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BMC identifies 174 dangerous buildings, 249 landslide spots and 403 flooding spots in Mumbai ahead of monsoon
During the first pre-monsoon briefing, the BMC announced numbers for dangerous buildings, landslide-prone areas, and flooding spots identified in Mumbai, with several measures underway or planned. The briefing also outlined new pump deployments with IoT monitoring and ongoing desilting and road-improvement efforts ahead of the monsoon.
Why It Matters
The briefing details Mumbai's preparedness for the coming monsoon, outlining safety, drainage, and infrastructure measures to mitigate flooding, landslides, and waterlogging.
Timeline
7 Events
Extensive cement concrete road programme; pothole expenditure reduced; pothole fix-it app to be launched
April 28, 2026
Road infrastructure is being addressed through an extensive cement concrete road programme. Of Mumbai’s 2,050 km road network, about 1,745 km has already been concretised, with more stretches to be completed before monsoon and unfinished sections made motorable. Pothole-related expenditure dropped from ₹230 crore in 2023 to ₹164 crore in 2024, ₹97 crore in 2025, and ₹45 crore in 2026. A pothole fix-it app will be launched for quicker resolution.
59,720 trees identified for trimming; NDRF and fire brigade lifeguards’ preparedness reviewed
April 28, 2026
Bhide noted that 59,720 trees were identified for trimming, and the preparedness of the National Disaster Response Force (NDRF) and fire brigade lifeguards has been reviewed.
Desilting progress reported across city and suburbs; Mithi river progress
April 28, 2026
Progress in desilting stands at about 45% in the city and western suburbs and 26% in the eastern suburbs, with major nallah cleaning at 38.97% overall and the Mithi river about 27% complete. Minor nallahs average 45.64% completion, with slower work in M East ward (Govandi) and S ward (Bhandup).
547 dewatering pumps to be installed with IoT monitoring from May 5
April 28, 2026
To tackle waterlogging, 547 dewatering pumps will be installed and become operational from May 5. All pumps will be fitted with IoT-based devices for smartphone monitoring, with a central control room at headquarters to track uptime and identify non-functioning pumps.
496 flooding spots identified; 403 addressed; 93 spots may flood in heavy rainfall
April 28, 2026
Bhide stated that 496 flooding spots were identified and 403 of them have been addressed. At the remaining 93 spots, water may accumulate if rainfall is very heavy, with pumping arrangements made where natural drainage is insufficient.
249 landslide-prone locations identified; 96 retaining walls under construction; reinspections directed
April 28, 2026
A detailed review identified 249 landslide-prone locations across the city, classified into sensitive and ultra-sensitive zones. Retaining walls are under construction at 96 sites, and assistant commissioners and MHADA have been directed to reinspect all existing protective walls to check for lifespan and drainage-related issues.
174 dangerous buildings identified; 72 vacated; 71 stay orders; court action planned
April 28, 2026
During her first pre-monsoon briefing, BMC commissioner Ashwini Bhide announced that 174 buildings are in the 'C1 dangerous' category. Seventy-two of these have been vacated, some are vacated but not demolished, 71 have stay orders, and the BMC will pursue court action. The public is being sensitised to vacate or provide undertakings where needed.