South King County Base
Metro’s building a new all-electric bus base
King County Metro is taking steps to build a new south King County base to achieve our long-term goals for expanding transit service and transitioning to a zero-emission bus fleet.
Metro's seven existing bus bases are over capacity and unable to meet the increased service needs in our growing region. The agency's plan calls for adding bus base capacity in strategic locations like south King County.
King County Executive Dow Constantine announced in June 2019 that Metro has identified and will evaluate three potential sites in south King County as possible candidates to house, operate and maintain 250 battery electric buses. It is estimated to cost $480 million to purchase a site, build the base, and open it for operations as soon as 2030.
After an initial review of 20 potential sites in a targeted area of south King County, Metro is preparing to gather public input and conduct a more in-depth evaluation of three sites:
- Kent: 25 to 38 acres at South 196th Street and 68th Avenue South.
- Auburn: 18 to 26 acres at South 277th Street and D Street.
- Auburn: 38 acres at 37th Street Northwest and B Street Northwest.
The sites were selected based in part on size, shape, topography and access to major arterials and highways. Read more about the selected sites.
How Metro evaluates sites
The preference is for a site that is:
- Mostly rectangular and flat.
- Approximately 30 acres.
- Accessible to major arterials and highways.
- Compatible with existing and planned surrounding land use and reasonably available for future development for an all-electric battery bus base.
- In alignment with King County's social equity and sustainability goals.
During the site review and evaluation process, sites may be added or removed based on emerging information or properties becoming available.
Metro is committed to working closely with local, historically underrepresented communities to help create facilities that support their goals, incorporate community benefits, and add value.
Metro will engage with communities to gather input during the process to site, design, and construct the new base. We will reach out to communities in 2019 as we identify a single site, and again in 2020 when we plan to begin an environmental review process.