Library & research reports

Take a look at available library services and find current information about transportation research projects and reports.

Library

Discover library services available to you, search our collections, access digital materials and contact our librarians.

Research reports

Learn about applied transportation research conducted by WSDOT. Find information on current research projects, access research reports, watch our webinars and contact our research managers.

Glossary and Abbreviations & Acronyms List

Check out these tools to find definitions of terms and decode common abbreviations used by WSDOT.

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Highlights from the Gray Notebook

166,800 electric vehicle

registrations in Washington in 2023, up from 114,600 in 2022.

87 wetland compensation sites

actively monitored on 918 acres in 2023.

25,000 safe animal crossings

in the Snoqualmie Pass East Project area since 2014.