Canalisation of Rivers

August 19, 2023

The state of Punjab has recently faced significant flooding due to intense rainfall and dam releases. The region’s rivers, including Sutlej, Beas, and Ravi, along with rivulets and seasonal streams, contribute to its water network. Experts advocate for effective regulation of water sources to mitigate flood risks. Canalisation, the process of controlling water flow through channels and structures, is proposed as a solution. While Punjab has major dams and embankments, inherent weaknesses make them vulnerable to breaches.

Canalisation could divert water and manage releases from dams, offering a comprehensive flood prevention strategy. The recent floods, caused by overflowing rivers and local waterways, highlight the need for canalisation to manage both heavy rainfall and dam discharges. Long-term canalisation strategies and strengthened embankments are suggested to avert future disasters.

What were the two major causes of flooding in Punjab?

Heavy regional rainfall and dam releases were responsible for the recent flooding incidents in Punjab.

Why are perennial and non-perennial rivers originating from Himachal and Jammu & Kashmir significant for Punjab’s water network?

These rivers contribute substantial monsoon water to Punjab, and their overflow, especially when dams are filled to capacity, poses flood risks even without local rainfall.

What is canalisation, and how does it work?

Canalisation involves regulating water flow by directing it into specific channels, utilizing mini dams, interconnecting canal systems and rivers, and reinforcing embankments.

What are the weaknesses of Dhussi Bandhs, and why are they susceptible to breaches?

Dhussi Bandhs are earthen embankments along major rivers, but their limitations make them vulnerable to breaches, even with moderate increases in river flows.