Construction alert: Mountlake Terrace Station

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Construction alert

Nightly Closure of 220th St. SW

As early as Monday, September 26th, Sound Transit’s contractor will work at 220th St. SW to complete bridge storm drain, point & patch, and painting activities. This work will be done from 12 am - 5 am. The contractor has obtained a Temporary Noise Variance to complete the work. Detours will be provided (see map).


Bridge completion activities at 220th St SW resulting in road closures.


Monday, September 26 – Wednesday, September 28, 12:00 am to 5:00 am.


220th St SW at the I-5 SB interchange


  • There will be posted signs for the detours (see map).
  • Plan ahead, leave early and allow extra time to reach your destination.
  • Please be prepared for delays while this work takes place.

Contact us

Community Engagement: or 206-398-5300
After-hours construction hotline: 888-298-2395

More updates

Construction impacts map for 220th Street Southwest closure and detour, Mountlake Terrace Station, Lynnwood Link extension

Closure of 220th St SW and detour

Your safety is our priority

Learn how to stay safe around our construction sites.

Stay safe

24-hour construction hotline: 888-298-2395

More project info:
Get in touch: or 206-398-5300