How The 36-Gate Gandak Barrage Was Built

How was the massive Gandak Barrage built? In this video, we explore the engineering behind the Gandak Barrage, how its 36 gates work, why it was built, and how it helps manage the powerful flow of the Gandak River. We’ll also look at the challenges of Himalayan floods, sediment, river erosion, and how this decades-old structure continues to face a changing river. A simple documentary explaining the story and engineering behind one of India’s important river structures. Disclaimer: This video is made for educational and documentary purposes. The information is based on publicly available sources and historical records. Some visuals may be recreated or AI-generated for illustration. They should not be considered exact historical photographs. We have tried to present the information as accurately as possible, but minor errors may remain.