Koka Reservoir
| Koka Reservoir | |
|---|---|
  Koka Reservoir | |
| Location | South central Ethiopia |
| Coordinates | 8°26′N 39°02′E / 8.433°N 39.033°ECoordinates: 8°26′N 39°02′E / 8.433°N 39.033°E |
| Type | Reservoir |
| Basin countries | Ethiopia |
| Surface area | 180 km2 (69 sq mi) |
| Surface elevation | 1,595 m (5,233 ft) |
The Koka Reservoir (Oromo: Haroo Qooqaa) is a 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.
Geography[]
Located in the East(Baha) 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] Both the reservoir and the dam are threatened by increasing sedimentation caused by environmental degradation as well as the invasive water hyacinth.
Architecture[]
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 . The subcontractor who provided the equipment was , and subcontractor for mounting the equipment and the erection of the transmission lines was . Construction started in December 1957 and was formally dedicated on 4 May 1960; the budget was Eth$ 30,641,000.[2] The power plant began full operation on 28 August 1960.[3] Addis Ababa is the primary benefactor.[clarification needed] The total potential electric output is 110 GWh/year.[4]
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" Archived 2011-05-28 at the Wayback Machine (pdf) The Nordic Africa Institute website (accessed 12 June 2008)
- ^ 50th Anniversary: http://www.addisfortune.com/Vol%2010%20No%20540%20Archive/newsinbrief.htm
- ^ Water Analysis for Ethiopia, THE WATER OF THE AWASH RIVER BASIN A FUTURE CHALLENGE TO ETHIOPIA http://www.iwmi.cgiar.org/assessment/files/pdf/publications/WorkingPapers/WaterofAwasBasin.pdf
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- Awash River
- Oromia Region
- Reservoirs in Ethiopia
- Dams in Ethiopia
- 1960 establishments in Africa
- Important Bird Areas of Ethiopia
- Oromia geography stubs