Wednesday, 26 February 2014

Tehri Dam



·         The Tehri Dam is the highest dam in India and one of the tallest in the world.
·         The Tehri Dam is located at the confluence of Bhagirathi River  and Bhilanganga near Tehri in UttarakhandIndia.  
·         THDC India Ltd. and the Tehri Hydroelectric Complex are the owners of Tehri Dam.
·          The construction of Tehri Dam was started in 1978.
·         The Tehri Dam is a type of Embankment, earth and rock-fill Dam.
·         Phase 1 of the Dam was completed in 2006 and the construction cost of the dam was US $ 1 billion.
·         The Tehri Dam withholds a basin for irrigation, municipal water supply and the generation of 1,000 MW of hydroelectricity.
·          The dam's 1,000 MW pumped-storage scheme is currently under construction.
 
Tehri Dam in 2008

Technical Description

·         The length of the Tehri Dam is 575 m (1,886 ft) and the height is 260.5 m (855 ft)

·         The width (crest) of the dam is 20m (66 ft) and width (base) is 1128m (3701 ft).

·        The spillway Capacity of the dam is 15540 m3/s (549000 cu ft/s).

 



Barriers while construction of Tehri Dam
·          Building Tehri dam across a river, floods the land that would otherwise be available for use, alters the landscape, affects the local community that would have lived and worked on the flooded land, alters the character of the river, and prevents the free movement of fish.
·         Due to construction of the dam the river is needed to be diverted. Diverting a river affects the nature of the countryside and does not lend itself to use on a large scale.
·         The surrounding ecosystems was polluted and damaged while building Tehri dam because it is a           large-scale hydro power plant.
·         A lot of environmentalist and local people have protested during the construction of Tehri dam as it was the place where they have lived and worked over the years.
 
A protest message against Tehri dam, which was steered by Sundarlal Bahuguna for years. It says "We don't want the dam. The dam is the mountain's destruction


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