The heavy rainfall in the urban area causes flooding because of absence of proper storm water drainage network system or inadequacy of existing drainage system. storm water drainage systems are vital components of urban infrastructure, playing a crucial role in managing water flow, protecting communities and infrastructure, and safeguarding the environment from flood in densely populated areas. In this study storm drainage design plan have been proposed in the low-lying area of Mahadevapura region, Bangalore. IDF curve have plotted using Gumbel’s distribution to obtain rainfall events for different return period. Integrating various spatial layers like Contour elevation, slope, land use land cover and natural drainage the drainage plan is designed through EPA SWMM. Designed system was simulated for one day historical maximum rainfall over the past three decades and 2-year return period rainfall event. The obtained results are tabulated and water elevation profiles are plotted, it suggests that proposed system is well enough to drain out the excess rain water into existing network.
Storm water drainage, SWMM, Spatial Analysis, Urban flood
