Laserfiche WebLink
<br />. <br /> <br /> <br />. <br /> <br />CHAPTER 4 <br />FLOODPLAIN <br />ADMINISTRATION <br />AND <br />aELlNEATION <br /> <br />wr;ECTION 2.0 <br />FLOODPLAIN <br />DELINEATION <br /> <br />COLORADO STATEWIDE <br />DRAINAGE AND FLOODPLAIN MANAGEMENT CRITERIA MANUAL <br /> <br />CHAPTER 4 <br />FLOODPLAIN ADMINISTRATION AND DELINEATION <br /> <br />SECTION 2.0 <br />FLOODPLAIN DELINEATION <br /> <br />TABLE OF CONTENTS <br /> <br />2.1 INTRODUCTION ............................................................................................... CH4-203 <br />2.2 LEVEL OF STUDY ............................................................................................ CH4-203 <br />2.3 WATERSHED CONDITIONS ............................................................................ CH4-204 <br />2.4 TOPOGRAPHIC MAPPING .............................................................................. CH4-204 <br />2.5 FLOOD HAZARD ZONE DESiGNATIONS....................................................... CH4-205 <br />2.6 DETAILED FLOODPLAIN DELINEATION METHOD ....................................... CH4-206 <br />2.6.1 HYDROLOGIC ANALYSIS .......................................................................... CH4-206 <br />2.6.1.1 METHODOLOGY ................................................................................... CH4-206 <br />2.6.1.2 DETENTION ........................................................................................... CH4-207 <br />2.6.1.3 PREVIOUS STUDIES ............................................................................ CH4-208 <br />2.6.2 HYDRAULIC ANALYSIS ............................................................................. CH4-208 <br />2.6.2.1 METHODOLOGY ................................................................................... CH4-208 <br />2.6.2.2 CROSS SECTIONS .................................................................................. CH4-210 <br />2.6.2.3 BLOCKAGE ............................................................................................ CH4-21 0 <br />2.6.2.4 PREVIOUS STUDIES ............................................................................ CH4-211 <br />2.6.3 FLOODPLAIN DELINEATION ..................................................................... CH4-211 <br />2.6.4 FLOODWAY DELINEATION ....................................................................... CH4-212 <br />2.7 LIMITED FLOODPLAIN DELINEATION METHOD........................................... CH4-212 <br />2.7.1 HYDROLOGIC ANALYSIS .......................................................................... CH4-212 <br />2.7.2 TOPOGRAPHIC INFORMATION ................................................................ CH4-212 <br />2.7.3 HYDRAULIC ANALYSIS ............................................................................. CH4-213 <br />2.7.4 FLOODPLAIN DELINEATION ..................................................................... CH4-213 <br />2.8 AREAS PROTECTED BY LEVEES .................................................................. CH4-213 <br />2.8.1 FLOODPLAIN ANALYSIS ........................................................................... CH4-213 <br />2.9 AREAS PROTECTED BY DAMS...................................................................... CH4c214 <br />2.9.1 FLOOD CONTROL DAMS .......................................................................... CH4-214 <br />2.9.2 NON-FLOOD CONTROL DAMS ................................................................. CH4-214 <br />2.10 ALLUVIAL FAN FLOODING.............................................................................. CH4-215 <br /> <br />AUGUST 2002 <br /> <br />FLOODPLAIN DELINEATION <br /> <br />CH4-201 <br />