| Salient features: as per Feasibility Study Report, 2010 |
|
|
| Location |
|
Tinekhu Khola, Suri/Jhaku VDC’s, Dolkha District, Janakpur Zone, Central development region of Nepal |
| Latitude |
|
27°44’07” N to 27°45’15” N |
| Longitude |
|
86°10’45” E to 86°12’06” E. |
| Geology |
|
|
| Region |
|
Middle Mountain Zone |
| Rock composed |
|
Quartzite, Schist, Augen Gneiss, Phyllite |
| Geotechnical zoning |
|
Fair to good |
| Hydrology |
|
|
| Catchment area |
|
21 km2 |
| 90% firm flow in the driest month |
|
250 lps |
| Design flow (Q57) |
|
350 lps |
| Flood 1 in 100 years |
|
127 m3/sec |
| Weir |
|
|
| Type |
|
Concrete and gabion |
| Length |
|
18.25m |
| Crest level |
|
1398.6 m amsl |
| Intake |
|
|
| Type |
|
Side intake |
| Number of orifice |
|
3 |
| Orifice Size |
|
0.4 x 1.00 m (w x h) |
| Sill level upper orifice |
|
1398.90 m amsl |
| Sill level bottom orifice |
|
1397.90 m amsl |
| Number of gates |
|
2 |
| Gravel trap |
|
|
| Type |
|
Surface |
| Length |
|
3.0 m (including transition) |
| Width |
|
1.5 m |
| Height |
|
2.8 m |
| Normal water level |
|
1398.30 m amsl |
| Spillway level |
|
1398.60 m amsl |
| Gravel Flushing Canal |
|
|
| Type |
|
Surface |
| Length |
|
7.40 m |
| Breadth |
|
0.5 m |
| Height |
|
0.5 m |
| Number of gates |
|
2 nos. |
| Approach canal |
|
|
| Type |
|
Reinforced concrete rectangular culvert |
| Length |
|
9.15 m |
| Bottom width |
|
0.8 m |
| Height |
|
0.8 m |
| Settling basin |
|
|
| Type |
|
Surface |
| Size |
|
23.5 x 1.5 x 3.0m (l x b x h) |
| No. of chambers |
|
2 |
| Normal water level |
|
1398.27 m amsl |
| No. of flushing channel |
|
2 |
| Sediment Flushing Channel |
|
|
| Type |
|
Surface |
| Length |
|
8.0 m |
| Breadth |
|
| Height |
|
0.5 m |
| No. of gates |
|
2 |
| Headrace pipe |
|
|
| Material |
|
High Density Polyethylene (HDPE) |
| Length |
|
2046 m |
| Internal diameter |
|
500 mm |
| Anchor blocks |
|
43 nos. |
| Forebay |
|
| Type |
|
Surface |
| Width |
|
3.5 m |
| Length |
|
4.0 m |
| Height |
|
4.0 m |
| Water level |
|
1387.34 m amsl |
| Penstock Pipe |
|
|
| Material |
|
Steel |
| Length |
|
960 m |
| Internal diameter |
|
450 mm |
| Thickness |
|
8-32 mm |
| Anchor blocks |
|
16 nos. |
| Saddle support |
|
107 nos. |
| Y-Bends |
|
1 no. |
| Branching |
|
2 pipes of 320 mm internal diameter, 20 m long |
| Powerhouse |
|
|
| Type |
|
Surface |
| Length |
|
16.5 m |
| Breadth |
|
8.0 m |
| Height |
|
12 m (from foundation level) |
| Number of generating units |
|
2 (Two) each 495 MW |
| Turbine type |
|
Horizontal Axis Pelton Turbine |
| Installed capacity |
|
990 KW |
| Turbine axis level |
|
985.61 m amsl |
| Tailrace |
|
|
| Type |
|
Rectangular box culvert |
| Length of closed duct |
|
40.8 m |
| Transmission Facilities |
|
|
| Transmission line Length |
|
3 km from Powerhouse to to Singati Sub-station |
| Voltage level |
|
11 KV |
| Power and Energy |
|
|
| Gross Head |
|
412 m |
| Net Head at design discharge |
|
388.40 m |
| Installed Capacity |
|
990 KW |
| Gross Annual Energy |
|
7.48 GWh |
| Net Annual energy |
|
7.10 GWh |
| Wet Energy |
|
5.20 GWh |
| Dry Energy |
|
1.90 GWh |
Construction Supervision and Design Support During Construction
HRE III
