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Ascension Parish Hazard Mitigation Plan

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Ascension Parish Hazard Mitigation Plan ST. BERNARD PARISH HAZARD MITIGATION PLAN i ST. BERNARD PARISH HAZARD MITIGATION PLAN i ***This Page Intentionally Left Blank*** ST. BERNARD PARISH HAZARD MITIGATION PLAN ii ST. BERNARD PARISH HAZARD MITIGATION PLAN UPDATE Prepared for: St. Bernard Parish Prepared by: Stephenson Disaster Management Institute Mr. Brant Mitchell Ms. Alexa Andrews Ms. Lauren Stevens Mr. Joseph Harris Louisiana State University - Business Education Complex Baton Rouge, LA 70803 ST. BERNARD PARISH HAZARD MITIGATION PLAN iii ***This Page Left Intentionally Blank*** ST. BERNARD PARISH HAZARD MITIGATION PLAN iv ACKNOWLEDGMENTS This 2015 St. Bernard Parish Hazard Mitigation Plan Update was coordinated by the St. Bernard Parish Hazard Mitigation Plan Update Steering Committee, in collaboration with community stakeholders and the general public. Special thanks is directed to all of those who assisted in contributing feedback and expertise on this document, especially the St. Bernard Parish Office of Homeland Security and Emergency Management. These combined efforts have made this project possible. The Parish Steering Committee consists of the following individuals, who are credited in the creation of this document: David Peralta St. Bernard Parish Mike Hunnicutt St. Bernard Parish John Rahaim, Jr. St. Bernard Parish Jason Stopa St. Bernard Parish Hillary Nunez St. Bernard Parish Thomas Stone St. Bernard Parish Jimmy Pohlmann SBP Sheriff’s Office Guy Lagaiast Plaquemines Parish Aaron Miller City of New Orleans Darryl Delatte GOHSEP Jack Merrill Valero Patrick Trahan ExxonMobil Doris Vortier SBP School Board George Cavignac SBP Council Jaylynn Bergeron Turner SBP Assessor Nick Cali LBBLD Chris Hiestand ATMOS Toni Green Entergy Jerry Graves, Sr. SBP Port Paul Bartlett Domino Sugar William McGoey SBP Legal Charlie Lindell SBP Hospital The 2015 St. Bernard Parish Hazard Mitigation Plan Update was written by the Stephenson Disaster Management Institute, Louisiana State University. Further comments should be directed to the St. Bernard Parish Office of Homeland Security and Emergency Preparedness: 8201 W. Judge Perez Dr., Chalmette, LA 70043 (504)278-4268, [email protected] . ST. BERNARD PARISH HAZARD MITIGATION PLAN v Contents 1 Introduction ....................................................................................................................................... 1-1 Location, Demography and Economy .................................................................................................... 1-2 Population .......................................................................................................................................... 1-3 Transportation ................................................................................................................................... 1-4 Hazard Mitigation .................................................................................................................................. 1-5 General Strategy .................................................................................................................................... 1-6 2015 Plan Update ................................................................................................................................... 1-7 2 Hazard Identification and Parish-Wide Risk Assessment ................................................................... 2-1 Prevalent Hazards to the Community .................................................................................................... 2-1 Previous Occurrences ............................................................................................................................ 2-3 Probability of Future Hazard Events ...................................................................................................... 2-4 Inventory of Assets for the Entire Parish ............................................................................................... 2-4 Essential Facilities of the Parish. ............................................................................................................ 2-6 Future Development Trends ................................................................................................................ 2-11 Future Hazard Impacts ......................................................................................................................... 2-12 Land Use ............................................................................................................................................... 2-12 Hazard Identification ............................................................................................................................ 2-14 Flooding ............................................................................................................................................ 2-14 Land Subsidence/Saltwater Intrusion .............................................................................................. 2-27 Sinkholes .......................................................................................................................................... 2-36 Thunderstorms ................................................................................................................................. 2-39 Tornadoes ........................................................................................................................................ 2-52 Tropical Cyclones ............................................................................................................................. 2-59 3 Capability Assessment ....................................................................................................................... 3-1 Policies, Plans and Programs ................................................................................................................. 3-1 Building Codes, Permitting, Land Use Planning and Ordinances ....................................................... 3-2 Administration, Technical, and Financial ............................................................................................... 3-2 Education and Outreach ........................................................................................................................ 3-3 Flood Insurance and Community Rating System ................................................................................... 3-4 NFIP Worksheets .................................................................................................................................... 3-8 4 Mitigation Strategy ............................................................................................................................ 4-1 Introduction ........................................................................................................................................... 4-1 Goals ...................................................................................................................................................... 4-1 ST. BERNARD PARISH HAZARD MITIGATION PLAN vi 2015 Mitigation Actions and Update on Previous Plan Actions ............................................................ 4-2 St. Bernard Parish Mitigation Actions ................................................................................................ 4-3 St. Bernard Parish Mitigation Action Update ..................................................................................... 4-9 Action Prioritization ............................................................................................................................. 4-10 Appendix A: Planning Process ................................................................................................................... A-1 Purpose ................................................................................................................................................. A-1 The St. Bernard Parish Hazard Mitigation Plan Update ........................................................................ A-1 Planning ................................................................................................................................................ A-3 Coordination ......................................................................................................................................... A-3 Neighboring Community, Local and Regional Planning Process Involvement ..................................... A-4 Program integration .............................................................................................................................. A-7 Meeting Documentation and Public Outreach Activities ..................................................................... A-8 Meeting #1: Hazard Mitigation Plan Update Kick-Off....................................................................... A-8 Meeting #3 Risk Assessment Overview ............................................................................................ A-9 Meeting #4: Public Meeting ............................................................................................................ A-10 Outreach Activity #1: Public Opinion Survey .................................................................................. A-11 Outreach Activity #2: Incident Questionnaire ................................................................................ A-11 Outreach Activity #3 Mapping Activities........................................................................................
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