Mystery Bridge 31: Thacher Truss Railroad Bridge In Waverly, Iowa

A few months ago, the Chronicles did a special on the Thacher truss bridges, designed and patented by Edwin Thacher and first used in 1884 in the state of Iowa. To refresh the reader’s memory, the Thacher truss is a combination of Warren, Kellogg and Pratt truss with an A-frame in the center panel of…
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