Nalsing Gad Storage Hydropower Project (417 MW)

Nalsing Gad Hydropower Project is a storage type scheme, located in Jajarkot District of Karnali Province in Nepal. The dam site is located in Barekot Rural Municipality and the powerhouse area is located in Tribeni Nalagad Municipality. The project has an installed capacity of 417 MW. The gross head of the project is 698.0 m while design discharge of the project is 75 cumec. This project will feature 200 m high concrete face rockfill dam (CFRD). The project is located in the rocks of Lesser Himalayan zone with major lithology of dolomite, limestone, shale and metasandstone.

Detail engineering design and environmental impact assessment study of this project is being carried out by SMEC International (Australia) and MWH Inc (USA) which is expected to be completed within 2019. This project is being developed by Nalgad Hydropower Company Limited, a government owned company under Vidyut Utpadan Company Limited (VUCL).

The powerhouse site is at Dalli which is about 30 km southeast from Khalanga, the district headquarters of Jajarkot. There is a fair-weather road from Khalanga to Rimna to Chisapani and then to Kalimati. A suspension bridge over Nalsyaugad Khola is available at Kalimati to reach Dalli. The dam site is at Sepu Khola Gau and the access road to there is under construction at present.

Involvement

I was employed in Nalsing Gad Hydropower Project Development Committee (currently Nalgad Hydropower Company Limited) for this project during May 2016 – August 2017. I was responsible for activity planning and supervision of geological and geotechnical investigation which includes test adits consisting 800 m long tunnel, 1000 m of core drilling, geophysical investigation, construction material survey and engineering geological mapping of the project components, reservoir area and transmission line alignment as a counterpart engineer.