Koilwar bridge – UPSC Prelims

  • It is a bridge constructed over the Sone river in Bihar.
  • This rail-cum-road bridge connects Arrah with Patna, the capital of Bihar state in India.
  • Son River: 
    • It is the second largest of the Ganges southern tributaries after Yamuna River.
    • Its chief tributaries are the Rihand, Kanhar and the North Koel.

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