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The system was renamed the McAlpine Locks and Dam in 1960 in honor of William McAlpine, who was the only civilian to have ever served as district engineer for the Corps of Louisville. At present, the normal pool elevation is 420 feet (130 m) above sea level and the drainage area above the dam is 91,170 square miles (236,000 km 2 ).
The program's purpose was to replace the system of outdated wicket dams and small locks. The new dams were non-navigable and made of concrete and steel. Each dam has two adjoining locks, one 600-foot by 110-foot chamber, and a 1,200-foot by 110-foot chamber to accommodate fifteen barges that can lock through in one maneuver. [2]
The main lock is 1,200 feet (370 m) long and 110 feet (34 m) wide; the auxiliary is 600 feet (180 m) long and 110 feet (34 m) wide. The main lock has a vertical lift gate and a miter gate while the aux. lock has two miter gates. The dam is 1,160 feet (350 m) long with 9 tainter gates, each 110 feet (34 m) wide by 42 feet (13 m) high.
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McAlpine Locks and Dam, named for William McAlpine, district engineer for the Corps of Louisville, Kentucky Topics referred to by the same term This disambiguation page lists articles about people with the same name.
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NEW YORK (Reuters) -The judge overseeing Donald Trump's criminal hush money case has put off ruling on whether the president-elect's conviction should be thrown out on immunity grounds, enabling ...