WWVSRTPO is a single-county RTPO covering all of Walla Walla County; it had originally been part of the Benton-Franklin-Walla Walla RTPO. This area is also part of the bi-state metropolitan planning area that includes Milton-Freewater, Oregon. WWVSRTPO is located in the South Central Region of WSDOT.
Walla Walla Sub-Regional Transportation Planning Organization
2040 Regional Transportation Plan
Final 2040 Transportation Plan
2019 Human Services Transportation Plan