Risk MAP and Region III Coastal Efforts

Risk MAP and Region III Coastal Efforts

US Army Engineer Research and Development Center

November 1, 2011

2US Army Engineer Research and Development Center

How did it all get started?

1956 Federal Flood Insurance Act -40% federal subsidy but leave with the private companies-never got off the ground

1968 National Flood Insurance Act-voluntary Federal Insurance Administration is established/emergency vs. regular

program 3000 communities join the NFIP Congress directs FIA to map flood hazard areas

1973 Federal Disaster Protection Act- voluntary but penalties for not joining

By 1977 over 15000 communities join the NFIP

2004 National Flood Insurance Reform Act 2007 Post Katrina Emergency Management Reform

Act


Rectilinear


Curvilinear


Flood Insurance Rate Map


The Map Modernization Program Nationwide, 5-year, $1 billion program –initiated in

FY2004 Updated FEMA’s Flood Insurance Rate Maps (FIRMs):

70 percent were over 15 years old Produced seamless digital flood data on a countywide

basis Reduced map production time Reduced cost/time for future updates


Digital County-wide Maps


The Paradigm Shift: Map Mod to Risk MAP


Risk MAP – Mapping, Assessment, Planning

Risk MAP goal: Ensure that a measurable increase of the public’s awareness and understanding of risk results in a measurable reduction of current and future vulnerability. • More accurate data to identify,

assess, and mitigate risk• Maps that provide a better display

of risk information• More outreach to communicate risk


Map Mod to Risk MAP Risk Mapping, Assessment and Planning, or Risk MAP:

2010-2014 Builds on Map Mod successes Will deliver quality data that increases public

awareness and leads to action that reduces risk to life and property.

Watershed approach Coastal re-mapping Stronger communication support


Risk MAP


Traditional products are regulatory and subject to statutory due-process requirements

Risk MAP products are non-regulatory and are not subject to statutory due-process requirements

Program Product ComparisonsTraditional Regulatory ProductsTraditional Regulatory Products

Non-Regulatory ProductsNon-Regulatory Products


Why is a Coastal Restudy Needed? New Guidelines need to be implemented

Atlantic Ocean and Gulf of Mexico Guidelines Update (2007) Sheltered Water Report (2008) PM 50 Limit of Moderate Wave Action (LiMWA) (2008)

To update base data such as topographic dataset and aerial imagery to high resolution products and seamless Digital Elevation Model (DEM)

To utilize newer coastal hazard methodologies developed during the FEMA Mississippi Coastal Restudy

To take advantage of higher performance numerical modeling

To take advantage of improvement in GIS technologies to allow for more accurate FIRMs


Extent of Region IIICoastal Study All of Region III coastal counties/cities (Atlantic Ocean

Chesapeake Bay, Delaware Bay and their tributaries)


Coastal Study Process

FLOODPLAIN BOUNDARY & FLOOD HAZARD ZONE MAPPINGFLOODPLAIN BOUNDARY & FLOOD HAZARD ZONE MAPPING

OVERLAND WAVE HEIGHT & RUNUP ANALYSIS OVERLAND WAVE HEIGHT & RUNUP ANALYSIS

STORM-INDUCED EROSIONSTORM-INDUCED EROSION

FRONTAL DUNE DELINEATIONFRONTAL DUNE DELINEATION

FIELD RECONNAISSANCEFIELD RECONNAISSANCE

STARTING WAVE CONDITION ANALYSISSTARTING WAVE CONDITION ANALYSIS

STORM SURGE ANALYSISSTORM SURGE ANALYSIS

TERRAIN PROCESSINGTERRAIN PROCESSING


Coastal Study Outreach Efforts Coastal Outreach Strategy Website – www.r3coastal.com Outreach factsheets Outreach meetings

• Initial outreach (Risk MAP Coordination) meetings for each county

• Regional technical storm surge study meetings• Flood Review Meetings• Community open houses• Final community meetings for each county


Questions?

Risk MAP and Region III Coastal Efforts

Documents

Transcript of Risk MAP and Region III Coastal Efforts