Projects and improvements in your county.
Explore the progress of projects focused on creating safe and reliable ways to move people and goods around Washington.
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Featured Project
SR 509 Completion Project
The SR 509 Completion Project in south King County builds a new four-lane tolled expressway between I-5 and SR 509's current end near Seattle-Tacoma International Airport, builds new I-5 ramps, improves I-5 interchanges and builds new bridges.
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Latest from WSDOT...
- SEATTLE – Heads up to ferry riders in the San Juan Islands: a new sailing schedule will be on deck this summer. Starting June 15, Washington State Ferries will embark on a new schedule for its Anacortes/San Juan Islands route. Vehicle reservations for the summer travel season will be available at 10 a.m. Tuesday, April 15.
- RICHLAND – Work to improve sections of State Route 240 in Richland will pave the way for safer and more efficient traveling conditions for all roadway users.
- SEATTLE – This summer, the Washington State Department of Transportation will take an important step on the Interstate 5 Yesler to Northgate project to preserve the aging I-5 Ship Canal Bridge. Working with its contractor Guy F. Atkinson Construction, WSDOT has identified approximately four weeks of critical construction activities in 2025 as the best way to complete the project by the end of the 2027 construction season.