San Francisco–Oakland Bay Bridge

San Francisco–Oakland Bay Bridge, double-decked structure, W Calif.; built 1933–36. It has a total length of 8.25 mi (13.2 km). From San Francisco it crosses the bay to Yerba Buena Island, where a tunnel connects with spans leading to Oakland and Berkeley. The bridge sustained significant damage in the severe 1989 October earthquake that hit the Bay Area.

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2007, Columbia University Press. All rights reserved.

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