Washington State Department of Transportation

Washington State Department of Transportation
Department overview
FormedSeptember 21, 1977 (1977-09-21)[1]
Preceding agencies
  • Washington State Department of Highways
  • Washington State Aeronautics Commission
  • Washington State Toll Bridge Authority
  • Washington State Canal Commission
TypeDepartment of transportation
JurisdictionState of Washington
Headquarters310 Maple Park Avenue SE
Olympia, Washington, U.S.
47°02′05″N 122°53′52″W / 47.034700°N 122.897661°W / 47.034700; -122.897661
Employees6,318
Annual budget$11.505 billion (2023–2025)[2]
Department executive
Child department
Websitewsdot.wa.gov

The Washington State Department of Transportation (WSDOT or WashDOT, both /ˈwɒʃdɒt/) is a governmental agency that constructs, maintains, and regulates the use of transportation infrastructure in the U.S. state of Washington. Established in 1905, it is led by a secretary and overseen by the governor. WSDOT is responsible for more than 20,000 lane-miles of roadway,[3] nearly 3,000 vehicular bridges and 524 other structures. This infrastructure includes rail lines, state highways, state ferries (considered part of the highway system) and state airports.[4]

  1. ^ Oldham, Kit (March 15, 2005). "Legislature creates Washington State Department of Transportation (WSDOT) effective September 21, 1977". HistoryLink. Retrieved November 25, 2015.
  2. ^ "Executive Summary" (PDF). 2015-2017 Biennial Budget Request (Report). September 2014.
  3. ^ Multimodal Planning Division (February 17, 2024). State Highway Log Planning Report 2023, SR 2 to SR 971 (PDF) (Report). Washington State Department of Transportation. p. v64. Retrieved March 25, 2024.
  4. ^ WSDOT. "WSDOT Homepage". Retrieved July 15, 2008.