Waterlogging and Flood Mitigation in New Khapri, Nagpur

Abstract

Flooding and waterlogging have emerged as persistent challenges in New Khapri, Nagpur, due to an inefficient and outdated drainage infrastructure. This study aims to assess the existing drainage system, identify critical deficiencies, and propose sustainable flood mitigation measures. A comprehensive site investigation was conducted, highlighting major issues such as excessive vegetation growth in drains, inadequate drainage width, absence of retaining walls, improper road slopes, insufficient pipe sizes, and frequent blockages. Additionally, feedback from local residents provided valuable insights into the severity of waterlogging problems during heavy rainfall. To understand the drainage characteristics, a morphometric analysis of the existing drain was performed using parameters such as slope, roughness, hillshade, aspect, Shuttle Radar Topography Mission (SRTM) data, and stream flow patterns. Based on these findings, a syphon system has been designed to regulate excess water flow and prevent waterlogging. The proposed intervention aims to enhance the efficiency of the drainage network, reduce flood risks, and improve the overall urban resilience of New Khapri. By integrating engineering solutions with hydrological analysis, this study provides a strategic framework for sustainable flood management, ultimately improving the quality of life for residents in the region.

Introduction

Urban flooding and waterlogging have become major problems in rapidly growing cities like Nagpur, Maharashtra, due to unplanned urbanization, inadequate drainage, and changing climate patterns. New Khapri, a locality in Nagpur, faces recurrent flooding caused by factors such as poor road slopes, undersized pipes, blocked drains, and vegetation growth. Increasing rainfall intensity worsens the situation, necessitating a detailed study to identify causes and develop solutions.

The research involved field surveys, drainage assessment, community feedback, morphometric and hydrological analysis using GIS tools, and rainfall data from the Regional Meteorological Centre (RMC). Key findings include insufficient drainage capacity, obstructions in channels, improper slope, and lack of retaining walls. The study proposes engineering solutions such as enlarging drains, vegetation management, constructing retaining walls, and introducing a syphon system under a bridge to improve water flow.

The syphon design features multiple pipes arranged to optimize hydraulic efficiency and prevent sediment buildup, installed using a pushing technique to avoid damage to existing structures. These measures aim to reduce waterlogging, improve road safety, and enhance flood resilience. The research integrates scientific analysis with community engagement to provide actionable recommendations for policymakers and urban planners to mitigate urban floods in Nagpur and similar cities.

The literature review supports these findings by highlighting global urban flood management approaches, including hydraulic structures, GIS-based flood zoning, decision support systems, and the impact of urbanization on flood risk.

Conclusion

The study on Waterlogging and Flood Mitigation in New Khapri, Nagpur aimed to assess the existing drainage system, identify key challenges, and propose an effective engineering solution. Through a comprehensive approach involving catchment area analysis, rainfall data collection, morphometric assessment, and syphon system design, the research successfully developed a flood mitigation strategy tailored to the region’s hydrological conditions. Key Findings and Outcomes: The existing drainage infrastructure in New Khapri found to be inadequate in managing peak rainfall intensities, leading to frequent waterlogging and urban flooding. Morphometric analysis provided valuable insights into flow patterns, runoff behavior, and hydrological characteristics, enabling the optimization of the drainage system. A syphon drainage system was designed using peak rainfall data to facilitate smooth water conveyance, preventing water stagnation beneath the bridge. Cross-sectional designs developed in AutoCAD helped visualize and refine the drainage solution, ensuring structural feasibility and efficiency. The proposed syphon system has been validated for its hydraulic efficiency and is expected to effectively manage stormwater runoff, reducing flood risk in the area. Impact and Future Implications: Once implemented, the syphon drainage system will: Significantly reduce waterlogging and improve flood resilience in New Khapri. Enhance infrastructure durability by preventing prolonged water accumulation. Improve road safety and usability during heavy rainfall events. Contribute to sustainable urban stormwater management, supporting long-term flood mitigation. This research provides a practical engineering solution for urban flood control, demonstrating how hydrological analysis, drainage design, and advanced installation techniques can be integrated to mitigate waterlogging and enhance urban infrastructure resilience. Future work may focus on continuous monitoring, adaptive flood management strategies, and further optimization to ensure long-term effectiveness.

References

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Copyright

Copyright © 2025 Pratham Chandankhede , Milind Patil, Kalpana Rathod , Altaf Saudagar, A. A. Gawai . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.