The proposed action would consist of a mixture of floodplain evacuation of approximately 130 structures on St. Friol Island, flood proofing for other property owners, continued conformance to floodplain regulations and continued availability of flood insurance within the 100-year floodplain at Prairie du Chien, Wisconsin. Flood damage reduction would be provided by evacuation of residences and businesses, through flood proofing of some structures and by limiting future floodplain development to compatible uses. Open space would be created which would enhance recreational, cultural, historical, and biological environmental elements of the area. Demolition and structural relocations would result in temporary noise, dust, possible water degradation and vegetation losses in the immediate construction site. Adverse social impacts would occur to those residents who are forced to evacuate. These would be most severe to elderly persons and those on fixed incomes. (Author).