Hazard Mitigation Plan
Total Page:16
File Type:pdf, Size:1020Kb
City of Forest Hills, Tennessee Multi-Hazard Mitigation Plan Prepared by AMEC Environment and Infrastructure Hazard Mitigation and Emergency Management Program Nashville, Tennessee DRAFT City of Forest Hills, Tennessee Multi-Hazard Mitigation Plan DRAFT Prepared by AMEC Environment & Infrastructure Hazard Mitigation and Emergency Management Program Nashville, Tennessee EXECUTIVE SUMMARY The purpose of natural hazards mitigation is to reduce or eliminate long-term risk to people and property from natural hazards. The City of Forest Hills developed this multi-hazard mitigation plan to reduce future losses to the City resulting from natural hazards. The plan was prepared pursuant to the requirements of the Disaster Mitigation Act of 2000 and to achieve eligibility for the Federal Emergency Management Agency (FEMA) Hazard Mitigation Assistance (HMA) programs. The City’s planning process followed a methodology prescribed by FEMA, which began with the formation of a Hazard Mitigation Planning Committee (HMPC) comprised of key stakeholders from the City of Forest Hill, in addition to local, state and federal agencies. The HMPC conducted a risk assessment that identified and profiled hazards that pose a risk to the City of Forest Hills, assessed the City’s vulnerability to these hazards, and examined the capabilities in place to mitigate them. The City is vulnerable to several hazards that are identified, profiled, and analyzed in this plan. Thunderstorms (hail/high winds/lightning), tornadoes, and winter storms are among the hazards that can have a significant impact on the City. Based upon the risk assessment, the HMPC identified goals and objectives for reducing risk to natural hazards. The goals of this multi-hazard mitigation plan are to: Goal 1: Reduce the risk of natural hazards to the people, property, and environment of the City of Forest Hills Goal 2: Improve the capabilities of the City of Forest Hills to mitigate natural hazards and reduce exposure Goal 3: Promote effective training and educational opportunities regarding natural hazards and risk Goal 4: Implement the mitigation actions identified in the Local Hazard Mitigation Plan To meet identified goals and objectives, the plan recommends 15 mitigation actions, which are summarized in the table on the following page. The HMPC also developed an implementation plan for each action, which identifies priority level, background information, ideas for implementation, responsible agency, timeline, cost estimate, potential funding sources, and more. The multi-hazard mitigation plan has been formally adopted by the City of Forest Hills Board of Commissioners and will be updated within a five-year timeframe. The City of Forest Hills, Tennessee i Multi-Hazard Mitigation Plan DRAFT Mitigation Action Matrix HMPC Action Goals Addressed Hazards Addressed Priority 1. Publish information on the availability of severe weather alerts through Severe Weather; new and innovative ways, such as text messaging, email, and mobile- High Goals 1, 2, 3 Flood enabled webpages. 2. Develop a comprehensive public education program for the natural High Goals 1, 3 Multi-Hazard hazards and risk identified in the Local Hazard Mitigation Plan. 3. Publish information on streets currently designated as priority for snow Winter Storms; High Goals 1, 3 removal and evacuation. Landslides 4. Coordinate with Metropolitan-Nashville Davidson County Office of Emergency Management (OEM) for inclusion of the City of Forest Hills High Goals 1, 2 Multi-Hazard in the Emergency Operations Plan 5. Identify and prioritize, as applicable, capital improvement projects to High Goals 1, 4 Flood address stormwater infrastructure deficiencies and/or problem areas. 6. Develop sheltering plan for severe weather hazards through coordination with OEM and Red Cross, including capability of new City High Goals 1, 2 Multi-Hazard Hall to serve as shelter 7. Update vulnerability assessment for breach of Radnor Lake dam based upon the inundation profile in the USACE 1989 study and updated Medium Goals 1, 2 Dam Failure topography and parcel information for the City of Forest Hills. 8. Identify areas not currently within storm siren coverage and potential Medium Goals,1, 2 Severe Weather locations for additional sirens. 9. Strengthen communication with neighboring communities Medium Goals 1, 2 Multi-Hazard 10. Implement contingency communications plan Low Goals 1, 2 Multi-Hazard 11. Promote safe rooms for individual residences Low Goals 1, 3 Severe Weather The City of Forest Hills, Tennessee ii Multi-Hazard Mitigation Plan DRAFT HMPC Action Goals Addressed Hazards Addressed Priority 12. Implement and enforce hillside protection component of zoning Low Goals 1, 4 Landslides ordinance 13. Participate in the floodplain map modernization process with Low Goals 1, 2, 4 Flood Metropolitan Nashville-Davidson County 14. Distribute National Flood Insurance Program information Low Goals 1, 3 Flood 15. Coordinate annual meetings of the City of Forest Hills Hazard Mitigation Planning Committee to monitor, evaluate, and update the multi-hazard Low Goal 4 Multi-Hazard mitigation plan The City of Forest Hills, Tennessee iii Multi-Hazard Mitigation Plan DRAFT TABLE OF CONTENTS Chapters 1 Introduction and Planning Process ................................................... 1.1 1.1 Purpose ............................................................................................................................................... 1.1 1.2 Background and Scope ..................................................................................................................... 1.1 1.3 The 10-Step Planning Process ......................................................................................................... 1.2 1.3.1 Phase 1: Planning Process ....................................................................................................... 1.4 1.3.2 Phase 2: Risk Assessment ....................................................................................................... 1.7 1.3.3 Phase 3: Mitigation Strategy...................................................................................................... 1.7 1.3.4 Phase 4: Plan Maintenance....................................................................................................... 1.8 2 Community Profile .............................................................................. 2.1 2.1 City of Forest Hills Planning Area Profile ........................................................................................ 2.1 2.1.1 Geography and Topography...................................................................................................... 2.1 2.1.2 Climate ....................................................................................................................................... 2.1 2.1.3 Population/Demographics ......................................................................................................... 2.3 2.1.4 History ........................................................................................................................................ 2.3 2.1.5 Economy/Industry ...................................................................................................................... 2.4 2.1.6 Agriculture.................................................................................................................................. 2.5 2.2 Capabilities Summary........................................................................................................................ 2.5 3 Risk Assessment ................................................................................ 3.1 3.1 Hazard Identification .......................................................................................................................... 3.2 3.1.1 Methodology ............................................................................................................................... 3.2 3.1.2 Disaster Declaration History ....................................................................................................... 3.3 3.2 Hazard Profiles ................................................................................................................................... 3.6 3.2.1 Methodology ............................................................................................................................... 3.6 3.2.2 Dam Failure ................................................................................................................................ 3.8 3.2.3 Drought ..................................................................................................................................... 3.10 3.2.4 Earthquake ............................................................................................................................... 3.14 3.2.5 Extreme Temperatures ............................................................................................................. 3.21 3.2.6 Flood ......................................................................................................................................... 3.24 3.2.7 Landslide .................................................................................................................................. 3.27 3.2.8 Land Subsidence - Sinkholes ................................................................................................... 3.30 3.2.9 Thunderstorms (hail/high winds/lightning) ...............................................................................