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Dam | Definition, History, Types, Environmental Impacts, …
https://www.britannica.com/technology/dam-engineering
WEBMar 7, 2024 · 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. They are used to increase the amount of water available for generating hydroelectric power, to reduce peak discharge of floodwater ...
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Dam - Wikipedia
https://en.wikipedia.org/wiki/Dam
WEBA 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 ...
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Dams - National Geographic Society
https://www.nationalgeographic.org/encyclopedia/dams/
WEBOct 19, 2023 · ENCYCLOPEDIC ENTRY. Dams. A dam is a structure built across a stream or river to hold water back. Dams can be used to store water, control flooding, and generate electricity. Grades. 5 - 8. Subjects. Conservation, Earth Science, Geology, Meteorology. Image. Aerial view of the Hoover Dam. An aerial view of the Hoover Dam.
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Dam Definition & Meaning - Merriam-Webster
https://www.merriam-webster.com/dictionary/dam
WEBThe 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. How to use dam in a sentence.
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Dam - The modern dam | Britannica
https://www.britannica.com/technology/dam-engineering/The-modern-dam
WEBMost modern dams are of two basic types: masonry (concrete) gravity designs and embankment (earthfill or rockfill) designs. Masonry dams are typically used to block streams running through relatively narrow gorges, as in mountainous terrain; although the structures may be very high, the total amount of material required for such sites is limited.
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Dams 101 | Association of State Dam Safety
https://damsafety.org/dams101
WEBThe purpose of a dam is to impound (store) water, wastewater or liquid borne materials for any of several reasons, such as flood control, human water supply, irrigation, livestock water supply, energy generation, containment of mine tailings, recreation, or pollution control. Many dams fulfill a combination of the above functions.
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dam summary | Britannica
https://www.britannica.com/summary/dam-engineering
WEBdam, Barrier built across a stream, river, or estuary to conserve water for such uses as human consumption, irrigation, flood control, and hydroelectric power generation. The earliest recorded dam is believed to be a masonry structure 15 m (49 ft) high built across the Nile River in Egypt c. 2900 bce. Modern dams are generally built of earth ...
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Dams, Engineering, and Technology - National Geographic
https://www.nationalgeographic.com/environment/article/dams-engineering
WEB2 min read. In the developed world there is really nothing natural about the way we get our water. Dams produce hydroelectric power and the reservoirs behind dams store water supplies for the...
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More than 2,200 U.S. dams are in poor condition, posing danger …
https://www.npr.org/2022/05/05/1096940224/dams-poor-condition-hazardous-dangerous-infrastructure
WEBMay 5, 2022 · The Associated Press. Enlarge this image. Constructed four generations ago, the massive dam at El Capitan Reservoir in Lakeside, Calif., is capable of storing over 36 billion gallons of water —...
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Global Dam Tracker: A database of more than 35,000 dams with …
https://www.nature.com/articles/s41597-023-02008-2
WEBFeb 23, 2023 · 17 Citations. 18 Altmetric. Metrics. Abstract. We present one of the most comprehensive geo-referenced global dam databases to date. The Global Dam Tracker (GDAT) contains 35,000 dams with...
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