San Francisco-Oakland Bay Bridge. West Bay Crossing showing San Francisco from Yerba Buena Island. 51 piers rise from varying depths to support this mightiest of the world's bridges. The centre anchorage descends 220 ft below water to bedrock.

Courtesy of UC Berkeley, Bancroft Library

http://www.oac.cdlib.org/ark:/28722/bk000113769/?order=1

Title:

San Francisco-Oakland Bay Bridge. West Bay Crossing showing San Francisco from Yerba Buena Island. 51 piers rise from varying depths to support this mightiest of the world's bridges. The centre anchorage descends 220 ft below water to bedrock.

Date:

undated

Contributing Institution:

UC Berkeley, Bancroft Library