Defined: Why flooding is an issue for Gurgaon each monsoon


As per figures launched by the district administration, Gurgaon acquired 23 mm rainfall within the 24 hours ending 8.30 am Wednesday, with one other 95 mm between 8.30 am and 11 am. This, officers say, is “six to seven occasions” the standard quantity of rain acquired by the town. As a degree of comparability, in 2016, 52 mm rainfall wreaked havoc, resulting in waterlogging in a number of elements and inflicting visitors jams that left a number of folks stranded on the roads for greater than six hours.

Which elements of Gurgaon had been most impacted by the rain?

Officers say the complete metropolis was impacted; there was waterlogging throughout Gurgaon. Among the many worst affected stretches, nonetheless, had been the Narsinghpur-Khandsa stretch, the Golf Course street, and 7 of the 11 underpasses within the metropolis. The DLF Section 1 underpass on Golf Course street was exceptionally unlucky, with rainwater accumulating nearly until its roof.

Why was the impression notably unhealthy on the DLF Section 1 underpass?

The situation of the underpass itself results in the construction being susceptible, with runoff water from the Aravalli Hills travelling down by means of the Section 1 space and filling the underpass. For the reason that construction is situated at a degree under the principle drainage community of the town, DLF has constructed a concrete rainwater harvesting chamber into which any rainwater is supposed to move. Within the occasion of this filling up, three pumps situated within the underpass are supposed to be activated, pumping the water as much as the principle drainage community. On Wednesday, nonetheless, as soon as the chamber crammed up and the pumps had been activated, the water, as an alternative of flowing into the drainage community, skilled a backflow, making it not possible to pump it out.

In a number of different elements of the town, officers stated, an identical backflow occurred, making it not possible to clear the water.

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Gurgaon, Gurgaon news, Gurgaon waterlogging, Gurgaon floods, Gurgaon rains, Gurgaon weather forecast, Indian Express An aerial view of Gurgaon on Wednesday.

What was responsible for this backflow of water?

Rainwater usually flows into the Badshahpur drain, which then carries this to the Najafgarh drain. On Wednesday, the unusually heavy rainfall led to the Badshahpur drain flowing at full capability, resulting in it overflowing and making it not possible for the rainwater to be pumped out.

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Why is waterlogging a difficulty in Gurgaon yearly?

As it’s situated on the foothills of the Aravallis, Gurgaon is at an obstacle. Till the Nineteen Eighties, the town had pure “jheels” by means of which rainwater would move. Resulting from fast urbanisation within the late 90s and early 2000s, nonetheless, a number of constructions had been constructed on prime of, or within the route of those jheels, blocking the pure course of the water.

Additional, a variety of concretisation passed off on the Badshahpur drain itself — the principle drainage system — with this encroachment additional limiting the capability of the drain. In a number of new sectors of the town, a drainage system is but to be constructed and linked to the principle drainage system of Gurgaon.

Gurgaon, Gurgaon news, Gurgaon waterlogging, Gurgaon floods, Gurgaon rains, Gurgaon weather forecast, Indian Express Vans submerged in Gurgaon on Wednesday.

What’s being achieved to resolve the waterlogging drawback in Gurgaon?

In 2016, a mission was introduced to increase the Badshahpur drain at Khandsa village, a 600 metre stretch the place its width reduces from 30 metres to 10 metres. A lot of the work on this has been achieved, however some nonetheless stays because of litigation over constructions that should be eliminated. A complete drainage mission for the town has additionally been authorised by the state authorities which is able to give attention to arresting rainwater from excessive degree areas by draining them out by means of creeks. Along with this, the administration can also be seeking to develop 20 test dams within the Aravallis to test the move of water down into the town.

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