- Task: Progress monitoring and verification of construction work
- Capacity: 10 MW
- Status: Completed
Salient features as per Project Description Report
1. GENERAL
| a. Project Location : | Deopur,Bajung,Tilahar and Chuwa VDC, Parbat District |
| b. Development region : | Western Development Region |
| d. Nearest highway : | Pokhara- Baglung Highway |
2. LOCATION (THE BOUNDARY POINTS OF THE PROJECT AREA):
| Point | Longitude | Latitude |
| 1 | 830 42’ 30” E | 280 14’ 08” N |
| 2 | 830 42’ 30” E | 280 16’ 18” N |
| 3 | 830 44’ 43” E | 280 14’ 08” N |
| 4 | 830 44’ 43” E | 280 16’ 18” N |
3. HYDROLOGY
| a. Catchment Area | 560 km2 |
| b. Design discharge | 27.5 m3/s (from the provided study report) |
| c. 100 years flow | 1070 m3/s (from the provided study report) |
| d. Downstream release
e. Modi Khola 40% Exceedence flow 90% Exceedence flow |
10% of least mean monthly flow
27.5 m3/s 8.5 m3/s |
4. OTHER FEATURES (from study report)
| a. Headworks | ||
| Weir | ||
| Type | Free flow Concrete | |
| Crest Elevation, m amsl
Length, m Deck level Number of gate at weir Number of gate at undersluice |
860
60 869 5 1 |
|
| Intake | ||
| Number of opening | 4 | |
| Width of opening, m | 3.0 | |
| Height of opening, m | 1.25 | |
| Gravel trap | ||
| Type
Number of bays |
Hopper
2 |
|
| L x B x H, m
Approach canal L x B x H, m |
9 x 8.75 x 4.7
114 x 4 x 3.3 |
|
| Settling Basin | ||
| Numbers
L x B x H, m Forebay Shape L x B x H, m Normal operating level, m amsl Power culvert L x B x H, m |
2
120 x 15 x 7.5 Trapezoidal 15 x 20 x 4.47 862.70 150 x 3.8 x 3.8 |
|
| b. Headrace tunnel | ||
| Shape | Inverted D-shape | |
| Length, m | 4197.6 | |
| Size, m x m (concrete lined)
Size, m x m (shotcrete lined) Invert level of tunnel intake Invert lining thickness for shotcrete lined, mm ‘Invert lining thickness for concrete lined, mm Adit 1 Shape Length, m Size, m x m Adit 2 Shape Length, m Size, m x m Adit 3 Shape Length, m Size, m x m |
3.8 x 3.8
4.5 x 4.5 852.175m amsl 200.00 300.00 Inverted D- shape 388.2 4.5 x4.5 Inverted D- shape 241.00 4.5 x4.5 Inverted D- shape 58.22 4.5 x4.5 |
|
| c. Surge tank | ||
| Diameter, m | 12.0 | |
| Height, m | 42.8 | |
| Invert level of surge tank, m amsl | 840.20 | |
| Full supply level, m amsl
Maximum upsurge, m Maximum down surge, m |
862.15
877.46 843.20 |
|
| d. Steel penstock pipe | ||
| Thickness of penstock, mm | 14 to 16 | |
| Length, m | 140.0 | |
| Average diameter, m | 3.4 | |
| e. Vertical shaft | ||
| Length, m | 63.0 | |
| Diameter, m | 3.8 | |
| f. Power house | ||
| Elevation of access floor, m amsl | 783.40 | |
| L x B, m | 30.0 x 16 | |
| g. Tailrace | ||
| Length, m | 293 | |
| L x B, m | 4.0 x 3.8 | |
| h. Turbine | ||
| Type | Francis (vertical axis) | |
| Numbers | 2 | |
| Turbine rated capacity | 10.0 MW | |
| i. Transmission line | ||
| Length, km | 4.5 km at Modi Hydropower Plant S/S | |
| Capacity, kV | 132 kV, single circuit | |
| 4. ENERGY | ||
| a. Design Discharge , m3/s | 27.5 | |
| b. Gross Head, m | 93.70 | |
| c. Installed capacity, MW | 20 | |
| d. Gross Average Annual Energy, GWh | 124.24 | |
| 5. Project development cost | NPR 3,509,281,000 after financing |
Construction Supervision and Design Support During Construction
HRE III
