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May 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.
Jun 21, 2024 · 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.
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. Hydropower is often used in conjunction with dams to generate electricity. A ...
Nov 14, 2021 · Dams are water reservoirs or just a wall-like structure built across a river to retain the water and increase the flow when needed, used for electricity generation, and various other functions. Most of the people have several questions about the basics of a dam and various purposes of it.
A dam is a structure whose building takes place across a river or stream. Holding back water is the main purpose of the dam. The use of different materials has taken place to build dams over the centuries. In the ancient era, dam builders made use of natural materials like clay or rocks for building a dam.
Dams 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...
Dams are just one component of a complete hydroelectric facility, but are one major, visible component in the system. The purpose of a hydroelectric dam is to provide a place to convert the potential and kinetic energy of water to electrical energy by using a turbine and generator.
May 21, 2024 · 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 for such sites is limited.
The 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 ...
The primary purpose of dams is for storage and safe retention of water in large quantity which is subsequently released to achieve various purposes such as irrigation, hydropower, recreation, water supply, flood prevention etc.
