About us


The Washington State Department of Transportation is the steward of a multimodal transportation system and responsible for ensuring that people and goods move safely and efficiently. In addition to building, maintaining, and operating the state highway system, WSDOT is responsible for the state ferry system, and works in partnership with others to maintain and improve local roads, railroads and airports, as well as to support alternatives to driving, such as public transportation, bicycles and pedestrian programs.

WSDOT at a glance:

  • Operates and maintains 18,600 lane miles of state highways
  • Owns, operates and maintains nearly 3,300 bridge structures
  • Runs the largest ferry system in the nation that moves 24.2 million passengers and 10 million vehicles a year
  • Partners with 31 public transportation systems to provide more than 220 million passenger trips a year
  • Sponsors Amtrak Cascades intercity passenger rail and manages the Palouse River and Coulee City Rail system.