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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />II <br />I <br />I <br />II <br />I <br />I <br />I <br />I <br />I <br />II <br /> <br />ROCK RIVER AT <br />ROCK RAPIDS, IOWA <br /> <br />TECHNICAL ASSISTANCE REPORT <br /> <br />TABLE OF CONTENTS <br /> <br />Item <br /> <br />Introduction <br />Study purpose <br />Scope of study <br />Previous Section 205 study <br />Study area description <br />Existing improvements <br />Description of existing flood problems <br />Hydrologic analysis <br />Hydraulic analysis <br />Description of evaluations and conceptual plans <br /> <br />LIST OF T ABLFS <br /> <br />No. Title <br /> <br />1 Comparison of existing conditions peak discharges <br />2 Preliminary cost estimates <br /> <br />LIST OF PLATES <br /> <br />No. Title <br /> <br />1 Location map and vicinity map for Rock Rapids area <br />2 Proposed conceptual levees - plan view and typical sections <br />3 Closure structure typical details <br /> <br />Page No. <br /> <br />1 <br />1 <br />2 <br />2 <br />3 <br />3 <br />4 <br />4 <br />5 <br />5 <br /> <br />Page No. <br /> <br />4 <br />11 <br />