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4 Epilogue
Pages 42-46

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From page 42...
... In addition to the navigation project, several other anthropogenic changes have affected river ecology and water quality, including levee construction, construction of hydropower dams, floodplain and watershed agricultural practices, pollution loads, deforestation, and population and urbanization trends. A key lesson from the past 175 years of managing the Upper Mississippi and its resources is that it has never been possible, in Twain's words, to "fetter and handcuff that river and boss him" (Twain, 1883, p.
From page 43...
... The Corps' feasibility study had to address high levels of uncertainty in many of its subject areas, including waterway traffic forecasts, river responses to operational changes, and future navigation and shipping technologies and practices. These uncertainties are characteristic of all studies of this kind and were particularly prominent in the UMR-IWW Feasibility Study.
From page 44...
... . The Corps' UMR-IWW feasibility study represents a major milestone in a long process of trying to enhance the economy of the Upper Mississippi River region, in the broad sense of conserving and rehabilitating its environmental and social features along with
From page 45...
... Epilogue 45 its engineered structures. The Corps has taken impressive strides in crossing this milestone, but as the Corps moves forward with UMR-IWW system management, a key challenge will be to retain the better features of the present plan, while correcting and strengthening its weaker elements within the context of the proposed implementation schedule.


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