The project consist of preparation of Tender Documents & Detailed Engineering Design of Upper Myagdi Hydropower Project (37 MW).
The proposed Upper Myagdi Hydropower Project will utilize the flow available in Myagdi Khola, the tributaries of Kaligandaki in the Narayani Basin. As per the updated study, the design discharge of the project is 14.42 m3/s at probability exceedance of 40% with a gross head of 318.50 m. The diversion weirs with has been proposed just downstream of the confluence of Myagi and Sinkosh Khola. The headworks consist of 27m long broad crested concrete weir with its crest at 1713.00 masl, 4 nos. of intakes, gravel trap and 2.7m dia headrace/approach pipe in its right bank. After 350m headrace/approach pipe, crossing is proposed to pass to flow to underground desanding basin at left bank of Myagdi River. The flow then passes through 3.8 m x 3.8 m tunnel of about 4.2 km long tunnel upto underground surge tank of dia 8.0m with 42 m height. Then after, the flow passes through 140m high, 2.0 m dia steel lined vertical shaft followed by 900 m long steel penstock pipe with dia 2.0m with varying thickness of 18mm to 35mm upto bifurcation point, which conveys the flow to the powerhouse located on a flood plain at the left bank of Myagdi Khola. The powerhouse consists of 3 units of vertical axis Pelton turbines to generate 37.0 MW power. As per connection agreement, the generated energy is proposed to evacuate at proposed Dana Substation via 43 km long 132 kV single circuit Transmission Line. Alternatively, the power can be evacuated to NEA Dandakhet substation whihc is under construction and is only 10 km from the proposed PH of the project.