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A bridge built to sway when the earth shakes

Bay Bridge

The New York Times

http://www.nytimes.com/2012/02/07/science/to-survive-a-quake-new-bay-bridge-span-will-offer-least-resistance.html

Feb 06, 2012

Venture deep inside the new skyway of the San Francisco-Oakland Bay Bridge, and it becomes clear that the bridge's engineers have planned for the long term. The new eastern span of the Bay Bridge is meant to last at least 150 years after its expected opening in 2013. "We wanted to make this bridge flexible so that when the earthquake comes in, the flexibility of the system is such that it basically rides the earthquake," said its lead designer, Berkeley Engineering alumnus Marwan Nader (M.S.'89, Ph.D.'92 CE).