Bank Erosion Study of the Kaskaskia River Carlyle Lake to New Athens, IL. Volume 1

摘要

An erosion and sedimentation study of the Kaskaskia River, between Carlyle Lake, Illinois and New Athens, Illinois, was conducted by the U.S. Army Corps of Engineers, St. Louis District. The study was carried out in order to define and evaluate lateral bank erosion experienced on the Kaskaskia River below Carlyle Lake and determine, if possible, remedial measures to abate this erosion in an environmentally sensitive manner. The study determine that 'headcutting' was occurring on the river as a result of a navigation channelization project. The headcutting or channel degradation had migrated approximately 14 river miles upstream of the navigation project. A series of grade control structures were proposed to abate the headcutting. In addition, high costs and low cost bank stabilization measures were developed for eroding banklines above the headcutting reach.