Maguga Dam
Encyclopedia
The Maguga Dam is a dam
on the Komati River
in Swaziland
. It is 115 metre's high and is located 11 kilometres south of Piggs Peak
. The dam is located at 26°4′51.57"S 31°15′25.84"E and was completed in 2001.
The dam embankment comprises approximately 800 000m3 of clay, 2 800 000m3 of granite rock and 43 000m3 of filter material. It has an overall height of 115 metres, a crest length of 870 metres and a base width of 400 metres.
Because the dam is located within a region influenced by cyclones, it has been designed to withstand a probable maximum flood of 15000 m³/s. The 180m long labyrinth spillway is designed to pass a flood of 7800 m³/s without damage representing a return flood of 200 years.
The Maguga Dam received the South African Institution of Civil Engineering award for most outstanding civil engineering achievement in the International Category for 2001. The Maguga Dam Joint Venture received the South African Association of Consulting Engineers (SAACE) Glenrand MIB Golden Jubilee award in the Technical Excellence Category for 2002.
Dam
A dam is a barrier that impounds water or underground streams. Dams generally serve the primary purpose of retaining water, while other structures such as floodgates or levees are used to manage or prevent water flow into specific land regions. Hydropower and pumped-storage hydroelectricity are...
on the Komati River
Komati River
The Komati River is a river in South Africa, Swaziland and Mozambique. It is long, with a drainage basin in size. Its mean annual discharge is 111 m³/s at its mouth...
in Swaziland
Swaziland
Swaziland, officially the Kingdom of Swaziland , and sometimes called Ngwane or Swatini, is a landlocked country in Southern Africa, bordered to the north, south and west by South Africa, and to the east by Mozambique...
. It is 115 metre's high and is located 11 kilometres south of Piggs Peak
Piggs Peak
Piggs Peak is a town in north western Swaziland. It was founded around gold prospecting in 1884, but its main industry is now forestry. The Phophonyane Falls lie near the town. Piggs Peak Casino takes its name from the area...
. The dam is located at 26°4′51.57"S 31°15′25.84"E and was completed in 2001.
The dam embankment comprises approximately 800 000m3 of clay, 2 800 000m3 of granite rock and 43 000m3 of filter material. It has an overall height of 115 metres, a crest length of 870 metres and a base width of 400 metres.
Because the dam is located within a region influenced by cyclones, it has been designed to withstand a probable maximum flood of 15000 m³/s. The 180m long labyrinth spillway is designed to pass a flood of 7800 m³/s without damage representing a return flood of 200 years.
The Maguga Dam received the South African Institution of Civil Engineering award for most outstanding civil engineering achievement in the International Category for 2001. The Maguga Dam Joint Venture received the South African Association of Consulting Engineers (SAACE) Glenrand MIB Golden Jubilee award in the Technical Excellence Category for 2002.