ANNEX D: TOWN OF CARY
D.3.2 Wildfire Table D.15 summarizes the acreage in the Town of Cary that falls within the Wildland Urban Interface (WUI), categorized by housing density. Areas in the WUI are those where development may intermix with flammable vegetation. Over 13 percent the Town of Cary is not included in the WUI. Table D.15 – Wildland Urban Interface Acreage, Town of Cary
Housing Density
Total Acreage
Percent of Total Acreage
Not in WUI
5,588.0
13.2%
LT 1hs/40ac
1,554.2
3.7%
1hs/40ac to 1hs/20ac
1,177.9
2.8%
1hs/20ac to 1hs/10ac
1,614.3
3.8%
1hs/10ac to 1hs/5ac
1,790.8
4.2%
1hs/5ac to 1hs/2ac
3,243.2
7.7%
1hs/2ac to 3hs/1ac
23,228.5
54.9%
GT 3hs/1ac
4,087.0
9.7%
Total
42,283.9
Source: Southern Wildfire Risk Assessment
Figure D.5 depicts the WUI for the Town of Cary. The WUI is the area where housing development is built near or among areas of vegetation that may be prone to wildfire. Figure D.6 depicts the Fire Intensity Scale, which indicates the potential severity of fire based on fuel loads, topography, and other factors. Figure D.7 depicts Burn Probability based on landscape conditions, percentile weather, historical ignition patterns, and historical prevention and suppression efforts. Potential fire intensity is highest in west and northeast Cary; while these areas are within the WUI, these areas have lower burn probability. Because these areas fall within the WUI, there is development potentially at risk to wildfire.
Wake County Multi-Jurisdictional Hazard Mitigation Plan 2019
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