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Washington Department of Transportation

Washington State Department of Transportation
WSDOT Logo.svg
Department overview
Formed September 27, 1977 (1977-09-27)
Preceding agencies
  • Washington State Department of Highways
  • Washington State Aeronautics Commission
  • Washington State Toll Bridge Authority
  • Washington State Canal Commission
Type Department of transportation
Jurisdiction State of Washington
Headquarters 310 Maple Park Avenue SE
Olympia, Washington
47°02′05″N 122°53′52″W / 47.034700°N 122.897661°W / 47.034700; -122.897661Coordinates: 47°02′05″N 122°53′52″W / 47.034700°N 122.897661°W / 47.034700; -122.897661
Employees 6,318
Annual budget $5.132 billion (2015–2017)
Department executive
  • Roger Millar, Secretary of Transportation
Child department
Website wsdot.wa.gov

The Washington State Department of Transportation (WSDOT or WashDOT) was established in 1905. The agency, led by a Secretary and overseen by the Governor, is a Washington governmental agency that constructs, maintains, and regulates the use of the state's transportation infrastructure. WSDOT is responsible for more than 20,000 lane-miles of roadway, 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

WSDOT was founded as the Washington State Highway Board and the Washington State Highways Department on March 13, 1905, when then-governor Albert Mead signed a bill that gave $110,000 USD to fund new roads that linked the state. The State Highway Board was managed by State Treasurer, State Auditor, and Highway Commissioner Joseph M. Snow and the Board first met on April 17, 1905 to plan the 12 original state roads. The first state highway districts, each managed by a District Engineer, were established in 1918. During this period, the construction of highways began.

In 1921, the State Highway Board was replaced by the Washington Highway Committee and the Washington State Highways Department became a division of the Washington State Department of Public Works. The first gas tax (1¢ per gallon) was levied and Homer Hadley started planning a pontoon bridge across Lake Washington, which would later become the Lacey V. Murrow Memorial Bridge, which opened on July 2, 1940. In 1923, the State Highways Department separated from the Public Works Department and organized the first official system of highways, Washington's state road system. In 1926, the U.S. government approved the U.S. route system, which connected the country by road. 11 U.S. Routes entered Washington at the time. Later in 1929, the Highway Committee was merged with the State Highways Department. The Lake Washington Floating Bridge and the original Tacoma Narrows Bridge opened in 1940. The Tacoma Narrows Bridge collapsed because of winds on November 7, 1940, earning it the name Galloping Gertie. On June 29, 1956, President Dwight Eisenhower signed the Federal Aid Highway Act of 1956, which started the Interstate Highway System. Originally, 2 Interstates entered Washington.


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