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Weaver Bottoms Backwater Rehabilitation

by Jon S. Hendrickson, Army Corps of Engineers, St. Paul, United States,
Dennis D. Anderson, Army Corps of Engineers, St. Paul, United States,



Document Type: Proceeding Paper

Part of: Hydraulic Engineering

Abstract:

Navigation channel dredge material was used to construct closure structures and islands in lower pool 5 on the Upper Mississippi River in 1986. Primary objectives included aquatic habitat improvement in Weaver Bottoms and providing a long term channel maintenance plan for lower pool 5. Channel maintenance dredging has been reduce 50-percent. Reduced water/sediment inflows and wave action have changed the sediment transport regime in Weaver Bottoms, causing a morphometric response. Improvements in fish and wildlife resources haven't been achieved yet, partly due to a river-wide crash in aquatic vegetation in the late 1980's.

Subject Headings: Sediment transport | Aquatic habitats | Vegetation | Maintenance and operation | Channels (waterway) | Dredging | Rivers and streams | Mississippi River

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