Introduction to the Project Nyadi Hydropower Project (NHP) is a run-of-river type project, located in Lamjung District of Western Development Region of Nepal. In October 2006, Butwal Power Company Limited (BPC) and LEDCO had an understanding to develop the project together. According to this understanding, a new company named as “Nyadi Hydropower Limited” was established. The project has an installed capacity of 30 MW and will generate 180.24 GWh of energy annually. Project Location The entire project area (i.e. intake to powerhouse) is located within the BahunDanda Village Development Committee (VDC) in Lamjung District, Gandaki Zone as shown in Fig. 1. The NHP is located on the right bank of Nyadi Khola which is one of the tributaries of Marsyangdi River. NEPAL Bhairahawa (Nepal) Sunauli (India) Birganj (Nepal) INDIA Raxaul (India) Figure 1. Access to Project Site from Indian International boundary Fig. 2. Project location in Lamjung Access to Project site: The nearest road head to project site from district headquarter of Lamjung; Besisahar is located at Thakenbesi 22 km gravel road of Besisahar-Chame road. Road upto district headquarter Besisahar is blacktop. Besisahar is 185 km west from the Kathmandu and reach by the prithivi highway up to Dumre and Besisahar is 45 km from Dumre. Nearest Road head from Project Site be reached in following ways from the different parts of the Country. Technical Features of the Project Nyadi Hydropower Project is a run-of-the-river type project. The proposed system of the power plant will be run for its full capacity of 30 MW for about 5 months of the year. The design discharge of the proposed plant is 11.08 m3/s and has about 40-percentile probability of Exceedence. The river gradient is quite steep and thus it will carry relatively big boulders. The proposed project layout is the best option selected amongst the various alternatives during the study. The project layout is finalized based on the findings of the site visits. The main components of the project comprises of 13 m width and 5.3 m high diversion weir with 2.5m wide under sluice, side orifice intake, gravel trap, two bays of settling basin (128 m length and 8 m width), 4 km long headrace tunnel, surge shaft, 476 m long surface steel penstock with vertical shaft, underground powerhouse with access tunnel and 356.50 m long tailrace tunnel. There will be 3 (three) Pelton turbines to generate the power. Furthermore, there are two tunnel adits near the Naiche Village and near Nana Village. These Adits act as accesses to the headrace tunnel and surge shaft respectively and are so positioned that the tunnel construction can be expedited General Project Layout .