HomeMy WebLinkAboutEX09_Transportation Concurrency Memo
DEPARTMENT OF COMMUNITY
AND ECONOMIC DEVELOPMENT
M E M O R A N D U M
DATE: July 30, 2021
TO: Brittany Gillia, Assistant Planner
FROM: Brianne Bannwarth, Development Engineering Manager
SUBJECT: Traffic Concurrency Test – Mahal Short Plat
(13436 156th Avenue SE); LUA21-000078
The applicant is requesting approval of a Preliminary Short Plat and one street modification for
the proposed subdivision of an existing 29,104 square foot (0.67 acre) lot into two lots. The
subject property is located at 13436 156th Ave SE (Parcel number 3664500280) and is located
within the Residential-4 (R-4) zone and Residential Low Density (LD) land use designation. The
proposed residential density is 3.4 dwelling units per net acre. One single family residence and
one detached accessory structure are presently on the subject property and are proposed for
removal. The proposed residential lot sizes are 10,438 SF for Lot 1 and 15,138 SF for Lot 2. Access
to the new lots is proposed via a 2,799 SF shared driveway tract that extends from 156th Ave SE.
The proposal includes 5.5 feet of public right of way dedication and frontage improvements along
156th Ave SE.
The proposed development would generate approximately 9 net new average weekday daily
trips. During the weekday AM peak hour, the project would generate approximately 1 net new
trips (0 inbound and 1 outbound). During the weekday PM peak hour, the project would generate
approximately 1 net new trips (1 inbound and 0 outbound). The proposed project passes the City
of Renton Traffic Concurrency Test per RMC 4-6-070.D as follows:
Transportation Concurrency Test – Mahal Short Plat
Page 2 of 3
July 30, 2021
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 130% of the scheduled expenditure through 2020.
Within allowed growth levels: The citywide traffic concurrency trip capacity for concurrency with
the city adopted model for 2021 is 1,169 trips, which provides sufficient capacity to
accommodate approximately 1 additional trip from this project. A resulting 1,168 trips are
remaining.
Project subject to transportation mitigation or impact fees: The project will be subject to
transportation impact fees at time of building permit 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 SEPA or 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.
Transportation Concurrency Test – Mahal Short Plat
Page 3 of 3
July 30, 2021
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.