City of Unalakleet, Alaska Local Hazards Mitigation Plan
Total Page:16
File Type:pdf, Size:1020Kb
City of Unalakleet, Alaska Local Hazards Mitigation Plan Cover Photo: Anonymous Date of Plan April 22, 2008 Revised June 30, 2008 Prepared by: City of Unalakleet WHPacific, Inc. of Alaska Bechtol Planning and Development Acknowledgements Unalakleet City Council The Honorable William Johnson, Mayor Velma Johnson, Vice Mayor Frances Degnan Anthony Haugen Harry Johnson Jr. Tim Towarak Leona Grishkowsky City Staff Jay Freytag, Public Works Director Herbert Ivanoff, Administrator City of Unalakleet P.O. Box 28 Unalakleet, AK 99684 Phone: 907-624-3531 Fax: 907-624-3130 Contractors WHPacific, Inc. of Alaska Nicole McCullough, Associate Director, Planning Suzanne Taylor, Project Manager Kelly Singh, Mapping and GPS 300 West 31st Avenue Anchorage, Alaska 99503 Phone: (800) 478-4153 or (907) 339-6500 Email: [email protected] Bechtol Planning and Development Eileen R. Bechtol, AICP P.O. Box 3426 Homer, Alaska 99603 Phone: (907) 399-1624 Email: [email protected] Technical Assistance Ervin Petty, Alaska State DHS&EM Andrew Jones, Alaska State DHS&EM Photography http://www.dced.state.ak.us The preparation of this plan was financed by funds from a grant from the Alaska State Division of Homeland Security and the Federal Emergency Management Agency. Unalakleet LHMP -ii- 04/22/2008 Table of Contents Acknowledgements ..........................................................................................................ii List of Tables...................................................................................................................iv List of Figures..................................................................................................................iv List of Maps.....................................................................................................................iv Acronyms ........................................................................................................................ v Sample Resolution ..........................................................................................................vi Chapter 1. Planning Process and Methodology ............................................................. 1 Introduction 1 Plan Development ....................................................................................................... 1 Location ................................................................................................................... 1 Project Staff ............................................................................................................. 1 Plan Research.......................................................................................................... 2 Public Involvement................................................................................................... 3 Plan Implementation ................................................................................................ 6 Continuing Review and Monitoring Strategy ............................................................ 6 Continued Plan Development .................................................................................. 6 Continued Public Involvement.................................................................................. 7 Risk Assessment Methodology.................................................................................... 7 Vulnerability Assessment Methodology.................................................................... 9 Federal Requirement for Risk Assessment.............................................................. 9 Chapter 2: Community Profile ................................................................................... 11 Community Overview................................................................................................. 11 Community Assets..................................................................................................... 18 Community Resources .............................................................................................. 18 State Resources..................................................................................................... 21 Other Funding Sources and Resources ................................................................. 21 Local Resources .................................................................................................... 22 Chapter 3: Hazards ...................................................................................................... 28 DHS&EM Matrices..................................................................................................... 28 Hazard Vulnerability Assessment Matrices................................................................ 29 Section 1. Floods and Erosion .............................................................................. 33 Hazard Description and Characterization............................................................... 33 Local Flood and Erosion Hazard Identification....................................................... 34 Previous Occurrences of Flood and Erosion.......................................................... 35 Flood and Erosion Hazard Vulnerability ................................................................. 36 Flood and Erosion Mitigation Goals and Projects................................................... 38 Section 2. Severe Weather ................................................................................... 42 Hazard Description and Characterization............................................................... 42 Local Severe Weather Hazard Identification .......................................................... 43 Previous Occurrences of Severe Weather ............................................................. 44 Severe Weather Previous Occurrences of Hazard Vulnerability ............................ 45 Severe Weather Mitigation Goals and Projects...................................................... 45 Section 3. Wildland Fire ........................................................................................ 46 Unalakleet LHMP -iii- 04/22/2008 Hazard Description and Characterization............................................................... 46 Local Wildland Fire Hazard Identification ............................................................... 47 Previous Occurrences of Wildland Fire .................................................................. 48 Wildland Fire Hazard Vulnerability ......................................................................... 48 Wildland Fire Mitigation Goals and Projects........................................................... 48 Section 4. Description of Hazards Not Present in Unalakleet ............................... 49 Avalanche and Landslides ..................................................................................... 49 Earthquakes........................................................................................................... 49 Tsunamis and Seiches........................................................................................... 50 Chapter 4: Mitigation Strategy ................................................................................... 52 Benefit - Cost Review ................................................................................................ 52 Benefit-Cost Analysis................................................................................................. 54 Benefit – Costs Review Listing Table ........................................................................ 56 Mitigation Project Plan Table ..................................................................................... 59 Glossary of Terms......................................................................................................... 61 Bibliography .................................................................................................................. 69 List of Tables Table 1. Unalakleet Plans .............................................................................................. 6 Table 2. Continued Plan Development........................................................................... 7 Table 3. Federal Requirements.................................................................................... 10 Table 4. Community Information .................................................................................. 16 Table 5. Legal and Technical Capability....................................................................... 26 Table 6. Fiscal Capability ............................................................................................. 26 Table 7. Administrative and Technical Capability......................................................... 27 Table 8. Hazard Matrix................................................................................................. 28 Table 9. Previous Occurrences of Hazards 1978 – Present......................................... 28 Table 10. Unalakleet Asset and Vulnerability Matrix - Structures and Infrastructure.... 29 Table 11. Estimated Flood Damages (A) ..................................................................... 36 Table 12. Estimated Flood Damages (B) ..................................................................... 36 Table 13. Unalakleet Weather Summary...................................................................... 43 Table 14. Benefit Cost Review Listing.........................................................................