The Tehri Dam is the tallest dam of India. This dam is used for multipurposes. It’s an earthen dam that flows from the river Bhagirathi and is located near Garhwal district in Uttarakhand. The dam is used for irrigation and the generation of hydroelectricity. It is the fourth highest dam in the world. It’s 260.5 metre high and 592 metre in length.
The river Bhagirathi flows in the Garhwal district or Himalaya. It flows for 205 kilometres through Uttarkashi and Tehri where it reaches Devprayg and meets Alaknanda to form the holy Ganga.
The Tehri Dam is an operational dam whose construction began in the year 1978. It was opened in 2006. The owners of the dam are THDC India Limited and it cost them 2.5 billion US dollars to construct the dam.
The design of the dam was completed in 1972 under Jawaharlal Nehru’s ministry. The construction of the dam started in 1978 but got delayed due to environmental and social impacts. In 1986, the USSR gave financial support to construct the dam but it got interrupted due to political instability.
The irrigation department of Uttar Pradesh took over the construction of the dam. In 1988 the Tehri Hydro Development Corporation was formed to manage the construction of the dam. 75% of the funding was provided by the federal government and 25% by the state. The Uttar Pradesh government was responsible for the entire irrigation cost of the project.
There have been a lot of protests by environmental organisations to point out the consequences of the project. Sunderlal Bahuguna led the Anti Tehri-Dam movement from 1980s to 2004. He protested to point out the environmental consequences of the project and the displacement of the inhabitants of the town due to the construction of the dam.
The state of Uttarakhand is known for its self-reliance when it comes to power generation and generation of hydroelectricity. Water flowing from glaciers and rains is collected in the dams. The dams in Uttarakhand become large water storage tanks which are later used for the generation of electricity. The Tehri Dam is the most famous dam of Uttarakhand. It is the highest dam of India and the tallest dam of the world. The state of Uttarakhand has many other small and large dams built all around the cities.