IFFCO Chowk Sewer Repair Nears Final Testing Stage

GURUGRAM: The underground repair at IFFCO Chowk is close to a crucial test, though commuters still face several days of barricading before the service lane can be restored. Gurugram Metropolitan Development Authority has replaced most of the collapsed master sewer, leaving a four-to-five-foot section open so accumulated silt can be removed before the new line is checked for leaks.

Officials said the remaining patch would be closed after desilting and testing. The road above will then be handed to the National Highways Authority of India for reconstruction. The combined process was expected to require another three to four days, subject to the pipeline passing the test and the excavation remaining stable.

Collapse shut two service lanes

The failure occurred on 25 August in the service lane on the Delhi-to-Jaipur side of NH-48. A 1,000-millimetre master sewer collapsed below the carriageway and a large cavity opened at the surface. Two service lanes were barricaded, forcing traffic into the remaining space at one of Gurugram's busiest junctions.

GMDA first had to dewater the pit and divert sewage before workers could safely reach the damaged section. Replacement began on 27 August. Keeping a short part of the pipe open now is not unfinished work in the ordinary sense; it provides access to remove silt that could obstruct flow or hide a problem at the joint. Filling the excavation before testing would risk trapping a defect below a newly rebuilt road.

The next milestone is therefore not merely laying the final patch. Engineers must send flow through the repaired line, inspect the joints and confirm that no water is escaping into the surrounding soil. Only then can the sinkhole be filled in compacted layers and the road surface reconstructed.

The incident has widened the sewer review

GMDA has said it is surveying older sewer pipelines elsewhere in the city following the cave-in. A tender has already been floated for an upgrade from Bakhtawar Chowk to the Sector 46 cut, while the Sohna Road line is also proposed for improvement. The authority is considering rehabilitation between IFFCO Chowk and Sikanderpur using a method that can reduce the need for continuous open excavation.

Those plans remain separate from the emergency repair and should not be presented as completed work. Their value will depend on inspections that identify pipe age, corrosion, settlement and repeated choke points before a road gives way. Busy surface corridors often conceal utilities installed in different periods with incomplete maps, making preventive surveys less disruptive than responding after a collapse.

For road users, the practical advice is to expect slower movement around the service lane until barricades are formally removed. A forecast of three or four days is an engineering estimate, not a guaranteed reopening time, particularly with rain expected this week.

The repair will be complete only when both systems work: sewage must pass through a leak-free line below, and vehicles must have a stable carriageway above. Rushing either layer would recreate the conditions for another closure at a junction that has already absorbed a week of congestion.