Mandraka Dam is a gravity dam on the Mandraka River near Mandraka in the Analamanga Region of Madagascar. The dam was constructed by a French firm by 1956 and creates Lake Mandraka.[1]
Mandraka Dam | |
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Location of Mandraka Dam in Madagascar | |
Country | Madagascar |
Location | Mandraka, Analamanga Region |
Coordinates | 18°55′16.79″S 47°55′46.14″E |
Purpose | Power |
Status | Operational |
Opening date | 1956 |
Owner(s) | Jirama |
Dam and spillways | |
Type of dam | Gravity |
Impounds | Mandraka River |
Height | 20 m (66 ft) |
Reservoir | |
Creates | Lake Mandraka |
Total capacity | 36×10 |
Mandraka Power Station | |
Coordinates | 18°55′35.37″S 47°56′49.51″E |
Commission date | 1958-1972 |
Hydraulic head | 226 m (741 ft) |
Turbines | 4 x 6 MW (8,000 hp) Pelton-type |
Installed capacity | 24 MW (32,000 hp) |
The dam supplies water to a 24 megawatts (32,000 hp) hydroelectric power station 1.9 km (1.2 mi) to the east, down in the valley. The change in elevation between the dam and power station affords a hydraulic head on 226 metres (741 ft).[2][3] The dam and power station are operated and owned by Jirama and the four 6 megawatts (8,000 hp) Pelton turbine-generators were commissioned between 1958 and 1972.[4]