Hirakud Dam:
Hirakud Dam is built across the Mahanadi River, about 15 km from Sambalpur in the state of Orissa in India. Built in 1956, the dam is the world's largest earthen dam.Behind the dam extends a lake, 55 km long. Hirakud Dam is one of the longest dams in the world, about 16 26 km in length.The main dam has an overall length of 4.8 km spanning between two hills; the Lamdungri on the left and the Chandili Dunguri on the right. The dam is flanked by 21 km earthen dykes on both the left and right sides, closing the low saddles beyond the adjoining hills. The dam and dykes together measure 25.8 km. It also forms the biggest artificial lake in Asia, with a reservoir holding 743 km² at full capacity, with a shoreline of over 640 km. It was the first major multipurpose river valley project started after India's independence.
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