Sehel Island Sehel Island Sehel Island is located in the Nile, about southwest of Aswan in southern Egypt. It is a large island, and is roughly halfway between the city and the upstream Aswan Low Dam. Sehel Island, spanning 3/4 the width of the Nile, is the primary large island below the Nile's First Cataract and the Aswan Low Dam (1902). Following downriver, the next major islands after Sehel are: Saluga, Ambunarti, Elephantine, and then Kitchener's Island. There are a dozen smaller islands scattered around them. The island was known in ancient tiles as "Setet", and there are many archaeological sites, including
Tsiazompaniry Dam base of the dam began in 2011. 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 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