The Tsiazompaniry Dam is a

buttress dam A buttress dam or hollow dam is a dam with a solid, water-tight upstream side that is supported at intervals on the downstream side by a series of buttresses A buttress is an architectural structure built against or projecting from a wall whic ...

on the Varahina-South River, a tributary of the

Ikopa River The Ikopa River is the second longest waterway in Madagascar and passes through the capital, Antananarivo. It is the largest tributary of the Betsiboka River Betsiboka River is a long river in central-north Madagascar. It flows northwestward and ...

, near Tsiazompaniry in the

Analamanga Region Analamanga is a region in central Madagascar, containing the capital Antananarivo and its surrounding metropolitan area. The region has an area of , and had a population of 3,618,128 in 2018. Administrative divisions Analamanga Region is divided in ...

Madagascar Madagascar (; mg, Madagasikara, ), officially the Republic of Madagascar ( mg, Repoblikan'i Madagasikara, links=no, ; french: République de Madagascar), is an island country in the Indian Ocean, approximately off the coast of East Africa ...

. The dam was constructed by a French firm in 1956. It creates

Lake Tsiazompaniry A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much lar ...

, the largest

reservoir A reservoir (; from French ''réservoir'' ) is an enlarged lake behind a dam. Such a dam may be either artificial, built to store fresh water or it may be a natural formation. Reservoirs can be created in a number of ways, including control ...

in the country, which has a surface area of and a storage volume of . A second buttress dam, 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. Efforts to install a 5.25 MW power station at the base of the dam began in 2011.

References

{{commonscat Dams in Madagascar Analamanga Buttress dams Dams completed in 1956

See also

References