What is the total length of the Mahanadi river?

The correct answer is 851 km.

Key Points

• The Mahanadi River has a total length of 851 km, making it one of the major rivers in central and eastern India.
• It originates from Sihawa in Chhattisgarh and flows through Odisha before emptying into the Bay of Bengal.
• The river is known for its vast delta and extensive irrigation network, playing a vital role in agriculture and water resources in the region.
• It is an important source of water for Hirakud Dam, which is one of the largest dams in India and provides irrigation, flood control, and hydroelectric power.
• The Mahanadi drainage basin spreads across several states, including Chhattisgarh, Odisha, Jharkhand, and Maharashtra.

Additional Information

• Hirakud Dam
  • Located on the Mahanadi River, it is the longest earthen dam in India.
  • It was constructed in 1957 and plays a key role in flood control, irrigation, and hydroelectric power generation.
  • The reservoir created by the dam spans an area of approximately 743 sq. km.
• Mahanadi Basin
  • The Mahanadi Basin covers an area of approximately 141,600 sq. km.
  • It includes tributaries such as the Seonath, Mand, Ib, and Hasdeo rivers.
  • The basin supports agriculture and industries in Chhattisgarh and Odisha.
• Delta Formation
  • The Mahanadi forms a wide delta at its mouth near Cuttack in Odisha.
  • The delta is fertile and heavily cultivated, supporting rice farming and other crops.
  • It houses several cities and towns, including Paradip Port, which is a key trading hub.
• Environmental Significance
  • The Mahanadi River is home to rich biodiversity, including several freshwater fish and aquatic species.
  • Efforts are being made to address pollution and over-extraction of water from the river.
  • Conservation initiatives focus on maintaining the ecological balance of the river and its surroundings.