The Mangla Dam is the twelfth largest dam in the world. It was constructed in 1967 across the Jhelum River, about 67 miles (100 km) south-east of the Pakistani capital, Islamabad in Mirpur District of Azad Kashmir, Pakistan. The main structures of the dam include 4 embankment dams, 2 spillways, 5 power-cum-irrigation tunnels and a 1,000 MW power station.