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Lock and Dam No. 20 is a lock and dam located on the Upper Mississippi River, the lock side in Canton, Missouri and the dam crossing to Meyer, Illinois. The structure is located at river mile 343.1. It includes a 2,369 feet (722 m) long dam, 40 tainter gates , 3 roller gates , and a lock chamber that is 110 feet (34 m) wide by 600 feet (183 m ...
HAER No. MO-34, "Upper Mississippi River Nine-Foot Channel Project, Lock & Dam Complex No. 20, Canton, Lewis County, MO", 33 photos, 18 data pages, 2 photo caption pages HAER No. MO-35, " Upper Mississippi River Nine-Foot Channel Project, Lock & Dam Complex No. 22, Saverton, Ralls County, MO ", 21 photos, 15 data pages, 2 photo caption pages
The project produced 51 wooden wicket dams and 600 foot by 110 foot lock chambers along the length of the river. During the 1940s, a shift from steam propelled to diesel powered towboats allowed for tows longer than the 600 foot locks on the river.
Following is a list of dams and reservoirs in Pennsylvania.. All major dams are linked below. The National Inventory of Dams defines any "major dam" as being 50 feet (15 m) tall with a storage capacity of at least 5,000 acre-feet (6,200,000 m 3), or of any height with a storage capacity of 25,000 acre-feet (31,000,000 m 3).
Allegheny River Lock and Dam No. 8; Allegheny River Lock and Dam No. 9; Austin Dam failure (Pennsylvania) D. Davis Island Lock and Dam Site; H. Halfway Lake Dam; P.
Allegheny River Lock and Dam No. 9; D. Davis Island Lock and Dam Site; M. Merrill Lock No. 6
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The Davis Island Lock and Dam Site on the Ohio River in Avalon, Pennsylvania, is the site of the former Davis Island lock that was completed in 1885. The lock and dam existed from 1878 to 1922, designed by William Emery Merrill and the U.S. Army Corps of Engineers. The Davis Island Lock and Dam was the first dam that was constructed on the Ohio ...