Grand Coulee Dam is a concrete gravity dam on the Columbia River in the U.S. state of Washington, built to produce hydroelectric power and provide irrigation water. Constructed between 1933 and 1942, Grand Coulee originally had only two powerhouses. The third powerhouse ("Nat"), completed in 1974 to increase energy production, makes Grand Coulee the largest power station in the United States by nameplate-capacity at 6,809 MW.
The Columbia Basin Project in Central Washington, United States, is the irrigation network that the Grand Coulee Dam makes possible. It is the largest water reclamation project in the United States, supplying irrigation water to over 670,000 acres (2,700 km2) of the 1,100,000 acres (4,500 km2) large project area, all of which was originally intended to be supplied and is still classified as irrigable and open for the possible enlargement of the system. Water pumped from the Columbia River is carried over 331 miles (533 km) of main canals, stored in a number of reservoirs, then fed into 1,339 miles (2,155 km) of lateral irrigation canals, and out into 3,500 miles (5,600 km) of drains and wasteways. The Grand Coulee Dam, powerplant, and various other parts of the CBP are operated by the Bureau of Reclamation. There are three irrigation districts in the project area, which operate additional local facilities.
The ca. 1000 km long Tana River is the longest river in Kenya, and gives its name to the Tana River County. Its catchment covers ca. 100,000 km² and can be divided into the headwaters and the lower Tana consisting of the section downstream of Kora where the river flows for ca. 700 km through semi-arid plains. Its tributaries include the Thika, Ragati River from Mt.Kenya as well as several smaller rivers that flow only during the rainy season. The river rises in the Aberdare Mountains to the west of Nyeri. Initially it runs east before turning south around the massif of Mount Kenya. A series of hydroelectric dams has been constructed along the river. These include the Masinga Dam, the Kamburu Dam, the Gitaru Dam, the Kindaruma Dam and the Kiambere Dam .en The Masinga Reservoir and the Kiambere Reservoir, created by the Masinga and Kiambere dams respectively, serve a dual purpose: hydro-electric power (HEP) generation and agricultural irrigation. The other three are used exclusively for HEP generation. A 2003 study reported that two-thirds of Kenya's electrical needs were supplied by the series of dams along the Tana River. Many people believe this river has groundwater underneath it, but it doesn't. The electricity is then supplied to the national grid system and distributed countrywide through a series of substations, transformers and cables.
Pine Flat Dam is a concrete gravity dam on the Kings River in the Central Valley of Fresno County, California United States. Situated about 28 miles (45 km) east of Fresno, the dam is 440 feet (130 m) high and impounds Pine Flat Lake, one of the largest reservoirs in California, in the foothills of the Sierra Nevada just outside the boundary of Kings Canyon National Park. The dam's primary purpose is flood control, with irrigation, hydroelectric power generation and recreation secondary in importance.
The Klamath Project is a water-management project developed by the United States Bureau of Reclamation to supply farmers with irrigation water and farmland in the Klamath Basin. The project also supplies water to the Tule Lake National Wildlife Refuge, and the Lower Klamath National Wildlife Refuge. The project was one of the first to be developed by the Reclamation Service, which later became the Bureau of Reclamation.
Nagarjuna Sagar Dam is a masonry dam across the Krishna River at Nagarjuna Sagar which straddles the border between Guntur district in Andhra Pradesh and Nalgonda district in Telangana.
Terminus Dam is a dam on the Kaweah River in Tulare County, California in the United States, located near Three Rivers about 15 mi (24 km) from the western boundary of Sequoia National Park and 20 mi (32 km) east of Visalia. The dam forms Lake Kaweah for flood control and irrigation water supply. Completed by the U.S. Army Corps of Engineers (USACE) in 1962, Terminus is an earthfill dam 255 ft (78 m) high and 2,375 ft (724 m) long. The reservoir has a maximum capacity of 185,600 acre⋅ft (0.2289 km3) of water, although it usually sits at much lower levels.
Kenya Electricity Generating Company or simply KenGen is a parastatal company, and is the largest electric power producer in Kenya producing over 60% of the electricity consumed in the country.
The Turkwel Hydroelectric Power Station, also Turkwel Dam, is an arch dam on the Turkwel River about 76 km (47 mi) north of Kapenguria in West Pokot County, Kenya. The dam serves several purposes to include hydroelectric power production, irrigation tourism and fisheries. It was constructed between 1986 and 1991. It supports the third largest hydroelectric power plant in the country, having an installed electric capacity of 106 megawatts (142,000 hp).
The Kafin Zaki Dam is a controversial project to build a reservoir on the Jama'are River in Bauchi State in the Northeast of Nigeria.
The Gilgel Gibe III Dam is a 250 m high roller-compacted concrete dam with an associated hydroelectric power plant on the Omo River in Ethiopia. It is located about 62 km (39 mi) west of Sodo in the Southern Nations, Nationalities, and Peoples' Region. Once fully commissioned, it will be the third largest hydroelectric plant in Africa with a power output of about 1870 Megawatt (MW), thus more than doubling total installed capacity in Ethiopia from its 2007 level of 814 MW. The Gibe III dam is part of the Gibe cascade, a series of dams including the existing Gibe I dam and Gibe II power station as well as the planned Gibe IV and Gibe V dams. The existing dams are owned and operated by the state-owned Ethiopian Electric Power, which is also the client for the Gibe III Dam.
The Bakolori Dam is in Sokoto State in northwest Nigeria. It was completed in 1978 and its reservoir filled by 1981. It is a major reservoir on the Sokoto River, a tributary of the Rima River, which in turn feeds the Niger River. Water from the dam supplies the Bakolori Irrigation Project.
The Queen Sirikit Dam is an embankment dam on the Nan River, a tributary of the Chao Phraya River, in Tha Pla District, Uttaradit Province, Thailand. It is at the southeastern edge of the Phi Pan Nam Range. The dam was built for the purpose of irrigation, flood control and hydroelectric power production. It is named after Sirikit, Queen of Thailand.
Nagarjuna Sagar tail pond is a multipurpose reservoir located 21 km downstream from the Nagarjuna Sagar Dam across the Krishna River near Satrasala in Nalgonda district, India. Its gross water storage capacity is 6 Tmcft. The reservoir water spread area extends up to the toe of the Nagarjuna Sagar dam. The project was completed by July 2014.
Masinga Hydroelectric Power Station, also Masinga Dam, is an embankment dam on the Tana River, the longest river in Kenya. It straddles the border of Embu and Machakos Counties in Eastern Province and is located about 106 km. (66 mi.), by road, northeast of Nairobi, Kenya's capital and largest city.
Gogo Falls is an archaeological site near a former and since 1956 dammed waterfall, located in the Lake Victoria Basin in Migori County, western Kenya. This site is important to archaeology as it includes some of the earliest appearances of artifacts and domestic animals in the area. The findings at the site help to reconstruct the later prehistory around Lake Victoria, including a Pastoral Neolithic occupation by Elmenteitan peoples and a later Iron Age occupation. Artifacts found at the site included pottery and iron artifacts. Through these artifacts some of the cultural traditions of the people who lived near Gogo Falls were discovered.
The Tana Hydroelectric Power Station is a 20 MW (27,000 hp) hydroelectric power station on the Tana River in southern Kenya.
The Castanhão Dam is a dam in the state of Ceará, Brazil. It is the largest multiple use reservoir in the country, the largest on an intermittent river, and the main reservoir for the state and the metropolitan region of Fortaleza. The dam supplies drinking water, and supports industry, irrigation and fish farming. Through steady release of water the dam maintains water flow in the Jaguaribe River throughout the year. During 2012–16 Ceará experienced a prolonged drought. Water levels in the reservoir dropped to 5% of capacity and usage had to be rationed.
