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The Vaal River is the largest tributary of the Orange River in South Africa. The river has its source near Breyten in Mpumalanga province, east of Johannesburg and about 30 kilometres (19 mi) north of Ermelo and only about 240 kilometres (150 mi) from the Indian Ocean. It then flows westwards to its conjunction with the Orange River southwest of Kimberley in the Northern Cape. It is 1,458 kilometres (906 mi) long, and forms the border between Mpumalanga, Gauteng and North West Province on its north bank, and the Free State on its south.
Groblersdal is a farming town situated 32 km north of the 178 million m³ Loskop Dam in the Sekhukhune District of Limpopo.
The Olifants River,Lepelle, iBhalule or Obalule is a river in South Africa and Mozambique, a tributary of the Limpopo River. It falls into the Drainage Area B of the Drainage basins of South Africa. The historical area of the Pedi people, Sekhukhuneland, is located between the Olifants River and one of its largest tributaries, the Steelpoort River.
The Harts River is a northern tributary of the Vaal River, which in turn is the largest tributary of the Orange River. Its source is in the North West Province, but the greater part of its basin is located in the Northern Cape Province, which it enters a few kilometers downstream from the Taung Dam.
Hartbeespoort Dam is an arch type dam situated in the North West Province of South Africa. It lies in a valley to the south of the Magaliesberg mountain range and north of the Witwatersberg mountain range, about 35 kilometres north west of Johannesburg and 20 kilometres west of Pretoria. The name of the dam means "dam at the gorge of the hartebeest" in Afrikaans. This "poort" in the Magaliesberg was a popular spot for hunters, where they cornered and shot the hartebeest. The dam was originally designed for irrigation, which is currently its primary use, as well as for domestic and industrial use. The dam has suffered from a hypertrophic state since the early 1970s. Mismanagement of waste water treatment from urban zones within the Hartbeespoort Dam catchment area is largely to blame, having distorted the food web with over 280 tons of phosphate and nitrate deposits.
The Amaravathi Dam is a dam constructed across the Amaravathi River. It is located at Amaravathinagar, 25 kilometres (16 mi) south of Udumalpet on SH 17 in the Indira Gandhi Wildlife Sanctuary, Tirupur district in the Indian state of Tamil Nadu. The associated Amaravathi Reservoir is 9.31 square kilometres (3.59 sq mi) in area and 33.53 metres (110.0 ft) deep. The dam was built primarily for irrigation and flood control and now also has four megawatts of electrical generating capacity installed. It is notable for the significant population of mugger crocodiles living in its reservoir and catchment basin.
Loskop Dam Nature Reserve is situated in northern Mpumalanga province, South Africa. The reserve covers approximately 22,850 ha, if the approximately 2,350 ha surface area of the reservoir is included. The Reserve is situated in the Olifants River valley, about 55 km north of Middelburg, and comprises a hilly bushveld region, centered on the Loskop reservoir.
Blyderivierpoort Dam is a gravity-arch dam on the Blyde River, in the lower Blyde River Canyon, near Hoedspruit in Mpumalanga, South Africa. It also floods the lower reaches of the Blyde's Ohrigstad River tributary. The dam was completed in 1974. The 71 m high dam wall and 22 m deep is situated 3 km from Swadini resort by road.
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.
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.
Pongolapoort Dam, commonly referred to as Jozini Dam creating Lake Jozini, is an arch type dam in northern KwaZulu-Natal, South Africa located on the Phongolo River. The dam is situated just north of the settlement of Jozini, 280 km north-east of the port city of Durban. The dam was constructed in 1973 at the eastern end of the narrow gorge separating the Lebombo and Ubombo ranges. The dam mainly serves for irrigation purposes and its hazard potential has been ranked high (3). The Phongolo River is the dam's largest feeder and outlet as well as the dam's only perennial feeder.
Vaalharts Storage Weir is a dam in South Africa. It was established in 1936. Vaalhartz Weir is located on the Vaal River approximately 100 km downstream of Bloemhof Dam and 13 km upstream of Warrenton. The main purpose of the dam is to divert water from the Vaal River to the Vaalhartz Government Water Scheme as well as the Barkly Government Water Scheme. Water is also used for numerous small towns including Vryburg, Hartswater, Jan Kempdorp, Warrenton, Winsorton, Kipdam, Barkly West and Delportshoop.
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.
The Motlatse River, Blyde River, or Umdhlazi River is a river in the Mpumalanga and Limpopo provinces of South Africa. It has a northwards course in steep-sided valleys and ravines of the Mpumalanga Drakensberg, before it enters the lowveld region of the Limpopo province. It has its ultimate origins at around 2,000 m altitude in the Hartebeesvlakte conservation area, to the north of Long Tom Pass. It runs through the Blyde River Canyon.
Klipvoor Dam is a concrete gravity type dam located on the Moretele River, 55 km north of Brits, North West, South Africa. It was established in 1970. The main purpose of the dam is to serve for irrigation and its hazard potential has been ranked as high (3).
Stompdrift Dam is a combined multi-arch and gravity type dam located on the Olifants River near De Rust, Western Cape, South Africa.
The Vaalkop Dam is a combined gravity and earth-fill type dam located in North West Province, South Africa. Its reservoir is located at the confluence of the Elands River and the Hex River, part of the Crocodile basin. The dam was established originally in 1972 and was renovated in 2008 in order to supply water for the platinum and associated metals mining operations in the area. The dam mainly serves for irrigation purposes, municipal water supply and industrial uses. The hazard potential of the dam has been ranked high.
The Kammanassie Mountains are a mountain range in the Western Cape, South Africa. The highest peak is Mannetjiesberg at 1,955 metres above sea level and the mountain range is one of the prominent east-west trending ranges composing the southern branch of the Cape Fold Belt.
Wonderfonteinspruit is a small river situated in the Highveld region of South Africa. Its source has been disputed in the past, although it is now accepted that the river originates in the West Rand of Gauteng between Krugersdorp and Randfontein, at the Tudor Dam, which was initially used as a storage dam for the Luiperdsvlei Gold Plant. In the past the river received a majority of its water from karst springs along its course. The river flows through one of the richest gold-producing areas in the world, which led to the dolomitic compartments which fed the river being dewatered to make way for mining activities. This led to the drying up of the karst springs that fed the river.
References
- 1 2 3 4 Edwards, Cynthia (1974). "Loskop Dam". South African Panorama. Information Service of South Africa. 19 (4) – via Internet Archive.
