Download - National Nonstructural/ Flood Proofing Committee National Nonstructural/ Flood Proofing Committee
National Nonstructural/Flood Proofing Committee
National Nonstructural/Flood Proofing Committee
Nonstructural Measures for Flood Risk Management and Policy, Guidance, and Law
Nonstructural Measures for Flood Risk Management and Policy, Guidance, and Law
6 August 2009
Buffalo DistrictPlanning Conference
Kenneth Zwickl, HQLarry Buss, Omaha DistrictGene Barr, Huntington DistrictClark Frentzen, South Pacific DivisionJoseph Remondini, Tulsa DistrictStuart Davis, Institute for Water ResearchRandall Behm, Omaha DistrictMark Harberg, Fort Worth District Kim Gavigan, Los Angeles DistrictSteve O’Leary, Huntington District Keven Lovetro, New Orleans DistrictCarol Holloway, Institute for Water Research
Kenneth Zwickl, HQLarry Buss, Omaha DistrictGene Barr, Huntington DistrictClark Frentzen, South Pacific DivisionJoseph Remondini, Tulsa DistrictStuart Davis, Institute for Water ResearchRandall Behm, Omaha DistrictMark Harberg, Fort Worth District Kim Gavigan, Los Angeles DistrictSteve O’Leary, Huntington District Keven Lovetro, New Orleans DistrictCarol Holloway, Institute for Water Research
MissionMissionFlood Proofing
Nonstructural
Flood Proofing
Nonstructural
DefinitionsDefinitions
Nonstructural
Structural
National Nonstructural Flood Proofing Committee
National Nonstructural Flood Proofing Committee
Nonstructural Mitigation Measures
Nonstructural Mitigation Measures
Nonstructural Mitigation MeasuresNonstructural Mitigation Measures
Elevation
Relocation
Floodwalls, Levees & Berms
Buyout/Acquisition
Dry Flood Proofing
Wet Flood Proofing
Flooding Warning/Preparedness
National Flood Insurance Program
Elevation
Relocation
Floodwalls, Levees & Berms
Buyout/Acquisition
Dry Flood Proofing
Wet Flood Proofing
Flooding Warning/Preparedness
National Flood Insurance Program
Elevating on Extended Foundation Walls
Elevating on Extended Foundation Walls
Elevating on Extended Foundation Walls
Elevating on Extended Foundation Walls
Elevating on Extended Foundation Walls
Elevating on Extended Foundation Walls
Elevating on FillElevating on Fill
Elevating on FillElevating on Fill
Elevating on Piers, Posts, Piles... Elevating on Piers, Posts, Piles...
… or Columns… or Columns
Elevation on Piers, Posts, Piles, or ColumnsElevation on Piers, Posts, Piles, or Columns
Piers
Piers
PilesPiles ColumnsColumns
PostsPosts
Nonstructural Mitigation MeasuresNonstructural Mitigation Measures
Elevation
Relocation
Floodwalls, Levees and Berms
Buyout/Acquisition
Dry Flood Proofing
Wet Flood Proofing
Flooding Warning/Preparedness
National Flood Insurance Program
Elevation
Relocation
Floodwalls, Levees and Berms
Buyout/Acquisition
Dry Flood Proofing
Wet Flood Proofing
Flooding Warning/Preparedness
National Flood Insurance Program
Relocation Process Relocation Process
Evacuate temporary roadway
Attach structure to trailer
Transport structure to new site
Evacuate temporary roadway
Attach structure to trailer
Transport structure to new site
Moving the StructureMoving the StructureMoving the StructureMoving the Structure
Relocation Process Relocation Process
Demolish and remove foundation and pavement
Disconnect and remove all utilities
Grading and site stabilization
Demolish and remove foundation and pavement
Disconnect and remove all utilities
Grading and site stabilization
Restoration of Old SiteRestoration of Old SiteRestoration of Old SiteRestoration of Old Site
Nonstructural Mitigation MeasuresNonstructural Mitigation Measures
Elevation
Relocation
Floodwalls, Levees and Berms
Buyout/Acquisition
Dry Flood Proofing
Wet Flood Proofing
Flooding Warning/Preparedness
National Flood Insurance Program
Elevation
Relocation
Floodwalls, Levees and Berms
Buyout/Acquisition
Dry Flood Proofing
Wet Flood Proofing
Flooding Warning/Preparedness
National Flood Insurance Program
Construction BarriersBerms, Levees and
Floodwalls
Construction BarriersBerms, Levees and
Floodwalls
Sump and pump for internal drainage
Sump and pump for internal drainage
FloodwallFloodwall
Berm or Levee
Berm or Levee
One-way valveOne-way valve
SewerSewer
Three Foot Earthen LeveeThree Foot Earthen Levee
Flood Protection with FloodwallsFlood Protection with Floodwalls
FloodwallFloodwall
Nonstructural Mitigation MeasuresNonstructural Mitigation Measures Elevation
Relocation
Floodwalls, Levees and Berms
Buyout/Acquisition
Dry Flood Proofing
Wet Flood Proofing
Flooding Warning/Preparedness
National Flood Insurance Program
Elevation
Relocation
Floodwalls, Levees and Berms
Buyout/Acquisition
Dry Flood Proofing
Wet Flood Proofing
Flooding Warning/Preparedness
National Flood Insurance Program
Basic AcquisitionBasic Acquisition
Acquire land and structures
Demolish structures
Easiest type of acquisition
Acquire land and structures
Demolish structures
Easiest type of acquisition
Nonstructural Mitigation MeasuresNonstructural Mitigation Measures
Elevation
Relocation
Floodwalls, Levees and Berms
Buyout/Acquisition
Dry Flood Proofing
Wet Flood Proofing
Flooding Warning/Preparedness
National Flood Insurance Program
Elevation
Relocation
Floodwalls, Levees and Berms
Buyout/Acquisition
Dry Flood Proofing
Wet Flood Proofing
Flooding Warning/Preparedness
National Flood Insurance Program
One-Way ValveOne-Way Valve
Dry FloodproofingDry FloodproofingMaximum ProtectionLevel is Three Feet
Maximum ProtectionLevel is Three Feet
Flood Proofed WallsFlood Proofed Walls
Closures for OpeningsClosures for Openings
SewerSewer
Existing footing
Existing footing Drill and grout
reinforced connection to existing footing
Drill and grout reinforced connection to existing footing
Drain to sump pump with backup power sourceDrain to sump pump with backup power source
Add concrete footing
Add concrete footing
WaterproofingWaterproofing
New BrickNew Brick
CapCap
Existing brick veneerExisting brick veneer SheathingSheathing
Wood frame or CMU block wallWood frame or CMU block wall
Metal fasteners tie in new brick to old brick
Metal fasteners tie in new brick to old brick
Dry Flood Proofing MethodsDry Flood Proofing Methods
SealantSealant
Waterproof SealantWaterproof Sealant
Dry Flood Proofing MethodsDry Flood Proofing Methods
VeneerVeneer
SealantSealant
Waterproof SealantWaterproof Sealant
Baseboard
Baseboard
TrenchTrench
Impervious MembraneImpervious Membrane
2 feet of water in back of house2 feet of water in back of house
Nonstructural Mitigation MeasuresNonstructural Mitigation Measures
Elevation
Relocation
Floodwalls, Levees and Berms
Buyout/Acquisition
Dry Flood Proofing
Wet Flood Proofing
Flooding Warning/Preparedness
National Flood Insurance Program
Elevation
Relocation
Floodwalls, Levees and Berms
Buyout/Acquisition
Dry Flood Proofing
Wet Flood Proofing
Flooding Warning/Preparedness
National Flood Insurance Program
Wet Flood ProofingWet Flood Proofing
Opening to LetWater In
Opening to LetWater In
Furnace and UtilitiesRelocated
Furnace and UtilitiesRelocated
Appliances Moved or Wrappedin Waterproof Bags
Appliances Moved or Wrappedin Waterproof Bags
Elevate Utilities
Elevate Utilities
Wet Flood ProofingWet Flood Proofing
Wet Flood ProofingWet Flood Proofing Elevate Utilities Elevate Utilities
Wet Flood ProofingWet Flood Proofing
LouvreLouvre
Let Water InLet Water In
Nonstructural Mitigation MeasuresNonstructural Mitigation Measures
Elevation
Relocation
Floodwalls, Levees and Berms
Buyout/Acquisition
Dry Flood Proofing
Wet Flood Proofing
Flooding Warning/Preparedness
National Flood Insurance Program
Elevation
Relocation
Floodwalls, Levees and Berms
Buyout/Acquisition
Dry Flood Proofing
Wet Flood Proofing
Flooding Warning/Preparedness
National Flood Insurance Program
Flood Warning/Preparedness Components
Flood Warning/Preparedness Components
Flood Threat Recognition System
Warning Dissemination
Emergency Response
Post-Flood Recovery
Continued Plan Management
Flood Threat Recognition System
Warning Dissemination
Emergency Response
Post-Flood Recovery
Continued Plan Management
Flood Warning/Preparedness ComponentsFlood Warning/Preparedness Components
Collection of information
Transmission of Information
Receipt of information
Organization/Display of information
Prediction or timing and magnitude of flood event
Collection of information
Transmission of Information
Receipt of information
Organization/Display of information
Prediction or timing and magnitude of flood event
Flood Threat Recognition SystemFlood Threat Recognition System
Determine affected areas
Identify affected parties
Prepare warning message
Distribute warning message
Determine affected areas
Identify affected parties
Prepare warning message
Distribute warning message
Warning DisseminationWarning DisseminationFlood Warning/Preparedness ComponentsFlood Warning/Preparedness Components
Temporary evacuation Search and rescue Mass care
center operations
Public property protection
Flood fight Maintenance of vital services
Temporary evacuation Search and rescue Mass care
center operations
Public property protection
Flood fight Maintenance of vital services
Emergency ResponseEmergency ResponseFlood Warning/Preparedness ComponentsFlood Warning/Preparedness Components
Evacuee return
Debris clearance
Return of services
Damage assessment
Provisions for assistance
Evacuee return
Debris clearance
Return of services
Damage assessment
Provisions for assistance
Post-Flood RecoveryPost-Flood RecoveryFlood Warning/Preparedness ComponentsFlood Warning/Preparedness Components
Public Awareness/Education Programs
O&M equipment
Periodic drills
Update plan
Public Awareness/Education Programs
O&M equipment
Periodic drills
Update plan
Continued Plan ManagementContinued Plan ManagementFlood Warning/Preparedness ComponentsFlood Warning/Preparedness Components
Flood Warning SystemFlood Warning System
AlertAlert
Remote rain and stage gages
Transmit information
Base station computer
Process information
Automated threatened area notification (most advance systems)
Remote rain and stage gages
Transmit information
Base station computer
Process information
Automated threatened area notification (most advance systems)
Automated Stage DetectionAutomated Stage Detection
Float switch/submersed electric circuit activated by rising water
Telephone automatic alarm dialers activated
Calls placed to emergency managers
Manual threatened area notification
Float switch/submersed electric circuit activated by rising water
Telephone automatic alarm dialers activated
Calls placed to emergency managers
Manual threatened area notification
ManualManual
Observer read stage or rain gages.
Two way telephonic communication between observers and emergency managers
Manual threatened area notification
Observer read stage or rain gages.
Two way telephonic communication between observers and emergency managers
Manual threatened area notification
HybridHybrid
Combination of Alert and USGS stream gaging methods and equipment
Remote rain and stage gages
Transmit information
Base station computer or two way telephonic communication with gages
Manual or automated threatened area notification
Combination of Alert and USGS stream gaging methods and equipment
Remote rain and stage gages
Transmit information
Base station computer or two way telephonic communication with gages
Manual or automated threatened area notification
Nonstructural Mitigation MeasuresNonstructural Mitigation Measures
Elevation
Relocation
Floodwalls, Levees and Berms
Buyout/Acquisition
Dry Flood Proofing
Wet Flood Proofing
Flooding Warning/Preparedness
National Flood Insurance Program
Elevation
Relocation
Floodwalls, Levees and Berms
Buyout/Acquisition
Dry Flood Proofing
Wet Flood Proofing
Flooding Warning/Preparedness
National Flood Insurance Program
National Flood Insurance Program 44CFR 59-78
National Flood Insurance Program 44CFR 59-78
Flood Plain Regulation
Flood Insurance
Flood Mitigation
Flood Plain Regulation
Flood Insurance
Flood Mitigation
Why InvestigateNonstructural Measures ?
Why InvestigateNonstructural Measures ?
Requirements
Opportunities
Requirements
Opportunities
RequirementsRequirements
The Flood Control Act of 1938 – authorized the Corps “where the construction cost of levees or flood walls included in any authorized project can be substantially reduced by the evacuation of a portion or all of the area proposed to be protected” to expend funds “toward the evacuation of the locality eliminated from protection and the rehabilitation of the persons so evacuated”.
The Flood Control Act of 1938 – authorized the Corps “where the construction cost of levees or flood walls included in any authorized project can be substantially reduced by the evacuation of a portion or all of the area proposed to be protected” to expend funds “toward the evacuation of the locality eliminated from protection and the rehabilitation of the persons so evacuated”.
RequirementsRequirements
The Flood Control Act of 1960 – authorized the Corps “to compile and disseminate information on floods and flood damages, including identification of areas subject to inundation by floods of various magnitudes and frequencies, and general criteria for guidance in the use of flood plain areas, and to provide engineering advice to local interests for their use in planning to ameliorate the flood hazard.: This is the Flood Plain Management Services Program.
The Flood Control Act of 1960 – authorized the Corps “to compile and disseminate information on floods and flood damages, including identification of areas subject to inundation by floods of various magnitudes and frequencies, and general criteria for guidance in the use of flood plain areas, and to provide engineering advice to local interests for their use in planning to ameliorate the flood hazard.: This is the Flood Plain Management Services Program.
RequirementsRequirements
National Flood Insurance Act of 1968 – authorized the National Flood Insurance Program, which has evolved to generally consist of flood insurance, flood plain regulation, and flood hazard mitigation through primarily nonstructural measures.
National Flood Insurance Act of 1968 – authorized the National Flood Insurance Program, which has evolved to generally consist of flood insurance, flood plain regulation, and flood hazard mitigation through primarily nonstructural measures.
RequirementsRequirements
The Water Resources Development Act of 1974 – requires of the Corps that “consideration shall be given to nonstructural alternatives to prevent or reduce flood damages”.
The Water Resources Development Act of 1974 – requires of the Corps that “consideration shall be given to nonstructural alternatives to prevent or reduce flood damages”.
RequirementsRequirements
Executive Order 11988 dated 24 May 1977 – requires the Corps to implement “action to reduce the risk of flood loss, to minimize the impact of floods on human safety, health and welfare, and to restore and preserve the natural and beneficial values served by floodplains.”
Executive Order 11988 dated 24 May 1977 – requires the Corps to implement “action to reduce the risk of flood loss, to minimize the impact of floods on human safety, health and welfare, and to restore and preserve the natural and beneficial values served by floodplains.”
RequirementsRequirements
Economic and Environmental Principles and Guidelines for Water and Related Land Resources Implementation Studies dated March 1983 (P&G) – requires of the Corps that “nonstructural measures should be considered as means for addressing problems and opportunities” in water and related land resources implementation studies.
Economic and Environmental Principles and Guidelines for Water and Related Land Resources Implementation Studies dated March 1983 (P&G) – requires of the Corps that “nonstructural measures should be considered as means for addressing problems and opportunities” in water and related land resources implementation studies.
RequirementsRequirements
Digest of Water Resources Policies and Authorities [EP 1165-2-1] – requires that “Consideration will be given both to measures intended to modify flood behavior [structural measures] and those intended to modify damage susceptibility by altering the ways in which people would otherwise occupy and use flood plain lands and waters [nonstructural measures].”
Digest of Water Resources Policies and Authorities [EP 1165-2-1] – requires that “Consideration will be given both to measures intended to modify flood behavior [structural measures] and those intended to modify damage susceptibility by altering the ways in which people would otherwise occupy and use flood plain lands and waters [nonstructural measures].”
RequirementsRequirements
Planning Guidance Notebook [ER 1105-2-100] – requires nonstructural measure consideration by stating “Section 73 of the Water Resources Development Act of 1974 requires consideration of nonstructural alternatives in flood damage reduction studies.
Planning Guidance Notebook [ER 1105-2-100] – requires nonstructural measure consideration by stating “Section 73 of the Water Resources Development Act of 1974 requires consideration of nonstructural alternatives in flood damage reduction studies.
OpportunitiesOpportunities Another set of tools No Adverse Impacts
Flood Plain Environmental
Complies with E.O. 11988 Complies with NFIP Regulations
HMGP acquired land Insurable structures/Fill in
floodway
Another set of tools No Adverse Impacts
Flood Plain Environmental
Complies with E.O. 11988 Complies with NFIP Regulations
HMGP acquired land Insurable structures/Fill in
floodway
Opportunities (cont.)Opportunities (cont.)New Uses of the Evacuated Flood Plain
Ecosystem RestorationRecreation Spillover Benefits
Water Quality ImprovementRecreation Costs - 50% versus 10%Cost Sharing
35% / 65%Lower Cost - PossibleMitigation of Adverse Effects of Structural
Projects
New Uses of the Evacuated Flood Plain Ecosystem RestorationRecreation Spillover Benefits
Water Quality ImprovementRecreation Costs - 50% versus 10%Cost Sharing
35% / 65%Lower Cost - PossibleMitigation of Adverse Effects of Structural
Projects
Opportunities (cont.)Opportunities (cont.) Achievement of Strategic Goals Achievement of the Environmental Operating Principles Achievement of Actions for Change
Partnering
Lower O&M Costs
Supports both short term and long term flood risk reduction
Redundant flood risk reduction - consequence focused.
Achievement of Strategic Goals Achievement of the Environmental Operating Principles Achievement of Actions for Change
Partnering
Lower O&M Costs
Supports both short term and long term flood risk reduction
Redundant flood risk reduction - consequence focused.
National Flood Insurance Program 44 CFR 59-78National Flood Insurance Program 44 CFR 59-78
DefinitionsBase FloodFloodFlood PlainFloodwaySubstantial DamageSubstantial Improvement
DefinitionsBase FloodFloodFlood PlainFloodwaySubstantial DamageSubstantial Improvement
Flood Plain Regulation 44 CFR 60Flood Plain Regulation 44 CFR 60
STREAM CHANNELSTREAM CHANNEL
FLOODWAYFLOODWAY FLOOD FRINGEFLOOD FRINGEFLOOD FRINGEFLOOD FRINGE
100 Year Floodplain100 Year
Floodplain
Base FloodBase Flood
100 Year Flood100 Year Flood
• V Zone
• Coastal A Zone
• A Zone
• X Zone
• V Zone
• Coastal A Zone
• A Zone
• X Zone
Coastal Flood Plain
Flood Plain Regulation
Flood Insurance
Flood Mitigation
Flood Plain Regulation
Flood Insurance
Flood Mitigation
Flood Insurance
Flood Insurance
NFI P
Flood Mitigation
Flood Mitigation
Floodplain RegulationFloodplain Regulation
All new construction and substantial improvements of :
Residential structures have the lowest floor, including basement, elevated to or above the Base Flood
Non-Residential structures have the lowest floor, including basement, flood proofed to or above the Base Flood
All new construction and substantial improvements of :
Residential structures have the lowest floor, including basement, elevated to or above the Base Flood
Non-Residential structures have the lowest floor, including basement, flood proofed to or above the Base Flood
Requirements - RiverineRequirements - Riverine
Prohibit encroachments within the floodway unless it has been demonstrated through hydrologic and hydraulic analysis that the proposed encroachment will not result in any increase in the Base Flood Elevation
Prohibit encroachments within the floodway unless it has been demonstrated through hydrologic and hydraulic analysis that the proposed encroachment will not result in any increase in the Base Flood Elevation
Requirements - RiverineRequirements - Riverine
Requirements - CoastalRequirements - Coastal
All new construction and substantial improvements of :
Residential structures have the lowest floor, including basement, elevated to or above the Base Flood
Non-Residential structures have the lowest floor, including basement, flood proofed to or above the Base Flood
All new construction and substantial improvements of :
Residential structures have the lowest floor, including basement, elevated to or above the Base Flood
Non-Residential structures have the lowest floor, including basement, flood proofed to or above the Base Flood
All new construction and substantial improvements within V zones : Be elevated on piles or columns so the
bottom of the lowest horizontal structural member is Elevated to or above the Base Flood with the space below the lowest floor either free of obstruction or constructed with breakaway wall or open lattice
Do not use Fill
All new construction and substantial improvements within V zones : Be elevated on piles or columns so the
bottom of the lowest horizontal structural member is Elevated to or above the Base Flood with the space below the lowest floor either free of obstruction or constructed with breakaway wall or open lattice
Do not use Fill
Requirements - CoastalRequirements - Coastal
Flood Plain Regulation
Flood Insurance
Flood Mitigation
Flood Plain Regulation
Flood Insurance
Flood Mitigation
Flood Insurance
Flood Insurance
NFI P
Flood Mitigation
Flood Mitigation
Floodplain RegulationFloodplain Regulation
Flood InsuranceDefinitions
Flood InsuranceDefinitions
Basement
Building
Post FIRM building
Pre FIRM building
Walled and Roofed
Flood InsuranceDefinitions
Flood InsuranceDefinitions
Basement – any area of a building having its floor subgrade below ground level on all sides
Building – a walled and roofed structure that is principally above ground and affixed to a permanent site
Post FIRM building – a building for which the start of construction or substantial improvement occurred on or after the effective date of the initial FIRM for the community
Basement – any area of a building having its floor subgrade below ground level on all sides
Building – a walled and roofed structure that is principally above ground and affixed to a permanent site
Post FIRM building – a building for which the start of construction or substantial improvement occurred on or after the effective date of the initial FIRM for the community
Flood InsuranceDefinitions
Flood InsuranceDefinitions
Pre FIRM building – a building for which the start of construction or substantial improvement occurred before the effective date of the initial FIRM for the community
Walled and Roofed – the building has in place two or more exterior rigid walls and the roof is fully secured so that the building will resist flotation, collapse, and lateral movement
Pre FIRM building – a building for which the start of construction or substantial improvement occurred before the effective date of the initial FIRM for the community
Walled and Roofed – the building has in place two or more exterior rigid walls and the roof is fully secured so that the building will resist flotation, collapse, and lateral movement
Flood InsuranceFlood Insurance
General dwelling losses not covered Loss of insured property useLoss of access to insured propertyLoss of profitsLosses resulting from additional living
expenses while the insured property is being repaired
Losses resulting from casualties other than as defined as a flood
General dwelling losses not covered Loss of insured property useLoss of access to insured propertyLoss of profitsLosses resulting from additional living
expenses while the insured property is being repaired
Losses resulting from casualties other than as defined as a flood
Flood InsuranceFlood Insurance Dwelling Property covered:
Building Property
The building
Additions and extensions to the building
Materials and supplies to be used in constructing or altering the building
Fixtures, machinery, and equipment within the building and owned by the insured such as: furnaces, permanently installed wall mirrors, cupboards, bookcases, paneling, wallpaper, blinds, dishwashers, carpet, and garbage disposals, pumps, plumbing, ranges, stoves, refrigerators, etc.
Flood InsuranceFlood Insurance Dwelling Property covered:
Personal Property
Owned by the insured or members within the insured’s household if stored within the building and secured to prevent flotation out of the building during flooding
Debris Removal
Expense of debris removal if directly caused by a flood
Flood InsuranceFlood Insurance Dwelling Property not covered:
Personal property in the open Fences, retaining walls, docks, etc.
Indoor and outdoor poolsUnderground structures and equipment Land, lawns, trees, etc.
Animals Aircraft, watercraft Manufactured homes that are not anchored
Post FIRM basements in SFHA’s Personal property Fixtures/components attached to the building
but not needed for building support or utilities Finished walls
Dwelling Property not covered:Personal property in the open
Fences, retaining walls, docks, etc. Indoor and outdoor poolsUnderground structures and equipment Land, lawns, trees, etc.
Animals Aircraft, watercraft Manufactured homes that are not anchored
Post FIRM basements in SFHA’s Personal property Fixtures/components attached to the building
but not needed for building support or utilities Finished walls
Flood Plain Regulation
Flood Insurance
Flood Mitigation
Flood Plain Regulation
Flood Insurance
Flood Mitigation
Project criteria
Conform with hazard mitigation plan
Be cost effective
Conform with flood plain management criteria
Have a beneficial impact on the designated disaster area
75/25 cost share
Generally funded at 15% of total disaster grants
Project criteria
Conform with hazard mitigation plan
Be cost effective
Conform with flood plain management criteria
Have a beneficial impact on the designated disaster area
75/25 cost share
Generally funded at 15% of total disaster grants
Hazard Mitigation Grant Program
Types of ProjectsStructural
Nonstructural
Acquisition/relocation
Develop state and local mitigation standards
Develop comprehensive hazard mitigation programs with implementation as an essential component
Develop or improve warning systems
Types of ProjectsStructural
Nonstructural
Acquisition/relocation
Develop state and local mitigation standards
Develop comprehensive hazard mitigation programs with implementation as an essential component
Develop or improve warning systems
Hazard Mitigation Grant Program
Planning grants Develop flood hazard mitigation plans 75/25 cost share
Project grants Implement flood mitigation projects
contained in the flood hazard mitigation plan
75/25 cost shareTechnical assistance grants
To aid applicants in applying for the FMA Program
100/0 cost share$31 Million
Planning grants Develop flood hazard mitigation plans 75/25 cost share
Project grants Implement flood mitigation projects
contained in the flood hazard mitigation plan
75/25 cost shareTechnical assistance grants
To aid applicants in applying for the FMA Program
100/0 cost share$31 Million
Flood Mitigation Assistance Program
Pre-Disaster Mitigation ProgramMitigates all natural disasters –
not just floodMust have approved mitigation
plan for project funds75/25 cost shareBe cost effectiveEligible projects
Mitigation planning Mitigation projects Information dissemination
$100 Million
Pre-Disaster Mitigation ProgramMitigates all natural disasters –
not just floodMust have approved mitigation
plan for project funds75/25 cost shareBe cost effectiveEligible projects
Mitigation planning Mitigation projects Information dissemination
$100 Million
One or more claims to NFIP Relocation/Buyout/ Open Space Use Possible 100% Federal Up to $10 Million 75/25 Cost Share Standard
One or more claims to NFIP Relocation/Buyout/ Open Space Use Possible 100% Federal Up to $10 Million 75/25 Cost Share Standard
Repetitive Flood Claims Grant Program
Repetitive Flood Claims Grant Program
Four or more paid losses of $1,000 or more Two paid losses within a 10-year period Three or more paid losses since 1978
Four or more paid losses of $1,000 or more Two paid losses within a 10-year period Three or more paid losses since 1978
Repetitive LossRepetitive Loss
Severe Repetitive Loss PropertiesResidentialFour NFIP claims over $5,000 each
At least two claims within any 10 year period
At least two claims that cumulatively exceed the value of the property
Possible 90% Federal 75/25 Cost Share Standard Up to $40 Million
Severe Repetitive Loss PropertiesResidentialFour NFIP claims over $5,000 each
At least two claims within any 10 year period
At least two claims that cumulatively exceed the value of the property
Possible 90% Federal 75/25 Cost Share Standard Up to $40 Million
Severe Repetitive Loss ProgramSevere Repetitive Loss Program
Credible activitiesPublic Information
Elevation certificates Map information Outreach programs Hazard Disclosure Flood protection library Flood protection assistance
Credible activitiesPublic Information
Elevation certificates Map information Outreach programs Hazard Disclosure Flood protection library Flood protection assistance
Community Rating SystemCommunity Rating System
Open space preservation
Higher regulatory standards
Flood data maintenance
Stormwater management
Open space preservation
Higher regulatory standards
Flood data maintenance
Stormwater management
Mapping and RegulatoryMapping and Regulatory
Flood plain management plans
Acquisition and relocation
Retrofitting
Drainage
Flood plain management plans
Acquisition and relocation
Retrofitting
Drainage
Flood Damage Reduction ActivitiesFlood Damage Reduction Activities
Flood Warning Program
Levee Safety
Dam Safety
Flood Warning Program
Levee Safety
Dam Safety
Flood Preparedness ActivitiesFlood Preparedness Activities
Maximum flood insurance premium reduction is 45%
Maximum flood insurance premium reduction is 45%
Flood Plain Management Criteria Relative to Structural Flood Damage Reduction Projects
Flood Plain Management Criteria Relative to Structural Flood Damage Reduction Projects
Basic requirements of the structural flood damage reduction project
No adopted regulatory floodway
The project will not increase the Base Flood Elevation (BFE) more than a foot at any location
Basic requirements of the structural flood damage reduction project
No adopted regulatory floodway
The project will not increase the Base Flood Elevation (BFE) more than a foot at any location
National Flood Insurance ProgramNational Flood Insurance Program
Adopted regulatory floodwayThe project will not place fill material or new construction within the regulatory floodway unless it is demonstrated that no increase in the BFE will occur
Adopted regulatory floodwayThe project will not place fill material or new construction within the regulatory floodway unless it is demonstrated that no increase in the BFE will occur
Flood Plain Management Criteria Relative to Structural Flood Damage Reduction Projects
Flood Plain Management Criteria Relative to Structural Flood Damage Reduction Projects
National Flood Insurance ProgramNational Flood Insurance Program
Conditional Letter of Map Revision (CLOMR). Basic requirements of the CLOMR are as follows:
Request for conditional approval of the FIRM change.
Evaluate alternatives which would not result in an increase in BFE
Document that individual legal notice has been made to all increased BFE
Gain concurrence of other impacted communities.
Conditional Letter of Map Revision (CLOMR). Basic requirements of the CLOMR are as follows:
Request for conditional approval of the FIRM change.
Evaluate alternatives which would not result in an increase in BFE
Document that individual legal notice has been made to all increased BFE
Gain concurrence of other impacted communities.
Conditional Letter of Map Revision (CLOMR). Basic requirements of the CLOMR are as follows:
Certify that no structures are located in areas impacted by the increased BFE
Provide documentation of hydrologic and hydraulic analysis reflecting the increase in BFE and change in floodway
Provide a plan to mitigate the increased BFE and change in floodway.
A Letter of Map Revision (LOMR) submittal is required upon project completion.
Conditional Letter of Map Revision (CLOMR). Basic requirements of the CLOMR are as follows:
Certify that no structures are located in areas impacted by the increased BFE
Provide documentation of hydrologic and hydraulic analysis reflecting the increase in BFE and change in floodway
Provide a plan to mitigate the increased BFE and change in floodway.
A Letter of Map Revision (LOMR) submittal is required upon project completion.
Basic ObjectivesProvide leadership in flood plain managementAvoid long and short term adverse flood plain
impacts associated with projects.Avoid direct and indirect support of
development in the flood plain.Reduce the risk of flood loss.Minimize the impact of floods on health, safety,
and welfare. Restore and preserve the natural and beneficial values of flood plains.
Involve the public throughout the flood plain management decision process.
Basic ObjectivesProvide leadership in flood plain managementAvoid long and short term adverse flood plain
impacts associated with projects.Avoid direct and indirect support of
development in the flood plain.Reduce the risk of flood loss.Minimize the impact of floods on health, safety,
and welfare. Restore and preserve the natural and beneficial values of flood plains.
Involve the public throughout the flood plain management decision process.
Executive Order 11988 – Flood Plain ManagementExecutive Order 11988 – Flood Plain Management
Basic Steps
Determine whether the project is in 100-year or 500-year flood plain.
Notify the public early of a project that is proposed to be 100-year or 500-year flood plain to involve local decision makers in the decision process.
Identify and evaluate practicable alternatives to locating the project in the flood plain.
Identify the potential direct and indirect impacts with the project in the flood plain.
Basic Steps
Determine whether the project is in 100-year or 500-year flood plain.
Notify the public early of a project that is proposed to be 100-year or 500-year flood plain to involve local decision makers in the decision process.
Identify and evaluate practicable alternatives to locating the project in the flood plain.
Identify the potential direct and indirect impacts with the project in the flood plain.
Executive Order 11988 – Flood Plain ManagementExecutive Order 11988 – Flood Plain Management
Basic Steps
Minimize the potential adverse impacts to or within the flood plain.
Reevaluate the project to see if it is still practicable in light of the impact to others
Provide the public with the findings and explanation that the project in the flood plain is the only practicable alternative.
Provide for mitigation of adverse affects of the project.
Basic Steps
Minimize the potential adverse impacts to or within the flood plain.
Reevaluate the project to see if it is still practicable in light of the impact to others
Provide the public with the findings and explanation that the project in the flood plain is the only practicable alternative.
Provide for mitigation of adverse affects of the project.
Executive Order 11988 – Flood Plain ManagementExecutive Order 11988 – Flood Plain Management
Basic Steps
•NFIP standards are minimum
•If locating "new construction" in a flood plain, flood proofing should be applied
Critical Actions
•A slight chance of flooding is too great
•If flooded, would the flood effects be worsened
•Risk to public safety and increased hazard to life
•500 year flood standard minimum
Basic Mitigation RequirementsLand
Land that is within the regulatory floodway post-project that was not within the regulatory floodway pre-project.
Land that is within the 100-year flood boundary post-project that was not within the 100-year flood boundary pre-project.
Land that is in the pre-project floodway that has a floodway elevation post-project that is higher than the pre-project floodway elevation.
Mitigation.
Basic Mitigation RequirementsLand
Land that is within the regulatory floodway post-project that was not within the regulatory floodway pre-project.
Land that is within the 100-year flood boundary post-project that was not within the 100-year flood boundary pre-project.
Land that is in the pre-project floodway that has a floodway elevation post-project that is higher than the pre-project floodway elevation.
Mitigation.
Executive Order 11988 – Flood Plain ManagementExecutive Order 11988 – Flood Plain Management
National Flood Insurance Program (NFIP) Insurable Structures
Structures that are within the regulatory floodway post project that were not within the regulatory floodway pre-project.
Structures that are within the 100-year flood boundary post-project that were not in the 100-year flood boundary pre-project.
Structures that are subject to a 100-year flood water surface elevation post-project that is higher than the 100-year flood water surface elevation pre-project.
Mitigation
National Flood Insurance Program (NFIP) Insurable Structures
Structures that are within the regulatory floodway post project that were not within the regulatory floodway pre-project.
Structures that are within the 100-year flood boundary post-project that were not in the 100-year flood boundary pre-project.
Structures that are subject to a 100-year flood water surface elevation post-project that is higher than the 100-year flood water surface elevation pre-project.
Mitigation
Executive Order 11988 – Flood Plain ManagementExecutive Order 11988 – Flood Plain Management
State Minimum Standards for Flood Plain Management
Varies from State to State
Are always equal to or more restrictive than that of the NFIP in terms of:
Flood plain regulation
•Elevation above the BFE.
•Allowable rise due to fill or new construction in the flood plain
Mitigation of adverse impacts of projects.
State Minimum Standards for Flood Plain Management
Varies from State to State
Are always equal to or more restrictive than that of the NFIP in terms of:
Flood plain regulation
•Elevation above the BFE.
•Allowable rise due to fill or new construction in the flood plain
Mitigation of adverse impacts of projects.
Executive Order 11988 – Flood Plain ManagementExecutive Order 11988 – Flood Plain Management
Section 202 of WRDA 1996Flood Plain Management PlansSection 202 of WRDA 1996Flood Plain Management Plans
• Applies to any flood damage reduction project which had the PPA signed after 12 October 1996.
• Non Federal interests must prepare a flood plain management plan designed to reduce impacts of future floods in the project area
• Develop within one year of PPA execution
•Implement within one year after project completion
•Primarily non structural measures are used
• Applies to any flood damage reduction project which had the PPA signed after 12 October 1996.
• Non Federal interests must prepare a flood plain management plan designed to reduce impacts of future floods in the project area
• Develop within one year of PPA execution
•Implement within one year after project completion
•Primarily non structural measures are used
Section 402 of WRDA 1986Section 402 of WRDA 1986
• Applies to all flood damage reduction projects
• Non Federal interests shall comply with applicable Federal flood plain management and flood insurance programs.
• Applies to all flood damage reduction projects
• Non Federal interests shall comply with applicable Federal flood plain management and flood insurance programs.
Section 219 of WRDA 1999Section 219 of WRDA 1999• Applies to the analysis of nonstructural buyout and
relocations measures• All projects• Benefit Calculation• Use both externalized and internalized portions of
flood damages prevented• Valued new use of evaluated flood plain• Reduction in damages to public property• Reduction in emergency costs• Reduction in admin costs of NFIP and disaster
relief• Damages prevented
• Applies to the analysis of nonstructural buyout and relocations measures
• All projects• Benefit Calculation• Use both externalized and internalized portions of
flood damages prevented• Valued new use of evaluated flood plain• Reduction in damages to public property• Reduction in emergency costs• Reduction in admin costs of NFIP and disaster
relief• Damages prevented
Section 219 of WRDA 1999 (cont.)Section 219 of WRDA 1999 (cont.)
• For real estate costs use comparable flood free land and building cost
• Betterments to gain DSS and housing costs of last resort are not included in flood free property cost.
• For real estate costs use comparable flood free land and building cost
• Betterments to gain DSS and housing costs of last resort are not included in flood free property cost.
PurposeTo ensure that persons displaced as a direct
result of Federal and federally-assisted projects are treated fairly, consistently, and equitably so that such persons will not suffer disproportionate injuries as a result of projects designed for the benefit of the public as a whole.
PurposeTo ensure that persons displaced as a direct
result of Federal and federally-assisted projects are treated fairly, consistently, and equitably so that such persons will not suffer disproportionate injuries as a result of projects designed for the benefit of the public as a whole.
Uniform Relocation Assistance and Real Property Policies Act of 1970
and the Uniform Relocation Act Amendments of 1987
ApplicabilityThe requirements apply to any acquisition of real
property for a federal project or project, and to programs and projects where there is Federal financial assistance in any part of project costs except for:
Voluntary transactions that meet all of the following conditions:No specific site or property needs to be acquiredThe property to be acquired is not part of an intended, planned, or designated project area where all or substantially all of the property within the area is to be acquired within specific time limits
The Agency will not acquire the property in the event negotiations fail to result in an amicable agreement, and the owner is so informed in writing.
The Agency will inform the owner of what it believes to be fair market value of the property.
ApplicabilityThe requirements apply to any acquisition of real
property for a federal project or project, and to programs and projects where there is Federal financial assistance in any part of project costs except for:
Voluntary transactions that meet all of the following conditions:No specific site or property needs to be acquiredThe property to be acquired is not part of an intended, planned, or designated project area where all or substantially all of the property within the area is to be acquired within specific time limits
The Agency will not acquire the property in the event negotiations fail to result in an amicable agreement, and the owner is so informed in writing.
The Agency will inform the owner of what it believes to be fair market value of the property.
Decent, Safe, and Sanitary
Functionally Equivalent to the present dwelling
Located in an area not less desirable than the present location
Currently available in the private market
Within the financial means of the displaced person
Decent, Safe, and Sanitary
Functionally Equivalent to the present dwelling
Located in an area not less desirable than the present location
Currently available in the private market
Within the financial means of the displaced person
Comparable Replacement Dwelling
The term “decent, safe, and sanitary” means a dwelling which:
Is structurally sound, weathertight, and in good repair.
Contains a safe electrical wiring system adequate for lighting and other devices.
Contains a heating system capable of sustaining a healthful temperature (of approximately 70 degrees) for a displaced person, except in those areas where local climatic conditions do not require such a system.
Is adequate in size with respect to the number of rooms and area of living space needed to accommodate the displaced person.
Has proper ingress and egress
Is properly connected to an appropriate water source and an appropriate sewage system.
The term “decent, safe, and sanitary” means a dwelling which:
Is structurally sound, weathertight, and in good repair.
Contains a safe electrical wiring system adequate for lighting and other devices.
Contains a heating system capable of sustaining a healthful temperature (of approximately 70 degrees) for a displaced person, except in those areas where local climatic conditions do not require such a system.
Is adequate in size with respect to the number of rooms and area of living space needed to accommodate the displaced person.
Has proper ingress and egress
Is properly connected to an appropriate water source and an appropriate sewage system.
Uniform Relocation Assistance and Real Property Policies Act of 1970 and the Uniform
Relocation Act Amendments of 1987
Replacement Housing Payments:
Owners who were in occupancy 180 days or more prior to the initiation of negotiations may be eligible for a purchase supplement up to $22,500 or rental assistance payment up to $5,250.
Tenants who were in occupancy for 90 days or more prior to initiation of negotiation man be eligible for a rental assistance payment up to $5,250.
Housing of Last Resort
Replacement Housing Payments:
Owners who were in occupancy 180 days or more prior to the initiation of negotiations may be eligible for a purchase supplement up to $22,500 or rental assistance payment up to $5,250.
Tenants who were in occupancy for 90 days or more prior to initiation of negotiation man be eligible for a rental assistance payment up to $5,250.
Housing of Last Resort
Uniform Relocation Assistance and Real Property Policies Act of 1970 and
the Uniform Relocation Act Amendments of 1987
Uniform Relocation Assistance and Real Property Policies Act of 1970 and
the Uniform Relocation Act Amendments of 1987
Engineering Regulation 1105-2-100
Engineering Regulation 1105-2-100
Engineering Regulation 1105-2-100
Engineering Regulation 1105-2-100
Nonstructural measures shall receive equal consideration in the Planning process
New uses of evacuated flood plainRecreationEcosystem restorationRecreation cost may not exceed 50% of
the total project costsRecreation benefits may exceed 50% of
the benefits needed for project justification
Nonstructural measures shall receive equal consideration in the Planning process
New uses of evacuated flood plainRecreationEcosystem restorationRecreation cost may not exceed 50% of
the total project costsRecreation benefits may exceed 50% of
the benefits needed for project justification
New uses of evacuated flood plain (continued)Benefits from ecosystem restoration and
recreation that are new uses of the evacuated flood plain are considered flood damage reduction
Land costs applicable to ecosystem restoration should not exceed 25% of total project costs
Recreation and ecosystem restoration, if considered incidental to the primary purpose of flood damage reduction, can be cost shared on the basis of flood damage reduction
New uses of evacuated flood plain (continued)Benefits from ecosystem restoration and
recreation that are new uses of the evacuated flood plain are considered flood damage reduction
Land costs applicable to ecosystem restoration should not exceed 25% of total project costs
Recreation and ecosystem restoration, if considered incidental to the primary purpose of flood damage reduction, can be cost shared on the basis of flood damage reduction
Engineering Regulation 1105-2-100
Engineering Regulation 1105-2-100
Engineering Regulation 1105-2-100
Relocation/buyout is justified by:Value of the new use of the evacuated flood plainReduction in damage to public propertyReduction in emergency costsReduction in administrative costs of the NFIP
and disaster reliefTotal flood damage reducedSpillover benefits
Two or more structures are needed unless single property protection is part of a larger plan benefiting multiple owners
65%/35% cost share
Relocation/buyout is justified by:Value of the new use of the evacuated flood plainReduction in damage to public propertyReduction in emergency costsReduction in administrative costs of the NFIP
and disaster reliefTotal flood damage reducedSpillover benefits
Two or more structures are needed unless single property protection is part of a larger plan benefiting multiple owners
65%/35% cost share
U.S. Army Corps of EngineersU.S. Army Corps of Engineers
National Nonstructural National Nonstructural Flood Proofing Flood Proofing
Committee Committee
U.S. Army Corps of EngineersU.S. Army Corps of Engineers
National Nonstructural National Nonstructural Flood Proofing Flood Proofing
Committee Committee