This section includes changes made during the 2013 update


State-Owned Facilities Analysis By Hazard



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State-Owned Facilities Analysis By Hazard

During the 2013 update, the methodology for assessing the vulnerability of state owned facilities to each of the hazards was changed. For the 2013 update, we carried out an analysis that was similar to that carried out in Appendix A6. Based on the count of the number of state owned facilities and each county’s relative risk to each hazard outlined in Appendices A2 and A3, the state owned facility vulnerability was calculated. The breaks between tiers in each of the maps below were determined in ArcGIS using the natural (Jenks) breaks that were automatically applied when the data was brought into the model for mapping. It also must be noted that the analyses that were performed in the 2010 update were somewhat haphazardly done on a mix of hazards and sub-hazards. During the 2013 update, the planning team determined that the nine major hazards were the most important to evaluate and, for the sake of consistency, only these nine hazards were analyzed in terms of state owned critical facility vulnerability.



Flood
Coastal counties in the state with high numbers of state owned critical facilities are those with the highest flood vulnerability for state owned critical facilities (Figure 7-3). Interestingly, the counties in the highest tier often follow the course of major rivers in the eastern part of the state as those basins drain into the Atlantic Ocean.
Figure 7-3. Flood Vulnerability of State Owned Facilities


During the 2013 update, it was determined that information concerning an estimation of the location and dollar value of flood-vulnerable state owned critical facilities by county would not be available in time for the completion of this update. Therefore, annualized flood loss estimates in terms of state owned critical facilities could not be calculated and Table 7-3 became irrelevant. As such, this table was removed during the 2013 update..
Earthquake
Although most counties in North Carolina face, at worst, a moderate risk of being impacted by an earthquake, it is still important to note the vulnerabilities of critical facilities in the state to this hazard. As demonstrated in Figure 7-4, counties in the western part of the state tend to have a higher vulnerability score for critical facilities in terms of the earthquake hazard.
Figure 7-4. Earthquake Vulnerability of State Owned Facilities



Hurricane/Coastal Hazard
As would be expected, counties in the eastern part of North Carolina have been determined to have a higher state owned critical facility vulnerability to hurricanes than those in the west (Figure 7-5).
Figure 7-5. Hurricane Vulnerability of State Owned Facilities



Severe Winter Weather
Counties in the western and northwest Piedmont have the highest state owned critical facility vulnerability across the state (Figure 7-6). Notably, several counties in the eastern Piedmont also received high scores due to their high number of state owned critical facilities.

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