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Field Evaluation of the Sediment Transport Model Stream with a Bank Erosion Component

by Deva K. Borah, (M.ASCE), Omni Environmental Corp, Princeton, United States,
Mona S. Dashputre, Omni Environmental Corp, Princeton, United States,



Document Type: Proceeding Paper

Part of: Hydraulic Engineering

Abstract:

The graded sediment routing and stream bed evolution model STREAM of Borah, Alonso and Prasad was expanded earlier by incorporating a riverbank erosion component of Osman and Thorne. In this study, the combined model was evaluated in a 312-km reach of the Missouri River. The model predicted changes in bed elevations and channel widths, and many other hydraulic and sediment variables over a 20-year period. Model results were compared with observed data from the U.S. Army Corps of Engineers. Sensitivity analyses were conducted for different model parameters. The model was found to be highly sensitive to the critical bank shear stress.

Subject Headings: Sediment transport | River bank stabilization | River and stream beds | Shear stress | Sensitivity analysis | Hydraulic models | Mathematical models | Missouri River

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