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Bed-Load Transport Measurements on the Chippewa River Using the ISSDOTv2 Method

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Technical Report

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ERDC Coastal and Hydraulics Laboratory Vickisburg United States

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This Regional Sediment Management RSM Technical Note TN provides information on bed-load measurements obtained on the Chippewa River, Wisconsin, in the spring of 2018. The ISSDOTv2 method was developed by the U.S. Army Corps of Engineers USACE, Engineering Research and Development Center ERDC, Coastal and Hydraulics Laboratory CHL, River and Estuarine Engineering Branch. The method uses time-sequenced bathymetric data to determine a bed-load transport rate. When transport rates are obtained with concurrent flow-rate data, it is possible to develop bed-load rating curves. Such rating curves are extremely valuable in forecasting or hindcasting bed-load sediment delivery for the location at which the data were obtained. This is very important for river managers in developing sediment budgets and in the planning of dredging operations. In the present study, the USACE Mississippi Valley Division MVD, St. Paul District MVP, had contracted with the U.S. Geological Survey USGS for real-time monitoring of suspended-sediment concentrations suspended sand load and bed-load sediment on the lower Chippewa River, a major source and contributor of sand-sized sediment to the Upper Mississippi River UMR. The bed-load values obtained using ISSDOTv2 are presented in this RSM TN.

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  • Hydrology, Limnology and Potamology

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