Tehri Dam

Tehri Dam, located in Uttarakhand, India, is a marvel of engineering and a significant source of hydroelectric power. This rock and earth-fill embankment dam stands 260.5 meters tall and 575 meters long, with a crest width of 20 meters and a base width of 1,128 meters. The dam creates a massive reservoir with a capacity of 3.54 cubic kilometers and a surface area of 52 square kilometers.

Key Features:
* Height: 260.5 meters (855 feet)
* Length: 575 meters (1,886 feet)
* Installed Capacity: 1,000 MW (with an additional 1,000 MW pumped storage hydroelectricity)
* Reservoir Capacity: 3.54 cubic kilometers
* Surface Area: 52 square kilometers

Purpose and Benefits:
* Hydroelectric power generation
* Irrigation for 270,000 hectares of land
* Flood control
* Drinking water supply for millions of people in Delhi, Uttar Pradesh, and Uttarakhand

Environmental and Social Impact:
* Displacement of over 100,000 people
* Submergence of 24 villages and 88 others affected
* Concerns about geological stability and seismic risks
* Impact on the sacred Bhagirathi River and Hindu beliefs