History of navigation improvements In 1885 the first Corps-built lock and movable dam project on the Ohio River was completed at Davis Island near Pittsburgh, Pa. In 1910, by passage of the Rivers and Harbors Act, Cong - The Ship - Document - PDFSEARCH.IO

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	History of navigation improvements In 1885 the first Corps-built lock and movable dam project on the Ohio River was completed at Davis Island near Pittsburgh, Pa. In 1910, by passage of the Rivers and Harbors Act, Cong Add to Reading List Document Date: 2013-01-23 16:02:57 Open Document File Size: 1,23 MB Share Result on Facebook

History of navigation improvements In 1885 the first Corps-built lock and movable dam project on the Ohio River was completed at Davis Island near Pittsburgh, Pa. In 1910, by passage of the Rivers and Harbors Act, CongAdd to Reading List