HomeMy WebLinkAboutEx16_Transportation Concurrency MemoDEPARTMENT OF COMMUNITY
AND ECONOMIC DEVELOPMENT
M E M O R A N D U M
DATE: June 10, 2022
TO: Clark Close, Principal Planner
FROM: Brianne Bannwarth, Development Engineering Director
SUBJECT: Traffic Concurrency Test – Wang Short Plat
(19016 116th Ave SE -APN 6198400125); LUA22-000174
The applicant is requesting preliminary short plat approval to subdivide a property into seven (7)
residential lots, one (1) stormwater/recreation tract, and one (1) landscape tract. The project site
(Tax Parcel 6198400125) is located at 19016 116th Ave SE and totals approximately 89,152
square foot (2.05 acres) in area and is zoned Residential-4 (R-4). The project site has an even and
gradual slope from west to east with a fall of approximately 12 feet. A building permit was issued
to demolish the 1,350 square foot (SF) single family residence and the 670 SF detached garage
and returned to level grade. The proposed lots range in size from 9,000 SF to 9,975 SF in area
with an average lot size of 9,176 SF and a net density of 4.1 dwelling units per acre (du/ac). Tract
A is proposed as a 9,155 SF stormwater vault and was sized to contain a live storage volume of
22,650 cubic yards at a depth of 4.75 feet. Tract B is proposed as a thin 870 SF private landscape
tract along most of the south property line. The property is bordered to the west by 116th Ave
SE and connects to SE 191st St at the southeast portion of the property. A new modified limited
residential access road consisting of a 20-foot paved surface, 0.5-foot wide curb, and a 5-foot
wide sidewalk is proposed as a right-of-way access road along the south part of the lots to provide
access to the new residential lots and to connect SE 191st St to 116th Ave SE. The applicant is
requesting a street modification to reduce the roadway width for 116th Ave SE to meet the
established corridor plan for this section of 116th Ave SE. In addition, the applicant is requesting
a modified residential street section with a 0.5-foot wide curb, 5-foot wide sidewalk, and a 5-foot
wide planter on SE 191st St to transition the existing roadway into the development at 117th Pl
SE. No critical areas were identified on the subject property.
The proposed development would generate approximately 57 net new average weekday daily
trips. During the weekday AM peak hour, the project would generate approximately 4 net new
trips (1 inbound and 3 outbound). During the weekday PM peak hour, the project would generate
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June 6, 2022
approximately 6 net new trips (4 inbound and 2 outbound). The proposed project passes the City
of Renton Traffic Concurrency Test per RMC 4-6-070.D as follows:
Traffic Concurrency Test Criteria Pass
Implementation of citywide Transportation Plan Yes
Within allowed growth levels Yes
Project subject to transportation mitigation or impact fees Yes
Site specific street improvements to be completed by project Yes
Traffic Concurrency Test Passes
Evaluation of Test Criteria
Implementation of citywide Transportation Plan: The City’s investment in completion of the
forecast traffic improvements is 100% of the scheduled expenditure through 2022.
Within allowed growth levels: The citywide traffic concurrency trip capacity for concurrency with
the city adopted model for 2022 is 818 trips, which provides sufficient capacity to accommodate
approximately 6 additional trips from this project. A resulting 812 trips are remaining.
Project subject to transportation mitigation or impact fees: The project will be subject to
transportation impact fees at time of building permits for the project.
Site specific street improvements to be completed by project: The project will be required to
complete frontage street improvements prior to final short plat recording. Any additional off-site
improvements identified through land use approval will also be completed prior to final short
plat recording.
Background Information on Traffic Concurrency Test for Renton
The City of Renton Traffic Concurrency requirements for proposed development projects are
covered under Renton Municipal Code (RMC) 4-6-070. The specific concurrency test requirement
is covered in RMC 4-6-070.D, which is listed for reference:
D. CONCURRENCY REVIEW PROCESS:
1. Test Required: A concurrency test shall be conducted by the Department for each
nonexempt development activity. The concurrency test shall determine consistency with
the adopted Citywide Level of Service Index and Concurrency Management System
established in the Transportation Element of the Renton Comprehensive Plan, according
to rules and procedures established by the Department. The Department shall issue an
initial concurrency test result describing the outcome of the concurrency test.
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June 6, 2022
2. Written Finding Required: Prior to approval of any nonexempt development activity
permit application, a written finding of concurrency shall be made by the City as part of
the development permit approval. The finding of concurrency shall be made by the
decision maker with the authority to approve the accompanying development permits
required for a development activity. A written finding of concurrency shall apply only to
the specific land uses, densities, intensities, and development project described in the
application and development permit.
3. Failure of Test: If no reconsideration is requested, or if upon reconsideration a project
fails the concurrency test, the project application shall be denied by the decision maker
with the authority to approve the accompanying development activity permit application.
The Concurrency Management System established in the Transportation Element on page XI-65
of the Comprehensive Plan states the following:
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, development will have met City of
Renton concurrency requirements.