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Simulated and Measured Sediment Loadings Before and After BMP Implementation on a Military Base Watershed

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:  Paper number  032306,  2003 ASAE Annual Meeting . (doi: 10.13031/2013.14028) @2003
Authors:   Wesley D. Rosenthal, Dennis W. Hoffman, June Wolfe III
Keywords:   BMPs, detention structures, modeling, sediment, subsoil ripping, trafficability, watershed

Erosion from military training areas is becoming an increasing problem that can contribute significant amounts of sediment loadings into nearby streams. For example, preliminary results from a heaviliy traveled 22 km2 Shoal Creek military base watershed in central Texas indicated as much as 27,913 Tons of sediment was lost in 2000. To help reduce erosion, NRCS personnel have implemented BMPs, such as subsoil ripping and installation of rock structures in eroded channels in Shoal Creek. To assist in evaluating the long-term impacts of implementing such practices, the SWAT (Soil & Water Assessment Tool) model compared estimated runoff and sediment loadings at the outlet of the watershed before and after implementation of the management practices.

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