Dam | Definition, History, Types, Environmental Impacts, Examples ...
WEBSep 4, 2024 · 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 created by large storms or heavy snowmelt, or to increase the depth of water in a ...
Dam - Wikipedia
WEBThe era of large dams began with the construction of the Aswan Low Dam in Egypt in 1902. The Hoover Dam, a massive concrete arch-gravity dam, was built between 1931 and 1936 on the Colorado River. By 1997, there were an estimated 800,000 dams worldwide, with some 40,000 of them over 15 meters high.
Dam Construction - Geology Science
WEBApr 23, 2023 · Dam construction involves the planning, design, and construction of structures that are built across rivers or other bodies of water for the purpose of retaining water.
Dam - The modern dam | Britannica - Encyclopedia Britannica
WEBSep 4, 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 …
Dams 101 | Association of State Dam Safety
WEBReview of plans and specifications for dam construction and major repair work; Periodic inspections of construction work on new and existing dams; Review and approval of emergency action plans; Federal Regulation Today. There are several federal government agencies involved with dam safety.
Dams - National Geographic Society
WEBJun 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. Modern-day dam builders often use concrete.
How Are Dams Built? - Digital Builder - Autodesk
WEBJun 19, 2024 · A dam is a structure commonly built across a river or stream to create a large reservoir behind it. We use dams for various human consumption purposes such as irrigation, hydroelectric power, reducing peak floodwater, and improving navigation.
21 Types of Dams in Construction – theconstructor.org
WEBReading time: 1 minute. Various types of dams are constructed based on their usage. These dams are classified based on construction material used, structure and design, functions, hydraulic design and size.
Types of Dams - US Society on Dams
WEBA dam constructed of concrete and/or masonry on the outside but having a hollow interior relying on its weight for stability. Crib dam. A gravity dam built up of boxes, crossed timbers, or gabions filled with earth or rock. Roller-compacted concrete dam.
Blood, concrete, and dynamite: Building the Hoover Dam - YouTube
WEBDig into the engineering of the Hoover Dam, a concrete arch-gravity dam on the Colorado River that supplies water to the US southwest.--In the early 20th cen...