Stride S1 Line
Adding new bus rapid transit service along I-405 and SR 518 between Bellevue and Burien.

Timeline and milestones

  • Voter approval (2016)

  • Planning (2018-2021)

  • Design (2021-2024)
    We are here

  • Construction (Ongoing, through 2028)

  • In order to focus available financial capacity on expediting Stride openings, the Sound Transit Board of Directors identified later targets for opening the three planned parking improvements associated with S1 Line and S2 Line projects: 

    • Expanded parking at the existing Kingsgate Park-and-Ride Lot – scheduled for 2035.
    • New parking at NE 44th and at South Renton Transit Center – scheduled for 2034.