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.
County
Featured Project
I-405/Renton to Bellevue Widening and Express Toll Lanes Project
Roadwork on Southbound I-405 is part of a project to install a two-lane express toll lane system between Renton and Bellevue.
Access the resources you need to maintain and improve the transportation system.
Latest from WSDOT...
- OLYMPIA – The state Commercial Aviation Work Group, which evaluates Washington’s future needs for commercial aviation and transportation, will host its first meeting of 2026 at 10 a.m. Wednesday, Feb. 25, in SeaTac.
- LEAVENWORTH – Highway has been closed since dramatic damage from December storms; additional work on permanent repairs to come this summer
- OLYMPIA – The Washington State Department of Transportation Aviation Division is accepting applications for the second round of the 2025-2027 Airport Aid Grant Program. WSDOT anticipates awarding approximately $1.1 million in funding.