The Greater Chennai Corporation (GCC) has completed desilting 493.83 km (29.42%) of the 1,671.6-km stormwater drain network taken up through contracts as of August 28, 2026. Work is under way along 77.29 km (4.62%), while that along 1,109.2 km (65.94%) remains to be taken up.

Tiruvottiyur has recorded the highest physical progress at 57.43%, followed by Sholinganallur at 54.87% and Alandur at 46.41%. Anna Nagar has recorded 37.94%, followed by Madhavaram (34.71%), Perungudi (30.73%), Manali (30.69%), Valasaravakkam (28.64%), Ambattur (28.56%), Adyar (24.98%), and Royapuram (22.08%). Thiru Vi Ka Nagar has recorded 17.01%, the lowest among the zones.

The desilting work covers 8,252 roads through 101 packages, of which 2,351 roads have been completed, while work is in progress on 389 roads. Work on a total of 43,614 machine holes has also been completed.

For silt catch-pit cleaning, the GCC has identified 1,10,082 pits. Phase I has covered 1,10,082 pits (89%), while Phase II has covered 30,430 pits (28%), as of August 28.

As directed by the Stare government, the work will be completed by the end of September, according to GCC officials.

The GCC has also been allocated ₹100 crore for monsoon preparedness, including desilting, road restoration, pumps, and deployment of 1,000 seasonal workers.