Olifantsnek Dam, is a dam on the Hex River, near Rustenburg, North West

North West (South African province)

North West is a province of South Africa. Its capital is Mafikeng. The province is located to the west of the major population centre of Gauteng.-History:...

, South Africa

South Africa

The Republic of South Africa is a country in southern Africa. Located at the southern tip of Africa, it is divided into nine provinces, with of coastline on the Atlantic and Indian oceans...

. It was established in 1928. The dam has a capacity of 14200000 cubic metres (501,468,260.2 cu ft) and a surface area of 2.548 square kilometre (0.983788300093779 sq mi), the wall is 31 metres (101.7 ft), and has a length of 2640 metres (8,661.4 ft).