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2009 Lewis County Comprehensive Flood Hazard Management Plan

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2009 Lewis County Comprehensive Flood Hazard Management Plan LEWIS COUNTY COMPREHENSIVE FLOOD HAZARD MANAGEMENT PLAN Prepared for Lewis County, Washington January 2009 LEWIS COUNTY COMPREHENSIVE FLOOD HAZARD MANAGEMENT PLAN Prepared for Lewis County, Washington January, 2009 701 Pike Street, Suite 1200 Seattle, Washington, 98101 280 Summer Street Boston, MA 02210 Table of Contents Lewis County Comprehensive Flood Hazard Management Plan TABLE OF CONTENTS LIST OF FIGURES........................................................................................................................................................ V LIST OF TABLES.......................................................................................................................................................... V EXECUTIVE SUMMARY ...............................................................................................................................................1 1. INTRODUCTION.....................................................................................................................................................1-1 1.1 Purpose and Goals.......................................................................................................................................1-1 1.2 Plan Organization .........................................................................................................................................1-2 1.3 CFHMP Requirements..................................................................................................................................1-2 1.4 Planning Process..........................................................................................................................................1-4 1.5 Definitions and Acronyms.............................................................................................................................1-6 1.5.1 Definitions.........................................................................................................................................1-7 1.5.2 List of Acronyms and Abbreviations..................................................................................................1-9 2. POLICIES ...............................................................................................................................................................2-1 2.1 Policy Introduction ........................................................................................................................................2-1 2.2 Policy Structure.............................................................................................................................................2-1 2.3 Hazard Identification.....................................................................................................................................2-1 2.3.1 Policy HI-1 ........................................................................................................................................2-1 2.4 Education, Outreach and Communication ....................................................................................................2-2 2.4.1 Policy EOT-1.....................................................................................................................................2-3 2.4.2 Policy EOT-2.....................................................................................................................................2-3 2.4.3 Policy EOT-3.....................................................................................................................................2-4 2.5 Planning and Linking Floodplain Management Programs to Other Plans.....................................................2-4 2.5.1 Policies PLN-1 and PLN-2 ................................................................................................................2-4 2.5.2 Policy PLN-3.....................................................................................................................................2-5 2.5.3 Policy PLN–4 ....................................................................................................................................2-5 2.5.4 Policy PLN–5 ....................................................................................................................................2-6 2.5.5 Policies PLN-6 and PLN-7 ................................................................................................................2-6 2.6 Corrective Mitigation Actions ........................................................................................................................2-7 2.6.1 Policies CARL-1 and CARL-2...........................................................................................................2-7 2.6.2 Policy CARL-3 ..................................................................................................................................2-8 2.6.3 Policy CARL-4 ..................................................................................................................................2-9 2.6.4 Policy CARL-5 ..................................................................................................................................2-9 2.6.5 Policy CARL-6 ................................................................................................................................2-10 2.7 Infrastructure...............................................................................................................................................2-10 2.7.1 Policy INF-1 ....................................................................................................................................2-10 2.8 Emergency Services...................................................................................................................................2-11 2.8.1 Policies ES-1, ES-2, and ES-3........................................................................................................2-11 2.8.2 Policy ES-4 .....................................................................................................................................2-12 2.8.3 Policy ES-5 .....................................................................................................................................2-12 2.8.4 Policy ES-6 .....................................................................................................................................2-13 ii Table of Contents Lewis County Comprehensive Flood Hazard Management Plan 2.9 Regulation and Development Standards ....................................................................................................2-14 2.9.1 Policy RDS-1 ..................................................................................................................................2-14 2.9.2 Policy RDS-2 ..................................................................................................................................2-14 2.9.3 Policy RDS-3 ..................................................................................................................................2-15 2.9.4 Policy RDS-4 ..................................................................................................................................2-15 2.9.5 Policy RDS-5 ..................................................................................................................................2-16 2.9.6 Policy RDS-6 ..................................................................................................................................2-16 2.10 Local Ordinances........................................................................................................................................2-16 3. FLOOD HAZARD MITIGATION STRATEGY, PROPOSED PROJECTS, AND SOLUTIONS ................................3-1 3.1 Introduction...................................................................................................................................................3-1 3.2 Project Funding.............................................................................................................................................3-1 3.3 Ranking Criteria and Process.......................................................................................................................3-1 3.4 Listing of Prioritized Projects with Planning Level Cost Estimates................................................................3-2 3.5 Recommended Action Descriptions with Planning-Level Cost Estimates.....................................................3-3 4. FLOODPLAIN FUNDING OPPORTUNITIES AND MANAGEMENT.......................................................................4-1 4.1 Introduction...................................................................................................................................................4-1 4.2 Local Sources...............................................................................................................................................4-1 4.3 Federal Sources and Process.......................................................................................................................4-1 4.3.1 National Flood Insurance Program ...................................................................................................4-1 4.3.2 FEMA Grants....................................................................................................................................4-4 4.4 State Sources and Process ..........................................................................................................................4-6
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