In 1959 the large double arch concrete Kariba Dam was completed, completely filling the gorge and creating the largest man-made lake in the world.
The Kariba Gorge was assessed as more stable hydrologically and the misgivings of depending politically on a minority white government were overcome.
[2] Further, environmental assessment was a rudimentary science at the time, and the relocation of the people on the Zimbabwe side of the gorge was not adequately planned and thousands were flooded out.
[3] A distinct cultural gap arose between the isolated Zimbabwe Tonga and the Zambia Tonga because of their separation by the massive lake filling the gorge.
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