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<br />TABLE OF CONTENTS
<br />
<br />PREFACE ....,.,........,.........",..,.,..........,....,...."........,...."..............,.....,....,...,....,.,............,..,.....,.....,jj
<br />
<br />TABLE OF CONTENTS ,..........."....,...."...............,...",..,..,......,.....................'..........,......,.....,...,.iii
<br />
<br />INTRODUCTION .,........,.."...,.,..,..,....,......,.......,....,..,......,....."..............".'....,......,....,....,......".....' 1
<br />
<br />Purpose and Scope.........,..............,.,..,...,.....,........,.......,.,.,...".....,....,..........."..,.................. 1
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<br />Authorization.......... '..............,......... .......... ......,........,.. ,.., ........,....................' ..... ..., ......,...... 1
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<br />STUDY AREA DESCRlPTION .........,......,..........,..,....,.,....,.........,........,.................,.......,.....,..,....2
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<br />Community Description ,............,.',.,..,........,..,..,.........,.,..."....,.."..,..........,......,..............,.., 2
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<br />Watershed Description ,.,.............,....................."....."....,........"................,..............,....,.....2
<br />Flooding Problems and Flooding History ..,......,......,......,..,..,.'.........................,..,..,........... 3
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<br />Previous Studies,..,......."....,....,...................,. ......,..,....,......,...... ,................,...., ....,......,..,.... 3
<br />Community Response to the CWCB Designation and Approval Process .....,.........,....,.....3
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<br />ENGINEERING ME11IODS,....................,..........,.............,.....,....,.........,......................"....,......... 4
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<br />Hydrologic Analysis ,............'.........,.,.,.,....,.......,..,..,.."....".............,'...................,......,.......4
<br />Hydraulic Analysis ..,.,..,'....,..,........,.,.........,....,.,......,..............,..........,..........."............,...".4
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<br />Floodplain Mapping ......,.,.....,..........,."......,.."............,........".........,.,......,....,....,.......,....,... 4
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<br />FLOODPLAIN MANAGEMENT ..."..,..,......"....,.......,'...,.....,..,....,......,..............,..........'...,......,.., 5
<br />Local Ordinance Requirements ,......,..,..................',.......,.....,..,..,.....,........,.........,..,...,......., 5
<br />
<br />Flood Insurance ......".,....."....,..,..,....................'..........".,......,..,....,..,.,.,.....,......'........,..,..... 5
<br />Floodplain Management Alternatives ......'.....,..,.............,......,....,.......'..................,....,'...... 5
<br />
<br />APPENDIX ..,.......,..,........................................,..........,.,..,.,..,..,.....................,...............,....,..,.......' 7
<br />Designation Request Letter
<br />Figure 1 - Location Map
<br />Figure 2 - Montezuma County
<br />FIRM Index Map Cover Sheet
<br />Streams in Study
<br />Reservoirs in Study
<br />List of CWCB Floodplain Infonnation
<br />Memorandum: Summary of Meeting and Site Visit
<br />Discharges Reported in AS
<br />CWCB Hydrology Worksheets
<br />USGS Hydrology Worksheet
<br />HEC-FFA Output
<br />
<br />iii
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