State Route 520 logo

Westbound SR 520 closed between Montlake Blvd. in Seattle and I-5 Jan. 31 - Feb. 1 (weather permitting)

Date: Jan 31, 2026 to Feb 1, 2026

Time: 6 p.m. Saturday to 1 p.m. Sunday

Activity details:

  • check mark icon Full highway closure
  • check mark icon Ramp closure
  • check mark icon High-impact construction
  • check mark icon Nighttime
  • check mark icon Daytime
  • check mark icon Overnight

Impact type:

  • check mark icon Traffic
  • check mark icon Noise

Description: Crews will use this closure to repair an expansion joint and refresh striping. This work is part of the SR 520 Portage Bay Bridge and Roanoke Lid Project. This work is weather dependent.

Traffic: Westbound SR 520 between Montlake Boulevard in Seattle and I-5 will close for construction beginning at 6 p.m. on Saturday, Jan. 31, until 1 p.m. on Sunday, Feb. 1. All westbound traffic crossing Lake Washington must exit at Montlake Boulevard or Lake Washington Boulevard during these hours. Those wanting to access I-5 from the eastside must use alternate routes. This work is weather dependent. The SR 520 Trail will remain open. Eastbound SR 520 is not affected by this work.

Contact Info

Email: sr520bridge@wsdot.wa.gov
24-hour construction hotline: 206-319-4520

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