Tehri Dam | |
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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 | 42 km2 (16 sq mi) |
Power Station | |
Commission date | 2006 |
Type | P no |
Turbines | Francis pump turbines |
Installed capacity | 1,000 MW (1,300,000 hp) Planned: 2,400 MW |
Website www |
The Tehri Dam is a multi-purpose rock and earth-fill embankment dam on the Bhagirathi River in New Tehri, Tehri Garhwal district in Uttarakhand, India.[1] With a height of 260.5 m (855 ft), it is the tallest dam in India and the 13th-tallest dam in the world. It is the primary dam of THDC India Ltd. and the Tehri hydroelectric complex. The dam begun construction in 1978 and was completed in 2006. It 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 commissioning of the first two units was expected to be completed in 2023, which got finished in March 2024, and the rest to be done by 2025.[2][3]