Iranian President Mahmoud Ahmadinejad (above) inaugurates the Karun-4 hydroelectric dam on the Karun River in southwestern Iran. The dam, a concrete double arch structure, is the country’s largest concrete dam, 230 meters high, with a reservoir of 29 square kilometers (11 square miles). The dam will generate 1,000 MW of electricity. It was designed and constructed by Iranian engineers.
Photos: Karun-4 Dam Inauguration (6 July 2011), by Amir Kholoosi / ISNA