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Budhabalang, Subarnarekha, Jalaka rivers

30 Jun 2025 GS 1 Geography
 Budhabalang, Subarnarekha, Jalaka rivers Click to view full image
Context : The Odisha government has placed Balasore district on high flood alert due to rising water levels in major rivers like the Budhabalang, Subarnarekha, Jalaka, and Sono

1. Subarnarekha River

  • Origin: Near Nagri village, close to Ranchi, Jharkhand

  • Length: ~395 km

  • States Covered: Jharkhand, West Bengal, Odisha

  • Mouth: Bay of Bengal (near Talsari in Balasore district, Odisha)

  • Tributaries:

    • Left: Kharkai River, Kanchi River

    • Right: Raru River, Karkari River

  • Significance:

    • The name Subarnarekha meansstreak of gold,” due to traces of gold found in its sands (historically mined by local tribes).

    • Major urban centers on its banks include Jamshedpur and Ghatsila.

    • Important for industrial use, irrigation, and drinking water supply.

  • Environmental Concerns: Pollution from mining and industrial discharge, especially around Jamshedpur.


2. Budhabalang River

  • Origin: Similipal hills, Mayurbhanj district, Odisha

  • Length: ~175 km

  • State Covered: Odisha

  • Mouth: Bay of Bengal (near Balaramgadi, Balasore district)

  • Major Tributaries:

    • Sone, Gangahar, Kani

  • Significance:

    • Drains areas of Similipal Biosphere Reserve — an ecologically rich region.

    • Major for irrigation and agriculture in northern Odisha.

    • Frequent flash floods during monsoon season.

  • Issues: Sedimentation, seasonal flooding, and siltation near the river mouth.


3. Jalaka River

  • Origin: Also from Similipal hills, Mayurbhanj district, Odisha

  • Length: Shorter river, approx. ~90–100 km

  • State Covered: Odisha

  • Mouth: Bay of Bengal, through Balasore district

  • Significance:

    • Seasonal river prone to flooding in Balasore plains.

    • Affects low-lying villages during intense monsoon.

    • Supports local agriculture and serves as a flood carrier for the region.

4. Sono River
  • Location: Northern Odisha, primarily in Balasore district

  • Origin: Likely from the eastern slopes of the Similipal hills (like other rivers in the region)

  • Course: A seasonal tributary or independent small river draining into the Bay of Bengal

  • Length: Relatively short; local river system



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