City of Tukwila
Southcenter Boulevard Signal
65th Avenue S
TIB Award Amount
$782,090
Region: Puget Sound   |   Legislative District: 11   |   Length: 0.10 mi. FY 2025 Urban Arterial Program (UAP)

Existing Conditions

This intersection currently operates at LOS F for the SBLT movement, and has for many years. A signal warrant analysis was done in 2017, originally for the intersection of Southcenter Blvd and 62nd Avenue S, but given the close proximity of these intersections, bookmarked on either end by signalized intersections, signalization is warranted - and recommended - at 65th Avenue S. Doing so will: 1) Provide a safer crossing for pedestrians utilizing the King County Metro bus zone on the south side of Southcenter Blvd (the zone provides service for Rapid Ride F-Line and Rt 150 - the workhorse of South King County). 2) Improve overall intersection operations. 3) Provide gaps in traffic to aid intersection operations at the 62nd Ave S intersection. 4) Aid in controlling existing high speeds on Southcenter Blvd. 5) Improve operation for the new Fire Station 52, located just north of the intersection, by providing signal override through Opticom for the fire truck and aid cars.

Project Funding

  TIB Funds Local Funds Total Costs
Design 0 0 0
Right of Way 0 0 0
Construction 782,090 400,000 1,182,090
Project Totals $782,090 $400,000 $1,182,090

Local Match

TIB Participation Local Match Minimum Local Match
66.2% 33.8% 20%

Description of Improvements

This project adds a new traffic at Southcenter Boulevard and 65th Avenue. Ugrades the ADA ramp at the NW corner needs to be upgraded to current ADA standards and the bus zone will be updated to include detectable warning. The NE corners ADA ramps was updated in 2018 will remain intact. The new signal will be linked into the the Citys overall signal interconnect to ensure optimal operation along the corridor. Pedestrian crossing will be enhanced with APS and the increased illumination.