Indirasagar Dam

Indira Sagar Dam
Location Narmada Nagar Village, Mundi, Madhya Pradesh
Coordinates 22°17′02″N 76°28′17″E / 22.28389°N 76.47139°E / 22.28389; 76.47139Coordinates: 22°17′02″N 76°28′17″E / 22.28389°N 76.47139°E / 22.28389; 76.47139
Construction began 1983-10-23
Opening date 2005-03-31
Operator(s) NVDA
Dam and spillways
Impounds Narmada River
Height 92 m (302 ft)
Length 653 m (2,142 ft)
Reservoir
Creates Indira Sagar Reservoir
Total capacity 12,200,000,000 m3 (9,890,701 acre⋅ft)
Active capacity 9,750,000,000 m3 (7,904,454 acre⋅ft)[1]
Power Station
Turbines 8 × 125 MW It has 8 francis turbines, under the head of 92 meters. Each turbine generated 125 MW electricity. Height is 92 meters, so it uses francis turbines.
Installed capacity 1,000 MW

The Indira Sagar Dam is a multipurpose project of Madhya Pradesh on the Narmada River at Narmada Nagar, Mundi in the Khandwa district of Madhya Pradesh in India. The foundation stone of the project was laid by late Smt Indira Gandhi, former Prime Minister of India on 23 October 1983. The construction of main dam started in 1992. The downstream projects of ISP are Omkareshwar, Maheshwar, and Sardar Sarovar Project. To build it, a town of 22,000 people and 100 villages were displaced[2]

The Project envisages construction of a 92 m high and 653 m long concrete gravity dam. It provides Irrigation in 1,230 square kilometres of land with annual production of 2.7 billion units in the districts of Khandwa and Khargone in Madhya Pradesh and power generation of 1,000 MW (8x125 MW) installed capacity. The reservoir of 12,200,000,000 m3 (9,890,701 acre⋅ft) was created. In terms of storage of water, it withholds the largest reservoir in India, with capacity of 12.22 billion cu m, followed by Nagarjuna Sagar between Telangana and Andhra Pradesh. The dam, built as a joint venture between Madhya Pradesh irrigation and National Hydroelectric Power Corporation. It was commissioned on May 2005.[3]

Indira Sagar Project

Introduction

River Narmada, fifth largest river in India, with a river flow length of 1,312 km originates from Amarkantak in Anuppur district of Madhya Pradesh. Narmada flows southwestward and after passing through Madhya Pradesh, Gujarat, and a small stretch in Maharashtra, it drains into Arabian Sea near Gulf of Combat. Indira Sagar Project (ISP) situated on River Narmada, 10 32 km from Mundi in Khandwa district of Madhya Pradesh is commissioned on 31 March 2005.

Indira Sagar Project is a multipurpose Project with an installed capacity of 1,000 MW, with annual energy generation of 2,698 million units in Stage I, 1,850 million units in Stage II, and 1,515 million units in Stage III, and annual irrigation of 2.65 Lac. Ha on a Culturable Command Area (CCA) of 1.23 Lac. Ha. Total catchment area at the dam site is 61,642 km2. Indira Sagar Project is the mother project for the downstream projects on Narmada Basin with largest reservoir in India, having 12.22 Bm3 storage capacity. All the eight units commissioned by March 2005 ahead of schedule while generation from first unit was started from January 2004. The powerhouse is the second-largest surface powerhouse in India.It has really provided the villages near Narmada with river water for irrigation.

Project features

A model of the Indira Sagar Power Station at the Regional Science Centre, Bhopal

Brief details of major components of project:

  • No. of Units, their rating and capacity  : 8 Units of 125 MW each – 1000 MW
  • Concrete Gravity dam : 653 m long & 92 m high
  • Diversion Tunnel : 688 m long & 8 m high
  • Radial Gates : 20 Nos., 20 m long & 18 m high
  • Power House : Surface with Francis Turbine Size – 200 m x 23 m x 53 m
  • Intake Structure : 208 m long
  • Water Conductor System : 8 Nos. Penstocks with 8 m dia.
  • Head race Channel : 530 m long & 75 m wide.
  • Tail Race Channel : 850 m long & 30 m wide.
  • Switchyard : 400 kV, open type.

Rehabilitation and resettlement

  • Villages affected:54
  • Family affected: 39179 PAFs
  • Land Submerged: 91348 m

Indian National Human Rights commission takes complaint of Salem-News.com’s Human Rights Ambassador complain into note regarding Omkareshwar and Indira Sagar Dams. Complaints cited by their Human Rights Ambassador William Nicholas Gomes, over water levels being raised to the point that they literally drowned a local community, have been recognized by the National Human Rights Commission in India.[4][5]

See also

References

  1. ↑ "India: National Register of Large Dams 2009" (PDF). Central Water Commission. Archived from the original (PDF) on 21 July 2011. Retrieved 10 July 2011.
  2. ↑ https://www.thehindu.com/thehindu/mag/2003/11/09/stories/2003110900040400.htm
  3. ↑ NHPC Limited: Indira Sagar Power Station
  4. ↑ http://www.salem-news.com/articles/december162012/gomes-effectiveness-tk.php
  5. ↑ http://www.salem-news.com/gphotos/1355691746.jpg
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