Answer:
Hirakud dam is built across the river Mahanadi.
Hirakud dam
In the Indian state of Orissa, the Hirakud Dam is located. With a total length of 25.79 kilometres, it is India’s longest dam. It’s also in the list of the world’s longest dams. On the Mahanadi River, the Hirakud Dam is situated.
- Height of the Dam – 61 m
- Length of the Dam – 4.8 km
- Type of Dam – Composite Dam
- The reservoir capacity – 47,79,965 acre feet
- Capacity that is installed – 347.5 Megawatt
