Northbound I-5 in Tukwila reduces to two lanes near Duwamish River Sept. 21-22, 28-29

Moving day for walk-on Washington State Ferries passengers at Colman Dock

Advisory group discusses I-405/SR 167 corridor

Lengthy waits for vehicles to cap peak season ferry travel over holiday weekend

WSDOT announces a November start date for tolling the SR 99 tunnel in Seattle

Labor Day weekend means more travelers, extra travel time

Prepare for two weekends of closures of SR 9 near Marysville for roundabout installation

Restoration work turns up the volume on Deception Pass and Canoe Pass bridges

WSDOT awards contract for I-405 widening and express toll lanes project between Renton and Bellevue

I-5 - Slater Road Interchange - Improvements

Project news

  • The I-5 Slater Road interchange improvement survey is now closed. Thank you for your feedback. WSDOT will share responses and project design options based on those responses during a spring 2020 open house. Due to COVID-19, we are working on a virtual option to present that information.
  • WSDOT will advertise this Connecting Washington project for contractor bidding in October 2022.
  • For information on this, and other Whatcom County highway projects, subscribe to weekly email updates.

SR 11 - Hoag's Creek - Fish Passage

Project news

Needs & Benefits

Back-to-back weekends of lane reductions on SR 99 Aurora bridge in Seattle

Westbound US 2 paving project finishes weekend closures ahead of schedule

Changes coming to both directions of I-90 between Bellevue and Issaquah

Coming soon: SR 520 construction in Montlake