Dam - Wikipedia
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 ...
Dam - Simple English Wikipedia, the free encyclopedia
WEBA dam is a large wall or barrier that blocks or stops the flow of water, forming a reservoir or a lake. 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 …
List of dams and reservoirs in the United States - Wikipedia
WEBThe following is a partial list of dams and reservoirs in the United States. There are an estimated 84,000 dams in the United States, impounding 600,000 mi (970,000 km) of river or about 17% of rivers in the nation. [2]
Dam | Definition, History, Types, Environmental Impacts, Examples ...
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 ...
Embankment dam - Wikipedia
WEBThe principal element of the project is an embankment 9,000 feet (2,700 m) long with a maximum height of 465 feet (142 m). The dam used approximately 200 million cubic yards (152.8 million cu. meters) of fill, which makes it one of …
Dams - National Geographic Society
WEBOct 19, 2023 · 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. Modern-day dam builders often use concrete.Manmade dams create artificial lakes called reservoirs.. Reservoirs can be used to store water for farming, industry, and household use.
Hoover Dam | Description, Location, Constructino, Facts, History ...
WEBMar 4, 2024 · Hoover Dam, dam in Black Canyon on the Colorado River, at the Arizona - Nevada border, U.S. Constructed between 1930 and 1936, it is the highest concrete arch- gravity dam in the United States. It impounds Lake Mead, which extends for 115 miles (185 km) upstream and is one of the largest artificial lakes in the world.
Hydroelectricity - Simple English Wikipedia, the free encyclopedia
WEB[1] Hydroelectricity is electricity made by generators that are turned by the movement of water. It is usually made with dams that partly block a river to make a reservoir of water. Water is released, and the pressure of the dam (potential energy stored in the dam) forces the water down pipes that lead to a turbine.
dam summary | Britannica
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.
Hoover Dam - Simple English Wikipedia, the free encyclopedia
WEBThe Hoover Dam is a large dam on the Colorado River. It is on the border of the states of Arizona and Nevada. The reservoir it made is called Lake Mead. The dam is named after the former US President Herbert Hoover.
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