Key Facts about Jiadhal River

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The tranquil flow of the Jiadhal river is now being disrupted by the harsh realities of climate change.

About Jiadhal River

  • It is a northern tributary of the Brahmaputra River.
  • Course:
    • It originates in the sub-Himalayan mountains of Arunachal Pradesh at an altitude of 1247m.
    • After passing through a narrow gorge in Arunachal Pradesh, the river enters the plains of Assam in Dhemaji district, where it flows in braided channels.
    • The river finally debouches into the Brahmaputra near Selamukh in Lakhimpur district.
    • But after the construction of the embankment over the Kherkutiya Suti of the Brahmaputra, the river confluences with the Subansiri River.
    • The total length of the river is 187 km.
  • Topographically, the upper partof the basin is hilly (Himalayan range), and the middle part onwards is a plain area.
  • The total area of the catchment is 1053.20, of which 696.80, and 356.4 come under Assam and Arunachal Pradesh respectively.
  • The sub-basin of Jiadhal experiences heavy rainfall. It carries heavy silt load from its 1346 sq. km catchment area during the rainy season and deposits them on its bed in the plains, resulting in the considerable rise of its riverbed. 
  • Jiadhal is known for frequent changingof its course and devastating floods.
  • The Jiadhal River is a classic example of a flashy river and produces floods with a sudden, high dischargeover a short time interval (a few hours to a day) and with a high sediment load and debris.

Related Topics:

Gomti River

Q1: Which are the main tributaries of Brahmaputra?

The principal tributaries of the river joining from right are the Lohit, the Dibang, the Subansiri, the Jiabharali, the Dhansiri, the Manas, the Torsa, the Sankosh and the Teesta whereas the Burhidihing, the Desang, the Dikhow, the Dhansiri and the Kopili joins it from left.

Source: How shifts in the rivers are threatening food security in Assam | Alarming Variations Ep-02