What is dam?

  • (noun): A barrier constructed to contain the flow of water or to keep out the sea.
    Synonyms: dike, dyke, levee
    See also — Additional definitions below


A dam is a barrier that impounds water or underground streams. Dams generally serve the primary purpose of retaining water, while other structures such as floodgates or levees (also known as dikes) are used to manage or prevent water flow into specific land regions. Hydropower and pumped-storage hydroelectricity are often used in conjunction with dams to generate electricity. A dam can also be used to collect water or for storage of water which can be evenly distributed between locations.

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Some articles on dam:

Blackwater Reservoir
... The Blackwater Reservoir is a reservoir created behind a dam in the mountains above Kinlochleven, Lochaber, Highland, Scotland ... At over 914 m long, the dam is the longest in the Highlands ... The dam, at 27 m high, was built at an elevation of over 305m in rugged and almost inaccessible terrain, and involved the construction of some 6km of concrete aqueduct and nearly 13km ...
Batman Province - Batman Dam
... The dam construction was started in 1986 and completed in 1999 ... The dam supplies water for the area of 37744 ha ...
Dam Failure
... Dam failures are generally catastrophic if the structure is breached or significantly damaged ... Most dams incorporate mechanisms to permit the reservoir to be lowered or even drained in the event of such problems ... During an armed conflict, a dam is to be considered as an "installation containing dangerous forces" due to the massive impact of a possible destruction on the civilian population and the environment ...
Nerang River - Dams
... On the Nerang river is the Hinze Dam, creating Advancetown Lake, the Gold Coast's main water supply ... Hinze Dam has had a significant flood mitigation effect ... An older dam, higher up in the catchment and now called the Little Nerang Dam was an earlier water supply for the Gold Coast ...
History Of Isan - Recent History
... political issue at the end of the 20th century was the construction of the Pak Mun dam in the district of Khong Chiam, in Ubon Ratchathani Province ... Protesters against the Pak Mun dam joined with other grassroots activists in 1995 to form the Assembly of the Poor, a group seeking to promote the involvement of the poor in decision-making ... The same issue arose with the Rasi Salai Dam in Sisaket Province, which was also completed in 1994 for the generation of electricity it was abandoned for that purpose in 2000 and converted into a ...

More definitions of "dam":

  • (verb): Obstruct with, or as if with, a dam.
    Example: "Dam the gorges of the Yangtse River"
    Synonyms: dam up
  • (noun): Female parent of an animal especially domestic livestock.

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