Koshi River can be a blessing It was known over a decade ago that due to the high level of sedimentation, Koshi River may change its course in any major flood. This time, initial reports suggest that it was not due to the massive floodwater but lack of regular maintenance and supervision caused the breach of embankment. In order to store monsoon rainwater, and prevent such calamities, a 269 meters tall Koshi High Dam was proposed near Baraha Kshetra of Sunsari district over a decade ago. The project would have generated over 3000 megawatt of hydroelectricity, supply controlled irrigation water for 5.4 lakhs hectares in Nepal and 9.7 lakhs hectares in India and supply fresh drinking water to millions of people of the low lands of Nepal and India, who are suffering from arsenic/fluoride/ excessive iron contamination of ground water. Hence Koshi River could have been converted from “sorrow of Bihar” into blessings for the entire region.
http://www.nepalnews.com.np/archive/2008/others/guestcolumn/sep/guest_columns_04.php