Theewaterskloof Dam

Theewaterskloof Dam
View of Theewaterskloof reservoir from hills to the east
Map of the Western Cape showing the location of Theewaterskloof Dam
Map of the Western Cape showing the location of Theewaterskloof Dam
Location in the Western Cape
LocationWestern Cape, South Africa
Coordinates34°4′41″S 19°17′21″E / 34.07806°S 19.28917°E / -34.07806; 19.28917
PurposeIrrigation and domestic
Opening date1980
Owner(s)Department of Water and Sanitation
Dam and spillways
Type of damEarth fill dam
ImpoundsSonderend River
Height35 m (115 ft)
Length646 m (2,119 ft)
Reservoir
CreatesTheewaterskloof Dam Reservoir
Total capacity480,406 Ml (16,965.4×10^6 cu ft)
Catchment area500 km2 (190 sq mi)
Surface area5,059 ha (12,500 acres)

Theewaterskloof Dam is an earth-fill type dam located on the Sonderend River near Villiersdorp, Western Cape, South Africa. Administratively it is located within Theewaterskloof Local Municipality. It was established in 1978 and is the largest dam in the Western Cape Water Supply System with a capacity of 480 million cubic metres, about 41% of the water storage capacity available to Cape Town, which has a population of over 4 million people.[1] The dam mainly serves for municipal and industrial use as well as for irrigation purposes. The hazard potential of the dam has been ranked high (3).[2]

  1. ^ List of South African Dams from the Department of Water Affairs
  2. ^ Cite error: The named reference DSO was invoked but never defined (see the help page).