The Dez Dam, formerly known as Mohammad Reza Shah Pahlavi Dam before the 1979 Revolution, is an arch dam on the Dez River in the southwestern province of Khuzestan, Iran. It is about 23 km (14 mi) northeast of Andimeshk. It was built between 1959 and 1963 by contacting an Italian consortium and is owned by the Khuzestan Water & Power Authority. The dam is 203 meters (666 ft) high, making it one of the highest in the country, and has a reservoir capacity of 3,340,000,000 m3 (2,710,000 acre-ft). At the time of construction, the Dez Dam was Iran’s biggest development project. - Wikipedia