Nagarjuna Sagar Dam
| Nagarjuna Sagar Dam | |
|---|---|
Nagarjuna Sagar Dam | |
| Location | Nalgonda district, Telangana & Palnadu district, Andhra Pradesh |
| Coordinates | 16°34′32″N 79°18′42″E / 16.57556°N 79.31167°E |
| Purpose | Hydroelectric & Irrigation |
| Construction began | 10 December 1955 |
| Opening date | 1967 |
| Construction cost | 132.32 crore rupees |
| Dam and spillways | |
| Impounds | Krishna River |
| Height | 124 metres (407 ft) from the deepest river bed level |
| Length | 1,550 metres (5,085 ft) |
| Reservoir | |
| Creates | Nagarjuna Sagar Reservoir |
| Total capacity | 11.56 km3 (9×106 acre⋅ft) (405 Tmcft) |
| Active capacity | 6.92 cubic kilometres (1.66 cu mi) (244.41 Tmcft) |
| Catchment area | 215,000 square kilometres (83,000 sq mi) |
| Surface area | 285 km2 (110 sq mi) |
| Power Station | |
| Operator(s) | Andhra Pradesh Power Generation Corporation Telangana State Power Generation Corporation Limited |
| Commission date | 1978–1985 |
| Turbines | 1 x 110 MW Francis turbine, 7 x 100.8 MW reversible Francis turbines |
| Installed capacity | 816 MW (1,094,000 hp) |
Nagarjuna Sagar Dam is a masonry dam across the Krishna River at Nagarjuna Sagar which straddles the border between Nalgonda district in Telangana and Palnadu district in Andhra Pradesh. The dam provides irrigation water to the districts of Krishna, Guntur, Palnadu, Prakasam and parts of West Godavari districts of Andhra Pradesh and also Nalgonda, Suryapet, Khammam, Bhadradri Kothagudem districts of Telangana. It is also a source of electricity generation for the national grid.
Constructed between 1955 and 1967, the dam created a water reservoir with gross storage capacity of 11.472 billion cubic metres (405.1×109 cu ft), its effective capacity is 6.92 cubic km or 244.41 Tmcft. The dam is 124 metres (407 ft) tall from its deepest foundation and 1.6 kilometres (5,200 ft) long with 26 flood gates which are 13 metres (42 ft) wide and 14 metres (45 ft) tall. It is jointly operated by Andhra Pradesh and Telangana.
Nagarjuna Sagar Dam was the earliest in a series of large infrastructure projects termed as "modern temples" initiated for achieving the Green Revolution in India. It is also one of the earliest multi-purpose irrigation and hydroelectric projects in India.