Item Description
Hydrology Catchment Area 3,648 ㎢
Plant Discharge 201 m³/s
Normal Operation Level (NOL) EL.532m
Power Generation and Energy Gross Head 57.45 m
Installed Capacity 102 MW (34MW x 3 units)
Power Generation 465 GWh
Diversion Tunnel Type Modified horseshoe shaped
Length
5

334.0 m, 365.0 m,

Diameter
5

10.0 m, 2-lines

Cofferdam Type Concrete Gravity Dam / Earth Fill Dam
Dam Crest Level Upstream : EL. 499.0m / Downstream : EL. 481.0m
Dam Crest Width Upstream : 3.6m / Downstream : 3.0m
Height Upstream : 30.0m / Downstream : 9.7m
Inclination Upstream – 1:0.75 / Downstream – 1:1.8
Weir Design Discharge 22,191 m3/s (PMF), MWL 532.0m
Type CGD (Concrete Gravity Dam)
Weir Crest Level
  1. 533.0m
Weir Width (Net Width) 80.5 m
Length 205.0 m
Height 66.0 m
Spillway Design Discharge 13,334 m3/s (100-year frequency)
Spillway Crest EL.505.0 m
Normal Operation Level 532.0 m
Gate Size W 11.5 m X H 24.0 m X 7Nos.
Gate Type Orifice type Radial Gate
Intake Type Horizontal Bell-mouth
Intake Sill Elevation
  1. 519.0 m
Inlet Size W 10.0 m X H 8.0 m X 3 Nos.
Gate Roller gate(W 5.0 m × H 5.0 m × 3 Nos.)
Waterway

Tunnel

Type Circular Type
Diameter D 5.0 m
Length No.1 : 154.51 m(incl. 56.0m of steel penstock)

No.2 : 144.88 m(incl. 57.0m of steel penstock)

No.3 : 135.25 m (incl. 59.0m of steel penstock)

Steel Penstock Type 3-lines – Circular
Diameter
6

D 5.0 m

Length 56.0 m (No.1), 57.0 m (No.2), 59.0 m

6

(No.3)

Powerhouse Type Surface Type
Size W 33.05 m X L 80.0 m X H 60.75 m
Number of Units 3 units
Turbine Type Vertical Francis Turbine

(Rotating about Vertical Axis)

Turbine Capacity 34.0 MW
El. of Turbine-Center Line
  1. 473.0 m
Switch Yard Type GIS (exterior type)
Tailrace Type Open Channel
Size W 59.5 m X L 26.5 m
Access Road Weir W 7.0 m X L 600.0 m
Intake W 7.0 m X L 467.0 m
Powerhouse W 7.0 m X L 173.0 m
Construction Road Total W 5.5 m X L 3,784.0 m