Washington State Department of Transportation
| Department overview | |
|---|---|
| Formed | September 21, 1977 |
| Preceding agencies |
|
| Type | Department of transportation |
| Jurisdiction | State of Washington |
| Headquarters | 310 Maple Park Avenue SE Olympia, Washington, U.S. 47°02′05″N 122°53′52″W / 47.034700°N 122.897661°W |
| Employees | 6,318 |
| Annual budget | $11.505 billion (2023–2025) |
| Department executive |
|
| Child department | |
| Website | wsdot.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, 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.