Author(s): Charles Darwin Morris; Shweta Chervu
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Keywords: No Keywords
Abstract: The aim of this research is to investigate the effective discharge of urban streams using Erosion Potential Based approach. A six steps method was adopted to compute effective discharge which includes creating design storms, running the SWMM model with three different set of parameters values to simulate conditions in the watershed in the existing (1998), future (2010), future with detention (2010) and collection of soil samples from the site and testing it in laboratory for a mathematical relationship between shear stress and erosion rate. The Hydraulic output from a SWMM model of the Creeks and a mathematical relationship between erosion rate and shear stress of soil is used to estimate the quantity of potential erosion, which in turn predicts average annual yield produced by the streams using UMR-Erosion Data Viewer. Finally effective discharge is estimated in terms of the event which most contributes towards average annual yield. Additionally this research aims to study the geomorphic parameters of urban streams and to find the effects of detention basins on the effective discharge.
Year: 2009