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~) ,t In addition to a "no action" alternative, various structural and nonstructural alternatives are identified and discussed in the Corps of Engineers report. In the Phase I GDM structural alternatives evaluated included reservoirs, closure structures, river diversion, levee and floodwall raisings, bridge modifications and channel modifications. Nonstructural alternatives included flood forecasting and warning, flood insurance, floodplain regulations, raising and floodproofing structures, land acquisition, structure demolition and permanent floodplain evacuation. The alternatives are described and discussed in the Phase I and Phase II GDMs and are hereby incorporated by reference. The Phase I GDM identified the recommended plan as the environmentally preferable alternative since it retained the island preservation measure, which provided a positive contribution to the Environmental Quality account. The Phase II GDM refmed the Phase I GDM recommended plan to minimize adverse impacts to environmental, cultural, and social resources. The plan that has the greatest net benefits over costs without unacceptable environmental and social impacts was selected and recommended. We have reviewed and evaluated documents concerning the proposed action; views of other interested agencies; and the various practicable means to avoid or minimize environmental hann from the construction of this project. All practicable means to avoid or minimize adverse environmental effects have been incorporated into the recommended plan. The public interest will best be served by implementing the improvements identified and described in the Phase II General Design Memorandum and Supplemental Environmental Impact Statement, as uPfJroved and modified? 5 / ( ,.. / ~ ~. ASA(CVv'). . c<:, ~_" ~//fffd~ -~:~~, USA Director of Ci viI Works ~fhft