Corridor sketch initiative

WSDOT's Corridor Sketch Initiative is a set of planning activities that engages the agency's partners to determine the context and performance of state highway corridors and identify high-level strategies for addressing performance gaps. The initiative complements and supports regional planning processes around the state.

Corridor Sketch Program Status, June 2017 (pdf 726 kb)

User Guide for Corridor Sketch Summaries (pdf 428 kb)

Corridor sketch summaries

Corridor Sketch summary map

View Corridor Sketch Summary map

Eastern Region


North Central Region


Northwest Region 


Olympic Region 


South Central Region  


Southwest Region  



For questions regarding specific corridors, please refer to the last page of the corresponding Corridor Sketch Summary (pdf link) for contact information.