Operations and Maintenance Facility South
Maintaining the growing light rail fleet.

Timeline and milestones

  • Voter approval (2016)

  • Milestone Target
    Alternatives development 2018 - 2019
    Board identifies sites for further study in the Draft Environmental Impact Statement 2019
    Draft Environmental Impact Statement 2019 - 2021
    Board identifies a preferred site alternative 2021
    Final Environmental Impact Statement 2024
    Board selects project to be built 2024
  • Milestone
    Final facility design
    Procure and commission facility and public art
    Obtain land use and construction permits
    Property acquisition/relocation
    Construction updates and mitigation
    Safety education
    Testing and pre-operations
  • *This is the earliest possible date for opening this facility.

On Aug. 5, 2021, the Sound Transit Board adopted a realigned capital plan to address steeply rising construction and real estate costs affecting many voter-approved regional transit expansion projects. The Board’s adopted plans identify 2029 as the initial target date for opening the OMF South.

Some projects in the planning phase, including the OMF South, have also experienced non-financial delays in recent months. Many government and community project partners were forced to shift resources to addressing the human impact of the COVID-19 pandemic and were justifiably unable to review planning and environmental documents during that time.

When combined with our own delays, these delays in individual agencies and organizations had a compounding effect on some project schedules, including the OMF South’s. For this reason, 2029 would be the earliest possible date for opening this facility, even if projected financial impacts are eliminated.

Close collaboration with partners will be required to deliver the OMF South as rapidly as possible to support the opening of future light rail extensions.

Learn more about the realignment process and increased construction cost estimates at soundtransit.org/realignment.