Karun-3 Dam

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The Karun-3 dam (Persian: سد کارون 3) is a hydroelectric dam on the Karun river in the province of Khuzestan, Iran. It was built to meet Iran's energy demands as well as to provide flood control.
The Karun has the highest discharge of Iran's rivers. The dam is a concrete double arch type, 205 m high from the foundation and 185 m high from the river bed. Its foundation width is 5 m. The arch dam design is an ideal one for a dam built in a narrow, rocky gorge to hold back water in a reservoir. The dam is curved. Because of the arch shape, the force of the backed up water presses downward against the dam and has the effect of strengthening the dam foundation.
The objectives of the construction of Karun III Dam & Hydro-electric Power Plant are electric Power supply and flood control. It has the capacity to generate 2000 MW, and an average electric power generation of 4137 GWh/y.