The Lewis and Clark Bridge is a cantilever bridge that spans the Columbia River between Longview, Washington and Rainier, Oregon. At the time of completion, it had the longest cantilever span in the United States. The bridge is 8,288 ft (2.5 km) long with 210 ft (64 m) of vertical clearance. The main span is 1,200 ft (366 m) long and the top of the bridge is 340 ft (104 m) above the river. It was designed by Joseph Strauss, engineer of the Golden Gate Bridge. In 1982, the bridge was entered on the National Register of Historic Places, as the Longview Bridge.