Frequently Asked Question
Q: On which river the dam is being constructed?
A: The dam is being constructed on the Omo River cascade.
Q: What is the maximum height of the dam above the river bed and crest elevation of the dam?
A: 243meters and 896 meters above sea level, maximum height of the dam above the river bed and crest elevation, respectively.
Q. What is the full supply level and the minimum operating level of the dam?
A: 892 and 800 meters above sea level for full supply and minimum operating level, respectively.
Q. What will be the storage capacity and live storage of the reservoir?
A. The storage capacity and live storage of the reservoir is 14,700Mm3 and 11,750 Mm3, respectively.
Q: What parties will be responsible for power generation, and who will be buying the generated power?
A: Ethiopian Electric Power Cooperation (EEPCo) is responsible for power generation. The generated power will be mainly for domestic use (at least 50 percent of the production) and export to Kenya, Sudan, and Djibouti and possibly expanding to Egypt and Yemen.
Q: Who is the consultant of Gibe III hydroelectric project?
A: The Consultants of Gibe III hydroelectric project is joint venture of Coyne et Bellier and ELC Consulting Engineers.
Q: Who is the contractor of the project?
A: The main contractor for Gibe III Project is Salini Costruttori S.p.A and various local, and foreign contractors are participating in investigation works, design, construction, supply of electromechanical and hydromechanical equipment.
Q: How many Ethiopian labourers are employed on the site?
A: The Ethiopian labourers employed to date on the site reaches 2,760 (Aug-2008) and currently 1,661 people are working on site, while it is expected to reach 5000 at its peak during RCC Dam construction (2010 -2013).
Q: How many contractor's expatriate staffs are participating?
A: The number of contractor's expatriate staff is 125.
Q: What is the total cost of the project?
A: The total cost of Gibe III Scheme is estimated at 1,55 billion Euro. This total includes the cost of construction works, equipment, engineering and administration works.
Q: When is the Gibe III Dam expected to be completed?
A: The Gibe III dam is expected to be completed on 2013.
Q: What is the cost for implementing the environmental mitigation, management and monitoring programmes?
A: The cost for implementing the environmental mitigation, management and monitoring programmes is about 445 million Birr.
Q. What is the catchment area, average annual runoff, probable maximum flood of Gibe III Hydroelectric project?
A: The catchment area, average annual runoff and Probable Maximum Flood of Gibe III dam is 34,150 Km2, 438.2 m3/ sec or 13, 820 Mm3/year and 18,660 m3/sec, respectively.
Q. What is the mean annual sediment yield?
A: The mean annual sediment yield is 18.3 Mm/year and about 70 percent of the sediment is made up of extremely fine particles (colloids, clay, fine silt) which will remain in suspension and will therefore continue to be carried to the downstream.
Q. What is the minimum ecological flow?
A: The ecological flow is 25 m3/s subject to complete stoppage of the plant.
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