Watershed-Scale Evaluation of a System of Storm Water Detention Basins
- 1 May 2005
- journal article
- Published by American Society of Civil Engineers (ASCE) in Journal of Hydrologic Engineering
- Vol. 10 (3), 237-242
- https://doi.org/10.1061/(asce)1084-0699(2005)10:3(237)
Abstract
The effectiveness of an existing system of storm water detention basins operating at the watershed scale is evaluated. Data utilized in the study were collected from Valley Creek watershed in Chester County, Pa., which has undergone rapid development from the westward spread of suburban Philadelphia. Since the late 1970s, more than 100 storm water detention basins have been constructed in this 62 km2 (24 mi2 ) watershed, each designed on a site-by-site basis. The design objective of these detention basins is to limit a site’s postconstruction peak flow rate to or below its predevelopment level for 2- through 100-year storms. To evaluate the watershed-wide effectiveness of the network of detention basins, all basins were surveyed and included in a hydrologic model of the watershed. The U.S. Army Corps of Engineers Hydrologic Engineering Center’s Hydrologic Modeling System (HEC-HMS) model was calibrated by using measured rainfall and observed streamflow from a U.S. Geological Survey (USGS) stream gauge. Res...This publication has 3 references indexed in Scilit:
- Evolution of Clark's Unit Graph Method to Spatially Distributed RunoffJournal of Hydrologic Engineering, 1998
- Multicriterion Stormwater Management MethodsJournal of Water Resources Planning and Management, 1988
- Estimating Soil Water Retention from Soil PropertiesJournal of the Irrigation and Drainage Division, 1982