what are dams and multi purpose projects?
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A multipurpose dam may combine storing and supplying water for irrigation, industry and human consumption with other uses such as flood control, power generation, navigation, run-off storage and water discharge regulation.
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What is a dam? A dam is defined as a barrier or structure across a stream, river or waterway to confine and then control the flow of water. Dams vary in size from small earth embankments, often for farm use, to high massive concrete structures generally used for water supply, hydropower and irrigation.
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Humans use rivers for irrigation in agriculture, for drinking water, for transportation, to produce electricity through hydroelectric dams, and for leisure activities like swimming and boating. Each of these uses can affect the health of a river and its surrounding ecosystems.
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Dam Information A dam is defined as a barrier or structure across a stream, river or waterway to confine and then control the flow of water. Dams vary in size from small earth embankments, often for farm use, to high massive concrete structures generally used for water supply, hydropower and irrigation.
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Of course yes big dams are necessary as they are helpful in preventing floods, stored water will be used for irrigation purposes and used for generating electricity. ... Dams are for supplying water for irrigation, prevention of floods and to generate electricity. Dams are the main source for water in dry areas.
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For centuries, people have built dams to help control devastating floods. Dams create reservoirs throughout the United States that supply water for many uses, including industrial, municipal, and agricultural. Ten percent of American cropland is irrigated using water stored behind dams.
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Excavated tanks (farm dams) Excavated tanks (farm dams) provide effective water storage wherever surface water run-off can be harvested for livestock, crop spraying, irrigation and domestic use on rural properties. ... Well-designed and constructed dams are farm assets, safe and require little maintenance.
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The most common type of hydroelectric power plant uses a dam on a river to store water in a reservoir. Water released from the reservoir flows through a turbine, spinning it, which in turn activates a generator to produce electricity.
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Benefits of Dams. Dams provide a range of economic, environmental, and social benefits, including recreation, flood control, water supply, hydroelectric power, waste management, river navigation, and wildlife habitat. Dams provide prime recreational facilities throughout the United States.
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You can build a dam to provide drinking water, recreation, flood control, power generation or a small dam for livestock. The advantage of each also has some possible disadvantages.
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['Dhom Dam.', 'Hippargi barrage.', 'Almatti Dam.', 'Narayanpur Dam.', 'Bhima Dam.', 'Jurala Dam.', 'Srisailam Dam.', 'Nagarjuna Sagar Dam.']
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Dam is a place where water is stored at a height in large volumes. They are called multipurpose projects because the water stored in them solves many purposes: Maintain the water level in the rivers and increase water level during droughts. Provide water to the agricultural fields by canals for irrigation.
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Dams have a great deal of positive and negative effects on the environment be- sides their benefits like controlling stream regimes, consequently preventing floods, obtaining domestic and irrigation water from the stored water and generating en- ergy. ... Nearly 700 dams were built every ten years up to 1950s.
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Dams are classified according to their structure, intended purpose or height. On the basis of structure and material used, dams are classified as: Timber dams. Embankment dams or masonry dams.
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A dam is a barrier across flowing water that obstructs, directs or retards the flow often creating a reservoir, lake or impoundment. (i) Dams were traditionally built to impound rivers and rainwater that could be used later to irrigate agricultural fields.
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Reservoirs and dams. Reservoirs are human-made lakes created by the damming of rivers to serve one or more purposes, such as hydropower production, water supply for drinking, irrigation and flood protection. The construction of reservoirs in Europe can be illustrated using the UK and Spain as examples.
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Dams built along a river to create lakes for irrigation and the production of hydroelectric power (electricity produced from energy of running water) in one country reduce the amount of water available to other countries located further downstream.