Kama Diversion Dam & Hydropower Plant Project
Project Purpose / Layout
The purpose of the dam is to irrigate 12500 hectares of farmland (irrigation improvement: 7500 ha & development: 5000 ha) in plains of Kama, Gerdab and Goshta and to generate electricity.
Geographic Location
The dam site is situated between 34o,20' - 34o,30' N latitude and 70o,30' - 70o,50' E longitude in Kama and Goshta, Nangarhar province, Afghanistan. The project area is surrounded by Pakistan border in north and east, the Kabul River in south and the Kunar River in west.
Project History
The feasibility study on irrigation of Kama plain and generation of electricity was carried out by Sanyu Consultants Inc. in 1973. Electrowatt Engineering Company conducted the rest of the feasibility study and provided the proposed plan in 1975.
Technical Specifications of Project
|
Dam |
|
|
Dam type |
Diversion dam |
|
Dam height above foundation (m) |
7.5 |
|
Spillway length (m) |
380 |
|
Dam crest width (m) |
- |
|
Total concrete (m3) |
200 x 103 |
|
Total reservoir volume (m3) |
- |
|
Active reservoir volume (m3) |
- |
|
Mean annual inflow (m3/s) |
- |
|
Spillway |
|
|
Type of spillway |
Ogee |
|
Flood discharge capacity (m3/s) |
136.5 |
|
Powerhouse |
|
|
Powerhouse type |
Surface powerhouse |
|
Number of units |
3 |
|
Design head (m) |
41.5 |
|
Installation capacity (MW) |
41.4 |
|
Turbine |
Vertical, Francis |
|
Generator |
Vertical, synchronous |
|
Mean annual generation (GWH) |
297 |
|
Diversion System |
|
|
Type of diversion system |
- |
|
Number of diversion tunnel |
- |
|
Length of diversion tunnel (m) |
- |
|
Diameter of diversion tunnel (m) |
- |
|
Discharge capacity of diversion system (m3/s) |
- |
|
Power Tunnel |
|
|
Length of power tunnels (m) |
- |
|
Diameter of power tunnel (m) |
- |
|
Water Conveyance Tunnel |
|
|
Total length of water conveyance system (m) |
16730 |
|
Number of water conveyance system |
1 |
|
Length of water conveyance tunnels (m) |
1115, 270, 335 |
|
Diameter of water conveyance tunnels (m) |
3.6, 8, 7.8 |
|
Bottom Outlet |
|
|
Discharge capacity of bottom outlet (m3/s) |
- |
|
Intakes |
|
|
Discharge capacity of irrigation intake (m3/s) |
- |
|
Discharge capaci
| |