Introduction

Upper Tamakoshi Hydroelectric Project (UTKHEP) is the largest project so far in Nepal under implementation phase. It is the national priority project and its early commissioning is very important in order to cope with the ongoing electricity crisis in Nepal. It is located in Lamabagar VDC of Dolakha District, Janakpur Zone, Central Development Region of Nepal. It is located in the lower region of the Higher Himalayas, in the catchment of the Tamakoshi River. The Tamakoshi River is one of the major tributaries of the Sunkoshi River in the Koshi River Basin. The intake for the hydropower plant is located at Lamabagar Village, which lies at direct distances of about 6 km south of the border with China (Tibet) and 32 km north to northeast of the Dolakha District centre, Charikot.