FEMA P 2077MitigationAssessmentTeamReport HurricaneMichaelinFlorida 2020
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FEMA P-2077, Mitigation Assessment Team Report Hurricane Michael in Florida
| Published By | Publication Date | Number of Pages |
| FEMA | 2020 | 314 |
None
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | Front Cover |
| 2 | Title Page |
| 3 | Publication Notes |
| 4 | Members of the Mitigation Assessment Team |
| 5 | Executive Summary |
| 6 | Mitigation Assessment Team Deployment |
| 7 | Summary of Damage Observed by the MAT |
| 8 | MAT Recommendations |
| 15 | Contents |
| 19 | List of Figures |
| 28 | List of Tables |
| 29 | Acronyms and Abbreviations |
| 32 | 1. Introduction |
| 34 | 1.1 Organization of Report |
| 35 | 1.2 Hurricane Michael: The Event |
| 37 | 1.3 Hurricane Michael: The Impact |
| 38 | 1.3.1 Coastal Storm Surge Flooding |
| 42 | 1.3.2 Rainfall |
| 43 | 1.3.3 Wind |
| 45 | 1.3.4 Tornadoes |
| 46 | 1.4 The FEMA Mitigation Assessment Team |
| 47 | 1.4.1 Team Composition 1.4.2 Involvement of State and Local Agencies 1.4.3 Pre-MAT Deployment and Site Selection |
| 49 | 1.4.4 Hurricane Michael MAT Deployment and Mission |
| 52 | 1.4.5 Role of Regional Response Coordination Center |
| 54 | 2. Building Codes, Standards, and Regulations |
| 55 | 2.1 Building Codes in Florida |
| 56 | 2.1.1 Florida Building Commission |
| 57 | 2.1.2 Local Amendments 2.1.3 Building Department Administration |
| 58 | 2.2 Floodplain Management in Florida |
| 59 | 2.2.1 History of Flood Provisions in the Florida Building Code |
| 60 | 2.2.2 Flood Provisions in the Florida Building Code |
| 62 | 2.2.3 Local Amendments to the Flood Provisions of the FBC |
| 63 | 2.2.4 Floodplain Management Ordinances Coordinated with the FBC |
| 64 | 2.3 Wind Provisions of the Florida Building Code |
| 65 | 2.3.1 Wind Loads and Wind Design in the FBC |
| 72 | 2.3.2 Florida-Specific Amendments for Wind and Water Intrusion |
| 74 | 2.4 State Emergency Shelter Operations in Florida 2.4.1 State Emergency Shelter Mandate 2.4.2 Enhanced Hurricane Protection Areas in the Florida Building Code |
| 75 | 2.4.3 State Emergency Shelter Plan Options: EHPA or Retrofit |
| 76 | 3. Coastal Flood-Related Observations |
| 77 | 3.1 General Observations by County 3.1.1 Bay County |
| 78 | 3.1.1.1 Panama City Beach and City of Callaway |
| 79 | 3.1.1.2 Mexico Beach |
| 87 | 3.1.2 Gulf County |
| 89 | 3.1.2.1 Beacon Hill |
| 90 | 3.1.2.2 Port St. Joe |
| 92 | 3.1.2.3 Barrier Spit / Cape San Blas |
| 93 | 3.1.3 Franklin County 3.1.3.1 Apalachicola |
| 94 | 3.1.3.2 St. George Island |
| 95 | 3.1.4 Wakulla County 3.1.4.1 Shell Point |
| 96 | 3.2 Comparison of Lowest Floor Elevation across Structures |
| 97 | 3.2.1 Resistance to Buoyancy Load (Flotation) |
| 99 | 3.2.2 Elevated Residences |
| 101 | 3.2.3 Freeboard in New Construction |
| 102 | 3.2.4 Freeboard in Building Additions |
| 103 | 3.2.5 Elevation on Concrete Pile with Breakaway Wall 3.3 Performance of Concrete and Wooden Pile Foundations |
| 104 | 3.3.1 Concrete Pile Performance |
| 106 | 3.3.2 Wooden Pile Performance |
| 107 | 3.4 Observations Pertaining to Floodplain Management Practices |
| 109 | 3.4.1 Flood Damage Data Analysis and Trends 3.4.1.1 NFIP Claims Data Overview |
| 111 | 3.4.1.2 NFIP Claims Data by Community |
| 112 | 3.4.1.3 Community-Specific NFIP Claims Data |
| 116 | 3.4.2 Importance of Siting to Potential Damage |
| 117 | 3.4.2.1 Building Siting Within Parcel Boundaries |
| 119 | 3.4.2.2 Development Proximity to Shoreline |
| 123 | 4. Wind-Related Observations: Residential |
| 124 | 4.1 Structural Systems / Main Wind-Force Resisting Systems |
| 125 | 4.1.1 Structural Performance of Pre-FBC and Post-FBC Buildings |
| 132 | 4.1.2 Structural Failures of Post-FBC Buildings |
| 135 | 4.2 Building Envelope |
| 137 | 4.2.1 Roof Coverings |
| 138 | 4.2.1.1 Asphalt Shingles |
| 142 | 4.2.1.2 Metal Panel Roof Systems |
| 144 | 4.2.1.3 Concrete or Clay Roof Tile 4.2.1.4 Roof Re-Covers (Roof-Overs) and FBC Mitigation Requirements |
| 146 | 4.2.1.5 Roof Underlayment |
| 148 | 4.2.2 Soffits 4.2.2.1 Soffit Installation |
| 150 | 4.2.2.2 Examples of Soffit Failures |
| 153 | 4.2.3 Exterior Wall Coverings 4.2.3.1 Vinyl Siding |
| 157 | 4.2.3.2 Fiber-Cement Siding |
| 160 | 4.2.4 Windows and Doors |
| 161 | 4.2.4.1 Glazed Openings |
| 165 | 4.2.4.2 Sectional (Garage) Doors |
| 166 | 5. Wind-Related Observations: Non-Residential |
| 167 | 5.1 Wind Retrofit Performance |
| 169 | 5.1.1 Panama City Police Department |
| 174 | 5.1.2 University of Florida Institute of Food and Agricultural Sciences Bay County Extension |
| 182 | 5.1.3 Tom P. Haney Technical Center |
| 189 | 5.2 Building Performance by Building Use 5.2.1 Commercial 5.2.1.1 Dollar General |
| 192 | 5.2.1.2 Shopping Center |
| 193 | 5.2.1.3 Condominium No. 1 |
| 195 | 5.2.1.4 Bay County Tax Collector Office |
| 196 | 5.2.1.5 Condominium No. 2 |
| 197 | 5.2.1.6 Bank |
| 199 | 5.2.1.7 Office Building |
| 200 | 5.2.2 Critical Facilities – Emergency Operations Centers 5.2.2.1 Bay County Emergency Operations Center and Gulf Coast State College Public Safety Building |
| 203 | 5.2.2.2 Jackson County Emergency Operations Center |
| 209 | 5.2.3 Critical Facilities – Hurricane Evacuation Shelters |
| 211 | 5.2.3.1 Blountstown High School |
| 214 | 5.2.3.2 Altha Public School |
| 217 | 5.2.3.3 Rutherford High School |
| 223 | 5.2.3.4 Merritt Brown Middle School |
| 226 | 5.2.4 Critical Facilities – First Responder Facilities 5.2.4.1 Lynn Haven Police Administration |
| 231 | 5.2.5 Critical Facilities – Hospitals and Nursing Homes 5.2.5.1 Bay Medical Sacred Heart Health System |
| 246 | 5.2.5.2 Encompass Health Rehabilitation Hospital of Panama City |
| 249 | 5.2.5.3 Jackson Hospital |
| 252 | 5.2.6 Critical Facilities – Schools 5.2.6.1 Tyndall Elementary School |
| 257 | 5.2.7 Critical Facilities – Other Types of Buildings 5.2.7.1 Bay County Administration |
| 260 | 5.2.7.2 Bay County Courthouse |
| 267 | 6. Conclusions and Recommendations |
| 268 | 6.1 Overview of Conclusions and Recommendations |
| 269 | 6.2 General Conclusions and Recommendations |
| 270 | 6.3 Flood-Related Building Codes, Standards, and Regulations Conclusions and Recommendations |
| 272 | 6.4 Wind-Related Building Codes, Standards, and Regulations Conclusions and Recommendations |
| 275 | 6.5 Flood-Related Conclusions and Recommendations |
| 279 | 6.6 Wind-Related Conclusions and Recommendations 6.6.1 Residential Wind |
| 283 | 6.6.2 Non-residential Wind |
| 291 | 6.7 Crosswalk/Matrix of Conclusions and Recommendations with MAT Observations |
| 303 | Appendix A. Acknowledgments |
| 307 | Appendix B. References |
| 313 | Appendix C. Recovery Advisories |
| 314 | Back Cover |
