Full closure of SR 520 bridge over Lake Washington this weekend
The SR 520 bridge will close in both directions from 11 p.m. Friday, Sept. 30, until 5 a.m. Monday, Oct. 3. The SR 520 trail will stay open. More details available: SR 520 Construction Corner
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.
I-5 - SB S Spokane St to I-90 W-S Ramp- Deck Overlay & Expansion Joints
We’re replacing 56 expansion joints and repaving 1.25 miles of southbound I-5, part of the larger Revive I-5 plan to rehabilitate the King County I-5 corridor over the next 10 years.