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Westbound SR 520 off-ramp to northbound I-5 and E Roanoke St closed nightly Sept. 17 & 18

Date: Sep 17, 2025 to Sep 18, 2025

Time: 10 p.m. to 6 a.m. the next morning

Activity details:

  • check mark icon Ramp closure
  • check mark icon Nighttime
  • check mark icon Overnight

Impact type:

  • check mark icon Traffic

Description: Crews will use the closure for right-of-way maintenance work related to 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 at 10 p.m. on the nights of Wednesday, Sept. 17. All westbound SR 520 traffic will need to exit either at Montlake Boulevard or will need to take southbound I-5. Please use alternate routes. SEPT. 18 CANCELLED

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.