Hartbeespoort reservoir
| Hartbeespoort reservoir | |||||||||
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| Coordinates | 25 ° 44 ′ 51 ″ S , 27 ° 52 ′ 1 ″ E | ||||||||
| Data on the structure | |||||||||
| Construction time: | 1921-1923 | ||||||||
| Height of the barrier structure : | 59 m | ||||||||
| Crown length: | 150 m | ||||||||
| Base width: | 22 m | ||||||||
| Data on the reservoir | |||||||||
| Water surface | 20.6 km 2 | ||||||||
| Storage space | 195 million m 3 | ||||||||
| Catchment area | 4112 km 2 | ||||||||
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The Hartbeespoort Reservoir (official name of dam and reservoir: Hartbeespoort Dam Reservoir ) is a dam in South Africa in the Northwest Province about 35 kilometers west of Pretoria , which is in the middle of the Hartbeespoort Nature Reserve . The barrier structure was built on a narrow opening through the Magaliesberg and dammed the water of the Crocodile River and the Magalies River with an arch dam .
In 1912, the South African government acquired the land required to build the dam . It was built between 1921 and 1923. In 1925 the reservoir was filled for the first time to the point that water poured out of it. After its completion, the lake and the surrounding area became a popular vacation and weekend getaway for the residents of Johannesburg and Pretoria, which they still are today. The lake, together with the Vaal reservoir, is one of the few water sports areas in and around Gauteng .
Due to the high tourist attraction, zoos , sports facilities, numerous restaurants and hotels as well as a cable car, the Aerial Cableway Hartbeespoort , have settled.
The reservoir was built for irrigation purposes. Today he irrigates 160 square kilometers in the area.
The reservoir is known for its very poor water quality. Large amounts of phosphates and nitrates from agriculture in the catchment area and from untreated wastewater from the neighboring areas of Gauteng are washed into the lake. The resulting eutrophication can be recognized by the often intensely green color of the water.
The mean water depth of the reservoir is 9.6 meters and the maximum water depth is 45.1 meters.
A road leads over the top of the wall.
Others
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The reservoir was named after the Afrikaans name Hartbeespoort (German "Hartebeest Pass"; Afrikaans Hartebeest , German " Kuhantilope "). This refers to the narrow breakthrough through the Magaliesberg or the same-named, now flooded farm of General Hendrik Schoeman . The area is accessible from National Road 4 South .
In 2016, Hartbeespoort had the highest air pollution in South Africa.
In 1982 the asteroid (1914) Hartbeespoortdam was named after the reservoir.
See also
Web links
- Portrait at dwa.gov.za (English)
- Information (German) at South Africa.net : http://suedafrika.net/Norden/hartbeespoortdam.htm ( Memento from January 28, 2010 in the Internet Archive ) and Südafrikatour.de [1]
- For water quality: doi: 10.1007 / BF00007581
- Information on the history: http://www.unwind.co.za/history_of_magaliesberg.htm ( Memento from August 12, 2011 in the Internet Archive ) (English)
Individual evidence
- ↑ The most polluted city in South Africa is not where you expect. ( Memento from May 12, 2016 in the Internet Archive ) businesstech.co.za (English)
- ↑ Hartbeespoort reservoir at the IAU Minor Planet Center (English)