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Scientific American, Vol. 64, No. 21 (1891) (1891)
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ne-third its ultimate strength will be At the point selected for the bridge there is a space called upon. The dead weight of the structure will be of 2,740 feet between the pier head lines as established nearly tbree and one-half times this amount. Thesus- by law. Both piers come inside of this… … © 1891 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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