ASSUMPTION PARISH HAZARD MITIGATION PLAN I
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ASSUMPTION PARISH HAZARD MITIGATION PLAN i ASSUMPTION PARISH HAZARD MITIGATION PLAN ii ***This Page Left Intentionally Blank*** ASSUMPTION PARISH HAZARD MITIGATION PLAN iii ASSUMPTION PARISH HAZARD MITIGATION PLAN UPDATE Prepared for: Assumption Parish Prepared by: Stephenson Disaster Management Institute Ms. Alexa Andrews Ms. Lauren Stevens Mr. Joseph B. Harris Mr. Brant Mitchell Dr. Carol J. Friedland, P.E., Ph.D., C.F.M. Mr. Eric V. Rohli Louisiana State University - Business Education Complex Baton Rouge, LA 70803 March 2016 ASSUMPTION PARISH HAZARD MITIGATION PLAN iv ***This Page Left Intentionally Blank*** ASSUMPTION PARISH HAZARD MITIGATION PLAN v ACKNOWLEDGMENTS This 2015 Assumption Parish Hazard Mitigation Plan Update was coordinated by the Assumption Parish Hazard Mitigation Plan Update Steering Committee, in collaboration with the participating jurisdictions as well as community stakeholders and the general public. The participating jurisdictions are made up of the following communities: Unincorporated Assumption Parish Village of Napoleonville Special thanks is directed to all of those who assisted in contributing feedback and expertise on this document, especially the Assumption Parish Office of Homeland Security and Emergency Management. These combined efforts have made this project possible. The Assumption Parish Steering Committee consists of the following individuals, who are credited in the creation of this document: Anne Marsh AP OHSEP BJ Francis AP Waterworks Bethany Legendre OPH Region 3 Bobby Naquin AP Police Jury Brian Gros Labadieville Fire Dept. Bruce Prejean AP Sheriff’s Office Chris Boudreaux Lafourche Parish Christy Larose Heritage Manor Nursing Home Eric Deroche St. James Parish Gerald Richard Napoleonville Fire Dept. Ginger Rushing AP Waterworks Heidi Mattingly Dow Chemical Joey Comeaux AP School Board John Boudreaux AP OHSEP Karen Price DEQ Kayla Guerrero Region 3 DHH Kayte Landry AP OHSEP Keven Bergeron Boardwalk Pipeline Kim Beetz Met. Hospital Assoc. – LHA Kim Torres AP Police Jury Liz Templet AP Community Hospital Mercedes Bernard AP Police Jury Meshaun Blame Village of Napoleonville Nakeitha Mills APPJ – Road & Bridge Pam Roussel GOHSEP Ray Traigle AP Sheriff’s Office Richard Blanchard LA State Police Ron Animashaun Village of Napoleonville Teddy Crochet Acadian Ambulance Tracy Hebert Bayou Journal Newspaper Wayne Arboneaux AP Community Hospital The 2015 Assumption Parish Hazard Mitigation Plan Update was written by the Stephenson Disaster Management Institute, Louisiana State University. Further comments should be directed to the Assumption Parish Office of Homeland Security and Emergency Preparedness: Post Office Box 520, Napoleonville, LA, 70390. ASSUMPTION PARISH HAZARD MITIGATION PLAN vi Contents 1. Introduction ............................................................................................................................................ 1-1 Location, Demography, and Economy........................................................................................................ 1-2 Location .................................................................................................................................................. 1-2 Economy ................................................................................................................................................. 1-3 Hazard Mitigation ....................................................................................................................................... 1-4 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 ................................................................................................................................. 2-2 Probability of Future Hazard Events ........................................................................................................... 2-3 Inventory of Assets for the Entire Parish .................................................................................................... 2-4 Essential Facilities of the Parish.................................................................................................................. 2-5 Future Development Trends .................................................................................................................... 2-11 Future Hazard Impacts ............................................................................................................................. 2-12 Land Use ................................................................................................................................................... 2-12 Hazard Identification ................................................................................................................................ 2-14 Flooding ................................................................................................................................................ 2-14 Sinkholes ............................................................................................................................................... 2-29 Thunderstorms ..................................................................................................................................... 2-34 Tornadoes ............................................................................................................................................. 2-47 Tropical Cyclones .................................................................................................................................. 2-53 Winter Storms ...................................................................................................................................... 2-66 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.................................................................................................... 3-3 Education and Outreach ............................................................................................................................. 3-4 Flood Insurance and Community Rating System ........................................................................................ 3-5 NFIP Worksheets ........................................................................................................................................ 3-8 4. Mitigation Strategy ................................................................................................................................. 4-1 Introduction ................................................................................................................................................ 4-1 Goals ........................................................................................................................................................... 4-1 2015 Mitigation Actions and Update on Previous Plan Actions ................................................................. 4-2 ASSUMPTION PARISH HAZARD MITIGATION PLAN vii Assumption 2011 Hazard Mitigation Action Update .............................................................................. 4-3 Unincorporated Assumption New Mitigation Actions ........................................................................... 4-5 Village of Napoleonville - New Mitigation Actions ................................................................................. 4-8 Action Prioritization .................................................................................................................................. 4-10 Appendix A: Planning Process ............................................................................................................................ 1 Purpose ........................................................................................................................................................... 1 The Assumption Parish Hazard Mitigation Plan Update ................................................................................ 1 Planning .......................................................................................................................................................... 3 Coordination ................................................................................................................................................... 3 Neighboring Community, Local and Regional Planning Process Involvement ............................................... 3 Program Integration ......................................................................................................................................