Pumps didn't start on time due to snag: What caused flooding in Gurgaon's underpasses
The 642-metre underpass flooded due to a delay in switching to the backup diesel generator.
The PWD-installed system includes two 22-horsepower motors powered by DHBVN.
"The electrical jumper got damaged during Wednesday night's rain, causing the main power supply to fail. Initially, efforts were made to restore the connection, but when that didn't work, the on-ground staff switched to power backup," the senior official of PWD said.
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Officials also noted that the absence of a protective canopy allowed water from Maharana Pratap Chowk and Sheetla Mata Mandir to flow directly into the underpass.
The PWD has now planned corrective measures to avoid recurrence. A Rs 3.5 crore project has been awarded for installing a canopy on the ramp areas of the underpass to prevent direct rainwater inflow. "The provision of a canopy was not originally made. However, we have received the direction from the govt to install the canopy at the underpass. GMDA has deposited the amount, and work will start soon. The canopy will help prevent the underpass from surface runoff during future rains," the official added.
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Every year, GMDA, along with other civic agencies including PWD and NHAI, conducts pre-monsoon checks to assess the readiness of dewatering systems, drainage networks, and backup power systems across the city. In May this year, GMDA flagged the issue of non-functional pumping machinery at the underpass near Medanta Hospital, Rajiv Chowk, and sector 84-36B and asked the NHAI to rectify it.
Yet, the on-ground situation shows little improvement.
Even on Saturday, the underpass near Medanta Hospital was seen waterlogged with ankle-deep water.
However, the NHAI officials, who maintained this underpass, said the waterlogging was cleared by Friday evening."However, water re-entered the underpass through the expansion joints from the side drain during the night. Currently, there is no waterlogging at the Medanta underpass. The team is doing the maintenance work and cleaning debris from the pumps," the NHAI official said.
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