Wake County Hazard Mitigation Plan - Adopted 10-21-2024

ANNEX H: TOWN OF KNIGHTDALE

H.1.4 WILDFIRE Table H.5 summarizes the acreage in the Town of Knightdale that falls within the Wildland Urban Interface (WUI), categorized by housing density. The WUI is the area where housing development is built near or among areas of vegetation that may be prone to wildfire. Areas in the WUI are those where development may intermix with flammable vegetation. Over 14 percent of the Town of Knightdale is not included in the WUI. Table H.5 – Wildland Urban Interface Acreage, Town of Knightdale

Housing Density

Total Acreage

Percent of Total Acreage

Not in WUI

915.29

14.9%

LT 1hs/40ac

524.44

8.5%

1hs/40ac to 1hs/20ac

374.63

6.1%

1hs/20ac to 1hs/10ac

493.67

8.0%

1hs/10ac to 1hs/5ac

574.03

9.4%

1hs/5ac to 1hs/2ac

918.28

15.0%

1hs/2ac to 3hs/1ac

1,992.67

32.5%

GT 3hs/1ac

345.91

5.6%

Total

6,138.91

100%

Source: Southern Wildfire Risk Assessment

Figure H.5 depicts the WUI for the Town of Knightdale. Figure H.6 depicts the Fire Intensity Scale, which indicates the potential severity of fire based on fuel loads, topography, and other factors. Figure H.7 depicts Burn Probability based on landscape conditions, percentile weather, historical ignition patterns, and historical prevention and suppression efforts. Areas of high potential fire intensity are scattered throughout the outer regions of Knightdale and overlap with areas of the WUI in the southern and northeaster portions of the town. However, burn probability is predominately low throughout the town, meaning development in these areas is at low to no risk. However, the burn probability in the southeast region is moderately high and intersects with the WUI. Table H.6 provides the count and estimated value of all structures that intersect with areas of the Town of Knightdale that are rated moderate to high on the WUI Risk Index. Table H.6 – Structures at Risk to Moderate-High WUI Risk Index, Town of Knightdale Occupancy Structures at Risk Structure Value Estimated Content Value Total Value Agriculture 51 $6,756,565 $6,756,565 $13,513,130 Commercial 185 $255,016,188 $255,016,188 $510,032,376 Education 16 $106,522,236 $106,522,236 $213,044,472 Government 26 $41,320,804 $41,320,804 $82,641,608 Industrial 46 $240,188,893 $360,283,340 $600,472,233 Religious 16 $30,168,738 $30,168,738 $60,337,476 Residential 6975 $2,197,092,000 $1,098,546,000 $3,295,638,000 Total 7,315 $2,877,065,424 $1,898,613,871 $4,775,679,295 Source: Southern Wildfire Risk Assessment

Wake County, NC Multi-Jurisdictional Hazard Mitigation Plan

WSP June 2024 Page 482

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