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The nearly 8100 major dams in the United States in 2006. The National Inventory of Dams defines a 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).
Dams on tributaries are listed if they are taller than 250 ft (76 m), store more than 50,000 acre⋅ft (62,000 dam 3), or are otherwise historically notable. Tributary dams are organized into two lists; those in the Upper Basin, defined as the half of the Colorado River basin above Lee's Ferry, Arizona, and the Lower Basin.
This is a list of dams in the watershed of the Missouri River, a tributary of the Mississippi River, in the United States. There are an estimated 17,200 dams and reservoirs in the basin, most of which are small, local irrigation structures.
A saddle dam is an auxiliary dam constructed to confine the reservoir created by a primary dam either to permit a higher water elevation and storage or to limit the extent of a reservoir for increased efficiency. An auxiliary dam is constructed in a low spot or "saddle" through which the reservoir would otherwise escape.
Following is a complete list of the approximately 340 dams owned by the United States Bureau of Reclamation as of 2008. [ 1 ] The Bureau was established in July 1902 as the "United States Reclamation Service" and was renamed in 1923.
Garrison Dam is an earth-fill embankment dam on the Missouri River in central North Dakota, U.S. Constructed by the U.S. Army Corps of Engineers from 1947 to 1953, at over two miles (3.2 km) in length, the dam is the fifth-largest earthen dam in the world. [4] The reservoir impounded by the dam is Lake Sakakawea, which extends to Williston and ...
Removal of this privately-owned hydropower dam in western North Carolina will be a boon for rafters, kayakers and tubers by allowing the river to flow freely for nearly 80 miles (129 kilometers).
The Oahe Dam (/ oʊ ˈ ɑː h iː /) is a large earthen dam on the Missouri River, just north of Pierre, South Dakota, United States. Begun in 1948 and opened in 1962, the dam creates Lake Oahe, the fourth-largest man-made reservoir in the United States. The reservoir stretches 231 miles (372 km) up the course of the Missouri to Bismarck, North ...