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 dam can also be used to collect or store water which can be evenly distributed between locations. Dams generally serve the primary purpose of retaining water, while other structures such as floodgates or levees are used to manage or prevent water flow into specific land regions.
The Vaal Dam in South Africa was constructed in 1938 and lies 77 km south of OR Tambo International Airport, Johannesburg. The lake behind the dam wall has a surface area of about 320 square kilometres (120 sq mi) and is 47 meters deep. The Vaal Dam lies on the Vaal River, which is one of South Africa's strongest-flowing rivers. Other rivers flowing into the dam are the Wilge River, Klip River, Molspruit and Grootspruit. It has over 800 kilometres (500 mi) of shoreline and is South Africa's second biggest dam by area and the fourth largest by volume.
The Gatun Dam is a large earthen dam across the Chagres River in Panama, near the town of Gatun. The dam, constructed between 1907 and 1913, is a crucial element of the Panama Canal; it impounds the artificial Gatun Lake, which in turn carries ships 33 kilometres (21 mi) of their transit across the Isthmus of Panama. In addition, a hydro-electric generating station at the dam generates electricity which is used to operate the locks and other equipment in the canal.
The Crotty Dam, also known during construction as the King Dam, or the King River Dam on initial approval, is a rockfill embankment dam with a controlled and uncontrolled spillway across the King River, between Mount Jukes and Mount Huxley, located in Western Tasmania, Australia.
GandhisagarDam is situated at a distance of 168 km from the District headquarter. The Dam is constructed on the Chambal River.
Internal erosion is the formation of voids within a soil caused by the removal of material by seepage. It is the second most common cause of failure in levees and one of the leading causes of failures in earth dams, responsible for about half of embankment dam failures.
The Gordon Dam, also known as the Gordon River Dam, is a major gated double curvature concrete arch dam with a controlled spillway across the Gordon River, located in Southwest National Park, Tasmania, Australia. The impounded reservoir is called Lake Gordon.
The Sterkfontein Dam, located just outside the town of Harrismith, in the Free State, province of South Africa, is part of the Tugela-Vaal Water Project and the Drakensberg Pumped Storage Scheme, and located on the Nuwejaarspruit, a tributary of the Wilge River in the upper catchment area of the Vaal River. It is the second highest dam wall in South Africa and its highest earth fill dam.
A tailings dam is typically an earth-fill embankment dam used to store byproducts of mining operations after separating the ore from the gangue. Tailings can be liquid, solid, or a slurry of fine particles, and are usually highly toxic and potentially radioactive. Solid tailings are often used as part of the structure itself.
The Australian National Committee on Large Dams is an Australian-based non-government, non-profit and voluntary association of organisations and individual professionals with a common technical interest in large dams and their environs. ANCOLD is not an advocate for dams but an apolitical industry body that focuses on disseminating knowledge, developing capability and providing guidance on all aspects of dam engineering, management and associated issues.
The Samanala Dam is a dam primarily used for hydroelectric power generation in Sri Lanka. Commissioned in 1992, the Samanalawewa Project is the third-largest hydroelectric scheme in the country, producing 405 GWh of energy annually. It was built with financial support from Japan and the United Kingdom. It is notable for a large leak on its right bank. Power production continues as planned despite the leakage, and the water from the leak now provides two thirds of the water issued by the reservoir for agriculture in downstream areas.
The Yeywa Hydropower Station, located on the Myitnge River, 52 kilometres (32 mi) southeast of Mandalay city, at Yeywa village in Kyaukse Township, Mandalay Region in central Myanmar, is the country's first roller-compacted concrete (RCC) dam, and the site of a 790-megawatt (1,060,000 hp) hydroelectric power plant, the largest in the country.
The Shin-Takasegawa Pumped Storage Station (新高瀬川発電所) uses the Takase River to operate a pumped storage hydroelectric scheme about 12 kilometres (7.5 mi) west of Ōmachi in Nagano Prefecture, Japan. Part of the system is within Chūbu-Sangaku National Park.
Lower Manair Dam also known as LMD was constructed across the Manair River, at Alugunur village, Thimmapur mandal, Karimnagar District, in the Indian state of Telangana during 1974 to 1985. It provides irrigation to a gross command area of 163,000 hectares.
Nori Gopala Krishna Murti was an Indian civil engineer, known for his contributions for the implementation of Koyna Hydroelectric Project. He was the chairman of Bhakra Dam Management Board and the vice-chairman of the International Congress on Large Dams. The Government of India awarded him the Padma Shri, the fourth highest civilian award, in 1963. He received the Padma Bhushan, the third highest civilian award, in 1972.
François Lempérière, born in 1926 in Cherbourg, is a French civil engineer who built and/or designed 15 dams in France and other countries. He invented solutions such as Fusegates, Piano Keys Weir, Twin Dams and Tidal Gardens. He received his education at Ecole Polytechnique and Ecole Nationale des Ponts et Chaussées.
The Romaine-1 Generating Station is a 270 MW hydroelectric generating station on the Romaine River in the Côte-Nord region of the province of Quebec, Canada. It is owned and operated by Hydro-Québec.
Reservoirs storing large volumes of water have the capability of causing considerable damage and loss of life if they fail. Reservoirs are considered "installations containing dangerous forces" under international humanitarian law because of their potential adverse impact. In 1975 the failure of the Banqiao Reservoir Dam and other dams in Henan Province, China caused more casualties than any other dam failures in history. The disaster killed an estimated 171,000 people and 11 million people lost their homes.
The Alwero Dam, also known as the Abobo Dam, is a reservoir and irrigation system in the Abobo district of Gambela Region, Ethiopia. It was built in 1985 with Soviet Union aid, as part of a strategy by the Derg regime led by former Ethiopian President Mengistu Haile Mariam to increase resource spending on irrigation following the 1983–1985 famine in Ethiopia. It is located at a longitude of 34.4824508 and latitude of 7.8476356 on Alwero’s river, Abobo, Gambela Region. It was constructed for irrigation, with a water capacity of 74.6 million cubic metres, and a dam height of 22 metres. This offers a conducive environment for water resources development for the population settled in the lowlands area to irrigate the farm in the local region. It drains into the Nile Basin and has the capacity to irrigate over 10,000 hectares (100,000,000 m2) of land. But on the ground there is no irrigated land for agriculture and others, the land is empty aso our stomach empty the irrigation on Travel to south Sudan without give any benefit in Ethiopia except Some fisherman collect fish by individual
