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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]
It is not known exactly to what extent dams in Ethiopia would reduce the flow of water to Sudan and Ethiopia. Assuming an evaporation rate of 1 meter per year, an irrigated area of 200,000 hectares and a combined reservoir area of 1,000 km2, the flow of the Nile could be reduced by 3 billion cubic meters per year, equivalent to about 5 percent ...
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.
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.
Tendaho Dam is an earth-filled dam in the eastern Afar Region of Ethiopia. It is situated on the Awash River, and its reservoir also receives the output of the Mille River. The dam is a project of the Ethiopian Water Works Construction Enterprise (EWWCE). Project planning began in 2005, with construction occurring from 2010 to 2014.
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 ...
The Alwero Dam, also known as the Abobo Dam, is a reservoir and irrigation system in the Abobo district of Gambela Region, in western Ethiopia.It was built in 1985 with Soviet Union aid, as part of a strategy by the Derg regime led by former Ethiopian President Mengistu Haile Mariam to increase resource spending on irrigation following the 1983–1985 famine in Ethiopia. [1]
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 ...