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Regional Mobility Grants Program

The Regional Mobility Grant program supports local efforts to improve transit mobility and reduce congestion on our most heavily traveled roadways. The program has provided $143.5 million to support local projects since 2006.


Funded local projects include:
  • New transit services that connect urban centers
  • Park and ride lots and expansions
  • New buses
  • Rush-hour transit service along congested corridors


Authorization for the Regional Mobility Grant program is supported in statute by RCW 47.66.030.

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Project Updates

Park and ride facility improvements


King County Metro/South Kirkland Park and Ride
This project will provide new travel options across the SR 520 floating bridge. Local transit providers intend to in-crease service through the transit center and park and ride, including new destinations. Increased transit service will also require additional loading and layover zones. Adding 250 parking stalls and housing can increase ridership on the corridor by almost 10 percent during the morning commute peak.



Sound Transit/South 200th Intermodal Station
This project will build the new South 200th Street Intermodal Station, which includes a park and ride lot with 700-1,100 stalls in SeaTac.









Corridor improvements


City of Bothell/SR 522 Stage 2A

This project extends the westbound transit lane in from 96th Ave. NE, widens the through lanes and includes a raised median. The transit-lane extension allows buses to bypass the queues in the general-purpose lanes from the 96th Ave. NE signal and transitions transit traffic smoothly into the general-purpose lanes. This project will reduce transit travel times and leverages the corridor investments made in Kenmore for transit.