Gurugram’s richest address flooded: Why Golf Course Road struggled with heavy rain

Gurugram's affluent Golf Course Road found itself submerged in heavy rain, causing widespread flooding in one of the city's wealthiest neighborhoods. DLF Magnolias, a luxury apartment complex along the road, saw videos of knee-deep, muddy water circulating on social media. The flooding also affected the area between DLF Golf Course and the Rapid Metro viaduct. Residents expressed frustration over the city's drainage system, questioning why nothing had been done despite repeated demands for accountability.

Gurgaon received 75 mm of rainfall by 5 p.m. on Monday, with 52 mm falling within a brief three-hour period. Civic officials admitted that the drainage network in Gurgaon is inadequate to handle such heavy rainfall. The Gurgaon Metropolitan Development Authority (GMDA) reported that the drainage system was initially designed to manage only 2.5 mm of rain per hour and has since been upgraded to handle 6.5-7 mm per hour.

However, when faced with intense rainfall, even this upgraded system becomes overwhelmed, leading to waterlogging on roads.

DLF has its own internal drainage network within its residential complexes, which collects rainwater and transports it to larger GMDA drains outside the colonies. However, even if pumps and other measures are employed to clear water from within the complex, flooding persists if external drains are blocked or already operating at capacity.

Nitya Mohan, head of facilities for DLF City (Phases 1-4), explained that this issue becomes more severe when large GMDA drains downstream are already at capacity. The GMDA drain at the affected location measures 900 mm by 900 mm, and during peak rainfall, it reaches or exceeds its maximum capacity, causing water to back up and accumulate.

Another contributing factor to the flooding on Golf Course Road is its location at the foot of the Aravalli hills. Heavy rain sends large volumes of water downhill, making the road a natural collection point for runoff. GMDA Executive Engineer Amit Godara stated that all pre-monsoon checks, including desilting and inspection of underpass drainage, have been completed.

However, the issue lies in the fact that all the runoff from the Aravalli hills, which has no alternative natural bypass channel, accumulates directly on Golf Course Road before entering the main drains. During extremely heavy rainfall, the volume of runoff from the hills can overwhelm the drainage system, leaving even one of Gurgaon's most expensive residential corridors vulnerable to flooding.