widespread flooding in new jersey as local rivers overflow after spring storms passaige, saddle,...
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WIDESPREAD FLOODING IN NEW JERSEY AS LOCAL
RIVERS OVERFLOW AFTER SPRING STORMS
PASSAIGE, SADDLE, RAMAPO, POMPTON RIVER SYSTEMS OVERFLOW BANKS
MARCH 7-13; APRIL 17-18, 2011
Walter Hays, Global Alliance for Disaster Reduction, University of
North Carolina, USA
FLOOD HAZARDS (AKA
POTENTIAL DISASTER AGENTS)• TOO MUCH WATER DISCHARGED
WITHIN THE DRAINAGE SYSTEM TO BE ACCOMMODATED WITHIN THE FLOODPLAIN AND THE WATER CYCLE
• EROSION
• SCOUR
• MUDFLOWS
LOSS OF FUNCTION OF STRUCTURES IN FLOODPLAIN
FLOODSFLOODS
INUNDATION OF HOUSES, ROADS,BRIDGES, ETC.
INTERACTION WITH HAZARDOUS MATERIALS
CONTENTS DAMAGED BY WATER
WATER BORNE DISEASES (HEALTH PROBLEMS)
EROSION AND MUDFLOWS
CONTAMINATION OF GROUND WATER
CAUSES OF RISK
CAUSES OF RISK
CASE HISTORIESCASE HISTORIES
FLOODING AGAIN IN APRIL
• THE WELL-KNOWN, HIGH VULNERABILITY OF MOBILE HOME COMMUNITIES EXPOSED ONCE AGAIN
• RESIDENTS OF COMMUNITIES WITH REPEAT FLOODING ANGRY WITH GOVERNMENT’S INABILITY TO REDUCE FLOOD RISK.
COMMUNITYCOMMUNITYCOMMUNITYCOMMUNITYDATA BASES DATA BASES AND INFORMATIONAND INFORMATIONDATA BASES DATA BASES AND INFORMATIONAND INFORMATION
HAZARDS: GROUND SHAKING GROUND FAILURE SURFACE FAULTING TECTONIC DEFORMATION TSUNAMI RUN UP AFTERSHOCKS
•HAZARD MAPS•INVENTORY•VULNERABILITY•LOCATION
RISK ASSESSMENTRISK ASSESSMENT
RISK
ACCEPTABLE RISK
UNACCEPTABLE RISK
FLOOD DISASTER RISK FLOOD DISASTER RISK REDUCTIONREDUCTION
•PREVENTION/MITIGATION•PREPAREDNESS•EMERGENCY RESPONSE•RECOVERY and RECONSTRUCTION
POLICY OPTIONSPOLICY OPTIONS
DAMAGE DAMAGE INJURIESINJURIESDAMAGE DAMAGE INJURIESINJURIES
UNACCEPTABLE RISKUNACCEPTABLE RISKUNACCEPTABLE RISKUNACCEPTABLE RISK
COLLAPSE COLLAPSE DEATHSDEATHS
COLLAPSE COLLAPSE DEATHSDEATHS
LOSS OF LOSS OF FUNCTIONFUNCTIONLOSS OF LOSS OF FUNCTIONFUNCTION ECONOMIC LOSSECONOMIC LOSSECONOMIC LOSSECONOMIC LOSS
RISKRISKRISKRISK
RISK REDUCTION STRATEGIES FOR FLOODS
RISK REDUCTION STRATEGIES FOR FLOODS
• PURPOSE
• PREVENTION
• PROTECTION
• LAND USE CONTROL
• PURPOSE
• PREVENTION
• PROTECTION
• LAND USE CONTROL
• TECHNIQUE
• WATERSHED MANAGEMENT
• FLOOD CONTROL (DIKES, LEVEES, AND DAMS)
• HAZARD MAPS (RISK ZONES)
• TECHNIQUE
• WATERSHED MANAGEMENT
• FLOOD CONTROL (DIKES, LEVEES, AND DAMS)
• HAZARD MAPS (RISK ZONES)
RISK REDUCTION STRATEGIES FOR FLOODS
RISK REDUCTION STRATEGIES FOR FLOODS
• PURPOSE
• SITE MODIFICATION
• ALERT/WARNING
• MONITORING
• RISK ZONES
• IMPROVE PREPAREDNESS
• PURPOSE
• SITE MODIFICATION
• ALERT/WARNING
• MONITORING
• RISK ZONES
• IMPROVE PREPAREDNESS
• TECHNIQUE
• EMBANKMENTS; SANDBAGS
• EVACUATION
• STREAM GAGUES; DRONE PLANES
• 100-500 YEAR FLOOD MAPS
• SCENARIOS
• TECHNIQUE
• EMBANKMENTS; SANDBAGS
• EVACUATION
• STREAM GAGUES; DRONE PLANES
• 100-500 YEAR FLOOD MAPS
• SCENARIOS
RISK REDUCTION STRATEGIES FOR FLOODS
RISK REDUCTION STRATEGIES FOR FLOODS
• PURPOSE
• RISK ZONES
• IMPROVE PREPAREDNESS
• ENVIRONMENTAL PROTECTION (E.G., HAZ MAT)
• PURPOSE
• RISK ZONES
• IMPROVE PREPAREDNESS
• ENVIRONMENTAL PROTECTION (E.G., HAZ MAT)
• TECHNIQUE
• 100-500 YEAR FLOOD MAPS
• DISASTER SCENARIOS
• OIL SPILL CONTAINMENT AND RECOVERY
• TECHNIQUE
• 100-500 YEAR FLOOD MAPS
• DISASTER SCENARIOS
• OIL SPILL CONTAINMENT AND RECOVERY
EMERGING TECHNOLOGIES FOR FLOOD RISK REDUCTION
EMERGING TECHNOLOGIES FOR FLOOD RISK REDUCTION
• REAL TIME WEATHER FORCASTING AND WARNING SYSTEMS
• MEASURMENT TECHNOLOGIES (E.G., STREAM GAGUES)
• RISK MODELING (E.G., HAZUS, NAT’L. FLOOD INSURANCE UNDERWRITING)
• REAL TIME WEATHER FORCASTING AND WARNING SYSTEMS
• MEASURMENT TECHNOLOGIES (E.G., STREAM GAGUES)
• RISK MODELING (E.G., HAZUS, NAT’L. FLOOD INSURANCE UNDERWRITING)
• DATABASES • MAPS: 100-YEAR AND
500-YEAR FLOODS• FLOOD DISASTER
SCENARIOS• DRONE PLANES• HAZMAT
MANAGEMENT
• DATABASES • MAPS: 100-YEAR AND
500-YEAR FLOODS• FLOOD DISASTER
SCENARIOS• DRONE PLANES• HAZMAT
MANAGEMENT