Which bridge in San Francisco was rebuilt after its 1989 eastern span was damaged by the Loma Prieta earthquake?

The San Francisco–Oakland Bay Bridge was rebuilt on its eastern span after the 1989 Loma Prieta earthquake damaged the original structure.

The bridge system connects San Francisco with Oakland and the East Bay across San Francisco Bay. The western portion consists of twin suspension bridges, while the original eastern portion was a cantilever truss bridge. On 17 October 1989, a section of the eastern span’s upper deck collapsed during the magnitude 6.9 earthquake.

The original eastern span was closed and eventually replaced by a self-anchored suspension bridge. The replacement opened to traffic in 2013, with demolition of the old eastern span continuing afterward. The new design was selected to improve seismic performance and provide a more resilient connection across the bay.

Although often called the Bay Bridge, it is not the Golden Gate Bridge. The Bay Bridge carries Interstate 80, while the Golden Gate Bridge carries U.S. Route 101 and California State Route 1 across the Golden Gate strait.