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Title: Environmental Assessment : Red Wing Wildlife League Dredged Material Placement Site, Shoreline Reclamation and Bank Stabilization, Pool 4 of the Upper Mississippi River, Goodhue County, Minnesota
Authors: United States. Army. Corps of Engineers. St. Paul District
Keywords: Goodhue County (Minn.)
Mississippi River
Aquatic ecology
Environmental protection
Environmental management
Publisher: United States. Army. Corps of Engineers. St. Paul District.
Abstract: The St. Paul District, Corps of Engineers, has prepared this Environmental Assessment in accordance with requirements of the National Environmental Policy Act of 1969, Council on Environmental Quality regulations and Corps of Engineers regulations. This EA describes the activities and environmental effects for a proposal to reclaim and stabilize the banks at the Red Wing Wildlife League (RWWL) site within Pool 4 of the Upper Mississippi River near Red Wing, Minnesota. In all, about 5,000 feet of the river’s shoreline would be reconstructed along areas that have degraded as a result of past erosion. To do so would require about 38,0000 cubic yards (cy) of sediment material (primarily sand), which would be obtained from maintenance dredging activities conducted at nearby designated sites identified in the Corps’ Channel Maintenance Management Plan (CMMP; Corps 1997a). The project would allow for the beneficial use of dredged material. In addition, 46 tree groins or vanes would be integrated into the newly-established shoreline as additional erosion protection. The proposed work would benefit the associated terrestrial and aquatic biota by improving and stabilizing habitat along the terrestrial-aquatic interface. Construction methods would involve mechanical placement using a combination of large equipment such as barges, backhoes, cranes, dump trucks, and dozers. The work is expected to occur during the traditional work season for dredging the Upper Mississippi River over the course of the next three years, depending on the hydrological conditions, dredging needs, available resources, and funding. The source of most of the materials for shoreline reclamation would be from identified cuts of nearby designated sites maintained as part of the Corps’ Nine-Foot Navigation Channel; these sites are identified in the CMMP. The effects of dredging are not addressed in this EA because they have already been considered as a part of the Environmental Impact Statement for the CMMP. However, a Clean Water Act Section 404 evaluation has been conducted because dredged material (as fill) would be discharged into waters of the United States.
Description: Environmental Assessment and Finding of No Significant Impact
Rights: Approved for Public Release; Distribution is Unlimited
Appears in Collections:Environmental Documents

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