Breakthrough of Headrace Tunnel of Mistri Khola Hydroelectric Project (42 MW) happened on Saturday, 11th May 2019 in the presence of representative of Robust Energy Limited (Employer), Hydro-Consult Engineering Ltd. (Engineer) and High Himalaya Hydro Construction Pvt. Ltd. (Contractor). The total length of the 4m (w) x 4.2m (h) Headrace Tunnel is 2270.42m. Its cross sectional area is 15.083 Sqm.
In addition to Headrace Tunnel, High Himalaya Hydro Construction Pvt. Ltd. completed Construction of Adits, Surge Shaft, two numbers Underground desanding Baisns (100m x 8.5m x 12.75m) etc Sizes range from 2m x2m to 8.5mx10m with Cross sectional area 3.571 sqm to 81.23 sqm, Total Length 998.32.