Theewaterskloof Dam

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Theewaterskloof Dam
Theewaterskloof between Grabouw and Villiersdorp, South Africa.jpg
View of Theewaterskloof reservoir between Grabouw and Villiersdorp
Location Western Cape, South Africa
Coordinates 34°4′41″S 19°17′21″E / 34.07806°S 19.28917°E / -34.07806; 19.28917Coordinates: 34°4′41″S 19°17′21″E / 34.07806°S 19.28917°E / -34.07806; 19.28917
Purpose Irrigation and domestic
Opening date 1980
Owner(s) Department of Water Affairs
Dam and spillways
Type of dam Earth fill dam
Impounds Sonderend River
Height 25 m
Length 646 m
Creates Theewaterskloof Dam Reservoir
Total capacity 480 406 000 m3
Catchment area 500 km2
Surface area 5 059 ha

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 forms a major component of the Western Cape Water Supply System.[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).

It is the largest of the 6 major dams in western capes with a capacity of 480 188 million litres. 8 minor dams also contribute to dam levels supplying water to province. A dry period of rain in 2017 saw the levels drop to 12.9 %. 3 water extraction tower are in operation , one for drinking water and the other two for muncipal and irrigagtion.

Theewaterskloof Dam water extraction point.jpg

Water restrictions[edit]

A heavy rain event in june 2017 saw an increase in the catchment areas and level increased to over 15%. The last 10 % is mostly unuseable. Water restrictions by provincial government to meet a target of 600 million litres of water per day was introduced in 2016[2]. Currently, residents are restricted

to 100 litres of water per day with car washing , pool level filling and lawn watering not allowed. Media footage of the declining dam level sparked the importance of conserving water. Provincial government is considering tapping into a sensitive aquifer and investing in a desalination plant to alleviate water

supply.[3]It is expected that at least 3 years (past 2020) of winters for this dam to return to previous healthy levels.

Theewaterskloof dam.png
Theewaterskloof catchment area.png

Social events[edit]

The Theewaterskloof Dam is also the home of the annual Synergy Live music festival, one of the biggest outdoor music festivals in South Africa, which typically takes place on the last weekend of November or the first weekend of December.[4]

See also[edit]


External links[edit]