Stress-ribbon bridge sets record, spares environment

04/3/2008 | Engineering News-Record

In California's San Diego County, workers have nearly completed the foundation of a 990-foot-long stress-ribbon bridge touted by engineers as the longest such structure in the world. The design of the $10.3 million bridge is considered environmentally friendly because the entire span is supported by only two foundations in the floor of Lake Hodges. "We could have built a conventional bridge cheaper, but it might never have got approved by environmental agencies because of [so] many foundations across the lake," says Wade Durant, resident engineer with T.Y. Lin International in San Francisco.

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