4. Write notes on any two major dams of India.
Answers
Answer:
The Tehri Dam is the highest dam in India and one of the highest in the world. It is a multi-purpose rock and earth-fill embankment dam on the Bhagirathi River near Tehri 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 expected commissioning in May 2018.
Answer:
1.Hirakud dam built across the Mahanadi River in tribal state Orissa. Hirakud Dam is one of the longest dams in the world about 26 km in length. There are two observation towers on the dam one is “Gandhi Minar” and another one is “Nehru Minar”.
The Hirakud Reservoir is 25 km long used as multipurpose scheme intended for flood control, irrigation and power generation. It was one of the major multipurpose river valley project after Independence.
Height: 60.96 meters
Length: 25.8 km
Type: Composite Dam
Reservoir Capacity: 4,779,965 acre·ft
River: Mahanadi River
Location: Odisha
Installed capacity: 307.5 MW
2.
Height: 124 meters
Length:1,450 meters
Type: Masonry Dam
Reservoir Capacity: 9,371,845 acre·ft
River: Krishna River
Location: Telangana/Andhra Pradesh
Installed capacity: 816 MW
Nagarjuna Sagar Dam is the world’s largest masonry dam with a height of 124 meters, built across Krishna River in Telangana. Nagarjuna Sagar Dam is certainly the pride of India-considered one of the largest man-made lake in the world.
hope it helps