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East Alabama Regional Multi- Jurisdictional Hazard Mitigation Plan: Phase Two June 2020

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East Alabama Regional Multi- Jurisdictional Hazard Mitigation Plan: Phase Two June 2020 1 East Alabama Regional Multi- Jurisdictional Hazard Mitigation Plan: Phase Two June 2020 A Hazard Mitigation Plan for AEMADivsions D Counties: Autauga County, Autaugaville, Billingsley, Prattville, Elmore County, Deatsville, Coosada, Eclectic, Millbrook, Tallassee, Wetumpka, Montgomery County, Pike Road, and City of Montgomery. Prepared For: Autauga County, Town of Autaugaville, Town of Billingsley, City of Prattville, Town of Elmore, Elmore County, Town of Deatsville, Town Coosada, Town of Eclectic, City Millbrook, Town Tallassee, Town Wetumpka, Montgomery County, Town of Pike Road, and City of Montgomery. Prepared By: Lee-Russell Council of Governments 2207 Gateway Drive Opelika, AL 36801 334-749-5264 2 Contents Prepared For: ........................................................................................................................... 1 Section 1: Introduction .................................................................................................................... 6 1.1 Introduction ............................................................................................................................. 7 1.2 Authority ................................................................................................................................. 7 1.3 Funding .................................................................................................................................... 7 1.4 Purpose.................................................................................................................................... 7 1.5 Multi-Jurisdictional Plan Adoption ............................................................................................ 8 1.6 Multi-Jurisdictional Planning Process........................................................................................ 8 1.7 Hazard Mitigation Plan Process ................................................................................................ 9 1.8 Public and Other Stakeholder Involvement ............................................................................ 15 1.9 Integration with Existing Plans ............................................................................................... 17 Section 2- Regional Profile ........................................................................................................... 19 2.1 Background ............................................................................................................................ 20 2.2 Demographics ........................................................................................................................ 23 2.3 Business and Industry ............................................................................................................ 30 2.4 Infrastructure ......................................................................................................................... 31 2.4.1 Transportation ......................................................................................................... 31 2.4.2 Utilities ......................................................................................................................... 31 2.5 Land Use and Development Trends .......................................................................................... 31 2.6 NFIP Compliance ................................................................................................................... 33 Section 3- Hazard Risk Assessment ............................................................................................. 34 3.1 Risk Assessment ..................................................................................................................... 35 3.2 Natural Hazard Identification ................................................................................................. 35 3.3 Dams ........................................................................................................................................... 43 3.3.1 Description .............................................................................................................. 43 3.3.2 Extent by Jurisdiction ............................................................................................. 55 3.3.3 Previous Occurrences and Impact ........................................................................... 56 3.3.5 Probability of Future Occurrences .......................................................................... 57 3.4 Drought ..................................................................................................................................... 58 3.4.1 Description .............................................................................................................. 58 3.4.2 Extent by Jurisdiction ............................................................................................. 58 3.4.3 Previous Occurrences and Impact ........................................................................... 64 3 3.4.5 Probability of Future Occurrences .......................................................................... 65 3.5 Earthquakes ............................................................................................................................... 66 3.5.1 Description .............................................................................................................. 66 3.5.2 Extent by Jurisdiction ............................................................................................. 66 3.5.3 Previous Occurrences and Impact ........................................................................... 67 3.5.4 Probability of Future Occurrences .......................................................................... 71 3.6 Extreme Temperatures............................................................................................................... 73 3.6.1 Description .............................................................................................................. 73 3.6.2 Extent by Jurisdiction ............................................................................................. 74 3.6.3 Previous Occurrences and Impacts ......................................................................... 74 3.6.4 Probability of Future Occurrences .......................................................................... 74 3.7 Flooding ..................................................................................................................................... 76 3.7.1 Description .............................................................................................................. 76 3.7.2 Extent by Jurisdiction ............................................................................................. 95 3.7.3 Previous Occurrences and Impact ........................................................................... 96 3.7.4 Probability of Future Occurrences .......................................................................... 97 3.8 Hail ............................................................................................................................................ 99 3.8.1 Description .............................................................................................................. 99 3.8.2 Extent by Jurisdiction ............................................................................................. 99 3.8.3 Previous Occurrences and Impact ......................................................................... 100 3.8.5 Probability of Future Occurrences ........................................................................ 100 3.9 High Winds & Thunderstorms .................................................................................................. 101 3.9.1 Description ............................................................................................................ 101 3.9.2 Extent by Jurisdiction ........................................................................................... 101 3.9.3 Previous Occurrences and Impact ......................................................................... 101 3.9.5 Probability of Future Occurrences ........................................................................ 102 3.10 Landslides .............................................................................................................................. 103 3.10.1 Description ............................................................................................................... 103 3.10.2 Extent by Jurisdiction .............................................................................................. 103 3.10.3 Previous Occurrences............................................................................................... 104 3.10.4 Probability of Future Occurrences ........................................................................... 106 3.11 Lightning ................................................................................................................................ 107 3.11.1 Description ............................................................................................................... 107 3.11.2 Extent by Jurisdiction ........................................................................................... 107 4 3.11.3 Previous Occurrences and Impact ......................................................................... 109 3.11.4 Probability of Future Occurrences
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