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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />the non-Federal Sponsors, and other stakeholders. Problems and alternatives statements <br />wilI be defined in a manner that does not preclude potential alternatives to solve the <br />problems and achieve opportunities, Problem and opportunity statements wilI also <br />encompass current as well as future conditions and are dynamic in nature. <br /> <br />Once the problems and opportunities are defined, study-planning objectives wilI <br />be developed, Preliminary problems and opportunities and study objectives were <br />provided above, These objectives guide efforts to solve the problems. <br /> <br />6.3 Inventorying and Forecasting Conditions. An inventory and forecast of critical <br />resources relevant to the problems and opportunities under consideration will be <br />performed, This information is used to further define and characterize the problems and <br />opportunities, A quantitative and qualitative description of these resources is made, for <br />both current and future conditions, and is used to define existing and future without, <br />project conditions, Existing conditions are those at the time the study is conducted, The <br />forecast of the future without-project conditions reflect the conditions expected during <br />the period of analysis. The future without-project condition provides the basis from <br />which alternative plans are formulated and impacts assessed. Gathering information <br />about future conditions requires forecasts, which should be made for selected years over <br />the period of analysis to indicate how changes in economic and other conditions are <br />likely to have an impact on problems and opportunities, <br /> <br />Tasks to be accomplished during this phase include the following, <br /> <br /> <br />-The study area wilI be subdivided into reaches based on hydraulic independence <br />and economic considerations, For each reach, maps of the flooded area wilI be <br />prepared along with discharge-frequency, stage-damage, and damage-frequency <br />curves. These wilI be displayed in a manner that facilitates understating of the <br />flood problem, Future flood damages, based on changes in hydrology, hydraulics, <br />land use or other conditions expected to change during the project life wilI be <br />developed. <br />-The base condition of the study area wilI be established by inventory and <br />analysis of the historical and regional setting, institutional, physical, <br />socioeconomic, and environmental characteristics; existing water resource <br />projects; and planning by others. Tasks include gathering and analyzing baseline <br />data to estimate flood frequencies, durations, depths, and aerial extent; fully <br />defining the extent and magnitude of the flood problem; defining and <br />inventorying the other consequences of flooding such as damage to environmental <br />and cultural resources; and defining structure types, locations, first floor <br />elevations, and values to be used along with the hydraulic information to estimate <br />economic flood damages, <br /> <br />6.4 Formulating Alternative Plans. Alternative plans wilI be formulated to identity <br />specific ways to achieve planning objectives, within constraints, to solve the problems <br />and realize the identified opportunities. Alternative plans can be either structural (e,g., <br />levees) and/or nonstructural (e.g" flood proofing) systems, A full array of alternative <br /> <br />17 <br />