What dam was opened in Rhodesia on 17th May 1960?

The Kariba Dam is a double curvature concrete arch dam in the Kariba Gorge of the Zambezi river basin between Zambia and Zimbabwe. The dam stands 128 metres (420 ft) tall and 579 metres (1,900 ft) long. The dam forms Lake Kariba which extends for 280 kilometres (170 mi) and holds 185 cubic kilometres (150,000,000 acre⋅ft) of water.

The double curvature concrete arch dam was designed by Coyne et Bellier and constructed between 1955 and 1959 by Impresit of Italy at a cost of $135,000,000 for the first stage with only the Kariba South power cavern. Final construction and the addition of the Kariba North Power cavern by Mitchell Construction was not completed until 1977 due to largely political problems for a total cost of $480,000,000. During construction, 86 men lost their lives.

The Kariba Dam project was planned by the government of the Federation of Rhodesia and Nyasaland, or Central African Federation (CAF). The CAF was a semi-independent state within the Commonwealth in southern Africa that existed from 1953 to the end of 1963, comprising the former self-governing British colonies of Northern Rhodesia and Southern Rhodesia and the former British protectorate of Nyasaland.