Location: HIMACHAL PR.

Capacity: [520 MW]

Background

The Scope of the project comprises of the following:

1).Rockfill dam, 43m high

2).25 m dia, 7.98 km long horse-shoe shaped Head Race Tunnel

3).1 m dia, 7.2 km long Tail Race Tunnel, and

4.An underground Power House with 4 nos. Francis vertical axis turbines, and generating Units of 130 MW each

The project is to provide 3-4 hours of peaking power. It will generate 1977.23 million units in a 90% dependable year.

Present Status:

All major civil works have since been awarded to the consortium of M/s. Patel and L&T, and M/s Jagar  Gammon JV. River diversion work completed in March, 2007. Construction of Coffer dam on left and right banks, exe of HRT face 1, 5, 6, STF excava of desliting chamber and Excavation of rockfill of the dam have been completed. Adit excavation in respect of surge shaft and pressure shafts is complete. HRT excavation 82.83% completed. In PH benching upto service bay level 98.25% completed and TRT excavation 92.19% completed up to June 09., D&E works for E&M and HM components in progress.

Status as on December 2009 : Construction of Coffer dam on left and right banks, exe of HRT face 1, 5, 6, STF excavation of desliting chamber and Excavation of rockfill of the dam have been completed. Adit excavation in respect of surge shaft and pressure shafts is complete. HRT excavation 96% completed. In PH benching upto pit level completed and unit handed over for E&M work . TRT excavation completed up to Mar 10, D&E works for E&M and HM components in progress.

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