The Lesotho Highlands Water Project (LHWP) is an ongoing water supply project with a hydropower component, developed in partnership between the governments of Lesotho and South Africa. It comprises a system of several large dams and tunnels throughout Lesotho and delivers water to the Vaal River System in South Africa. In Lesotho, it involves the rivers Malibamatso, Matsoku, Senqunyane, and Senqu. It is Africa's largest water transfer scheme.
The Gariep Dam is located in South Africa, near the town of Norvalspont, bordering the Free State and Eastern Cape provinces. Its primary purpose is for irrigation, domestic and industrial use as well as for power generation.
Gosling Creek Dam is a decommissioned minor earth and rock fill with clay core embankment dam with concrete chute spillway across the Gosling Creek upstream of Orange in the central western region of New South Wales, Australia. Commissioned in 1890 to supply Orange with potable water, the dam was decommissioned after the official commissioning of the Suma Park Dam in 1962. The impounded reservoir is called Gosling Creek Reservoir and is now used for recreation purposes.
Suma Park Dam is a concrete arch dam across the Summer Hill Creek in the central west region of New South Wales, Australia. The main purpose of the dam is to supply potable water to the city of Orange. The impounded reservoir is called Suma Park Reservoir.
Spring Creek Dam is a minor embankment dam across the Spring Creek upstream of Orange in the central western region of New South Wales, Australia. The impounded reservoir is called the Spring Creek Reservoir.
The Vanderkloof Dam is situated approximately 130 km (81 mi) downstream from Gariep Dam and is fed by the Orange River, South Africa's largest river. Vanderkloof Dam is the second-largest dam in South Africa, having the highest dam wall in the country at 108 metres (354 ft). The dam was commissioned in 1977; it has a capacity of 3,187.557 million cubic metres (2,584,195 acre⋅ft) and a surface area of 133.43 square kilometres (51.52 sq mi) when full. Other rivers flowing into this dam are the Berg River, two unnamed streams coming in from the direction of Reebokrand, the Knapsak River, Paaiskloofspruit, Seekoei River, Kattegatspruit and the Hondeblaf River, in a clockwise direction.
The Riet River is a westward-flowing tributary of the Vaal River in central South Africa. In precolonial times the Riet was known as the Gama-!ab, a !Kora name meaning 'muddy'. Its main tributary is the Modder River and after the confluence the Riet River flows westwards to meet the Vaal.
Upper Orange WMA, or Upper Orange Water Management Area , Includes the following major rivers: the Modder River, Riet River, Caledon River and Orange River, and covers the following Dams:
Beervlei Dam is a dam in the Groot River, Eastern Cape, South Africa. It was established in 1957, has a capacity of 85,800,000 cubic metres (3.03×109 cu ft), and a surface area of 23.145 square kilometres (8.936 sq mi), and the dam wall is 31 m high. The main purpose of the dam is to provide flood absorption. The Karoo sediments in the area contain a lot of salts and it has been found that lengthy storage of water results in high water salinity. Any flood water is used as quickly as possible by the downstream irrigators and the reservoir is kept empty for extended periods.
Boegoeberg Dam is a gravity type dam on the Orange River, near Prieska, Northern Cape, South Africa. Building was started in 1926 and completed by 1933. Boegoeberg is named for the small tree Croton gratissimus, also known as Bergboegoe. Its primary purpose is for irrigation and it has a low hazard potential.
Boskop Dam is an earth-fill type dam on the Mooi River, near Potchefstroom, North West Province, South Africa. It was constructed in 1959. The main purpose of the dam is for irrigation and domestic usage. Its hazard potential is ranked as high, due to poor maintenance and the development of sink holes.
Bridle Drift Dam is a rock-fill type dam on the Buffalo River, near East London, Eastern Cape, South Africa. It was first constructed in 1969 and renovated in 1994. The purpose of the dam is for industrial and domestic use, the reservoir is now the main drinking water supply for Buffalo City.
Klerkskraal Dam is a combined gravity and arch type dam located on the Mooi River, near Ventersdorp, North West, South Africa. It was established in 1969 and its main purpose is to serve for irrigation. The hazard potential of the dam has been ranked high (3). The dam is also a well known bass fishing destination in the region.
Klipdrif Dam is an earth-fill type dam located on the Loopspruit and Enselspruit near Potchefstroom, North West, South Africa. The river flowing out the dam is the Loopspruit. It was established in 1990 and its primary purpose is to serve for irrigation. The hazard potential of the dam has been ranked significant (2).
Ncora Dam is a gravity type dam built by Concor and located on the Tsomo River, near Tsomo, Eastern Cape, South Africa. It was established in 1972 and serves mainly for irrigation purposes. The hazard potential of the dam has been ranked high (3).
Voëlvlei Dam is a dam located in the Western Cape, South Africa near the town of Gouda. The earth-fill wall is 2,910 metres (9,550 ft) long and 10 metres (33 ft) high. The reservoir covers an area of 1,524 hectares and has a capacity of 168,000 megalitres, making it the second-largest reservoir in the Western Cape Water Supply System. Water from the reservoir is supplied to water treatment works of the City of Cape Town and the West Coast District Municipality, and can also be released into the Berg River for agricultural purposes or to fill the Misverstand Dam.
Welbedacht Dam is a concrete-gravity type dam situated in South Africa, and was established in 1973. Bloemfontein is the sixth-largest city in South Africa, with a population around 300 000. It is situated in the Modder River catchment, which has insufficient water resources to meet the growing water requirements. The water supply to Bloemfontein is, therefore, augmented from the adjacent Caledon River by means of the Caledon - Modder River Government Water Scheme (CMRGWS).
Hazelmere Dam is a combined concrete gravity type dam located on the Mdloti River, Kwazulu Natal, South Africa. It was established in 1977 and its primary purpose is to serve for irrigation and domestic use. The hazard potential of the dam assembly has been ranked high (3).
The Vaal River Barrage Reservoir is a dam on the Vaal River near Vanderbijlpark, border Gauteng and Free State, South Africa.
