Tehri Dam | |
---|---|
Country | India |
Location | New Tehri, Tehri Garhwal district, Uttarakhand, India |
Coordinates | 30°22′40″N 78°28′50″E / 30.37778°N 78.48056°E |
Status | Operational |
Construction began | 1978 |
Opening date | 2006 |
Construction cost | US $2.5 billion |
Owner(s) | THDC INDIA LIMITED |
Dam and spillways | |
Type of dam | Embankment, earth and rock-fill |
Impounds | Bhagirathi River |
Height | 260.5 m (855 ft) |
Length | 575 m (1,886 ft) |
Width (crest) | 20 m (66 ft) |
Width (base) | 1,128 m (3,701 ft) |
Spillways | 2 |
Spillway type | Gate controlled |
Spillway capacity | 15,540 m3/s (549,000 cu ft/s) |
Reservoir | |
Total capacity | 3.54 km3 (2,870,000 acre⋅ft) (125.03 tmc ft) |
Surface area | 52 km2 (20 sq mi) |
Power Station | |
Commission date | 2006 |
Type | P no |
Turbines | Francis pump turbines |
Installed capacity | 1,000 MW (1,300,000 hp) Max. planned: 2,400 MW |
With a height of 260.5 m (855 ft) Tehri Dam is the tallest dam in India[1] and 13th tallest dam in the world. It is a multi-purpose rock and earth-fill embankment dam on the Bhagirathi River in New Tehri, Tehri Garhwal district in Uttarakhand, India. It is the primary dam of the THDC India Ltd. and the Tehri hydroelectric complex. Phase 1 was completed in 2006. The Tehri Dam withholds a reservoir for irrigation, municipal water supply and the generation of 1,000 megawatts (1,300,000 hp) of hydroelectricity. The dam's 1,000 MW variable-speed pumped-storage scheme is currently under construction with the expected commissioning of first two units in 2023.[2]
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