Salient Features

Type of Development = Peaking Run-of-River (PRoR)
Location = Lamabagar VDC, Dolakha District, Janakpur Zone, Central Development Region
Headworks Location = Lamabagar, Lamabagar VDC
Powerhouse Location = Gongar Gaon, Lamabagar VDC
Maximum Output = 456 MW
Annual Energy = 2,281 GWh
Gross Head = 822 m
Design Discharge = 66.0 m 3 /sec
Hydrology    
Catchment Area = 1,745 km 2
Min. Mean Monthly Flow = 14.1 m 3/sec.
Mean Annual Flow = 67.2 m3/sec.
Design flood Q1,000 = 885.0 m3/sec
Diversion Dam = 22 m x 60.0 m (H x L)
Live Storage = 1.2 Million m3
Settling Basins = 2 Nos. L=225 m
Headrace Tunnel = 8.4 km (Cross Sectional Area = 32.14 m2)
Penstock (Vertical Shaft and Horizontal Tunnel) = 1,134.0 m
Power House (Underground) = 142.0m x 13.0m x 25.0 m 
(L x B x H)
Number of units = 6
Tailrace Tunnel = 2.9 km (Cross Sectional Area = 35.0 m2)
Access Road from Charikot of Dolakha District = 68.0 km
Transmission line = 220 kVA Double Circuit, 47.0 km (Gongar to Khimti Substation)
Construction Cost = NRs.35.29 Billion equivalent to US$ 441 Million (Excluding Interest During Construction)
Construction Time Period = 6 Years