Why water not receding in city after floods?

Nearly 48 hours after the cyclone hit Tamil Nadu, many areas in Chennai and its suburbs are still marooned. Explaining the reason why the water has not receded in many parts of the city even after the rains stopped, K Srikanth of COMK said, “Large-scale water logging will take time to drain because the rivers, canals, and SWD are not able to take the water to the sea. Storm surge due to Cyclone Michuang effectively working like a barrier. Now that it has made landfall things will become better.”