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Dam - Wikipedia 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 Hydropower is often used in conjunction with dams to generate electricity A
Dam | Definition, History, Types, Environmental Impacts . . . dam, structure built across a stream, a river, or an estuary to retain water Dams are built to provide water for human consumption, for irrigating arid and semiarid lands, or for use in industrial processes
DAM Definition Meaning - Merriam-Webster The meaning of DAM is a barrier preventing the flow of water or of loose solid materials (such as soil or snow); especially, civil engineering : a barrier built across a watercourse for impounding water
Dams - Education | National Geographic Society A dam is a structure built across a river or stream to hold back water People have used different materials to build dams over the centuries Ancient dam builders used natural materials such as rocks or clay
Dams 101 | Association of State Dam Safety Dams provide a life-sustaining resource to people in all regions of the United States They are an extremely important part of this nation’s infrastructure—equal in importance to bridges, roads, airports, and other major elements of the infrastructure
Types of Dams - US Society on Dams Hollow gravity dam A dam constructed of concrete and or masonry on the outside but having a hollow interior relying on its weight for stability Crib dam A gravity dam built up of boxes, crossed timbers, or gabions filled with earth or rock Roller-compacted concrete dam
Dams (U. S. National Park Service) Today there are an estimated 84,000 dams across the United States Some—such as Hoover Dam—are located within national parks Dams provide valuable resources like hydropower and water, but they have a complicated history Learn more about the history of dams and the role they play in shaping America’s landscapes and powering its communities
Types of Dams - Classification of Dam Types A dam is a hydraulic structure of fairly impervious material built across a river to create a reservoir on its upstream side for impounding water for various purposes These purposes may be Irrigation, Hydropower, Water-supply, Flood Control, Navigation, Fishing and Recreation
Dam - Encyclopedia. com Dams are structures built across streams or rivers, usually to block water flow and cause the formation of a pond or lake upstream of the dam The water impounded behind a dam can be used for drinking, irrigation of crops, or generating electricity
Dam - Simple English Wikipedia, the free encyclopedia A dam is a large wall or barrier that blocks or stops the flow of water, forming a reservoir or a lake [1] Most dams have a section called a spillway or weir over which, or through which, water flows, either sometimes or always Dams generally serve the primary purpose of retaining water