Aviation
Washington State Aviation System Plan, Pilot Registration, etc.

Highway Map

Washington State Highway Map

Planning
Transportation Plan, Route Development, Trends and more...

Accountability

Gray Notebook (Measures, Markers and Mileposts)
Quarterly publication

Performance Reporting
Accountability and performance publications

Recent Handouts (Folios)
Brief overviews on WSDOT business areas.

Collision/Accident Related

Collision Report
Request a copy of an officer or citizen collision report

Collision Data 

Collision Data Request
Request collision data

Manuals and Technical Specs

Design
Design Manual and other design publications

Engineering
On-Line Technical Manual LIbrary, Publication Search, etc.

Hazardous Materials
Guidelines for dealing with Hazardous and Problem waste sites.

Hydraulics
Sources to assist hydraulic designers

Manuals - Engineering Publications

Manual on Uniform Traffic Control Devices
Standards for traffic control devices installed along state highways

Research Reports
Searchable collection of research reports published by WSDOT

Roadside Design

Standard Plans
Design Standards, View or Download Plans

Traffic Design
MUTCD, Traffic Manual, Standards Specifications, etc.