Dam | Definition, History, Types, Environmental Impacts, Examples ...
WEBMay 21, 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 ...
Dam - Wikipedia
WEBDam. The Edersee Dam in Hesse, Germany. 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.
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 …
Dam Definition & Meaning - Merriam-Webster
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.
Dam - The modern dam | Britannica
WEBDam - The modern dam: Most 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 ...
World’s largest dams | Description & Facts | Britannica
WEBThe largest dams in the world are truly immense, often exceeding 240 metres (about 787 feet) in height and 60 million cubic metres (about 2.1 billion cubic feet) in volume. The volumes of the largest water reservoirs held back by dams range from some 60 billion cubic metres (2.1 trillion cubic feet) to nearly 3 trillion cubic metres (106 ...
Dams, Engineering, and Technology - National Geographic
WEBDams produce hydroelectric power and the reservoirs behind dams store water supplies for the long haul. Infrastructure, such as levees and canals, channel water to our homes and fields, and keep ...
How dams have reshaped our planet - BBC
WEBOct 22, 2020 · A dam does so much more than submerge a valley to create a reservoir: it transforms a river’s natural course, accruing silt and sediment at an artificial barrier, and dampening water’s ...
General Information About Dams - British Dam S
WEBA 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 …
Types of Dam - British Dam S
WEBA dam is a man made barrier usually built across a river to hold back water and forming a lake, or reservoir, behind it. It can be constructed from concrete or natural materials like earth and rock. Different types are built to suit the location and geology.
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