Local mitigation strategy (LMS) - Volusia County Government

SECTION 6: VULNERABILITY ASSESSMENT6.12 FLOODIn order to assess flood risk, a GIS-based analysis was used to estimate exposure to flood events usingFEMA’s preliminary Digital Flood Insurance Rate Map (DFIRM) data in combination with local taxassessor records (2009). The determination of assessed value at-risk (exposure) was calculated usingGIS analysis by summing the total assessed building values for improved properties that wereconfirmed to be located within an identified Zone A/AE (100-year floodplain), Zone VE (100-yearcoastal flood zone, associated with wave action), and Zone X (500-year floodplain).It is important to note that Volusia County is currently in the process of updating their flood maps,which are scheduled to be completed by 2011. It is recommended that the flood analyses be revisedonce the new flood maps are available.Tables 6.12 through 6.14 list the number of people and improved parcels (properties with structures),the percentage of properties and the property values that are located in the 100-year (A/AE), coastal100-year (VE) and 500-year (X) floodplains.TABLE 6.12: Volusia County Improved Property at Risk to 100-Year Flood (A/AE Zones)JURISDICTIONNUMBER OF PEOPLEAT RISKNUMBER OFIMPROVED PARCELSAT RISKPERCENTAGE OFIMPROVED PARCELSAT RISKVALUE OFIMPROVED PARCELSAT RISKDaytona Beach 9,559 2,583 13.77% 541,615,872Daytona BeachShores 13 2 0.37% 306,994De Bary 1,507 385 4.61% 48,678,666De Land 4 57 0.66% 11,193,375Deltona 3,874 842 2.53% 69,523,160Edgewater 1,830 644 6.88% 71,431,615Holly Hill 818 355 7.82% 41,801,597Lake Helen 98 50 4.55% 4,411,763New Smyrna Beach 9,474 4,592 41.47% 646,515,375Oak Hill 219 284 31.98% 21,547,190Orange City 2 8 0.30% 43,982,377Ormond Beach 5,943 2,131 13.72% 332,512,855Pierson 776 24 4.07% 2,477,146Ponce Inlet 495 240 21.78% 43,818,351Port Orange 7,882 3,468 16.98% 419,351,137South Daytona 2,119 327 7.18% 61,870,961Unincorporated 19,711 6,556 14.32% 770,855,505Volusia County Multi-jurisdictional Local Mitigation StrategyFebruary 20106:27