|
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />\.
<br />.
<br />I.
<br />.
<br />I.
<br />.
<br />.
<br />.
<br />
<br />TABLE OF CONTENTS
<br />
<br />PREFACE .,'.,..,.'....,................,."..",.,..,...,.......".".,..,..,...,.,....,.....,..".,'.,...",........,..,.."."..,....,..,..., ii
<br />
<br />TABLE OF CONTENTS .........,.,'.",....,..."."..,......,...,.,......"....,.".",.,.,..................".".".......,......,iii
<br />
<br />INTRODUCTION ,.,..',.,....".....................,..,.."."..................,.',..,."..,.......,...,..,......"..,...."."..,..,..., 1
<br />
<br />Purpose and Scope ,..".,. ",..",.,.".. "."...,.,..,.."..,.,......,........".., ..,..,............,......,."..,.....,...... 1
<br />
<br />Authorization..................,..."..".,.."."..".,.....,...,.,..."....,...............,..".,.......,........,.."."........ 1
<br />
<br />STUDY AREA DESCRlPTION ,.,..,..,......,....."..................,..,..,..,..."....,...,.....,.....,...,..".,..,...,..,..., 2
<br />
<br />Community Description ..,...,...,.....,..',..,..,..,.."....'.'.'".'..,..,........,..".,'..,...,..,........... ",."...... 2
<br />
<br />Watershed Description ,'..............,....,................................,..,.."."........,...,.."."..,'.......,...,... 2
<br />Flooding Problems and Flooding History ........................................................................... 2
<br />
<br />Previ ous Studies,.".".".,..",.",.,....",.........................,..,.....",.,."......,.....,......"..,..,.....,......,.. 3
<br />Community Response to the CWCB Designation and Approval Process ........................., 3
<br />
<br />ENGINEERING METHODS......"..,...,......,..,...".,..,..,.....,.,..".".,............,..".,'...,..,............,...,..".., 4
<br />
<br />Hydrologic Analysis ...,.,..",."...,.',..,....,.".,.."..".,.'.....,........,..,...,. "..,...,................,..,..,..,.... 4
<br />Hydraulic Analysis .,...,.....".."'.,.",..,.."."..,.,,..,....,..........,,..,...,..,'."........,......"..,........"..,... 7
<br />
<br />Floodplain Mapping ..... ........,......,......... ,.....,........,..,.....,..,....,.......,....."...,..,'.."..............",. 8
<br />
<br />FLOODPLAIN MANAGEMENT ..............,...,....................,...,..,..,'..............,.."...,.."..,.....,...,..".., 9
<br />
<br />Local Ordinance Requirements ...."..........,................,..,.."..,'.,..", ,.. ,......."..".",.,........,...".. 9
<br />
<br />Flood Insurance,."....",.,.",..".,...................,.,.......................".".,........"......"..,.."..,..,..,...". 9
<br />Floodplain Management Alternatives ..."................,.....,...,...,.,..,..........,...,..".."........,..,...., 9
<br />
<br />APPENDIX ,."..,...........,......,.............................................................................................,..,........ 11
<br />Designation Request Memorandum
<br />Figure 1. Study Area Location Map
<br />Figure 2. Gunnison County
<br />FIRM Index Map Cover
<br />Floodplain Information Warehouse printout for Gunnison County
<br />Gunnison County PIS - Streams in Study
<br />CWCB Hydrology Worksheets
<br />Peak Discharge for Detailed Floodplains (From PIS)
<br />USGS Gaging Station Peak Flow Analysis
<br />
<br />11l
<br />
|