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<br />I <br /> <br />TABLE OF CONTENTS <br /> <br />Paqe <br /> <br />PREFACE . . . . . . . <br />Acknowledgements. . <br />Report Acquisition. <br /> <br />1 <br />1 <br />2 <br />3 <br /> <br />CITY OF MONTROSE <br />FLOOD CONTROL <br />AljD <br /> <br />DRAIMGE PLACJ <br /> <br />EXECUTI~E SUMMARY <br />INTRODUCTION. . <br />Authorization <br />Objectives. . <br />Scope of Work <br />Mapping and Surveying <br />Related Studies ... <br /> <br />4 <br />4 <br />5 <br />6 <br />6 <br />) <br /> <br />STUDY AREA <br />Basin Characteri,tics <br />Existing Drainage Systems <br /> <br />9 <br />10 <br /> <br />~'Iay 1981 <br /> <br />FLOOD HISTORY '. <br />HYDROLOGY... . <br />PedkDischarges <br />Urbanliydrology <br />HYDRAULIC ANALYSIS. <br /> <br />12 <br /> <br />17 <br />17 <br />17 <br /> <br />The City of Montrose. Colorado <br />"d <br />The Colorado Water Conservation Board <br /> <br />lIAMAGE ASSESSMENT <br /> <br />19 <br />21 <br />14 <br />24 <br />28 <br />30 <br />30 <br />30 <br />31 <br />32 <br />34 <br /> <br />Prepared Fo~: <br /> <br />Prep~:,~d ~y: <br /> <br />FLOOD CONTROL AND DRAINAGE PLAN <br />Montrose Arroyo <br />Cedar Creek . . . . <br />Dry Cedar Creek .. <br />Plan Selection. . . <br />Preliminary Design. <br />Plan Benefits '.. <br />Cost Estimates. .. <br />Plan Implementation <br /> <br />Gingery Associates, llle <br />2840 South Vallejo Street <br />E~glewood, Colorado SOl10 <br />T~lephorle: (303)761-4860 <br /> <br />ECONOMICANALYSIS. . <br />General . . . . . . <br />Averager,nnual Benefits <br />Average Annual Project Costs. <br />Benefit/Cost Ratio. <br />Fin<lrlcing......... . <br /> <br />36 <br />36 <br />36 <br />J7 <br />38 <br />39 <br /> <br />G.A.!. JobNo.1647.llll5 <br />