State Route 520 logo

test all cats

Date: Jan 21, 2026 to May 8, 2026

Time:

Activity details:

  • check mark icon Full highway closure
  • check mark icon Partial highway closure
  • check mark icon Street and lane closure
  • check mark icon Trail or park closure
  • check mark icon Ramp closure
  • check mark icon High-impact construction
  • check mark icon Around-the-clock
  • check mark icon Nighttime
  • check mark icon Daytime
  • check mark icon Overnight

Impact type:

  • check mark icon Bike/pedestrian
  • check mark icon Parking Restrictions
  • check mark icon Traffic
  • check mark icon Dust
  • check mark icon Noise
  • check mark icon Vibration

Description: Activity description

Traffic: traffic description

Contact Info

Email: sr520bridge@wsdot.wa.gov
24-hour construction hotline: 206-775-8885

Note: This tool is presented for planning purposes only. Construction is inherently dependent on weather and other factors, and activities are subject to change.