Koka Reservoir
| Koka Reservoir | |
|---|---|
| Location | South-Central Ethiopia |
| Coordinates | 8°26′N 39°02′E / 8.433°N 39.033°E |
| Type | reservoir |
| Basin countries | Ethiopia |
| Surface area | 180 km |
| Surface elevation | 1595 meters |
The Koka Reservoir (also known as Lake Gelila) is an artificial lake (or reservoir) in south-central Ethiopia. It was created by the construction of the Koka Dam across the Awash River. The reservoir has an area of 180 square kilometers.
Located in the Misraq Shewa Zone of the Oromia Region, close to the capital and largest city of Ethiopia, Addis Ababa, the Koka Reservoir is popular with tourists and city-dwellers. There is a variety of wildlife and birds around the lake. The reservoir supports a fishing industry; according to the Ethiopian Department of Fisheries and Aquaculture, 625 tonnes of fish are landed each year, which the department estimates is either 52% or 89% of its sustainable amount.[1]
The Koka dam consists of concrete with a length of 458 meters and a maximum height of 47 meters. The head utilized is 32-42 meters. The transmission lines have voltage 132 kV. The primary contractor was Imprese Italiane all'Estero. The subcontractor who provided the equipment was Gruppo Industriale Elettro Meccaniche per Impiante all'Estero, and subcontractor for mounting the equipment and the erection of the transmission lines was Società Anonima Elettrificazione. Construction started in December 1957 and formally dedicated 3 May 1960; the budget was Eth$ 30,641,000.[2]
Both the reservoir and the dam are threatened by increasing sedimentation caused by environmental degradation.
Notes
- ^ "Information on Fisheries Management in the Federal Democratic Republic of Ethiopia" (report dated January, 2003) Table 1 has the lower estimate for the maximum sustainable amount; Table 4 the higher estimate.
- ^ "Local History in Ethiopia" (pdf) The Nordic Africa Institute website (accessed 12 June 2008)
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