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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.
The Ohio River at Cairo is 281,500 cu ft/s (7,960 m 3 /s); [1] and the Mississippi River at Thebes, Illinois, which is upstream of the confluence, is 208,200 cu ft/s (5,897 m 3 /s). [66] The Ohio River flow is greater than that of the Mississippi River, so hydrologically the Ohio River is the main stream of the river system.
Pages in category "Dams in Ohio" The following 29 pages are in this category, out of 29 total. This list may not reflect recent changes. *
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.
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 river traverses five Ohio counties, [1] Columbiana, Stark, Portage, Trumbull, and Mahoning, as well as Lawrence County, Pennsylvania. The watershed area also includes parts of Ashtabula and Geauga counties in Ohio. The three main tributaries are Mosquito Creek, West Branch, and Eagle Creek, all in Ohio. There are 15 dams on the river course.
The main article for this category is List of dams and reservoirs in Ohio; ... Pages in category "Reservoirs in Ohio" The following 41 pages are in this category, out ...