Building a overpass thats ready for the big one

During the Loma Prieta trembler on Oct 17, 1989, that totalled 7.1 on the Richter scale, the San Francisco-Oakland Bay Bridge scarcely collapsed. Just one or dual seconds some-more of jolt along the San Andreas error zone, says Caltrans" Bart Ney, and the total overpass would have come down.Today, the seismic innovations being incorporated in to the building a whole of the new San Francisco-Oakland Bay Bridge are far some-more advanced. The building a whole is a competition opposite the clock, and engineers contend the new bridge, once built, will be secure sufficient to tarry a "massive turn earthquake--the largest you would see in 1,500 years."Some of these innovations have been grown by Caltrans and are being used in this kind of building a whole for the initial time; they should concede the overpass to hook and melt along with the large appetite issued by a high-level earthquake. Independent sections, related with mobile joints and stretchable surfaces, will keep the overpass protected and simply repairable following a vital seismic event.Last week, CNET photographer James Martin went along with Caltrans inside the bridge, removing an up-close see at a little of the technologies being written to keep the Bay Area safe.
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