The Orange River is the longest river in South Africa and the Orange River Basin extends extensively into Namibia and Botswana to the north. It rises in the Drakensberg mountains in Lesotho, flowing westwards through South Africa to the Atlantic Ocean. The river forms part of the international borders between South Africa and Namibia and between South Africa and Lesotho, as well as several provincial borders within South Africa. Except for Upington, it does not pass through any major cities. The Orange River plays an important role in the South African economy by providing water for irrigation and hydroelectric power. The river was named the Orange River in honour of the Dutch ruling family, the House of Orange, by the Dutch explorer Robert Jacob Gordon. Other names include Gariep River, Groote River or Senqu River.
The Molopo River is one of the main rivers in Southern Africa. It has a length of approximately 960 kilometres and a catchment area of 367,201 km2 with Botswana, Namibia and South Africa sharing roughly about a third of the basin each.
Gariep Dam 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.
Bospoort Dam is a gravity/earth-fill type dam on the Hex River, a tributary of the Elands River, part of the Crocodile River (Limpopo) basin. It is located near Rustenburg, North West, South Africa. Its primary purpose is for irrigation.
Elandskloof Dam is a gravity type dam located on the Elands River, near Villiersdorp, Western Cape, South Africa. It was established in 1976. The primary purpose of the dam is for irrigation and domestic water supply. Its hazard potential has been ranked high (3).
Grootdraai Dam is a combined gravity and earth-fill type dam located on the Vaal River, near Standerton, Mpumalanga, South Africa. It was established in 1981.
Inanda Dam is an earth-fill type dam located on the Mgeni River, near Hillcrest, KwaZulu-Natal, South Africa. It was established in 1989 and its primary purpose is to serve for domestic and industrial use.
Luphephe Dam is an arch type dam located on the Luphephe River, a tributary of the Nwanedi River, part of the Limpopo River basin. It is located 48 km to the SW of Musina, Limpopo, South Africa. It was established in 1964 and it serves mainly for irrigation purposes. The hazard potential of the dam has been ranked high (3).
Mokolo Dam is a rock-fill type dam located on the Mokolo River, near Lephalale, Limpopo, South Africa. It was established in 1980. The Malmanies River and the Bulspruit River, two tributaries of the Mokolo, also enter the dam from its left side. The dam supplies water to Lephalale town. The dam mainly serves for municipal and industrial purposes and its hazard potentials has been ranked high (3).
Nwanedi Dam is an arch type dam located on the Nwanedi River, part of the Limpopo River basin. It is located in Limpopo Province, South Africa. It was established in 1964 and serves mainly for irrigation purposes. The hazard potential of the dam has been ranked high (3).
Ncora Dam is a gravity type dam 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).
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).
The Levubu River or Levuvhu is located in the northern Limpopo province of South Africa. Some of its tributaries, such as the Mutshindudi River and Mutale River rise in the Soutpansberg Mountains.
Fika-Patso Dam is a combined earth-fill/rock-fill type dam located on the Namahadi River, the uppermost section of the Elands River, a tributary of the Wilge River.
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).
Injaka Dam, also spelled Inyaka Dam is an earth-fill type dam located on the Ngwaritsane River, near Bushbuckridge, Mpumalanga, South Africa. It was established in 2001 and its primary purpose is to store water for irrigation use. The hazard potential of the dam has been ranked as high (3).
The Crocodile River is a river in South Africa. After its confluence with the Marico River, both rivers form the Limpopo River.
Middelburg Dam is a dam located on the Klein Olifants River, part of the Olifants River basin. It is located near Middelburg, Mpumalanga, South Africa. Construction was completed in 1978. The primary purpose of the dam is to serve for water supply and its hazard potential has been ranked high (3).
