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Show Windproof Span Designed After Wind Tunnel Tests By 1948, a new Tacoma Narrows Bridge will be built over Puget Sound, replacing the one that, four months after its completion in 1940, was destroyed by wind, says Collier's. The new span, the first to have its design based on wind-tunnel wind-tunnel tests of a model, will have shock absorbers at numerous points. It will also have air slots in the floor which will enable it to withstand with-stand a wind nearly three times as strong as that which caused the former structure to crash. |