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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 />CITY OF STERLING <br />DRAINAGE AND FLOOD CONTROL <br />IMPLEMENTATION PLAN <br />TABLE OF CONTENTS <br /> <br /> Pai1e No. <br />r. EXECUTIVE SUMMARY I <br /> . General I <br /> . Study Area I <br /> . Previous Reports 4 <br /> . Hydrology 4 <br /> . Hydraulics 5 <br /> . Proposed Improvements 5 <br /> . Prioritization 10 <br /> . Summary Recommendations 13 <br />II. INTRODUCTION 14 <br /> . Authorization 14 <br /> . Objective/Scope 14 <br /> . Study Streams and Limits 14 <br />III. EXISTING STUDIES AND PROPOSED IMPROVEMENTS 17 <br /> . General 17 <br /> . Review and Discussion 17 <br />IV, PAWNEE CREEK/P A WNEE OVERFLOW 22 <br /> . Existing Flooding Conditions 22 <br /> . Hydrology 24 <br /> . Hydraulics 27 <br /> . Project Formulation 27 <br /> . Plan Description 32 <br /> . Cost Estimate 40 <br />V. SAND CREEK 45 <br /> . Existing Flooding Conditions 45 <br /> . Hydrology 45 <br /> . Hydraulics 46 <br /> . Project Formulation 50 <br /> . Plan Description 52 <br /> . Cost Estimates 57 <br />