Northbound I-5 will close at the I-90 interchange to Northeast 45th Street from 11:59 p.m. Friday Aug. 15 to Monday, Aug. 18.
Use these resources to align your plan or study with WSDOT standards and best practices.
Find state transportation data for local and regional planners, decision-makers and the public to better understand the state's transportation system.
Corridor sketch summaries describe the functionality and features of our state highways. Each summary has information that guides highway improvements.
View a list of transportation planning-related resources for updating local government comprehensive plans.
Use this guidance to determine if a Planning and Environmental Linkages (PEL) study is right for your planning effort and to assist you throughout the PEL process.
Find the guidance and tools to conduct and document a planning study.
Learn about Tribal, metropolitan and regional transportation planning organizations, and the resources and rules related to these regional planning partners.
Excessive speed was a top cause of work zone collisions in 2024.
Work zones need our undivided attention.
96% of people hurt in work zones are drivers, their passengers or passing pedestrians, not just our road crews.
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