Resuspension of Bed Material and Wave Effects on the Illinois and Upper Mississippi Rivers Caused by Boat Traffic

Abstract

The purpose of this study is to analyze, qualitatively, the effects of waterborne traffic on the Illinois and Upper Mississippi Rivers with regard to the resuspension of bed sediments caused by boat passage and to estimate the increase in turbidity due to an increase in river traffic. The generation of turbulence by tow boats and other surface crafts is considered. The generation of waves by boats with consequent erosion of the banks is also discussed. Aerial color infrared photographs and published information were examined to aid the analysis.