Thursday, January 27, 2011

Terbela Dam largest dam of world ... In Pakistan

Tarbela Dam is a large dam on the Indus River in Pakistan. It is located in Haripur district of Hazara Division of North-West Frontier Province about 50 km northwest of Islamabad. Reservoir size of some (250 km2) makes it the largest earth filled dam in the world. The dam was completed in 1974 and was designed to store water from the Indus River for irrigation and flood control, and for the generation of hydro-electric power. On May 14, 1968, Tarbela dam was World’s largest single contract for the construction of civil works at that time, the Tarbela Dam Project was signed at a price of $ 623 Million between the Water and Power Development Authority of Pakistan and the Tarbela Dam Joint Venture which comprised a group of three Italian and three French heavy construction contractors.
Power generation:
Total generating capacity of Tarbela Power Station is 3478 MW. However, there are further plans to increase the power generation by 800 MW to bring the total Power Generation Capacity to more than 4200 MW.
Life Span:
The useful life of the dam and reservoir was estimated to be somewhere around fifty years, since the dam's completion in 1976, meaning that the reservoir would have been full of sediment by 2030.Sedimentation, however, has been much lower than predicted, and it is now estimated that the useful lifespan of the dam will be 85 years, to about 2060.

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