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<br />1998. Colorado RIIIld HazlIrd Mitigation Plan (409J
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<br />Table of Contents
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<br />I
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<br />Preface Contents-2
<br />Table of Contents Contents-3
<br />1.0 Introduction 1-1
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<br />1.1 Purpose..................................................................................................................... 1-1
<br />1.2 Scope............................................._....................................................................... 1.1
<br />1.3 Authority................................................................................................................... 1-1
<br />1,3.1 Federal.".,....,....". ,... ,." ,....,., ,."",..'"....",...." ......" .,...,... ,."" ...,......"...." ,.. 1-1
<br />1,3.2 State ...'..........'..'...'.....'........"'.."..."...__.' "....".....,......,.,..."....",.....',.,....,. 1-1
<br />1.3.3 Local Govemment........",...."..",..,..,..,..,.".....".....,.....,.,...,"",..".,.",'....." 1-2
<br />1.4 Goals and ObjectiveS ............................................................................................... 1-2
<br />1.5 Detinitions................................................................................................................. 1-2
<br />2.0 Hazard Identification and Evaluation 2-1
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<br />2.1 People and Hazards......................:........................................................................... 2-1
<br />2.2 Types of Hazards...................................................................................................... 2-1
<br />2,2. 1 Floods......... ,..... ,... ....', '. ,.,...,.."......" ,..,....,.............,......'...... ..... ,. .,.." .,."", 2-1
<br />2.2.1.1 General Rain Roods...........,.......,...,...................,..................... 2-3
<br />2.2.1.2 Thunderstorm Roods ...........................,....,.............................. 2-3
<br />2.2,1.2.1 1997 - Rood Event Description .....,...,....,..,.......... 2-4
<br />2.2.1.2.2 1997 - Surface and Hydrology.........................,.... 2-6
<br />2.2,1,3 Snowmelt Floods..,..,.............,.........................................,........ 2-6
<br />22,1.4 Rain on Snow Roods....................,...............,...,....,......,........,.. 2-7
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<br />2.2.1.5 Ice Jam Roods..........,.....,...............,...,.,...................__,...,..,..... 2-8
<br />2.2,1.6 Dam Failure Floods ,.....................................,.........,....,............ 2-8
<br />2.2.2 Geologic Hazards Closely Associated with Flooding ........,...........__......,..... 2-9
<br />2.22.1 Mud and Debris Rows.................................,..,...................,..... 2-9
<br />2.2,2,2 Catastrophic LandsHdes.........,.......,.....,....."....,.,....--................ 2-9
<br />2.3 H"lStoric Damages ................................................................................................... 2-10
<br />2,3.1 Flood Damages,.... ,. ,..".........,.... ......"......"...",..".."...."..".,.,........... ,. '... 2-10
<br />2.3.2 Mud and Debris Flow Damages...,.......................................................,... 2-11
<br />2.3,3 Catastrophic Landslide Damages ....,..,...............,................................,... 2-11
<br />2.3.3.1 Buffalo Creek Rood Event (1996)..........................,.,......,.,..... 2-11
<br />2.4 RJsIc /nfonnaIiOn ..................................................................................................... 2-12
<br />2.4.1 Loss Potential,.....................,......,..,........................,.......,..,..............,...., 2-13
<br />2.4,2 Potential impact of No Action .......,.,..........,.......,...............................,..... 2-13
<br />3.0 Capability Assessment 3-1
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<br />3.1 Legal Framewor1r...................................................................................................... 3-1
<br />3,1,1 Floodplain Management..................__..............,......................................... 3-1
<br />3,1.2 Geologic Hazard Management ............................,...............,.....,....,....,..... 3-1
<br />3.2 Government OrgarUmuons & Roles of Different Levels
<br />and Internal Organizations.......................................................................................3-1
<br />3.2.1 Slate Departments ....,.........................,.....,.............................................., 3-1
<br />3,2.1.1 Governor's Office ...............,....,.....................,........................., 3-2
<br />3.21,2 Department of Natural Resources.,........,...............,.................. 3-2
<br />3.2,1.2,1 Colorado Water Conservation Board.,.......,.......... 3-2
<br />3.2.1.2,2 Colorado Geological Survey....,.............,.....,......., 3-4
<br />3.2,1,2.3 Division of Water Resources ....,............,.....'.......' 3-4
<br />3.2.1,2.4 Colorado SOU Conservation Boan:J................,......, 3-6
<br />3.2.1.25 Division of Wildlife..........................,......,..........--.. 3-6
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<br />Conteots . 3
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<br />1/29/988:44:35 MIo
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