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Washington bridges are critical transportation links whether you travel on a two-lane overpass or a unique floating bridge that carries thousands of vehicles each day. There are roughly 7,300 bridges (61.8M SF) on the state, city and county road systems over 20 feet in length and carry vehicular traffic. WSDOT is responsible for managing an inventory of nearly 3,500 of these critical transportation links.
There are approximately 7,300 bridges on the state, county and city road systems.
Historically significant bridges in Washington that demonstrate creative mitigation efforts and preserve and present the history of our transportation system
See a list of all our moveable bridges, including Hood Canal Bridge and the First Avenue South Bridge.