Maguga Dam
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The Maguga Dam is a dam on the Komati River in Eswatini.[1] It is Script error: No such module "convert". high and is located about Script error: No such module "convert". south of Piggs Peak.[2] It was built as a joint project of the governments of South Africa and Eswatini.[1][3] As of 2005, it was the largest public works project ever undertaken by Eswatini.[4] The dam was completed in mid-2001.[3][5]
Planning and purpose
In 1992, the eSwatini and South Africa governments signed a treaty covering the "design, construction, operation and maintenance" of the Driekoppies and Maguga Dams.[3] As the former benefited South Africa exclusively (though the resulting reservoir lay partially in Eswatini), South Africa bore the entire cost for that dam.[3] As for the latter, Eswatini was responsible for about 40% of the cost.[3] The dam's primary purpose is irrigation (for water-intensive sugar cane, forestry and "about 1000 of Eswatini's small farmers"[6]) but a hydroelectric power station with a capacity of 20 MW (generated from two units, each with a capacity of 9.9 MW[7]) was to be completed in October 2006.[1]
Description
Maguga is a "clay-core rockfill embankment dam".[8] The dam embankment comprises approximately Script error: No such module "convert". of clay, Script error: No such module "convert". of granite rock and Script error: No such module "convert". of filter material.[9] It has an overall height of Script error: No such module "convert"., a crest length of Script error: No such module "convert". and a base width of Script error: No such module "convert"..[9] It has a capacity of Script error: No such module "convert". and a surface area of Script error: No such module "convert"..[5] It has been designed to withstand a probable maximum flood of Script error: No such module "convert"..[8] There is a Script error: No such module "convert".-long labyrinth spillway.[8]
Water levels and displacement
Droughts have caused major problems. In 2007, the dam's capacity was down to 37%.[10] In 2015, the water levels at the dam were at a record low,[9] and on 20 February 2016, the water storage level was measured at 31%.[11]
The project displaced about 1000 people.[6]
Awards
The Maguga Dam Joint Venture received a commendation from the South African Association of Consulting Engineers in the category of Engineering Excellence with a value greater than R5 million for 2002.[12] The dam also won the Concrete Society of Southern Africa's 2003 Fulton Award for Civil Engineering Structures.[13]
References
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External links
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