The Padma Barrage Project

The Padma Barrage Project

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Why in News

  • Bangladesh has officially signed off on the construction of the Tk 50,443 crore project to build the Padma barrage.
  • This project aims to combat seasonal water scarcity and assert lower-riparian control over its water resources.

About The Padma Barrage

  • The Padma barrage is a massive, planned transboundary water-management structure designed to act as a large reservoir.
  • It serves as a defensive infrastructure choice by Bangladesh to regulate downstream flows and increase groundwater recharge.
  • The structure helps secure water equity against upstream diversions like India's Farakka barrage.
  • The barrage is being constructed entirely across the main channel of the Padma River.
  • It is positioned exactly 180 km downstream of India's Farakka barrage in West Bengal, placing it very close to the India-Bangladesh international border.
  • The structural blueprint dictates a concrete-anchored barrage spanning 2.1 km in length.
  • It is engineered to hold a massive reservoir pondage capacity of 2,900 million cubic meters of freshwater.
  • The project is optimized to directly stabilize agricultural irrigation and drinking water supply for 6.5 crore people living across the vulnerable southwestern and northern regions of Bangladesh.
  • It is projected to cost Tk 50,443 crore with an execution timeline spreading over seven years.

About the Padma River

  • The Padma River is a major, high-volume transboundary river flowing through Bangladesh.
  • It is the main downstream distributary of the Ganges River after it crosses the international boundary from India into Bangladesh.
  • The river originates at Devprayag, where the Alaknanda and Bhagirathi rivers merge to form the Ganga.
  • After entering Bangladesh near Shibganj, the Ganga officially takes the name Padma.
  • The Padma joins the Jamuna at Goalundo and later merges with the Meghna at Chandpur before reaching the Bay of Bengal.
  • The Padma flows through extremely low-lying deltaic plains, making the region highly vulnerable to flooding and sea-level rise.
  • Reduced river flow promotes heavy silt deposition, raising the riverbed and increasing flood risks during monsoon seasons.
  • Sediment carried by the river enriches soils and aquatic ecosystems, supporting fisheries and local livelihoods.
  • Freshwater from the Padma maintains the salinity balance of the Sundarbans Mangroves, sustaining its unique mangrove biodiversity.