Ruzizi River
River in Central Africa / From Wikipedia, the free encyclopedia
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The Ruzizi (also sometimes spelled Rusizi, French: Rivière Ruzizi) is a river, 117 kilometres (73 mi) long,[3] that flows from Lake Kivu to Lake Tanganyika in Central Africa, descending from about 1,500 metres (4,900 ft) to about 770 metres (2,530 ft) above sea level over its length.[2][5] The steepest gradients occur over the first 40 kilometres (25 mi), where hydroelectric dams have been built.[4] Further downstream, the Ruzizi Plain, the floor of the Western Rift Valley, has gentle hills,[6] and the river flows into Lake Tanganyika through a delta, with one or two small channels splitting off from the main channel.[5]
Ruzizi River | |
---|---|
Location | |
Countries | DR Congo (DRC) Rwanda Burundi |
Physical characteristics | |
Source | Lake Kivu |
• location | border between Bukavu and Cyangugu, South Kivu, DRC |
• coordinates | 02°29′27″S 28°53′35″E[1] |
• elevation | 1,472 m (4,829 ft)[2] |
Mouth | Lake Tanganyika |
• location | west of Bujumbura, Burundi, Bujumbura Rural Province |
• coordinates | 03°21′51″S 29°16′04″E[1] |
• elevation | 768 m (2,520 ft)[2] |
Length | 117 km (73 mi)[3] |
Discharge | |
• average | 100 m3/s (3,500 cu ft/s)[4] |
The Ruzizi is a young river, formed about 10,000 years ago when volcanism associated with continental rifting created the Virunga Mountains. The mountains blocked Lake Kivu's former outlet to the drainage basin of the Nile and instead forced the lake overflow south down the Ruzizi and the drainage basin of the Congo.