Chatra Gorge

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Chatra Gorge
Chatra Gorge is located in Nepal
Chatra Gorge
Chatra Gorge
The Kosi cuts through Mahabharat Range, Nepal creating Chatra Gorge
Long-axis direction N-S
Long-axis length 10 kilometres (6.2 mi)
Width 5 to 8 kilometres (3.1 to 5.0 mi)
Coordinates 26°52′07″N 87°09′07″E / 26.86856°N 87.15185°E / 26.86856; 87.15185Coordinates: 26°52′07″N 87°09′07″E / 26.86856°N 87.15185°E / 26.86856; 87.15185

The Chatra Gorge is a canyon cut by the Kosi River across the Mahabharat Range in Nepal.

Kosi river system[edit]

The Kosi or Sapt Kosi drains eastern Nepal. It is known as Sapt Koshi because of the seven rivers which join together in east-central Nepal to form this river. The main rivers forming the Kosi system are – the Sun Kosi, the Indravati River, the Bhote Koshi, the Dudh Kosi, the Arun River, Barun River, and Tamur River. The combined river flows through the Chatra gorge in a southerly direction to emerge from the hills.[1][2]

The Sun Kosi contributes 44 per cent of the total water in the Sapta Koshi, the Arun 37 per cent and the Tamur 19 per cent.[3]

Out the rivers that form the Sapta Kosi, the three main tributaries, Sun Kosi, Arun and Tamur converge at Tribeni and enter Chatra Gorge.[4]

The Gorge[edit]

The Chatra Gorge is about 10 km long and is about 5–8 km wide. Downstream of the gorge, the river enters the alluvial plains forming a huge megafan covering around 16,000 km2.[4][5]

The gorge is located at 26°52′07″N 87°09′07″E / 26.86856°N 87.15185°E / 26.86856; 87.15185. The initial or northern portion of the gorge is at an altitude of 115 metres (377 ft).[6]

Sapta Kosi High Dam[edit]

A 269 metres (883 ft) high dam is proposed to be built near Barahakshetra across the Sapta Kosi in the Chatra gorge. It will have a 3,000 MW power station and a barrage 8 km downstream with canals on both sides for irrigation.[7][8][9]


  1. ^ Negi, Sharad Singh. "Himalayan rivers, lakes and glaciers". Kosi River System, p. 89. Google books. Retrieved 2012-03-01. 
  2. ^ Bahadur, Jagdish. "Himalayan snow and glaciers: associated environmental problems, progress". Kosi, p. 90. Google books. Retrieved 2012-03-01. 
  3. ^ K.L.Rao. "India's Water Wealth". p. 70. Google books. Retrieved 2012-03-01. 
  4. ^ a b Harbhajan Singh, B. Parkash and K. Gohain. "Facies analysis of the Kosi megafan deposits" (PDF). p. 88. Sedimentary Geolo~, 85 (1993) 87-113 87 Elsevier Science Publishers B.V., Amsterdam. Retrieved 2012-03-01. 
  5. ^ "Anatomy of a flood, Kosi, India, 2008". scribd. Retrieved 2012-03-01. 
  6. ^ Tom Woodhatch, "Nepal Handbook", p. 167, Footprint, ISBN 0658000160
  7. ^ "India-Nepal Treaty". Ministry of Water Resources, Government of India. Retrieved 2012-03-01. 
  8. ^ "India, Nepal fast-track Sapta-Kosi power project". The Indian Express, 17 February 2012. Retrieved 2012-03-01. 
  9. ^ "Interlinking of rivers". Retrieved 2012-03-01.