The Lewis and Clark Bridge is a cantilever bridge that spans the Columbia River between Longview, Washington, and Rainier, Oregon. At the time of its completion, it had the longest cantilever span in the United States.
The bridge opened on March 29, 1930 as a private bridge named Longview Bridge. At the time, it was the longest and tallest cantilever bridge in the United States. Washington state purchased the bridge in 1947 and the toll was removed in 1965 after the bridge was paid for. In 1980, the bridge was dedicated as the Lewis and Clark Bridge in honor of the Lewis and Clark Expedition.
The bridge is 2,722 ft (830 m)[1] long with 210 ft (64 m) vertical clearance. The main span is 1,200 feet (366 m) long and the top of the bridge is 340 feet (104 m) above the river. It was designed by Joseph Strauss, the engineer of the Golden Gate Bridge.