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Frenchman Flat Domes, Nevada Test Site, Nevada
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Ten concrete and two aluminum shelters and thier blast doors were tested to withstand various blast foreces at Frenchman Flat Concrete Mound, Nevada Test Site, Nevada. The 50-fet diameter concrete domed shelters were two-feet thick are still intact. The six-inches thick ones are partially collasped. The aluminum domes were both crushed.
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