Floodproofing Methods That Work In West Virginia


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2011 National Floodproofing Conference

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Floodproofing Methods That Work In West Virginia

  1. 1. Floodproofing Methods that Workin West VirginiaJoe Trimboli, MSc, CFMCommunity PlannerHuntington District17 March 2011US Army Corps of EngineersBUILDING STRONG®
  2. 2. NFRMP National Flood Risk Management Program Corps Program to integrate and synchronize USACE flood risk management programs and activities, both internally and with counterpart activities of the Department of Homeland Security, Federal Emergency Management Agency (FEMA), other Federal agencies, state organizations, and regional and local agencies. BUILDING STRONG®
  3. 3. Silver Jackets Continuous collaboration between state and Federal agencies to reduce flood risk and other natural disasters and to enhance response and recovery efforts State teams lead by State NFIP Coordinator (flexible structure) West Virginia Flood Risk Communication Taskforce BUILDING STRONG®
  4. 4. NFPC National Nonstructural Flood Proofing Committee (NFPC) Evolved from Floodplain Management Services Program (CORPS FPMS) Committee on Residential Flood Proofing (1978) Coordinates and provides direction to flood proofing activities BUILDING STRONG®
  5. 5. Local Flood Proofing Programs NFPC Publication (2005) Proven approaches to reducing flood damage Significant flood loss reduction ► Financial ► Technical ► Environmental BUILDING STRONG®
  6. 6. Government Programs FEMA Mitigation Assistance (FMA) Program ► Planning Grants ► Project Grants ► Management Cost Grants Corps of Engineer Authorities ► Flood Plain Management Services (FPMS) ► Planning Assistance to States (PAS) ► Special Studies (Congressional Add) ► Section 202 (Tug Fork / Levisa Fork) BUILDING STRONG®
  7. 7. Reduction Measures Emergency Measures ► Sandbagging, Flood Warning Systems... Structural Measures ► Levees, Dams, Channels... Relocation Measures ► Move, Purchase, Demolition... Modification Measures ► Building Modifications, Lot Enhancements... BUILDING STRONG®
  8. 8. WV Example – Wayne County Section 202 (Congressional Add) 33.5 miles of the main stem Tug Fork Protection - April 1977 flood reoccurrence 66 structures ► 39 floodproofed structures ► 27 voluntary floodplain acquisitions BUILDING STRONG®
  9. 9. Extended Foundation BUILDING STRONG®
  10. 10. Ring Wall BUILDING STRONG®
  11. 11. Ring Wall BUILDING STRONG®
  12. 12. Space Replacement BUILDING STRONG®
  13. 13. Extended Foundation BUILDING STRONG®
  14. 14. Extended Foundation BUILDING STRONG®
  15. 15. Extended Foundation BUILDING STRONG®
  16. 16. Extended Foundation BUILDING STRONG®
  17. 17. Relocation BUILDING STRONG®
  18. 18. Extended Foundation BUILDING STRONG®
  19. 19. Extended Foundation BUILDING STRONG®
  20. 20. Extended Foundation BUILDING STRONG®
  21. 21. Most Used FRM WV Elevation / Wet Floodproofing Relocation ► Acquisition ► Move on property ► Space Replacement Dry Floodproofing Ring walls BUILDING STRONG®
  22. 22. Restrictions No improvements Work must meet local code Porches (no matter material) are replaced with Treated Lumber No damageable materials below flood protection level Space replacement only includes “Living Space” BUILDING STRONG®
  23. 23. Opportunities Buy Up to Floodproofing Home Improvements allowed ► Paid by Homeowner Structurally unsound – cost comparison ► Leastexpensive ► Acquisition vs Comparable New Construction BUILDING STRONG®
  24. 24. Program EvaluationElevation Relocation Levees and Dry Flood Wet Flood Floodwalls Proofing Proofing BUILDING STRONG®
  25. 25. Selection Factors Site CharacteristicsFlood BuildingCharacteristics Characteristics Location Soil Depth Foundation Velocity Construction Flash Condition Debris BUILDING STRONG®
  26. 26. Formulation Matrix BUILDING STRONG®
  27. 27. Matrix Highlight BUILDING STRONG®
  28. 28. Community Flood Proofing Benefits Customer service Economics Comprehensive planning External impact The Community Rating System Post-flood mitigation funding BUILDING STRONG®
  29. 29. National Plan BUILDING STRONG®
  30. 30. Flood Risk Management Cycle• Future Mitigation • Flood Fighting Prep• Develop & Implement • State & Local CoordImprovements • System Assessments &• Modify Mitigation InspectionPlan • Forecasting / Scenario• Interim Risk DevelopmentReduction Measures • Report Impacts• Repair Damage • Systems Performance• Assess & Document • Support Flood Fighting• Identify Mitigation • EmergencyOpportunities Stabilization BUILDING STRONG®
  31. 31. SummaryOrganization and Team Work BUILDING STRONG®
  32. 32. References National Flood Risk Management Program (NFRMP)  http://www.nfrmp.us/ Silver Jackets  http://www.nfrmp.us/state/ National Nonstructural Flood Proofing Committee (NFPC)  http://www.nwo.usace.army.mil/nfpc/ Local Flood Proofing Measures NFPC 2005  http://www.nwo.usace.army.mil/nfpc/Local_FP_Programs_Fe bruary_2005.pdf Flood Damage Reduction Matrix NFPC 2007  http://www.nwo.usace.army.mil/nfpc/NFPC_Measures_Matrix .pdf Huntington District  http://www.lrh.usace.army.mil/ BUILDING STRONG®