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Home arrow Pennsylvania arrow Allegheny County arrow Davis Island Rock & Dam PA408
Davis Island Rock & Dam PA408 Print E-mail
Below this bridge was the first lock and dam built (1878-1885) on the Ohio River. This was the world's largest movable dam yet constructed, and included the world's first rolling lock gate and widest lock chamber. Built and operated by the U.S. Army Corps of Engineers; replaced by the nearby Emsworth Locks and Dams in 1922.
Pa65 at E borough line, Avalon. Allegheny County Pennsylvania.
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