Gurgaon keeps flooding. Can an underground fix solve the problem?

Gurgaon, a bustling city in Haryana, has long struggled with recurrent waterlogging issues, prompting authorities to explore innovative solutions. Recently, during a meeting between Haryana Chief Minister Nayab Singh Saini and Prime Minister Narendra Modi, two high-tech fixes were proposed: specialized rainwater injection wells and underground storage reservoirs.

These proposals emerged following a recent groundwork initiative by the Municipal Corporation of Gurugram (MCG) and technical experts. However, experts caution that these technologies will only be effective if fundamental drainage and ecological problems are concurrently addressed.

The proposed system relies on strategically placed high-capacity rainwater injection wells capable of absorbing between 48 and 80 litres of water per second. These wells, which function as sub-surface structures pushing filtered rainwater deep into underground rock layers, are designed to rapidly drain flooded roads and bypass dense upper grounds in heavily concrete cities.

Coupled with these wells are high-volume underground storage tanks to collect flash surface runoff before it reaches deeper aquifer layers. Additionally, a Supervisory Control and Data Acquisition (SCADA) network will be linked to the Central Ground Water Board to monitor real-time hydrological absorption and groundwater recharge.

Despite the promising technology, former municipal engineers and water experts caution that the implementation will be successful only if it is properly budgeted and monitored. They argue that Gurgaon may also benefit from traditional measures such as creating ponds and reservoirs in parks and removing encroachments from drains.

Furthermore, sustainability and water recharge expert Sunil Pachar expresses skepticism about technology-driven solutions, stating that many government interventions have failed to address fundamental structural issues. He highlights the need to consider localized conditions and grassroots-level opinions, as what works for one area may not work for another.

Despite these concerns, Chief Minister Saini defended the administration's efforts, pointing out Gurgaon's second-highest rainfall in Haryana this season and highlighting the installation of recharge wells that have injected approximately 13,000 metric litres of storm runoff into the ground.