Aswan High Dam

Aswan High Dam noun

1. a dam on the Nile forming a reservoir (Lake Nasser) extending 480 km (300 miles) from the First to the Third Cataracts: opened in 1971, it was built 6 km (4 miles) upstream from the old Aswan Dam (built in 1902 and twice raised). Height of dam: 109 m (365 ft)