Salal Dam

Salal Hydroelectric Project Stage-I of 345 MW (115X3) and Stage-II of 345 MW (115X3) are constructed on river Chenab in the state of J&K. The project was conceived in the year 1920. The investigations on the project were started in the year 1961 by the Govt. of J&K and construction was started in 1970 by Central Hydroelectric Project Control Board under Ministry of Irrigation and Power, Govt. of India. In 1978 construction of the projects was entrusted to NHPC on agency basis. After completion of project, it was handed over to NHPC on ownership basis for operation and Maintenance.Stage-I of the project was commissioned in 1987. First unit of Stage-II of the project was commissioned in 1993, second in 1994 and third in 1995. At the peak of construction, about 12,000 persons including contractors worked around the clock to complete the project from 1970s to till date under proper guidance and maintaince of India most successful company NHPC (NATIONAL HYDROELECTRIC POWER CORPORATION). The project was taken by HCC and various contractors. Various contractors spend there life in the construction of salal project (Jyotipuram).Among them the famous names are MR SURINDER GANDOTRA (basically from Jammu who stayed there for about 20 years and completed projects worth in crores given by NHPC till 1993 and later shift to construction of colonies and other work for SEWA HYDEL PROJECT at Bani in district Kathua). Other contractors have also contributed a lot to salal project.

Construction of the project was entrusted to the National Hydroelectric Power Corporation (NHPC) and handed over to them on ownership basis for operation and maintenance. Power from the project flows to the Northern Grid from where it is distributed to the states of Jammu and Kashmir, Punjab, Haryana, Delhi, Himachal Pradesh, Rajasthan, and Uttar Pradesh, and the union territory of Chandigarh.

Salient features

• Location Distt. [Reasi], J & K
• Approach Nearest Rail Head - [Katra]
• Capacity 690 MW
• Annual Generation 3101 million units
• Project Cost Rs. 9288.9 million
• Baneficiary States U.P, J&K, Punjab, Haryana, Delhi, H.P. Chandigarh & Rajasthan
• Tariff rate 41.56 Paise / Unit
• Year of Commissioning/Completion Schedule Stage-I 1987 Stage-II 1st unit-1993 2nd unit-1994 3rd unit-1995. Finally Commissioned in 1996

Technical features

• 118 m high, 630m long rockfill dam.
• 113 m high, 450 m long concrete dam
• 11 m dia, 2.46 km long tail race tunnel.
• 6 nos. Penstocks 5.23 m dia, 279 m long each.
• Sub-surface power house containing 6 units of 115 MW each.

Location of Project

• Site : Dhyangarh
• Tehsil : Reasi
• District : Reasi
• State : Jammu & Kashmir

Concrete Dam

• Max height : 113 m
• Length of top : 450 m
• Full Reservoir level : 487.68 m
• Maximum water level : 494.08 m
• Length of spillway : 220 m
• Length of power dam : 105 m
• Length of non overflow dam : 125 m
• Spillway design discharge : 22,500 m³/s
• No of spillway bays : 12
• Type of gate : Radial
• Top elevation : 495.91 m
• Deepest foundation level : 383 m
• No of river sluices : 6 of 3.35 m x 4.57 m

Power House

• Generating units : 6
• Rated capacity of each unit : 115 MW

Tailrace Tunnel

• Number : Two
• Length Stage I : 2.463 km
• Stage II : 2.523 km
• Shape : Horseshoe
• Diameter : 11 m (finished)
• Design discharge : 412 m³/s
• Velocity : 4.2 m/s

Transmission Lines

• Name of Grid : Northern grid
• Transmission Voltage : 220 kV
• Total length of lines : 446 km
• Double circuit Salal- Kishenpur : 2 lines
• Single circuit Salal-Jammu : 2 lines

See also

• List of dams and reservoirs in India

References

1.0 http://www.ingentaconnect.com/content/iabse/sei/1991/00000001/00000003/art00005

2.0 http://www.nhpcindia.com/

3.0 http://www.nhpcindia.com/Projects/English/Scripts/Prj_Introduction.aspx?vid=62