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Ethiopia's rivers carry a high silt content, due to heavy erosion which is accelerated by deforestation and inappropriate agricultural practices on steep mountain slopes. The reservoir of one of Ethiopia's oldest large dams, the Awash dam commissioned in 1966, is close to reaching the end of its useful life due to siltation.
The dam is 1,700 m (5,600 ft) long and 40 m (130 ft) tall. Construction on the dam began in 1988 but work was halted in 1994. In 1995 construction restarted with a new construction firm. The power station was commissioned in 2004. [2] Water from the dam is diverted through a 9.2 km (5.7 mi) long tunnel to an underground power station downstream.
The Ethiopian Ministry of Water Resources began construction of a dam on the Germama in 2005, which would help irrigate areas along both sides of the river, and in the Dofen and Kebena Mountains. [6] The dam was completed, however, it's water controlling gates were not fully functional.
Zenawi argued, based on an unnamed study, that the dam would not reduce water availability downstream and would also regulate water for irrigation. [22] In May 2011, it was announced that Ethiopia would share blueprints for the dam with Egypt so that the downstream impact could be examined. [23]
The dam's spillway is 108 m (354 ft) long and floodgate-controlled with a maximum discharge capacity of 18,000 m 3 /s (640,000 cu ft/s). Water above 873 m (2,864 ft) above sea level can be discharged through its gates. Feeding the dam's power house are two penstocks that each branch into five separate tunnels for each individual turbine.
Addi Amharay reservoir Gibe III Dam in Southern Ethiopia. Pages in category "Reservoirs in Ethiopia" The following 41 pages are in this category, out of 41 total.
Once completed, the hydroelectric dam will be the second-largest dam in Ethiopia after the Grand Ethiopian Renaissance Dam (GERD) generate up to 6,460 Giga watt-hours (GWh) of electricity, while counterbalancing approximately one million tonnes (Mt) of CO 2 annually. [1] [6] It has 201 meters height and 1012 meters length. On 28 September 2023 ...
The dam was Ethiopia's largest public works project. [2] The dam helped to reduce power shortages as Ethiopia's power demand increases. At the time of its completion, the 188 metres (617 ft) Tekezé Dam was Africa's largest double-curvature arch dam. [3] The resulting reservoir is 105 km 2 large and it has a capacity of 9.3 billion m 3 of water ...