Dam din Kalkfontein

Madatsar ruwan Kalkfontein madatsar ruwa ce irin ta duwatsu da ke kan Kogin Riet, kusa da Koffiefontein, Free State, Afirka ta Kudu . An kafa ta a shekarar 1938 kuma an gyara ta a shekarar 1977. Babban manufar madatsar ruwan ita ce yin amfani da ruwa don ban ruwa kuma an sanya ta a matsayi mafi girma (3). Madatsar ruwan Kalkfontein galibi tana da ƙasa sosai (10-20% cike) saboda yankin da ke sama yana da zafi da bushewa kuma ƙanƙanta ne don cike madatsar ruwa mai wannan girman, duk da haka, yayin ambaliyar ruwa a Kogin Orange, ana canja wurin ruwa daga Kogin Orange a Vanderkloof zuwa Madatsar ruwan Kalkfontein. A shekarar 2021, wannan ya haifar da ƙaruwar madatsar ruwan daga 17.3% zuwa 61.7% a cikin mako guda. Duba kuma Jerin madatsun ruwa da madatsun ruwa a Afirka ta Kudu Jerin koguna na Afirka ta Kudu Manazarta