Why 130 mm of rain brought Gurgaon to its knees

Experts say that behind this chaos lies a drainage infrastructure that is unable to withstand such a high intensity of rain. Gurgaon, which lies at the foothills of the Aravallis, earlier had hundreds of water bodies, lakes and dams (dams) in its lower parts, which served as natural drainage plumes by storing water and preventing floods. Over the years, urbanization and concreting have occurred either on top of or in the course of natural drains, obstructing the natural water course. According to a district management report from 2018, Gurgaon had more than 640 bodies of water in 1956, which decreased to 251 by 2018.

“From sectors 68 to 80, the drainage network is nonexistent and in sectors 81 to 112 near NPR, only 60-70 percent of the area has a drainage network. Often, drainage lines are choked by construction debris or encroachment and do not have sufficient capacity. “If the drainage network is not connected, the roads will be flooded with rainwater,” said the urban transportation systems design expert.
Passengers wade in the waterlogged Subhash Chowk on Friday. (Express Photo)
Among the areas hardest hit on Thursday was the Narsingpur-Khandsa district on the highway, where water usually accumulates due to its terrain. “It’s a low-key area. Because of the surface drainage slope at the extension, rainwater would have flowed into the sewer before it was splashed, but over time due to housing and urbanization, the sewer became useless. So, when the intensity of the rainfall is heavy, it floods,” a GMDA official said. Officials said five pumps have been deployed to pump out rainwater, but because the rain continues, it will take time for the water to recede at the sprawl.

In Mayfield Park near Sector 51, ongoing sewage removal work has caused flooding, officials said. “For the polluted water removal work, a wall was built and panels were placed in the sewage. Although we quickly removed the panels and broke part of the wall, the water pressure was very high, and as a result, rainwater accumulated at the extension,” the official said.

On Friday morning, too, as the city continued to rain, passengers waded through the flooded tunnel at Rajiv Chowk. Officials said that although the tunnels were not affected on Thursday, cables for four pumps installed in the Rajiv Chowk tunnel were found stolen Friday morning, causing some water to accumulate there. “It was observed that the pumps were not working in the morning at the Rajiv Chowk Tunnel since the pump cables were stolen on Thursday evening. Vehicles were able to pass through them,” an official said.
A waterlogged subway in Rajiv Chowk after heavy rain in Gurujra on Friday. (PTI)
Also affected by waterlogging on Thursday were major areas such as the traffic light on Sector 46/47, Artemis chowk, CRPF chowk, Basai chowk, South City 1, AIT chowk on golf course road, and Tigra on golf course road. Extended golf course, Bakhtawar chowk, Sector 18, Sector 21/22 T, near Hanuman Chowk, Chitla Mata Road, Sector 15, Carterpuri Road, Sector 40, Manesar Bus Stand, near Tulip chowk and along several stretches of the highway National 48 and SPR and internal sector routes.
Passengers attempt to drive their car across a water-filled road in Gurgaon on Thursday. (PTI)
The rain left pedestrians and passengers stranded for hours as some vehicles broke down and zigzag queues were seen on National Highway 48. This situation prompted the district administration to Consulting Edition At 10.15pm, corporate offices and private institutions are required to direct their employees to work from home to avoid traffic congestion and ensure that repair work can be carried out smoothly by civil agencies.

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