Porur Sponge Park Shows How Chennai Can Tackle Floods and Reclaim Wetlands
A few steps away from the chaos of Mount Poonamallee Road traffic, Porur in Chennai now hosts the city’s first sponge park Dr MS Swaminathan Wetland Eco Park. Once a marshland turned dumping ground and parking lot, the 16.63-acre site has been transformed into a thriving eco-space that not only reduces urban flooding but reconnects residents with nature.
Developed by the Chennai Metropolitan Development Authority (CMDA) in collaboration with Sponge Collaborative, the sponge park slows down, filters, and stores stormwater instead of draining it away quickly like conventional flood-control systems. This nature-based solution is designed to recharge groundwater, create a safe flood buffer, and act as a community green space.
“When we came here initially, the land was degraded, with garb...









