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.
Access the resources you need to maintain and improve the transportation system.
Latest from WSDOT...
- VICTOR – Work to replace two undersized culverts that carry Victor Creek under State Route 302 in Mason County will start Monday, April 28, and travelers should prepare for delays.
- OLYMPIA – Washington is growing – fast. That’s why the Washington State Department of Transportation is updating the State Rail Plan. To ensure residents across the state have a voice in this future, WSDOT is seeking public feedback on rail-related issues that are important to communities.
- CARBONADO – Effectively immediately, the Washington State Department of Transportation has closed the State Route 165 Carbon River Fairfax Bridge to all vehicle and pedestrian traffic until further notice.