"Buttress"@en . "Tsiazompaniry Dam"@en . "1956Z"^^ . "27.0"^^ . . "O" . "Power, water supply" . "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\u00B7ft). A second buttress dam, 1 km (0.62 mi) northwest of the main dam helps withhold the reservoir."@en . . . . . . .