MANOKOTAK VILLAGE TRIBAL HAZARD MITIGATION PLAN [2019 – 2024] FINAL Revision 0 August 2019
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MANOKOTAK VILLAGE TRIBAL HAZARD MITIGATION PLAN [2019 – 2024] FINAL Revision 0 August 2019 Prepared for: Manokotak Village Council PO Box 169 Manokotak, Alaska 99628 Prepared by: 111 W. 16th Avenue, Third Floor Anchorage, Alaska 99501-5109 Phone (907) 563-0013 Fax (907) 563-6713 Bristol Project No. 32190013 Tribal Hazard Mitigation Plan [2019 – 2024] Manokotak Village TABLE OF CONTENTS SECTION PAGE ACRONYMS AND ABBREVIATIONS ................................................................................... v EXECUTIVE SUMMARY .................................................................................................... ES-1 1.0 INTRODUCTION ...............................................................................................................1 2.0 COMMUNITY DESCRIPTION .........................................................................................3 2.1 Location and Geography .............................................................................................3 2.2 Climate.........................................................................................................................3 2.3 History .........................................................................................................................3 2.4 Economy ......................................................................................................................4 2.5 Demographics ..............................................................................................................4 3.0 PLANNING PROCESS .......................................................................................................5 3.1 Planning Process .........................................................................................................5 3.2 Planning Team ............................................................................................................6 3.3 Public Involvement ....................................................................................................7 3.3.1 Other Communities, Tribal Agencies, and Regional Agencies Involved .......9 3.4 Incorporation of Existing Plans/Studies/Reports ....................................................10 3.5 Integration into Other Tribal Planning Processes ..................................................11 4.0 PLAN MAINTENANCE ...................................................................................................13 4.1 Monitoring ................................................................................................................13 4.2 Evaluating ..................................................................................................................13 4.3 Updating ....................................................................................................................14 4.4 Public Involvement in the Plan Maintenance Process ...........................................15 5.0 RISK ASSESSMENT..........................................................................................................17 5.1 Hazard Analysis ........................................................................................................17 5.1.1 Avalanche .........................................................................................................21 5.1.2 Drought .............................................................................................................22 5.1.3 Earthquake........................................................................................................23 5.1.4 Erosion ..............................................................................................................29 August 2019 i FINAL Rev. 0 Tribal Hazard Mitigation Plan [2019 – 2024] Manokotak Village 5.1.5 Extreme Cold .................................................................................................... 30 5.1.6 Flood ................................................................................................................. 32 5.1.7 Landslide .......................................................................................................... 33 5.1.8 Severe Wind ..................................................................................................... 34 5.1.9 Severe Winter Weather ................................................................................... 36 5.1.10 Subsidence ........................................................................................................ 38 5.1.11 Tsunami ............................................................................................................ 39 5.1.12 Volcano ............................................................................................................. 40 5.1.13 Wildfire ............................................................................................................ 42 5.2 Community Assets .................................................................................................... 46 5.2.1 People ............................................................................................................... 46 5.2.2 Economy ........................................................................................................... 47 5.2.3 Built Environment ........................................................................................... 47 5.2.4 Natural Environment ....................................................................................... 48 5.3 Risk Analysis ............................................................................................................. 48 5.4 Vulnerability ............................................................................................................. 59 6.0 MITIGATION STRATEGY .............................................................................................. 61 6.1 Pre-/Post-Disaster Hazard Management ................................................................. 61 6.2 Funding ..................................................................................................................... 63 6.2.1 Existing Funding Sources ................................................................................ 63 6.2.2 Potential Funding Sources ............................................................................... 63 6.3 Mitigation Goals........................................................................................................ 65 6.4 Potential Mitigation Actions .................................................................................... 65 6.5 Mitigation Action Plan ............................................................................................. 67 6.6 Implementing Action Plan into Other Planning Mechanisms .............................. 73 6.7 Reviewing Progress Goals ........................................................................................ 73 7.0 PLAN ASSURANCES AND ADOPTION ....................................................................... 75 8.0 REFERENCES ................................................................................................................... 77 August 2019 ii FINAL Rev. 0 Tribal Hazard Mitigation Plan [2019 – 2024] Manokotak Village TABLES Table 3-1: Hazard Mitigation Planning Team ......................................................................... 6 Table 3-2: Stakeholder Contacts............................................................................................... 9 Table 3-3: Existing Plans, Studies, and Reports Reviewed ................................................... 11 Table 4-1: Plan Maintenance Timeline ................................................................................. 15 Table 5-1: Location ................................................................................................................. 18 Table 5-2: Maximum Extent or Magnitude ........................................................................... 18 Table 5-3: Probability of Future Events................................................................................. 19 Table 5-4: Overall Impact ....................................................................................................... 19 Table 5-5: Significant Hazards in the Planning Area ............................................................ 20 Table 5-6: Top 10 Historic Earthquake Epicenters Closest to Community ......................... 27 Table 5-7: Top 10 Greatest Magnitude Historic Earthquakes near Community ................. 28 Table 5-8: Top 10 Most Recent Historic Earthquakes near Community ............................. 28 Table 5-9: Historical Extreme Cold Events ........................................................................... 31 Table 5-10: Historical Severe Wind Events ........................................................................... 36 Table 5-11: Historical Severe Winter Weather Events ........................................................ 38 Table 5-12: History of Wildfires ............................................................................................ 45 Table 5-13: Risks to Vulnerable Assets .................................................................................. 49 Table 6-1: Planning and Regulatory Tools ............................................................................ 61 Table 6-2: Administrative and Technical Capability ............................................................ 62 Table 6-3: Mitigation Goals ...................................................................................................