section_path: Irrigation/Dams and barrages
section_name: Dams and barrages
paragraph_text: Dams and barrages
  
  A major barrage at Farakka was opened on 21 April 1975, It is located close to the point where the main flow of the river enters Bangladesh, and the tributary Hooghly (also known as Bhagirathi) continues in West Bengal pastKolkata. This barrage, which feeds the Hooghly branch of the river by a 42 km (26 mi) long feeder canal, and its water flow management has been a long-lingering source of dispute with Bangladesh. Indo-Bangladesh Ganges Water Treaty signed in December 1996 addressed some of the water sharing issues between India and Bangladesh. There is Lav Khush Barrage across the River Ganges in Kanpur.
  
  Tehri Dam was constructed on Bhagirathi River, a tributary of the Ganges. It is located 1.5 km downstream of Ganesh Prayag, the place where Bhilangana meets Bhagirathi. Bhagirathi is called the Ganges after Devprayag. Construction of the dam in an earthquake-prone area was controversial.
  
  Bansagar Dam was built on the Sone River, a tributary of the Ganges for both irrigation and hydroelectric power generation. Ganges floodwaters along with Brahmaputra waters can be supplied to most of its right side basin area along with central and south India by constructing a coastal reservoir to store water on the Bay of Bengal sea area.