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SR 520 West Approach Bridge North Project: What’s Happening Now?


You may have noticed that work to build the SR 520 West Approach Bridge North Project (WABN) in Seattle’s Montlake and Foster Island areas has begun. Crews have placed construction fencing around staging areas and selected trees for protection, closed parking lots, and delivered equipment for upcoming construction activities. In the coming days, SR 520 users and neighbors will see significantly more construction activity and changes within the SR 520 project limits. Upcoming work includes additional tree and vegetation removal, installation of a work bridge over water, demolition activities, and Arboretum trail closures necessary to build the project. WSDOT is committed to best management practices that minimize the effects of construction on neighbors, communities, and the traveling public. Last week, WSDOT hosted a public open house to share design and construction information with SR 520 users and neighbors. If you missed it, check out the meeting materials online here.

Stay informed during SR 520 WABN construction!




  • Call the SR 520 24-hour construction hotline: 206-708-4657

In person

  • Join WSDOT for public open houses and monthly construction update meetings with the contractor. The first meeting is Nov 5. from 4:30 – 5:30 p.m. at the Graham Visitor Center, 2300 Arboretum Drive, Seattle