Coordinates: 26.9278° S, 28.3866° E
The Vaal Dam in South Africa was constructed in 1938 and lies 77 km south of OR Tambo International Airport. The lake behind the dam wall has a surface area of about 320 square kilometres and is 47 meters deep. The Vaal Dam lies on the Vaal River, which is one of South Africa’s strongest-flowing rivers. Other rivers flowing into the dam are the Wilge River, Klip River, Molspruit and Grootspruit. It has over 800 kilometres of shoreline and is South Africa’s second biggest dam by area and the fourth largest by volume.