Environmental Considerations of Thalweg Disposal

by Frank W. Collins, US Army Corps of Engineers, Environmental Analysis Branch, Rock, Island, IL, USA,
Jon R. Duyvejonck, US Army Corps of Engineers, Environmental Analysis Branch, Rock, Island, IL, USA,
Karen L. Bahus, US Army Corps of Engineers, Environmental Analysis Branch, Rock, Island, IL, USA,



Document Type: Proceeding Paper

Part of: Dredging and Dredged Material Disposal

Abstract: Disposal of dredged material in the thalweg or deepest portion of the Upper Mississippi River is one of several disposal alternatives that can be utilized. Aside from the mechanical/cost problems associated with thalweg disposal, there are unanswered questions concerning its environmental acceptability. Phase I studies are attempting to determine the potential impacts of thalweg disposal on the fish species of the Upper Mississippi River.

Subject Headings: Dredged materials | Environmental issues | Rivers and streams | Fish management | Aquatic habitats | Mississippi River

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