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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />MAIN DITCH AT <br />PIPESTONE, MINNESOTA <br /> <br />TECHNICAL ASSISTANCE REPORT <br /> <br />TABLE OF CONTENTS <br /> <br />IWD <br /> <br />Introduction <br />Study purpose <br />Scope of study <br />Previous Section 205 study <br />Study area description <br />Description of existing flood problems <br />Hydrologic analysis <br />Hydraulic analysis <br />Description of evaluations and conceptual plans <br /> <br />LIST OF TABLES <br /> <br />& I.itJ.c <br /> <br />I Existing conditions peak discharges used in hydraulic model <br />2 Conceptual improvements - preliminary cost estimates <br />3 Cost Estimate for acquisition of commercial and residential <br />structures within lOO-year floodplain <br /> <br />LIST OF PLATES <br /> <br />& I.itJ.c <br /> <br />1 Location map and vicinity map for Pipestone area <br />2 Plan view for proposed improvements <br />3 Typical sections for conceptuallOO-year improvements <br />4 Typical sections for conceptual I OO-year improvements <br /> <br />P.lfe No. <br /> <br />I <br />1 <br />2 <br />2 <br />3 <br />3 <br />3 <br />4 <br />5 <br /> <br />P.lfe No. <br /> <br />4 <br />11 <br /> <br />13 <br />