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The Edersee Dam in Hesse, Germany. A dam is a barrier that stops or restricts the flow of surface water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use, aquaculture, and navigability.
A canal can be created where no stream presently exists. Either the body of the canal is dug or the sides of the canal are created by making dykes or levees by piling dirt, stone, concrete or other building materials. The finished shape of the canal as seen in cross section is known as the canal prism. [1]
The following is a list of reservoirs and dams, ... Gatun Dam; Madden Dam; Panama Canal; Puerto Rico. Carraizo Dam; Portugues Dam; Saint Lucia. John Compton Dam;
The term 'canal' is often used to describe both human-made canals and river navigations, whether free-flowing waterways, or those with locks and dams or weirs. List of lists [ edit ]
Consists of the Little Falls Canal, Great Falls Canal, Seneca Falls Canal, Payne's Falls Canal, and House Falls Canal VA: Pawtucket Canal: MA: 1796 Pennsylvania Canal: PA: Pennsylvania and Ohio Canal: PA: 1840 1877 82 mi (132 km) OH: Portage Canal: WI: 1876 1951 2 mi (3.2 km) Powell's Canal: VA: Rapidan Dam Canal of the Rappahannock Navigation ...
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).
This article is a collection of lists of natural (rivers, estuaries, and straits) and artificial (reservoirs, canals and locks) waterways. Waterways lists [ edit ]
Diversion dams do not generally impound water in a reservoir; instead, the water is diverted into an artificial water course or canal, which may be used for irrigation or return to the river after passing through hydroelectric generators, flow into a different river or be itself dammed forming an onground or groundwater reservoir or a storm drain.