State Route 520 logo

Montlake Blvd. on-ramp to westbound SR 520 closed overnight Sept. 3

Date: Sep 3, 2025 to Sep 4, 2025

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

Activity details:

  • 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 this closure to pave the temporary haul road located next to the ramp as part of the SR 520 Portage Bay Bridge and Roanoke Lid Project.

Traffic: The Montlake Blvd. on-ramp to westbound SR 520 will close for construction beginning at 10 p.m. on Wednesday, Sept. 3 until 6 a.m. the following morning. Traffic wanting to access westbound SR 520 from Montlake during this time will need to use alternate routes.

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.