Project updates
Learn about where and when construction is happening throughout the ST district.
East Link Extension

Project update: East Link Extension

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Construction is right around the corner! Stay informed 

East Link is gradually transitioning from final design into construction. The project will be built in segments, and to maximize efficiency, construction start dates for the different segments will vary across the project. As the project continues toward construction, alerts and updates will be available on an area-specific basis. Sign up today to receive updates that include advanced notification for traffic impacts, new construction activities and more.

The current construction schedule is below and is subject to change as construction contracts are awarded. 

  • Downtown Bellevue: early 2016
    • Tunnel construction is scheduled to begin in early 2016 while the remainder of downtown Bellevue construction will begin in mid-2017 
  • Overlake: mid-2016 
  • South Bellevue: late 2016 
  • Bel-Red: early 2017
  • I-90: mid-2017 

Sign up for alerts here.

Prepare for weekend roadwork on I-90

During the weekend of Nov. 13 -15, the Washington State Department of Transportation and Sound Transit will resume work on I-90 as part of the Two-Way Transit project, which is adding carpool lanes to the outer roadways in both of directions of I-90 between Seattle and Bellevue.

During the weekend-long closure, all eastbound traffic between Bellevue Way and Rainier Avenue South will be reduced to one lane and detoured into the I-90 express lanes. All lanes will reopen prior to the end of Sunday’s Seahawks game
If you’re traveling across Lake Washington, check WSDOT’s Seattle traffic website or call 511 before you head out for the latest traffic information. Also, give yourself extra time to reach your destination. 

The lane closures on I-90 will provide crews space to upgrade the operations and safety systems in the eastbound Mount Baker and Mercer Island tunnels, a necessary upgrade before Sound Transit contractors begin work on the East Link light rail extension. The 14-mile East Link project, set to open in 2023, includes 10 new stations connecting Seattle, Mercer Island, Bellevue and Overlake in Redmond.