Operations and Maintenance Facility South

Maintaining the growing light rail fleet.
Project map for Operations and Maintenance Facility South project

Operations and Maintenance Facility South project updates

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We need a new Operations and Maintenance Facility (OMF) in the South Sound to receive, store and service a larger train fleet to support future light rail extensions to Tacoma, West Seattle and throughout the region.

An OMF is where Link trains go 24 hours a day, 365 days a year for cleaning, storage and care. To build this new facility, we need approximately 60-70 acres (for reference, one football field is 1.3 acres) near an operating light rail line.

As part of system expansion plans, we need a total of four OMFs across the region. In addition to this future facility in South King County, we currently service the existing light rail fleet at a central OMF on South Forest Street in Seattle. We're building a second facility in Bellevue and will also add another OMF north of Seattle. 

The COVID-19 crisis is significantly reducing the revenues Sound Transit relies on to expand our regional transit system. With greatly depleted revenues, we won’t be able to deliver expansion projects on their original timelines without alternative revenue from federal or state sources. Through a process called realignment, the Sound Transit Board of Directors is working to determine which project timelines for voter-approved projects will need to change due to lower revenue projections. 

Benefits of the OMF South

  • Creates high-skilled, living-wage jobs for more than 470 people in South King County. At our existing OMF, the average employee wage is more than $40 per hour, or $80,000/year.
  • Ensures thousands of passengers ride clean, well-maintained trains. We suspend service every night between 1-5 a.m. so we can properly service our Link trains.

Current project status

We’re scheduled to publish the OMF South Draft Environmental Statement (EIS) on March 5, 2021. A Draft EIS analyzes and documents the sites' potential impacts to the natural and built environment, and proposes ways to mitigate unavoidable impacts. During this current phase, we'll continue with more conceptual design work, including potential changes to site configurations.

The public will have an opportunity to review and make formal comment on the Draft EIS through April 19, 2021. We’ll be sending mailers to local residents, businesses and property owners with information about our online open house and your many options for submitting comments.  

Questions or comments before then? We're always here to help. You can contact the project team at omfsouth@soundtransit.org.

We encourage you to sign up for project email updates for all the latest news as OMF South develops.

What can I expect as a project neighbor?

  • If you're a resident, business or property owner near a potential OMF South site, signing up for email updates is the first step to ensuring you're always up to speed on the project. If you have any questions or you'd like to set up a meeting to learn more, contact the project team at omfsouth@soundtransit.org.
  • The Draft Environmental Impact Statement will evaluate possible property impacts in detail. You'll have opportunities to comment on the Draft EIS from March 5 to April 19 2021The Sound Transit Board carefully considers the feedback we receive through this formal comment process, and we'll respond to all substantive comments. 
  • After the Draft EIS public review and comment period, the Sound Transit Board will identify a site as a "preferred alternative" for the Final EIS, in late 2021. A preferred alternative is a statement of where the agency is leaning based on information available at the time. It's not a final decision.
  • The Sound Transit Board will make a final decision on the site and the project to be built after we issue the Final EIS.