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Tuesday, May 19 10:30 - II :45 AM Track 6 - Mapping Techniques - Moderator: Lony Olinger OBJECTIVES OF FEMA'S MAP MODERNIZATION PLAN Michael K. Buckley, PE In the past year FEMA in conjunction with advisors from the Technical Mapping Advisory Council developed plan fOr modernizing the NFIP maps, The plan will have a tremendous impact on the NFIP and the products that are used by Federal, State, and local officials fOr both flood insurance and floodplain management. This paper will outline the many objectives of FEMA's Map Modernization Plan, COMPONENTS OF FEMA'S MAP MODERNIZATION PLAN Matthew B. Miller, PE In the past year FEMA in conjunction with advisors from the Technical Mapping Advisory Council developed plan for modernizing the NFIP maps, The plan will have a tremendous impact on the NFIP and the products that are used by Federal, State, and local officials for both flood insurance and floodplain management This presentation will outline the many components of FEMA' s Map Modernization Plan, THE ROLE OF GPS ELEVATION SURVEYS IN PROACTIVE FLOODPLAIN MANAGEMENT David F. Maune Mass production ofGPS Elevalion Certificates was first tried with a "GPS Shoot-Out" in Louisville, KY, in 1995, in cooperation with the Louisville-JeJfetson COlmty Metropolitan Sewer District (MSD). Later that year, accurate GPS elevation surveys were performed for 1,600 post-FIRM buildings in 62 communities nationwidefor FEMA's No-Cerl Study, In 1996, GPS elevation surveys were performed in 16 flooded communities in West Virginia, and then for thousands of buildings damaged in North Topsail Beach, NC, following Hurricane Fran, as part ofFEMA's Hazard Mitigation Technical Assistance Program (HMTAP), Then the Charlotte-Mecklenburg COlmty (NC) Storm Water Services sponsored accurate GPS elevation surveys of all buildings in or near Special Flood Hazard Areas (SFHA) as part of their proactive floodplain management initiative, In 1997, GPS elevation surveys were performed for 7,900 buildings nationwide as part of a FEMA study of the effects of charging actuarial rates for pre-FIRM buildings, Each of these projects was performed for a different putpose, but they all demonstrated how accurate GPS elevation surveys benefited flood mitigation initiatives -- both for (proactive) floodplain management and for (reactive) disaster response, With lessons learned from these GPS elevation survey projects, this presentation smnmarizes the answers to the following questions: ("GPS Shoot-Out", Louisville, KY): What accuracies are acmevable fiom "stand-oft" GPS elevation surveys, ,md what is the average cost for mass- production ofGPS Elevation Certificates? How have GPS elevation surveys helped the MSD? (No-Cerl Study, Nationwide): Should we eliminate the requirement for Elevation Certificates for post-FIRM buildings in CRS communilies? How reliable are our Elevation Reference Marks (ERMs)? (Hurricane Fran, North Topsail Beach, NC): Can we identify the owners' names and addresses and quickly assess the damages to buildings damaged by floods and hurricanes? (Mecklenburg County, NC): Clm 'proactive floodplain management" be successfu1ly implemented in a flood-prone community, Or is this an impractical concept? How bave GPS elevation surveys helped the Charlotte-Mecklenburg Storm Water Services? (pre-FIRM Actuarial Study, Nationwide): How good are SFHA boundaries in predicting the need for flood insurance? Who needs Elevation Certificates? What are the common "lessons learned' from these projects?