Beginning high up in Tibet and snaking its way through Nepal and India, the Koshi River eventually empties into the storied Ganges near the town of Kursela after a journey of 450 miles. Notoriously fickle about its exact path, the river is often called “the Sorrow of Bihar” because of its devastating floods during monsoon season near Bihar, India. This prompted the building of a barrage (aka a weir or sluice) near Nepal’s border with India in the late 1950s. Equipped with 56 gates spaced across a 1,150-meter (3,772-foot)…
