Tsiazompaniry Dam

The Tsiazompaniry Dam is a buttress dam on the Varahina-South River, a tributary of the Ikopa River, near Tsiazompaniry in the Analamanga Region of Madagascar. The dam was constructed by a French firm in 1956. It creates Lake Tsiazompaniry, the largest reservoir in the country, which has a surface area of 31 km² (12 sq mi) and a storage volume of 260,000,000 m³ (210,000 acre⋅ft). A second buttress dam, 1 km (0.62 mi) northwest of the main dam helps withhold the reservoir. Water released from the dam supplies a regulated flow to hydroelectric power station at the Antelomita Dam downstream.^[1][2] Efforts to install a 5.25 MW power station at the base of the dam began in 2011.^[3]

Tsiazompaniry Dam
Tsiazompaniry Dam
Location of Tsiazompaniry Dam in Madagascar
Country	Madagascar
Location	Tsiazompaniry, Analamanga Region
Coordinates	19°15′16.68″S 47°50′44.56″E
Purpose	Power, water supply
Status	Operational
Opening date	1956; 69 years ago (1956)
Owner(s)	Jirama
Dam and spillways
Type of dam	Buttress
Impounds	Varahina-South River
Height	27 m (89 ft)
Reservoir
Total capacity	260,000,000 m3 (210,000 acre⋅ft)
Surface area	31 km2 (12 sq mi)

See also

• Mantasoa Dam – on the Varahina North River