Project update: Stride S1 and S2 Lines

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Project update

image of a Sound Transit Double Decker Bus at Bellevue Transit Center

Double decker Sound Transit bus at the Bellevue Transit Center.

S1, S2, and Bus Base North are moving towards 60% design

In this phase, we will clarify the design plans for the project and begin construction in some areas as the project moves closer to the 60% design milestone. At 60% design the project will:

  • Begin finalizing the design of roadway and sidewalks.
  • Begin finalizing station design and public art at stations
  • Obtain land use, environmental and construction permits.
  • Continue engaging with and providing feedback opportunities for the public, community groups, businesses, elected officials and partner agencies to comment on and inform the design.

As this phase continues, we will periodically provide updates to affected property owners and other community members. You can expect to hear project updates from us via email on a frequent basis. If you ever have any questions, please contact us via email at or phone at 206-553-3412.

Contact us

85th Street Construction Update

As a part of the S2 Line, the Northeast 85th Steet interchange will undergo a transformation. This redesigned interchange project (brought to the region through a partnership with the Washington State Department of Transportation (WSDOT)) will bring a new inline BRT station, connections to local transit, access to the I-405 Express Toll Lanes, and non-motorized (bicycle and pedestrian) improvements which will improve access and mobility to and from Downtown Kirkland. Although you may not see active construction for several months, WSDOT and Sound Transit plan to bring a Contractor on board late in 2022/early 2023.

South Renton Projects Update

As a part of the S1 service line, previous buildings at the future South Renton Transit Center site underwent some demolition which started in December 2021 and is now completed. The work also includes soil remediation work to clean up known contamination of soil on the site in preparation for the construction of the future transit center. This work is currently underway and is estimated to be completed in October 2022. No work is expected at night and Sound Transit will coordinate with surrounding communities if any disruptions are caused by the project.

Find us at the Fair on 44th in Lynnwood

This year, we sponsored a booth at the Lynnwood 44th Street Fair on Sept. 10, 2022. The project was at the fair along with Lynnwood Link Extension and Lynnwood Transit-Oriented Development (TOD). At the booth, we shared information about the different modes of transit coming to Lynnwood and the TOD plans for Lynnwood. This was our last event for the summer of 2022 but expect to see us more in the future for other fairs and festivals.

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Reach out

More project info:
Get in touch: or 206-553-3412