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