Name the dam built across the river Mahanadi.
Answer:
Hirakud dam is built across the river Mahanadi.
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.