HomeMy WebLinkAboutERC Report and Exhibits_Renton Commons_16-000425.pdfDEPARTMENT OF COMMUNITY
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ERC Report (3)
ENVIRONMENTAL REVIEW COMMITTEE REPORT
ERC MEETING DATE: July 25, 2016
Project Name: Renton Commons
Project Number: LUA16-000425, CU-H, SA-H, ECF, MOD, MOD, MOD
Project Manager: Rocale Timmons, Senior Planner
Owner: Low Income Housing Institute; 2407 First Ave; Seattle, WA 98121
Contact: Pamela Derry; Tonkin Architecture; 204 First Ave; Seattle, WA 98104
Project Location: 215 Whitworth Ave S
Project Summary: The Low Income Housing Institute (LIHI) is requesting Hearing Examiner Site Plan
Review, Hearing Examiner Conditional Use Permit, Environmental 'SEPA' Review, and
three modifications for the construction of a 6-story building containing 48 affordable
multi-family residential units. The structure would have an average height of 64 feet.
The 0.32 acre site is located within the Center Downtown (CD) zoning classification on
the west side of Whitworth Ave S just north of S 3rd St at 215 Whitworth Ave S.
Vehicular access to the site would be provided via a single entry point from Whitworth
Ave S. A total of 12 parking spaces would be provided within the structure. A refuse
and recycle modification, from RMC 4-4-090, is being requested in order to reduce the
number of required deposit and collection points as well as the size requirements. A
bicycle parking modification, from RMC 4-4-050, is being requested in order to reduce
the number of required bicycle parking from 24 to 20 stalls. Finally, the applicant is
requesting a street modification, from RMC 4-6-060, in order to maintain the existing
60-foot right-of-way, without dedication, and alter the required street cross section.
The site is located within a Seismic Hazard Area. There appears to be no other critical
areas located on site.
Site Area: 13,915 SF Total Building Area GSF: 46,215 SF
STAFF
RECOMMENDATION:
Staff Recommends that the Environmental Review Committee issue a Determination
of Non-Significance - Mitigated (DNS-M).
City of Renton Department of Community & Economic Development Environmental Review Committee Report
RENTON COMMONS LUA16-000425,
Report of July 25, 2016 Page 2 of 8
ERC Report (3)
PART ONE: PROJECT DESCRIPTION / BACKGROUND
The applicant is requesting Hearing Examiner Site Plan Review, Hearing Examiner Conditional Use Permit,
Environmental 'SEPA' Review, and three modifications for the construction of a 6-story building containing 48
affordable multi-family residential units.
The project site is located on the west side of Whitworth Ave S between S 2nd St and S 3rd St. The site is located
within the Center Downtown (CD) zoning classification and the Commercial Mixed Use (CMU) Comprehensive Plan
land use designation.
The northeastern portion of the site is developed with a two-story single family residence, proposed for demolition.
The undeveloped portion of the site is vegetated with grass, shrubbery and scattered trees. Vehicular access to the
site is proposed via Whitworth Ave S. The proposal is served by a 12 parking stalls within an at-grade structured
parking area.
The applicant is proposing the construction of a large 19,795 square foot landscaped community open space at the
southern portion of the site. The community open space incorporates active and passive space, with a central
connecting sidewalk which links the open space to the public right of way. A central path and complementing
pedestrian bridge crossing is proposed to be constructed to create an access point to the community open space
from the surface parking lot.
There are three existing trees located within the right-of-way which are proposed for removal. Preliminary
earthwork for the proposal includes 100 cubic yards of excavation and 300 yards of fill.
A refuse and recycle modification, from RMC 4-4-090, is being requested in order to reduce the number of required
deposit and collection points as well as the size requirements. A bicycle parking modification, from RMC 4-4-050, is
being requested in order to reduce the number of required bicycle parking from 24 to 20 stalls. Finally, the
applicant is requesting a street modification, from RMC 4-6-060, in order to maintain the existing 60-foot right-of-
way, without dedication, and alter the required street cross section.
The proposed construction is expected to start in mid-September 2017. Construction is expected to be completed
by the end of October 2018.
Staff received a single comment letter, from the Department of Archaeology and Historic Preservation, regarding the
potential of archaeological deposits on site (Exhibit 9).
Studies provided by the applicant include a stormwater report, traffic study, and a geotechnical.
PART TWO: ENVIRONMENTAL REVIEW
In compliance with RCW 43.21C.240, the following environmental (SEPA) review addresses only those project
impacts that are not adequately addressed under existing development standards and environmental regulations.
A. Environmental Threshold Recommendation
Based on analysis of probable impacts from the proposal, staff recommends that the Responsible Officials:
Issue a DNS-M with a 14-day Appeal Period.
B. Mitigation Measures
1. A survey shall be submitted to the Current Planning Project Manager that conforms to the requirements
and standards of the Washington State Office of Archaeology and Historic Preservation and must be
conducted under the on-site supervision of a state-approved archaeologist prior to construction permit
approval.
City of Renton Department of Community & Economic Development Environmental Review Committee Report
RENTON COMMONS LUA16-000425,
Report of July 25, 2016 Page 3 of 8
ERC Report (3)
C. Exhibits
Exhibit 1 ERC Report
Exhibit 2 Site Plan
Exhibit 3 Landscape Plan
Exhibit 4 Elevations
Exhibit 5 Grading Plan
Exhibit 6 Geotechnical Report, prepared by Geotech Consultants (dated July 21, 2015)
Exhibit 7 Drainage Report, prepared by Site Wise Design (dated June 7, 2016)
Exhibit 8 Traffic Impact Analysis, prepared by Gibson Traffic Consultants (dated April 18, 2016)
Exhibit 9 Department of Archeology and Historic Preservation Comment letter (dated July 6,
2016)
Exhibit 10 Preliminary Archaeological Assessment, prepared by Wilamette Cultural Resources
(dated May 20, 2016)
D. Environmental Impacts
The Proposal was circulated and reviewed by various City Departments and Divisions to determine whether the
applicant has adequately identified and addressed environmental impacts anticipated to occur in conjunction
with the proposed development. Staff reviewers have identified that the proposal is likely to have the following
probable impacts:
1. Earth
Impacts: The site can best be characterized as relatively flat with the western side of the site sloping gently
down toward the southwest to northwest from a high point near the center of the site. The northwest
corner of the site has the lowest elevation. There is a change in elevation on the order of five feet across
the site. The majority of the slopes on site are moderate, ranging from 1-4%. The steepest slope on the site
is approximately 32%, which is a man-made depression which is proposed to be leveled as part of
construction.
The applicant is proposing excavation in the amount of approximately 100 cubic yards. Approximately 300
cubic yards of fill is proposed. Following construction the applicant is proposing an impervious cover of
approximately 88% of the net site area. It should be noted that a 1,164 square foot vegetated roof is
proposed.
The applicant submitted a Geotechnical Report prepared by Geotech Consultants, dated July 21, 2015
(Exhibit 6). The loose to medium-dense sand soils that are saturated are susceptible to seismic liquefaction.
As a result, the proposal includes a deep foundation system supported by pipe piles to reduce the potential
for uneven settlement. Groundwater seepage was observed at depths of 12-14 feet. The seepage levels
represent transient water seepage water and likely do not indicate static groundwater.
The geotechnical report includes specific recommendations in order to mitigate potential geotechnical
impacts including: site preparation, structural fill, foundations, drainage considerations, hazards including,
and project design and monitoring. The applicant will be required to demonstrate compliance with the
recommendations included in the provided Geotechnical Engineering Report with the building permit
application and during construction (Exhibit 6).
Removal of the existing vegetated cover during construction would leave soils susceptible to erosion. T he
applicant will be required to design a Temporary Erosion and Sedimentation Control Plan (TESCP) pursuant
to the 2009 King County Surface Water Design Manual Erosion and Sediment Control Requirements.
Mitigation Measures: No further mitigation needed
Nexus: Not applicable
City of Renton Department of Community & Economic Development Environmental Review Committee Report
RENTON COMMONS LUA16-000425,
Report of July 25, 2016 Page 4 of 8
ERC Report (3)
2. Water
a. Storm Water
Impacts: The site is located within the Black River drainage basin. The existing roof drainage is collected via
roof downspouts and conveyed to the existing PSS in Whitworth Ave S. Runoff from landscaped areas
appears to sheet flow off the site. There is no formal site drainage collection or conveyance system evident.
There is an existing 6-inch storm drain east of the site in Whitworth Ave S which flows north. There is also
an existing 12-inch storm drain north of the site in the Seattle Public Utilities right of way which flows west.
This project is required to comply with the 2009 King County Surface Water Manual and the City of Renton
Amendments to the KCSWM, Chapter 1 and 2. Based on the City’s flow control map, this site falls within the
Peak Flow Control Duration Standard, Existing Conditions. This project is subject to full drainage review. The
applicant submitted a Preliminary Drainage Report prepared by Sitewise Design, dated June 9, 2016 (Exhibit
7).
The report also includes a detailed summary of the pre and post developed conditions. Stormwater runoff
from the proposed improvements would be collected via roof drains, catch basins, and area drains. Runoff
would be routed to a duplex pump chamber and would be discharged to the existing storm main in the SPU
right-of-way to the north of the project site. Connection to the existing storm drainage system in Whitworth
Ave S is preferred over a connection to the existing storm drainage system in the SPU right-of-way. Work in
the right-of-way may require additional permit and coordination with Seattle Public Utilities and the City of
Seattle. As a condition of site plan approval the applicant shall provide SPU authorization to work with the
SPU right of way before construction permits are issued.
Flow control is not required as the project will create less than a 0.1 cfs increase in the existing site
condition’s 100 year peak flow. Water quality is also not required as the project will create less than 5,000
SF of new and replaced pollution generated impervious surfaces. The report includes a proposal for the use
of a vegetated roof and permeable pavement for the flow control BMP. Required flow control BMPs shall
be in accordance with Section 1.2.3.3 and Section 5.2 of the 2009 KCSWDM.
Mitigation Measures: No further mitigation needed
Nexus: Not applicable
3. Transportation
Impacts: The applicant submitted a Traffic Impact Analysis prepared by Gibson Traffic Consultants, Inc.,
dated April 18, 2016 (Exhibit 8). The provided TIA was found to meet the intent of the TIA guidelines and is
generally acceptable for preliminary review.
Level of Service: It is anticipated that the proposed development would generate approximately 201 average
daily trips with 14 new AM peak-hour trips and 46 PM peak-hour trips. It is anticipated that trips generated
by the Renton Commons development will split 50% traveling to and from the north and 50% traveling to
and from the south. The development will impact off-site City of Renton intersections with less than 10
peak-hour trips impacting any public intersections. Therefore, additional analysis of impacts to surrounding
intersections is not required based on City of Renton threshold requirements.
Increased traffic created by the development would be mitigated by payment of transportation impact fees.
The transportation impact fee that is current at the time of building permit application will be levied. The
fee currently being assessed, in 2016, is $1,923.83 per new multi-family unit. The fee is estimated at
approximately $92,343.84. The fee shall be payable to the City at the time of building permit issuance.
Street Improvements: Street Improvements are regulated by RMC 4-6-060 – Street Standards. See below:
Whitworth Ave S – Whitworth Ave S is classified as a residential access street. The existing right-of-way
width is 60-feet. This portion of Whitworth Ave S falls within the City’s downtown planning area. The City’s
Downtown Streetscape Design Standards and Guidelines apply. Street improvements fronting this site
would be required to include a new 12-foot sidewalk, street trees (4-foot x 8-foot grates) behind the curb,
City of Renton Department of Community & Economic Development Environmental Review Committee Report
RENTON COMMONS LUA16-000425,
Report of July 25, 2016 Page 5 of 8
ERC Report (3)
and street lighting meeting City’s arterial street lighting levels. Additionally, a 5-foot wide bike lane is
required. The applicant is proposing to maintain the existing right-of-way and as a result the applicant has
requested a modification to remove the 5-foot bike lane requirement.
As part of the Site Plan/Conditional Use Permit recommendation to the Hearing Examiner staff will likely be
recommending approval of the requested modification. The existing pavement section from curb to curb is
acceptable. Staff will likely be recommending conditions of approval to require up to four feet be required
to be placed in a pedestrian easement immediately adjacent to the right-of-way to accommodate the
proposed 12-foot wide sidewalk and the existing curb shall be replaced in the same location per City
standards.
Pedestrian Improvements: As part of the proposed project, sidewalks would be constructed along the
frontage of the site and would connect to the existing sidewalk system.
Concurrency - A concurrency recommendation will be provided in the staff report to Hearing Examiner
based upon the test of the citywide Transportation Plan, consideration of growth levels included in the LOS‐
tested Transportation Plan, payment of a Transportation Mitigation Fee, and an application of site specific
mitigation. The development will have to meet the City of Renton concurrency requirements.
Mitigation Measures: No further mitigation needed
Nexus: Not applicable
4. Historic and Cultural Preservation
Impacts: It is possible that archaeological artifacts or a historic site could be encountered during project
construction. This is due to the site’s proximity to former archaeological discoveries. Archaeological sites
are protected from disturbance on both public and private lands in Washington State. Preliminary field
investigations have been completed by Wilamette Cultural Resources Associates Ltd (Exhibit 10). The
investigations yield only modern debris, and did not uncover any material evidence of archaeological
significance. Staff received a comment letter, from the Department of Archeology and Historic Preservation,
requesting a survey be submitted in conformance with the requirements and standards of the Washington
State Office of Archaeology and Historic Preservation.
Therefore, staff recommends, as a mitigation measure, that a survey be submitted that conforms to the
requirements and standards of the Washington State Office of Archaeology and Historic Preservation and
must be conducted under the on-site supervision of a state-approved archaeologist prior to construction
permit approval.
In addition to the survey, should evidence of a historic site be found during site development, work shall
immediately cease and the Washington State of Archaeology and Historic Preservation shall be contacted at
(360) 586-3065. In the event that cultural artifacts are found, work cannot recommence until approval is
received from the Office of Archaeology and Historic Preservation.
Mitigation Measures: A survey shall be submitted to the Current Planning Project Manager that conforms to
the requirements and standards of the Washington State Office of Archaeology and Historic Preservation
and must be conducted under the on-site supervision of a state-approved archaeologist prior to
construction permit approval. Should evidence of a historic site be found during site development, work
shall immediately cease and the Washington State of Archaeology and Historic Preservation shall be
contacted at (360) 586-3065. In the event that cultural artifacts are found, work cannot recommence until
approval is received from the Office of Archaeology and Historic Preservation.
Nexus: SEPA Environmental Regulations
E. Comments of Reviewing Departments
The proposal has been circulated to City Department and Division Reviewers. Where applicable, their
comments have been incorporated into the text of this report and/or “Advisory Notes to Applicant.”
City of Renton Department of Community & Economic Development Environmental Review Committee Report
RENTON COMMONS LUA16-000425,
Report of July 25, 2016 Page 6 of 8
ERC Report (3)
Copies of all Review Comments are contained in the Official File and may be attached to this report.
The Environmental Determination decision will become final if the decision is not appealed within the 14-day
appeal period (RCW 43.21.C.075(3); WAC 197-11-680).
Environmental Determination Appeal Process: Appeals of the environmental determination must be filed in
writing together with the required fee to: Hearing Examiner, City of Renton, 1055 South Grady Way, Renton, WA
98057, on or before 5:00 p.m. on April 29, 2016. RMC 4-8-110 governs appeals to the Hearing Examiner and
additional information regarding the appeal process may be obtained from the City Clerk’s Office, Renton City Hall –
7th Floor, (425) 430-6510.
ADVISORY NOTES TO APPLICANT
The following notes are supplemental information provided in conjunction with the administrative land use
action. Because these notes are provided as information only, they are not subject to the appeal process for the
land use actions.
Planning:
1. RMC section 4-4-030.C.2 limits haul hours between 8:30 am to 3:30 pm, Monday through Friday unless otherwise
approved by the Development Services Division.
2. Commercial, multi-family, new single family and other nonresidential construction activities shall be restricted to the
hours between seven o’clock (7:00) a.m. and eight o’clock (8:00) p.m., Monday through Friday. Work on Saturdays
shall be restricted to the hours between nine o’clock (9:00) a.m. and eight o’clock (8:00) p.m. No work shall be
permitted on Sundays.
3. Within thirty (30) days of completion of grading work, the applicant shall hydroseed or plant an appropriate ground
cover over any portion of the site that is graded or cleared of vegetation and where no further construction work will
occur within ninety (90) days. Alternative measures such as mulch, sodding, or plastic covering as specified in th e
current King County Surface Water Management Design Manual as adopted by the City of Renton may be proposed
between the dates of November 1st and March 31st of each year. The Development Services Division’s approval of
this work is required prior to final inspection and approval of the permit.
4. The applicant may not fill, excavate, stack or store any equipment, dispose of any materials, supplies or fluids, operate
any equipment, install impervious surfaces, or compact the earth in any way within the area defined by the drip line of
any tree to be retained.
5. The applicant shall erect and maintain six-foot (6') high chain link temporary construction fencing around the drip lines
of all retained trees, or along the perimeter of a stand of retained trees. Placa rds shall be placed on fencing every fifty
feet (50') indicating the words, “NO TRESPASSING – Protected Trees” or on each side of the fencing if less than fifty
feet (50'). Site access to individually protected trees or groups of trees shall be fenced and signed. Individual trees
shall be fenced on four (4) sides. In addition, the applicant shall provide supervision whenever equipment or trucks are
moving near trees.
6. This permit is shall comply with the Bald and Golden Eagle Protection Act. The permitted i s responsible for adhering
to the U.S. Fish and Wildlife Service National Bald Eagle Management Guidelines (2007) and /or your U.S. Fish and
Wildlife Service permit.
Water:
1. A 12-inch water main is proposed east of the site in Whitworth Avenue S. from S. 3rd Street north to S 2nd Street. The
new main will provide the site with increased fireflow by providing a connection between the existing 12 -inch mains in
S 2nd St and S 3rd St. The water main shall be designed and constructed in accordance with Appendi x J of the City’s
2012 Water System Plan. Adequate horizontal and vertical separation between the new water main and other
existing and proposed utilities (sewer lines, storm drains, gas lines, power and communication ducts) shall be provided
for the operation and maintenance of the water main. A profile for the length of the water main is required for utility
permit review.
2. The connection at S. 2nd Street shall be made by a 12-inch x 12-inch tee. This will require replacement of the existing
12-inch x 8-inch tee. An 8-inch reducer shall be installed north of the new tee to provide a connection to the existing
City of Renton Department of Community & Economic Development Environmental Review Committee Report
RENTON COMMONS LUA16-000425,
Report of July 25, 2016 Page 7 of 8
ERC Report (3)
8-inch main. Existing water services along this portion of Whitworth Avenue S. will be reconnected to the new 12 -inch
main.
3. Cathodic pipe protection is required for the crossing of the SPU transmission mains. Cathodic protection design and
review shall be coordinated with SPU and the City. A “Utility Consent Letter” from SPU shall be obtained.
4. The domestic water meter shall be sized in accordance with the latest edition of the Uniform Plumbing Code. Sizing
calculations shall be provided to the City. Meters 3” or larger, shall be installed in a concrete vault located outside of
the building per COR Standard Plan 320.4. By-pass piping, valves, and associated piping shall be purchased and
installed by the developer / contractor under City observation for meters 3 -inch or larger.
5. A double check valve assembly (DCVA) shall be installed behind the domestic water meter in accordance wit h the
standards found in Appendix J of the City’s 2012 Water System Plan.
6. A fire sprinkler stub with a double detector check assembly (DDCVA) in an exterior underground vault per COR
Standard Plan 360.1 shall be installed for backflow prevention. The DDCV A may be installed inside the building if it
meets the conditions as shown on COR Standard Plan 360.5 for the installation of a DDCVA inside a building.
7. Fire hydrants shall be installed as required by the Renton Fire Authority.
8. A separate meter is required for landscape irrigation per COR Standard Plan 320.1. A double check valve assembly
(DCVA) is required behind the meter per COR Standard Plan 340.8.
9. The existing water meter serving the existing residence shall be removed. The existing service sha ll be capped at the
main in accordance with City standards.
10. Location of backflow assemblies inside the building is strongly encouraged. All vault and meter lids in the sidewalk
shall conform to the City’s Downtown Streetscape Design Standards and Guidelines.
11. The development is subject to applicable water system development charges (SDCs) and meter installation fees based
on the number and size of the meters for domestic use and fire prevention. Meters greater than 2-inch will be
charged a $220.00 processing fee and the contractor will provide the meter and install it. A system development fee
credit will be issued for the meter that is being removed. The full water fee schedule can be found in the City’s 2016
development fees document on the City’s website.
Sewer:
1. The replacement of the existing 6-inch sewer main is not required as part of this project. This main will be replaced in
the near future as part of a City of Renton capital improvement project.
2. The connection to the existing 6-inch main shall be made by a new connection and stub. Use of the existing stub is not
permitted.
3. The side sewer shall be a 6-inch and shall have a minimum slope of 2%.
4. The development is subject to applicable sewer system development charges (SDCs) for sewer service. The SDC for
sewer service is based on the size of the domestic water service. A system development fee credit will be issued for
the existing sewer service being abandoned. The full sewer fee schedule can be found in the City’s 2016 developmen t
fees document on the City’s website.
Drainage:
1. Pumped stormwater systems will only be considered if no gravity option exists. A thorough review of all possible
gravity connections to the existing storm drainage system is required from the engineer in th e TIR. The City is willing
to work with the applicant to find a gravity drainage solution for the site as part of the utility permit review.
2. In the event that a gravity connection is infeasible, a pump system may be considered if all requirements in Sec tion
4.2.3 of the 2009 KCSWDM as amended by the City of Renton are met. The pump system must be privately owned
and maintained. The pump system shall have either installed emergency backup power or the ability for portable
backup power generator in the e vent of a loss of primary power. The applicant must provide an emergency response
plan with details on how backup power will be activated during an emergency and include the method for delivering
to the site and energizing the portable backup power. Plea se refer to the amended Section 4.2.3 for the complete
requirements for pumped stormwater discharge.
3. The survey and civil plans shall be updated to include additional information about the existing 12 -inch storm drain in
the SPU easement. Include survey data of downstream and upstream structures. Confirm the direction of pipe flow
and the downstream drainage path.
4. If the project discharges to the storm drain in Whitworth Avenue S., the existing 6 -inch storm drain in Whitworth
Avenue S. may need to be upsized. Additional conveyance calculations would be required.
5. The project is subject to a system development charges (SDC) for stormwater. The current SDC is $0.594 per square
foot of new impervious surface area, but not less than $1,485.00.
6. Effective January 2, 2017, the City of Renton will be adopting a new stormwater manual which will be based on the
2016 King County Surface Water Design Manual. All projects vested after January 2, 2017 will be subject to these new
stormwater requirements. Please refer to RMC 4-1-045 for information regarding project vesting.
City of Renton Department of Community & Economic Development Environmental Review Committee Report
RENTON COMMONS LUA16-000425,
Report of July 25, 2016 Page 8 of 8
ERC Report (3)
Transportation:
1. The maximum slope back of sidewalk is 4H: 1V for minimum 3 feet back of the sidewalk.
2. The corner curb ramps at all street intersections adjacent to the site should be ADA complian t. ADA also requires
matching ADA compliant curb ramps on the other side of the intersection.
3. Street lighting is required to be provided on the frontage streets by the project.
4. The City of Renton Trench restoration and Street overlay requirements will be applicable for any work in the public
right of way.
Fire:
1. Fire impact fees are applicable at the rate of $495.10 per multifamily unit. This fee is paid at time of building permit
issuance. Credit will be granted for the one unit structure removed.
2. The preliminary fire flow is 2,500 gpm. A minimum of three fire hydrants are required. One within 150 feet and two
within 300 feet of the building. One hydrant is required within 50 feet of all fire department connections for
standpipes and sprinkler systems. Existing hydrants may be counted toward the requirements as long as they meet
current code. Fire flows exceeding 2,500 gpm require looped water mains around the building or group of buildings.
Water main in Whitworth Avenue South is only a 4 inch size d main and shall be replaced with an adequately sized
water main in order to meet fire flow demand.
3. Approved fire sprinkler and fire alarm systems are required throughout the building. Dry standpipes are required in all
stairways. Direct outside access is required to the fire sprinkler riser room. Fire alarm system is required to be fully
addressable and full detection is required. Separate plans and permits required by the fire department.
4. Fire department apparatus access roadways are adequate as they exist.
5. An electronic site plan is required prior to occupancy for pre fire planning purposes.
6. Building shall be equipped with an elevator meeting the size requirements for a bariatric size stretcher. Car size shall
accommodate a minimum of a 40 inch by 84 inch stretcher.
Parks:
1. Park Impact Fees per Ordinance 5670 applies.
General:
1. All construction or service utility permits for drainage and street improvements will require separate plan submittals.
All utility plans shall conform to the Renton Drafting Standards. Plans shall be prepared by a licensed Civil Engineer.
2. When utility plans are complete, please submit four (4) copies of the drawings, two (2) copies of the drainage report,
permit application, an itemized cost of construction estimate, and application fee at the counter on the sixth floor.
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FULL DOCUMENT AVAILABLEGEGTEC1IUPONREQUEST 13256 Northeast 20th Stieet,Suite 16
CONSULTANTS,INC.425)747-5618 GEOTECBNW.COM
July31,2015
JN 15274
Low income Housing Institute for Renton Commons LLC
2407 First Avenue
Seattle,Washington 98121
Attention:Robin Amadon via email:ramadon@jihi.org
Subject:Transmittal Letter —Geotechnical Engineering Study
Proposed Apartment Building
215 Whitworth Avenue South
Renton,Washington
Dear Ms.Amadon:
We are pleased to present this geotechnicaf engineering report for the apartment building to be
constructed in Renton,Washington.The scope of our services consisted of exploring site surface
and subsurface conditions,and then developing this report to provide recommendations for general
earthwork and design criteria for foundations and retaining walls.This work was authorized by your
acceptance of our proposal,P-9192,dated May 15,2015.
The attached report contains a discussion of the study and our recommendations.Please contact
us if there are any questions regarding this report,or for further assistance during the design and
construction phases of this project.
Respectfully submitted,
GEOTECH CONSULTANTS,INC.
Thor Christensen,P.2.
Senior Engineer
TRC/DRW:at
EXHIBIT 6
GEOTECH CONSULTANTS,INC.
esign PLLC
FULL DOCUMENT AVAILABLE
UPON REQUEST
A CIVIL ENGINEERING COMPANY
219 First Avenue S.,Suite 401
Seattle,WA 98104
206.402.4644
CONDITIONAL USE PERMIT
TECHNICAL IN FORMATION REPORT
Project:
Prepared For:
Prepared By:
Reviewed By:
Date:
Renton Commons
215 Whitworth Ave
Renton,WA 98057
Tonkin Architecture
204 1st Ave South
Seattle,WA 98104
Ryan Yokum,EIT
Marc Errichetti,PE
June 7,2016
EXHIBIT 7
MEMORANDUM
Eric Blank,Low Income Housing Institute
Brad Lincoln,PE
Renton Commons
GTC #16-088
Traffic Analysis
April 18,2016
EXHIBIT $Wetmore Avenue•Suite 220 Everett WA,98201
-8266 Fax:425-258-2922 E-mail:info@gibsontraffic.com
GTrspc
Gibson Traffic
FULL DOCUMENT AVAILABLE
UPON REQUEST
To:
From:
Project:
Subject:
Date:
This memorandum summarizes the trip generation calculations for the Renton Commons
development.The development is located on the west side of Whitworth Avenue $,between S 2m1
Street and S 3’’Street.The development is proposed to consist of a 6-story,48-unit apartment building
for low-income housing.A site vicinity map in included in Figure 1.
Figure 1:Site Vicinity
i i FULL DOCUMENT AVAILABLEaUPONREQUEST
July 6,2016
Ms.Rocale Timmons
Associate Planner
City of Renton
1055 South Grady Way
Renton,WA98507
In future conespondence please refer to:
Project Tracking Code:2016-04-02586
Property:LUA16-000425,ECF,SA-H,CU-H MOD Renton Commons
Re:Archaeology -Survey Requested,More information requested
Dear Ms.Timmons:
Thank you for contacting the Washington State Historic Preservation Officer (SHPO)and Department of
Archaeology and Historic Preservation (DAHP)and providing documentation regarding the above
referenced project.As a result of our review,our professional opinion is that the project area has the
potential to contain archaeological resources.Identification of cultural resources during construction is
not a recommended detection method because inadvertent discoveries often result in costly construction
delays and damage to the resource.We request a professional archaeological survey of the project area be
conducted prior to ground disturbing activities.The survey should be provided to DAHP and the
interested Tribes prior to ground disturbance.We also recommend consultation with the concerned
Tribes’cultural committees and staff regarding cultural resource issues.
If any federal funds or permits are associated with this proposal,Section 106 of the National Historic
Preservation Act,as amended,and its implementing regulations,36 CFR 800,must be followed.This is a
separate process from both the NEPA and SEPA environmental review processes and requires formal
government-to-government consultation with the affected Tribes and the SHPO.Also,we appreciate
receiving any correspondence or comments from concerned tribes or other parties concerning cultural
resource issues that you receive.
EXHIBIT 9
1
FULL DOCUMENT AVAILABLE
UPON REQUEST
_______
Willamette Cultural Resoufccs Associates,Ltd.
Archaeology [-hstorv Lthnographv
INTERIM MEMORANDUM
Preliminary Archaeological Assessment for the Proposed Renton Commons Project
Renton Washington
Stephenie Kramer,M.S.
May 20,2016
Introduction
The Low Income Housing Institute (LIH1)proposes construction of the Renton Commons,a
multi-family housing development at 215 S.Whitworth Avenue in downtown Renton,Washington.
LIHI contracted with Wifiamette Cultural Resources Associates Ltd.(WifiametteCRA),to conduct
an archaeological assessment of the proposed project area.WifiametteCRA has commenced working
on the survey project;this brief memorandum summarizes current field information and progress,
provides information regarding the results of archaeological background research and field survey
and preliminary conclusions based on those findings,and supports the project through the City of
Renton’s application intake process.A full report that describes the natural and cultural setting of
the project and full discussion of methods,results,conclusions,and recommendations will be
forthcoming.
The project site is on approximately 1/3 acre currently occupied by a single family dwelling at
215 Whitworth Avenue S.,in the City of Renton,King County,Washington (Figure 1).It is a single
parcel between 2’and 3t Streets in downtown Renton (Figure 2),T23N RO5E,Section 18.The
eastern half of the project parcel is occupied by a single family home (parcel 7841800090),
constructed in 1930 according to the King County Assessor’s Office.The western half is a
residential lawn and ornamental shrubs.
The project as proposed would consist of demolition of the existing structure and construction
of a six-story building that includes multiple residential units,common areas,classrooms,parking,
and utility line upgrades.Design specifications may include a foundation that will be a structural slab
EXHIBIT 10
650 South Orcas St.,Suite 201
Seattle,Washington 98108
206-397-1487