102,398,088 AGENDA ITEM # 8. e)
ORDINANCE NO. ________ 5 Exhibit B: 2022 Adjusted Budget Summary by Fund BEGINNING FUND BALANCE REVENUES EXPENDITURES ENDING FUND BALANCEFund 2022 Beg Fund Bal Changes 2022 Adj. Fund Bal 2022 Budgeted Revenue Changes 2022 Adjusted Revenue 2022 Budgeted Expenditure Changes 2022 Adjusted Expenditure Ending Fund Balance Reserved/ Designated Available Fund Balance 0XX GENERAL FUND37,005,089 6,311,638 43,316,727 123,806,412 (17,190,007) 106,616,405 131,495,705 (17,090,999) 114,404,706 35,528,426 (11,652,376) 23,876,049 110 SPECIAL HOTEL‐MOTEL TAX617,406 ‐ 617,406 200,000 ‐ 200,000 ‐ ‐ ‐ 817,406 817,406 127 CABLE COMMUNICATIONS DEVELOPMENT677,710 ‐ 677,710 97,674 ‐ 97,674 97,674 ‐ 97,674 677,710 677,710 130 HOUSING AND SUPPORTIVE SERVICES ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 135 SPRINGBROOK WETLANDS BANK373,026 ‐ 373,026 ‐ ‐ ‐ ‐ ‐ ‐ 373,026 373,026 140 POLICE SEIZURE‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 141 POLICE CSAM SEIZURE‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 215 GENERAL GOVERNMENT MISC DEBT SVC5,350,908 ‐ 5,350,908 4,533,969 ‐ 4,533,969 4,341,920 ‐ 4,341,920 5,542,957 (2,717,575) 2,825,382 303 COMMUNITY SERVICES IMPACT MITIGATION1,149,788 55,181 1,204,969 86,500 ‐ 86,500 ‐ ‐ ‐ 1,291,469 1,291,469 305 TRANSPORTATION IMPACT MITIGATION3,182,086 ‐ 3,182,086 200,000 ‐ 200,000 200,000 ‐ 200,000 3,182,086 3,182,086 308 REET 11,427,269 ‐ 1,427,269 2,300,000 ‐ 2,300,000 2,315,000 ‐ 2,315,000 1,412,269 1,412,269 309 REET 21,772,841 ‐ 1,772,841 2,300,000 ‐ 2,300,000 2,750,625 ‐ 2,750,625 1,322,216 1,322,216 31X SCHOOL DISTRICT IMPACT MITIGATION‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 316 MUNICIPAL FACILITIES CIP816,472 (640,700) 175,772 2,462,840 ‐ 2,462,840 2,455,962 ‐ 2,455,962 182,650 182,650 317 CAPITAL IMPROVEMENT1,863,718 (60,868) 1,802,850 2,200,000 ‐ 2,200,000 583,000 ‐ 583,000 3,419,850 3,419,850 336 NEW LIBRARY DEVELOPMENT‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 346 NEW FAMILY FIRST CENTER DEVELOPMENT7,558,929 ‐ 7,558,929 ‐ ‐ ‐ ‐ ‐ ‐ 7,558,929 7,558,929 402 AIRPORT OPERATIONS & CIP 1,845,324 (542,358) 1,302,966 3,051,767 ‐ 3,051,767 2,927,234 5,241 2,932,475 1,422,258 (225,548) 1,196,711 403 SOLID WASTE UTILITY2,823,725 29 2,823,754 23,108,703 ‐ 23,108,703 23,352,023 ‐ 23,352,023 2,580,434 (400,000) 2,180,434 404 GOLF COURSE SYSTEM & CAPITAL 743,922 (31,010) 712,911 2,984,655 ‐ 2,984,655 2,710,966 46,420 2,757,386 940,180 (659,742) 280,438 405 WATER OPERATIONS & CAPITAL 9,677,050 85,862 9,762,912 19,107,026 ‐ 19,107,026 17,442,277 2,196 17,444,473 11,425,465 (3,045,788) 8,379,677 406 WASTEWATER OPERATIONS & CAPITAL 7,149,166 (3,896) 7,145,270 12,178,313 ‐ 12,178,313 13,096,699 582 13,097,281 6,226,302 (1,591,741) 4,634,562 407 SURFACE WATER OPERATIONS & CAPITAL 14,291,013 (61,167) 14,229,845 12,835,489 ‐ 12,835,489 17,074,512 7,857 17,082,369 9,982,965 (1,872,812) 8,110,153 416 KING COUNTY METRO4,729,749 ‐ 4,729,749 17,695,877 ‐ 17,695,877 17,695,877 ‐ 17,695,877 4,729,749 (380,000) 4,349,749 501 EQUIPMENT RENTAL7,641,488 (91,380) 7,550,108 6,365,614 ‐ 6,365,614 4,370,604 ‐ 4,370,604 9,545,118 9,545,118 502 INSURANCE19,695,468 ‐ 19,695,468 3,561,243 ‐ 3,561,243 3,907,955 ‐ 3,907,955 19,348,756 (17,328,565) 2,020,191 503 INFORMATION SERVICES3,180,249 ‐ 3,180,249 6,736,779 ‐ 6,736,779 6,747,251 ‐ 6,747,251 3,169,777 3,169,777 504 FACILITIES332,726 (898) 331,828 6,183,470 ‐ 6,183,470 6,357,208 898 6,358,106 157,192 157,192 505 COMMUNICATIONS154,530 0 154,530 1,187,600 ‐ 1,187,600 1,184,722 ‐ 1,184,722 157,408 157,408 512 HEALTHCARE INSURANCE5,670,141 ‐ 5,670,141 13,566,817 ‐ 13,566,817 13,683,431 ‐ 13,683,431 5,553,527 (4,105,029) 1,448,498 522 LEOFF1 RETIREES HEALTHCARE17,884,493 ‐ 17,884,493 2,710,067 ‐ 2,710,067 1,444,425 ‐ 1,444,425 19,150,135 (19,150,135) ‐ 304 FIRE IMPACT MITIGATION1,853,465 ‐ 1,853,465 99,000 ‐ 99,000 500,634 ‐ 500,634 1,451,831 1,451,831 611 FIREMENS PENSION8,082,837 ‐ 8,082,837 290,000 ‐ 290,000 200,475 ‐ 200,475 8,172,362 (8,172,362) ‐ Total Other Funds130,545,500 (1,291,206) 129,254,294 146,043,403 ‐ 146,043,403 145,440,473 63,194 145,503,668 129,794,029 (59,649,296) 70,144,733 TOTAL ALL FUNDS 167,550,588 5,020,432 172,571,020 269,849,814 (17,190,007) 252,659,808 276,936,178 (17,027,805) 259,908,373 165,322,454 (71,301,672) 94,020,782 2 year total578,755,326 (22,306,362) 556,448,965 701,654,907 (27,164,592) 674,490,315 165,322,454 (71,301,672) 94,020,782 AGENDA ITEM # 8. e)