The Golden Gate Bridge
page in Damage Control
Engineers think a magnitude 7 quake near San Francisco could damage this world-famous bridge. Retrofitting the Golden Gate is a $400 million project that includes putting the approaches to the bridge on base isolators, strengthening the connections between the sections of roadbed, and bracing the support towers. When the decade-long project is complete, the Golden Gate should be able to tolerate a magnitude 8.3 quake.
Photo: Amy Snyder
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