Bidwell Bar Bridge, Suspension bridge in Oroville, United States

The Bidwell Bar Bridge is a 1,108-foot (338 m) steel suspension bridge on State Route 162, built from 1965 and opened in 1967, a mile and a half upstream from the original crossing. Its deck sits 627 feet (191 m) above the former Feather River streambed, though Lake Oroville now lies just below it. The relocated 1855 bridge stands on the lake's south shore.

The original 1855 steel suspension bridge, financed largely by Judge Joseph Lewis, was moved in 1966 to the south side of Lake Oroville ahead of the Oroville Dam flooding. Its replacement, built from 1965 and opened in 1967, spans 338 m a mile and a half upstream and was then among the world's highest suspension bridges at 191 m above the original streambed.

The original 1855 bridge is a California Historical Landmark and a National Historic Civil Engineering Landmark; its plaque stands beside the Mother Orange Tree, the first orange tree in Northern California, bought by Judge Joseph Lewis, who funded the bridge.

The bridge remains open as an active road crossing, and visitors can drive across to experience the views of the lake and surrounding terrain. For the best perspective, stop at nearby pullouts or viewpoints along the approach roads rather than trying to view it while driving.

The name Bidwell Bar comes from John Bidwell, an early settler and gold prospector whose name marks several locations in the area. This connection to the Gold Rush era adds a layer of pioneer history to what might otherwise seem like just a modern road crossing.