Tinau Hydropower Project (1 MW), Butwal
This is the first hydropower project in Nepal with underground powerhouse, which has been constructed along the Tinau River in Butwal. With primitive solutions at that time, this project is a story of success in underground tunnelling. The construction team that built this project formulated a company as Himal Hydro.
| Project | Tinau Hydropower Project (1 MW), Butwal |
| Client | Butwal Power Company, Butwal |
| Works | First underground hydropower plant in Nepal. |
| Headrace Tunnel | 2400 m x 4m2 underground desilting chamber and powerhouse. |
| Rock Condition | Poor, heavily stratified mudstone supported by stone masonry and concrete lining. |
| Period of Construction | In Stages 1968 - 1978 |
Tinau Hydropower Project (1 MW), Butwal - Repair
| Project | Tinau Hydropower Project (1 MW), Butwal - Repair |
| Client | Nepal Electricity Authority |
| Works | A huge flood in Tinau river (1981) destroyed parts of the intake, 2 suspension bridges & powerhouse shaft. HH repaired the plant, include some redesign of damaged parts. |
| Period of Construction | April 1982 - May 1983 |