ANNOUNCEMENTS
Urban flooding has emerged as one of the most pressing climate-induced disasters in rapidly urbanizing Indian towns. This thesis examines the case of Sangli-Miraj-Kupwad Municipal Corporation in Maharashtra, which has faced recurring flood events in 2005, 2019, and 2021. These floods, caused not only by river overflow but also increasingly due to heavy rainfall and insufficient stormwater drainage, underscores systematic deficiencies in urban planning. This study examines the physical, social, and institutional vulnerabilities that lead to pluvial flooding using the Environmental and Social Impact Assessment (ESIA) report generated for Component 2.2 of the Maharashtra Resilient Cities Program (MRDP).
While traditional grey infrastructure measures—such as culverts, outfalls, and reinforced concrete storm drains—serve as the basis for existing flood management strategies, this research advocates for a combined approach that incorporates Nature-Based Solutions (NbS). Through a mixed-methods examination of drainage systems, climatic data, stakeholder views, and existing literature, this study highlights the significance of NbS strategies such as rainwater harvesting, permeable pavements, and green buffers. These methods not only reduce flood risk but also provide additional benefits, including the preservation of biodiversity, water conservation, and enhanced social resilience.
The thesis is organized into thematic chapters that examine current infrastructure shortcomings, possible ecological remedies, compliance with Environmental and Social Standards (ESS), and the sustainability of urban resilience over time. Furthermore, it includes global case studies on green infrastructure from cities such as Portland, New York, and Chennai for comparative analysis. The research concludes with targeted policy and design suggestions for incorporating Nature-based Solutions (NbS) into flood management strategies in Sangli, thereby supporting India's wider objectives for climate adaptation and sustainable urban development.
Keywords: Urban flooding, Nature-based Solutions, Grey Infrastructure, Climate Resilience.
