HomeMy WebLinkAboutD_Tabor Crowall Repair_SME_FINALDEPARTMENT OF COMMUNITY
AND ECONOMIC DEVELOPMENT
D_Tabor Crowall Repair_SME_FINAL
PLANNING DIVISION
CERTIFICATE OF EXEMPTION
FROM SHORELINE SUBSTANTIAL DEVELOPMENT
EVALUATION FORM & DECISION
DATE OF DECISION: February 3, 2026
PROJECT NUMBER: LUA26-000034, SME
PROJECT NAME: Tabor-Crowall Emergency Repair
PROJECT MANAGER: Jill Ding, Senior Planner
OWNER: City of Renton
1055 S Grady Way, Renton, WA 98057
APPLICANT/CONTACT: Grace Brennan, King County WLRD
201 S Jackson St, Seattle, WA 98104
PROJECT LOCATION: 2901 Maple Valley Hwy, Renton, WA 98058 (APN 1623059033)
PROJECT DESCRIPTION: The applicant is requesting a Shoreline Exemption for emergency repairs to
damage sustained during the December 2025 flooding event. Scour and bank erosion in this revetment
resulted in immediate, emergency risk to Maple Valley Highway (SR 169) and associated utilities, including a
fiber optic line, that could have resulted in catastrophic failure. The repair work consisted of placing
geotextile and rock within the Cedar River and in the revetment prism to stabilize the revetment. Best
Management Practices (BMPs), including installing silt fences and covering stockpiles of topsoil with plastic
sheeting were implemented. Once BMPs and safety measures were installed, geotextile was placed over the
exposed soil in the erosional scarp. After geotextile placement, approximately 308 tons of 3 to 5 man-sized
rock was placed on the revetment where erosion scour was occurring. Of this rock placed, approximately 175
cubic yards were placed above the ordinary high water mark (OHWM) and approximately 55 cubic yards were
placed below the OHWM. Once the large rock was in place, four-to-eight-inch (4-8”) quarry spalls were
spread over the top. Fifteen cubic yards of quarry spalls were placed above the OHWM, and five cubic yards
were placed below. The site was then stabilized; topsoil and seed were spread and coir matting was installed
above the revetment where lawn was impacted to reduce erosion risk. According to City of Renton (COR)
Maps, the project site is mapped with protected and sensitive slopes, a high seismic hazard area, a Wellhead
Protection Area, Zone 2, and is within the 100 year floodplain and floodway of the Cedar River. In addition, the
Cedar River is a Type S designated Shoreline of the State and the project site is located within Shoreline High
Intensity Designation of reach C of the Cedar River.
SEC-TWN-R: SW 16-23-05
LEGAL DESCRIPTION: POR OF GOV LOT 3 & OF GOV LOT 5 IN SW 1/4 OF SEC 16-23-05 LY NLY OF
Docusign Envelope ID: A67033E8-63C2-4E85-8BE2-707A0332DDF5
City of Renton Department of Community & Economic Development Certificate of Exemption From Shoreline Substantial Development
Tabor-Crowall Emergency Repair LUA26-000034, SME
Permit Date: February 3, 2026 Page 2 of 3
D_Tabor Crowall Repair_SME_FINAL
(King County Assessor) BURLINGTON RR R/W PACIFIC COAST RR LESS P S P & L CO TRANS LINE R/W
TGW POR OF GOV LOT 4 LY SLY OF SR 169 & SLY OF OLD CO RD NO 1140 --
SUBJ TO ESMT OF P S P & L CO TRANS LINE TGW POR OF GOV LOT 2 & OF GOV
LOT 4 - BEG IN GOV LOT 4 AT INTSN OF SWLY R/W OF SR 169 AS EXISTED PRIOR
TO FEBRUARY 18, 1971 AND A LINE DAF - BAAP OPPOSITE HWY ENGR STATION
REFERRED TO AS HES 1494+21.74 ON SR 169 LINE SURVEY OF 169 RENTON
MAPLEWOOD TO JCT SR 405 & 57.85 FT SWLY THEREFROM TH NWLY TAP
OPPOSITE HES 1499 & 54.94 P C ON SAID SR 169 LINE SURVEY & 60 FT SWLY
THEREFROM TH NWLY WLY & SWLY PLW SAID SR 169 LINE SURVEY TAP
OPPOSITE HES 1504+00 THEREON TH SWLY TAP OPPOSITE HES 1505+50 ON
SAID SR 169 LINE SURVEY & 85FT SELY THEREFROM & END OF THIS LINE
DESCRIPTION TH NWLY WLY & SWLY ALG ABOVE DESCRIBED LINE TO
INTERSECTION OF SAID GOV LOT 2 WITH SAID SWLY R/W LINE TH SELY ALONG
SAID SWLY R/W LINE TO POB
WATER BODY/REACH: Cedar River, Reach C
SHORELINE EXEMPTION FINDINGS:
The proposed development is consistent with the following findings:
YES i. Consistent with the policies of the Shoreline Management Act.
Staff Comments: The proposed emergency revetment repair would qualify as
maintenance and repair of an existing structure and would be exempt from a Shoreline
Substantial Development Permit as specified in the Shoreline Management Act.
YES ii. Not Applicable to the guidelines of the Department of Ecology where no Master Program
has been finally approved or adopted by the Department.
Staff Comments: Not Applicable.
YES iii. Consistent with the City of Renton Shoreline Master Program.
Staff Comments: The City’s adopted Shoreline Master Program permits the repair of
existing shoreline stabilization structures (RMC 4-3-090F.4.c), provided it serves to
perform a shoreline stabilization function for a legally established land use, but shall be
subject to the provisions in RMC 4-3-090F.4.c.ii-iv if the land use for which the shoreline
stabilization structure was constructed is abandoned per RMC 4-10-060,
Nonconforming Uses, or changed to a new use. The proposed repairs to the existing
revetment are resulting from impacts from the December 2025 flood event and are not
the result of any change of use to the existing property.
EXEMPTION JUSTIFICATION/DECISION: An exemption from a Shoreline Management Substantial
Development Permit is hereby Approved on the proposed project in accordance with RMC 4-9-190C
“Exemptions from Permit System” and for the following reasons:
Normal maintenance or repair of existing structures or developments, including damage by accident, fire or
elements. "Normal maintenance" includes those usual acts to prevent a decline, lapse, or cessation from a
lawfully established condition. "Normal repair" means to restore a development to a state comparable to its
original condition, including but not limited to its size, shape, configuration, location and external
Docusign Envelope ID: A67033E8-63C2-4E85-8BE2-707A0332DDF5
City of Renton Department of Community & Economic Development Certificate of Exemption From Shoreline Substantial Development
Tabor-Crowall Emergency Repair LUA26-000034, SME
Permit Date: February 3, 2026 Page 3 of 3
D_Tabor Crowall Repair_SME_FINAL
appearance, within a reasonable period after decay or partial destruction, except where repair causes
substantial adverse effects to shoreline resource or environment. Replacement of a structure or development
may be authorized as repair where such replacement is the common method of repair for the type of structure
or development and the replacement structure or development is comparable to the original structure or
development including but not limited to its size, shape, configuration, location and external appearance and
the replacement does not cause substantial adverse effects to shoreline resources or environment.
SIGNATURE & DATE OF DECISION:
___________________________________________ __________________________________
Matthew Herrera, Planning Director Date
RECONSIDERATION: Within 14 days of the decision date, any party may request that the decision be
reopened by the approval body. The approval body may modify his decision if material evidence not readily
discoverable prior to the original decision is found or if he finds there was misrepresentation of fact. After
review of the reconsideration request, if the approval body finds sufficient evidence to amend the original
decision, there will be no further extension of the appeal period. Any person wishing to take further action
must file a formal appeal within the 14-day appeal time frame.
APPEALS: This administrative land use decision will become final if not appealed in writing to the
Hearing Examiner on or before 5:00 PM on February 17, 2026. An appeal of the decision must be filed
within the 14-day appeal period (RCW 43.21.C.075(3); WAC 197-11-680). Appeals must be submitted
electronically to the City Clerk at cityclerk@rentonwa.gov or delivered to City Hall 1st floor Lobby Hub
Monday through Friday. The appeal fee, normally due at the time an appeal is submitted, will be collected at
a future date if your appeal is submitted electronically. The appeal submitted in person may be paid on the
first floor in our Finance Department. Appeals to the Hearing Examiner are governed by RMC 4-8-110 and
additional information regarding the appeal process may be obtained from the City Clerk’s Office,
cityclerk@rentonwa.gov.
EXPIRATION: Two (2) years from the date of decision (date signed).
ATTACHMENTS:
Attachment A: Project Narrative
Attachment B: Emergency Stabilization Work Plan
Attachment C: Material Summary
Docusign Envelope ID: A67033E8-63C2-4E85-8BE2-707A0332DDF5
2/3/2026 | 3:42 PM PST
Water and Land Resources Division
Department of Natural Resources and Parks
King Street Center
201 South Jackson Street, Suite 600
Seattle, WA 98104-3855
206-477-4637
TECHNICAL MEMORANDUM
January 28, 2026
TO: Jill Ding, Senior Planner, City of Renton Planning
FM: Grace Brennan, Environmental Scientist III, King County River and Floodplain Capital Unit, Water
and Land Resources Division, Department of Natural Resources and Parks
RE: Tabor-Crowall Emergency Repair Project Narrative
LOCATION
The existing Tabor-Crowall revetment is southwest of State Route (SR) 169 and on the right
(north) bank of the Cedar River between RM 2.75 and RM 2.85. This facility is within the Renton
(City) city limits, the Cedar-Sammamish Watershed Resource Inventory Area 8, and the
Hydrologic Unit Code 171100120107 – Madsen Creek-Cedar River watershed subbasin. The
Tabor-Crowall emergency repair project (Project) is within Sections 16 and 21 of Township 23N,
Range 5E, Willamette Meridian.
PROJECT DESCRIPTION
The completed emergency repair project addressed damage sustained during the recent
December 2025 flooding event. Scour and bank erosion in this revetment resulted in
immediate, emergency risk to SR 169 and associated utilities, including a fiber optic line, that
could have resulted in catastrophic failure.
The project consisted of placing geotextile and rock within the Cedar River and in the revetment
prism to stabilize the revetment. The project was done following BMPs, including installing silt
fences after the site was cleared and covering stockpiles of topsoil with plastic sheeting. Once
BMPs and safety measures were installed, geotextile was placed over the exposed soil in the
erosional scarp. After geotextile placement, 307.93 total tons of 3 to 5 man-sized rock was
placed on the revetment where erosion scour was occurring. Of this rock placed, 175 cubic
yards were placed above the ordinary high water mark (OHWM) and 55 cubic yards were
placed below the OHWM. Once the large rock was in place, 4-8” quarry spalls were spread over
the top. Fifteen cubic yards of quarry spalls were placed above the OHWM, and 5 cubic yards
were placed below. The site was then stabilized; topsoil and seed were spread and coir matting
was installed above the revetment where lawn was impacted to reduce erosion risk.
Attachment A
RECEIVED
01/29/2026 jding
PLANNING DIVISION
Docusign Envelope ID: A67033E8-63C2-4E85-8BE2-707A0332DDF5
Below the OHWM, the repair did not change the character, scope or size of the original design.
Large rocks and rip-rap are present both upstream and downstream of the repair site that
stabilize the riverbank. Above the OHWM, the revetment is vegetated with English ivy (Hedera
helix) and Himalayan blackberry (Rubus bifrons). This vegetation is rooted in soil, which may be
underlain with large rock and quarry spalls.
A larger project is in development at this location that includes the installation of dolosse and
woody material on both the left and the right bank of this project, a habitat bench on the left
bank, and the installation of native riparian vegetation. This emergency repair will be integrated
into this larger project, which will result in increased habitat and ecological function at the site.
Plans for integration into the next project are still in development, and King County intends to
keep the City of Renton involved as it progresses.
Docusign Envelope ID: A67033E8-63C2-4E85-8BE2-707A0332DDF5
Project: #6245993 Tabor Crowall Revetment
Date: December 15, 2025
To: Mark Ruebel, Capital Strike Team Supervisor
River and Floodplain Management
Email: Mark.Ruebel@kingcounty.gov
Page 1
Contract #6245993 Tabor Crowall Revetment Construction Work Plan
Tabor Crowall Revetment – Construction Work
Plan
Scope of Work
· Secure the Cedar Riverbank as shown in the Tabor Crowall Revetment plans.
· Design and implement Tra ic Control Plans (TCP) to ensure safe access to the work zone.
· Clear and prepare the site for heavy equipment.
· Install silt fence and plastic covering for stockpiles.
· Install steel sheets for protection and weight dispersion.
· Haul and stockpile 3–5 man-sized rock.
· Place 3–5-man rock, working from east to west.
· Place Class 5 Riprap over large rocks.
· Compact rock using excavator bucket.
· Clean up stockpile area, spread topsoil, and hydroseed.
Supervisory Personnel
Name Company Role Phone
Mike Dysert Johansen
Construction
Division Manager 206-396-9784
Justin Drotz Johansen
Construction
General Foreman 253-421-2882
Jacob Obrigewitsch Johansen
Construction
Senior Project
Engineer
253-417-0877
Dan Madsen Johansen
Construction
Foreman 206-786-5190
Schedule
Work Hours: Monday – Friday, 7:00 AM to 5:30 PM
Description Start Date End Date
Prepare and Submit TCP 12/15/25 12/16/25
Clear and Prep Site 12/16/25 12/16/25
Attachment B
RECEIVED
01/29/2026 jding
PLANNING DIVISION
Docusign Envelope ID: A67033E8-63C2-4E85-8BE2-707A0332DDF5
Project: #6245993 Tabor Crowall Revetment
Date: December 15, 2025
To: Mark Ruebel, Capital Strike Team Supervisor
River and Floodplain Management
Email: Mark.Ruebel@kingcounty.gov
Page 2
Contract #6245993 Tabor Crowall Revetment Construction Work Plan
Install BMPs 12/16/25 12/16/25
Install Steel Sheets 12/16/25 12/16/25
Haul and Place 3–5 Man
Rock
12/17/25 12/19/25
Haul and Place Class 5
Riprap
12/22/25 12/23/25
Remove Steel Sheets &
Spread Topsoil
12/23/25 12/24/25
Hydroseed 12/29/25 12/29/25
Construction Sequencing
1. Implement TCP for safe access; requires an additional lane on Eastbound SR 169 for steel sheet
and rock hauling.
2. Clear and level site; excavate 6” to align with sidewalk for steel sheet placement. Stockpile
excavated topsoil for later use.
3. Install silt fence and plastic sheeting over stockpiles.
4. Install steel sheets for protection and weight distribution; overlap sheets if necessary for stability.
5. Haul and stockpile 3–5 man-sized rock.
6. Place rock from east to west, maintaining safe distance from slide edge. Once stabilized, place
remaining rock and encapsulate with Class 5 Riprap.
7. Compact rock using excavator bucket.
8. Spread stockpiled topsoil and hydroseed.
9. Inspect sidewalk for damage and repair as needed.
Materials
· Silt Fence
· Plastic Sheeting
· Steel Sheets
· 3–5 Man Rock (Mixed)
· Class 5 Riprap
· Hydroseed
· Concrete (if sidewalk replacement is required)
Docusign Envelope ID: A67033E8-63C2-4E85-8BE2-707A0332DDF5
Project: #6245993 Tabor Crowall Revetment
Date: December 15, 2025
To: Mark Ruebel, Capital Strike Team Supervisor
River and Floodplain Management
Email: Mark.Ruebel@kingcounty.gov
Page 3
Contract #6245993 Tabor Crowall Revetment Construction Work Plan
Equipment
· 200-Class Excavator (rock placement)
· 320 Loader (sheet handling and stockpile management)
· Mini Excavator (site cleanup)
Inspection & Testing
Spec Section Test Description Responsible Party Timing
N/A Visual Inspection King County During rock
placement
Prerequisites & Safety
· Prerequisite: City of Renton must approve TCP before work begins.
· Hold pre-activity meeting.
· Stay clear of leading edge.
· Use spotters for pedestrian safety.
· Make eye contact with operators before entering work zone.
· Wear eye protection at all times.
· Stay clear of trucks during rock dumping.
Hazardous Material Control
· Place only clean rock in river channel.
· Ensure spill kit is onsite and fully stocked.
Special Events & Notifications
· Notify King County and City of Renton if riverbank erosion approaches roadway.
· Suspend work if river levels become unmanageable.
Important Notes
· Site conditions can change rapidly; inspect frequently for shifting embankments.
· Keep personnel away from slide edge until stabilized.
Docusign Envelope ID: A67033E8-63C2-4E85-8BE2-707A0332DDF5
Contract #6245993
Name: Tabor Crowall Revetment Site Preparation Plan
Silt Fence
Clearing Area
Topsoil Stockpile
Docusign Envelope ID: A67033E8-63C2-4E85-8BE2-707A0332DDF5
Contract #6245993
Name: Tabor Crowall Revetment Site Protection Stabilization Plan
Steel Plate 8x20
Coldmix Asphalt Ramp
Plastic Sheeting
Docusign Envelope ID: A67033E8-63C2-4E85-8BE2-707A0332DDF5
Contract #6245993
Name: Tabor Crowall Revetment Scour/Slide Repair Plan
Steel Plate 8x20
Coldmix Asphalt Ramp
Plastic Sheeting
Basalt Rocks
Sidedump trucks will haul to stockpile. A loader will be
utilized to manage stockpile
200 Class Excavator will take from stockpile and place
rock within the Scour area
Docusign Envelope ID: A67033E8-63C2-4E85-8BE2-707A0332DDF5
Scour/Slide Repair Plan
Contract #6245993
Name: Tabor Crowall Revetment
Place Mixed 3-5 Man Rock
Docusign Envelope ID: A67033E8-63C2-4E85-8BE2-707A0332DDF5
Scour/Slide Repair Plan
Contract #6245993
Name: Tabor Crowall Revetment
Place Class 5 Riprap
over Larger Rock
Docusign Envelope ID: A67033E8-63C2-4E85-8BE2-707A0332DDF5
Scour/Slide Repair Plan
Contract #6245993
Name: Tabor Crowall Revetment
60'-11"
Docusign Envelope ID: A67033E8-63C2-4E85-8BE2-707A0332DDF5
Scour/Slide Repair Plan
Contract #6245993
Name: Tabor Crowall Revetment
60'-11"
Docusign Envelope ID: A67033E8-63C2-4E85-8BE2-707A0332DDF5
Tabor/Crowall Grading Exhibit
Date Prepared - 06/13/2025
TC
D
S
TC
M
I
D
TC
U
S
30'-0"
Docusign Envelope ID: A67033E8-63C2-4E85-8BE2-707A0332DDF5
Tabor/Crowall Grading Exhibit
Date Prepared - 06/13/2025
proposed grade,
typ
existing grade,
typ
current river level (estimated and fluctuating)
pre-slide/scour bank per topo survey data
Current conceptual design final grading
(gray line type)
estimated slide/scour (based on
drone photo post-slide) (?)
possible residual slide debris at base on head
scarp (?) removal is highly recommended prior to
placement of geotextile and riprap to provide
suitable foundation base for armor.
16-oz non-woven
separation/filter geotextile for
riprap bedding (such as
Mirafi/Solmax 1160N. Secure
with pins
class 5 riprap (basalt or similar)for armoring(permanent or
temporary) red line type
setup paint marks/survey nails on road shoulder to
monitor movement
Docusign Envelope ID: A67033E8-63C2-4E85-8BE2-707A0332DDF5
Type Description Total Note/Unit
Summary
Equipment Excavator 30.5 Operating
Equipment Excavator 10.5 Standby
Equipment Wheel Loader 8 Operating
Equipment Wheel Loader 31 Standby
Equipment Tractor 67 Operating
Equipment Trailor 67 Operating
Material Steel plate 17 Each
Material Geotextile 0 0
Material Coir mat 5 Rolls
Material Asphalt cold mix 26 Tons
Material Large rock (basalt, 3-5 ma 307.93 Tons
Material Top soil 26 Tons
Material Straw 0 0
Material Seed 0 0
Material Quarry spall (4-8 inch) 26 Tons
Attachment CRECEIVED
01/29/2026 jding
PLANNING DIVISION
Docusign Envelope ID: A67033E8-63C2-4E85-8BE2-707A0332DDF5
12/15/2025 12/16/2025 12/17/2025 12/18/2025
Johansen & County met
on site at 07:00 to
discuss scope of work.
Both agreed to general
scope of work. County
provided notice to
proceed. Johansen
mobilized excavator and
loader to site.
Contractor cleared two
trees and flattened area
near slide. Steel plates
delivered/placed. Cold
mix installed as ramp.
11 trucks of rock
delivered throughout day.
Geotextile fabric laid
down. Rock added to
match existing slope.
~307.93 tons delivered
(~237 CY).
Quarry spalls (4-8")
delivered/spread to fill
voids. Top soil delivered
to cover disturbed soils
where steel plates were.
TCP utilized throughout
day.
0 8 6.5 8
8 0 2.5 0
0022
8856
4 4 40 0
4 4 40 0
017 0 0
0000
0000
026 0 0
0 0 307.93 0
00026
0000
0000
00026
Docusign Envelope ID: A67033E8-63C2-4E85-8BE2-707A0332DDF5
12/19/2025 12/22/2025
TCP setup. Haul off steel
plates, spread remaining
top soil and level ground.
Seed/mats placed.
Excavator tracked
out/smoothing. TCP
takedown/demob.
Johansen demobilized
excavator.
80
00
40
40
16 3
16 3
00
00
50
00
00
00
00
00
00
Docusign Envelope ID: A67033E8-63C2-4E85-8BE2-707A0332DDF5