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This is a list of locks and dams of the Ohio River, which begins at the confluence of the Allegheny and Monongahela rivers at The Point in Pittsburgh, Pennsylvania and ends at the confluence of the Ohio River and the Mississippi River, in Cairo, Illinois. A map and diagram of U.S. Army Corps of Engineers operated locks and dams on the Ohio River.
Two additional dams and lakes were added at a later date: Dillon Lake (1960) [3] and North Branch Kokosing. [4]The operation of the lakes and dams, along with the property immediately surrounding the dam sites, was transferred to the U.S. Army Corps of Engineers, Huntington District, after the approval of the Flood Control Act of 1939 by Congress.
Tugboat at McAlpine Locks and Dam, 2012 Paddling through McAlpine. From 1925 to 1927, the dam for generating hydroelectric power was added, and the locks were expanded, first by a private company and then by the U.S. Army Corps of Engineers. The hydroelectric plant at the time was the seventh largest hydroelectric plant in the United States.
The dam has weakened and several safety issues have arisen, which is why the USACE has placed it on its list of the nation's most at-risk dams, where it ranked seventh most at-risk in 2006. [2] In 2007, the dam was classified as "Urgent", which is the second-highest classification level of the dam safety rating system used by the USACE.
The Markland Locks and Dam is a concrete dam bridge and locks that span the Ohio River. It is 1395 feet (425.2 m) long, and connects Gallatin County, Kentucky, and Switzerland County, Indiana. The locks and dam were reviewed by the Board of Engineers for River
Located near Englewood, Englewood dam is the largest of the dams maintained by the district. It regulates the flow of the Stillwater River into the Great Miami River. It consists of 3,500,000 cubic yards (2,700,000 m 3) of earth, is 110 feet (34 m) high and stretches 4,716 feet (1,437 m). U.S. Route 40 crosses the top of the
Charles Mill Dam was constructed from 1935 to 1936 and is primarily for flood control, but is also used for recreation, and fish and wildlife management. [2] Charles Mill Dam is a rolled earth fill dam with an impervious, water-resistant, clay core. The dam, is 48 feet (15 m) high, 1,390 feet (420 m) long and 20 feet (6.1 m) wide.
Hoover Dam, in Blendon Township, near Westerville, Ohio, dams Big Walnut Creek to form the Hoover Memorial Reservoir. This reservoir is a major water source for the city of Columbus, Ohio . It holds 20.8 billion US gallons (79,000,000 m 3 ) of water and has a surface area of 3,272 acres (13.24 km 2 ), or about five square miles.