Local mitigation strategy (LMS) - Volusia County Government

SECTION 6: VULNERABILITY ASSESSMENT6.5 HURRICANE AND TROPICAL STORMSince hurricanes and tropical storms often impact large areas and cross jurisdictional boundaries, allexisting and future buildings, facilities and populations are considered to be exposed to this hazard andcould potentially be impacted. Hurricanes and tropical storms can cause damage through numerousadditional hazards such as flooding, coastal erosion, high winds and precipitation, thus it is difficult toestimate total potential losses from these cumulative effects. The current HAZUS-MH hurricane modelonly analyzes hurricane winds and is not capable of modeling and estimating cumulative losses from allhazards associated with hurricanes. Therefore only hurricane winds are analyzed in this section.Vulnerability to storm surge resulting from hurricanes is addressed individually in a separate section.A probabilistic scenario was created using HAZUS-MH to assess the vulnerability of Volusia County tohurricane winds. Default HAZUS-MH wind speed data and damage functions were used to determine theannual expected loss at the census tract level. Table 6.5 shows estimated exposure, potential annualizedlosses for residential and commercial buildings and the annualized percent loss ratio for each jurisdictionin Volusia County.TABLE 6.5: Total Exposure and Potential Annualized Losses from Hurricane Wind and Tropical StormJURISDICTIONExposure(Total ImprovedValue Of Parcels)ResidentialBuilding LossesCommercialBuilding LossesTotal AnnualizedExpectedProperty LossesAnnualizedPercentLoss RatioDaytona Beach 3,113,758,732 5,220,580 954,257 10,229,498 0.33%Daytona Beach Shores 108,379,184 1,416,333 79,257 2,235,170 2.06%De Bary 855,016,726 669,760 58,154 1,067,971 0.12%DeLand 1,379,957,569 1,469,217 350,353 3,127,843 0.23%Deltona 2,642,766,558 3,652,951 273,600 5,809,187 0.22%Edgewater 806,296,779 1,299,162 141,814 2,226,736 0.28%Holly Hill 432,668,504 829,030 180,478 1,802,272 0.42%Lake Helen 92,912,745 163,939 16,114 285,682 0.31%New Smyrna Beach 1,436,053,516 3,901,394 524,844 7,210,537 0.50%Oak Hill 67,557,864 149,372 17,773 275,639 0.41%Orange City 446,136,500 628,160 147,780 1,222,528 0.27%Ormond Beach 2,269,411,643 3,207,270 540,132 6,031,426 0.27%Pierson 49,333,302 127,939 14,908 225,221 0.46%Ponce Inlet 169,838,467 636,115 46,389 1,017,749 0.60%Port Orange 2,469,426,353 3,653,346 414,496 6,286,779 0.25%South Daytona 482,748,537 1,037,500 211,961 1,993,339 0.41%Unincorporated 4,680,525,914 5,027,147 470,767 8,416,476 0.18%Total $21,502,788,893 $33,089,213 $4,443,077 $59,464,050 -Source: HAZUS-MHVolusia County Multi-jurisdictional Local Mitigation StrategyFebruary 20106:15