Application of HEC-HMS to Model the Additive Effects of Multiple Detention Basins over a Range of Measured Storm Volumes

The composite effect of multiple detention basins on the total streamflow in a small urbanizing watershed is discussed. The case study presented is for Valley Creek watershed, located in Chester County, Pennsylvania. A range of storms was measured using a network of five recording rain gages. Model...

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Authors: Claire Welty, Robert Traver, Clay H. Emerson
Conference Location: Philadelphia, PA
Conference Dates: June 23 - June 26, 2003
Proceedings Title: World Water and Environmental Resources Congress 2003
Format: Conference Proceeding
Subjects:
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Summary: The composite effect of multiple detention basins on the total streamflow in a small urbanizing watershed is discussed. The case study presented is for Valley Creek watershed, located in Chester County, Pennsylvania. A range of storms was measured using a network of five recording rain gages. Model results show that the detention basins have no attenuating effect on peak streamflow for a typical storm event. The analysis points to the need for a fundamental re-evaluation for stormwater detention basin design.
ISBN: 0784406855
DOI: 10.1061/40685(2003)319