State Route 520 logo

Westbound SR 520 off-ramp to northbound I-5 and E. Roanoke St. closed nightly Sept. 2-4

Date: Sep 2, 2025 to Sep 4, 2025

Time: 10 p.m. to 6 a.m. nightly

Activity details:

  • check mark icon Street and lane closure
  • check mark icon Ramp closure
  • check mark icon Nighttime
  • check mark icon Overnight

Impact type:

  • check mark icon Traffic
  • check mark icon Noise

Description: Crews will use the closure to install temporary lighting along the ramp and paving portions of the ramp. This work is part of the SR 520 Portage Bay Bridge and Roanoke Lid Project.

Traffic: The westbound SR 520 off-ramp to both northbound I-5 and East Roanoke Street will close for construction from 10 p.m. to 6 a.m. nightly beginning Tuesday, Sept. 2 through Thursday, Sept. 4. All westbound SR 520 traffic will need to exit either at Montlake Blvd. or will need to take southbound I-5.

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.