2011 National Floodproofing Conference

1. Floodproofing Methods that Work
in West Virginia
Joe Trimboli, MSc, CFM
Community Planner
Huntington District
17 March 2011
US Army Corps of Engineers
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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.
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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
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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
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5. Local Flood Proofing Programs
 NFPC Publication (2005)
 Proven approaches to reducing flood
damage
 Significant flood loss reduction
► Financial
► Technical
► Environmental
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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)
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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...
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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
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9. Extended Foundation
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10. Ring Wall
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11. Ring Wall
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12. Space Replacement
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13. Extended Foundation
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14. Extended Foundation
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15. Extended Foundation
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16. Extended Foundation
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17. Relocation
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18. Extended Foundation
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19. Extended Foundation
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20. Extended Foundation
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21. Most Used FRM WV
 Elevation / Wet Floodproofing
 Relocation
► Acquisition
► Move on property
► Space Replacement
 Dry Floodproofing
 Ring walls
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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”
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23. Opportunities
 Buy Up to Floodproofing
 Home Improvements allowed
► Paid by Homeowner
 Structurally unsound – cost comparison
► Leastexpensive
► Acquisition vs Comparable New Construction
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24. Program Evaluation
Elevation Relocation Levees and Dry Flood Wet Flood
Floodwalls Proofing Proofing
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25. Selection Factors
Site
Characteristics
Flood Building
Characteristics Characteristics
Location
Soil
Depth Foundation
Velocity Construction
Flash Condition
Debris
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26. Formulation Matrix
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27. Matrix Highlight
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28. Community Flood Proofing
Benefits
 Customer service
 Economics
 Comprehensive planning
 External impact
 The Community Rating System
 Post-flood mitigation funding
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29. National Plan
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30. Flood Risk Management Cycle
• Future Mitigation • Flood Fighting Prep
• Develop & Implement • State & Local Coord
Improvements • System Assessments &
• Modify Mitigation Inspection
Plan • Forecasting / Scenario
• Interim Risk Development
Reduction Measures
• Report Impacts
• Repair Damage
• Systems Performance
• Assess & Document
• Support Flood Fighting
• Identify Mitigation
• Emergency
Opportunities
Stabilization
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31. Summary
Organization and Team Work
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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/
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33. QUESTIONS?
SEAMLESS, CURRENT, and AUTOMATED
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