Reason For Flooding
See also: Kosi embankment and Breaches in Kosi embankmentThe link between India and Nepal through the Koshi River is one of the main reasons for the flood in Bihar. Rainfall in Nepal overloads dams and lead to flash floods in the Bihar region. Geographically Nepal is a hilly region. When heavy rains occur the water flows to the Koshi River. When the water level rises too high, Nepal opens the shutters of Koshi Barrage Pool to protect the Koshi River dams as well as the bridge. This causes waterlogging in the Gangetic plains of Bihar. The large amount of water discharged from Nepal through Koshi Barrage mainly reaches the Bagmati, Budhi Gandak and Ganges rivers, causing them to break the banks and over flow.
Following reason are generally given by experts for the increase in the magnitude of flood in Bihar in last many decades -
Read more about this topic: Floods In Bihar
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