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McAlpine Locks and Dam is located in downtown Louisville, Kentucky. The dam is at mile 604.4 of the Ohio River and the locks are in the Louisville and Portland Canal on the Kentucky side of the river. The 56’ x 600’ auxiliary lock was completed in 1921 and the 110’ x 1200’ main chamber was opened in 1961. A new 110’ x 1200’ lock chamber was completed and began operation in 2009 . In 1960, the project was renamed from Lock and Dam 41 in honor of a former Louisville District Engineer.
805 N. 27th St. Louisville, KY 40280
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