Expiration date: 6/30/2023
The Corps is proposing modifications to the Long Tom Channel Improvement Project in Benton County, OR. The Recommended Plan, total removal of the Monroe Drop Structure, would restore approximately 43 acres of aquatic and floodplain habitat, enhance connectivity to a historic meander through installation of a larger culvert and engineered pool and riffle structure, and armoring of the OR-99 bridge piers to prevent scour caused by increased velocities upstream of the drop structure.