2. Timeline and milestones

  • Voter approval (2016)

  • Milestone Target
    Alternatives development 2017 - 2019
    Board identifies preferred alternative 2019
    Draft Environmental Impact Statement 2019 - 2020
    Board confirms or modifies the Preferred Alternative 2020
    Final Environmental Impact Statement 2021 - 2022
    Board selects project to be built 2022
    Federal Record of Decision 2022
  • Milestone
    Final route design
    Final station designs
    Procure and commission station and public art
    Obtain land use and construction permits
    Property acquisition/relocation
  • Milestone
    Groundbreaking
    Construction updates and mitigation
    Safety education
    Testing and pre-operations
  • Start of service (2030/2035)*

*West Seattle: Design is expected to begin in 2022 and be completed in 2025. Construction and testing is expected to begin in 2025 and be completed in 2030.

Ballard and downtown Seattle light rail tunnel: Design is expected to begin in 2023 and be completed in 2026. Construction and testing is expected to begin in 2027 and be completed in 2035.