SECTION 4: RISK ASSESSMENT
Category
Consequences
Continuity of Operations (including Continued Delivery of Services) Property, Facilities and Infrastructure
Landslide is unlikely to affect continuity of operations in Wake County.
Buildings and infrastructure may incur minor damages as a result of landslide; however, vulnerability in Wake County is low. Environmental impacts are expected to be minimal. Landslide may cause terrain and drainage changes and may temporarily increase sediment loads in nearby waterways.
Environment
Economic Condition of the Jurisdiction Public Confidence in the Jurisdiction’s Governance
Economic impacts are not expected.
Any landslide occurring in Wake County is unlikely to be severe and would not be expected to affect public confidence.
Hazard Summary by Jurisdiction The following table summarizes landslide hazard risk by jurisdiction. Probability was determined to be slightly higher for jurisdictions in western Wake County where USGS mapping indicates there is moderate susceptibility and incidence. It should be noted that this probability rating reflects a low-consequence event and that the probability of a significant landslide is unlikely across the entire county. All other factors do not vary across jurisdictions.
Jurisdiction Wake County
Probability Impact
Spatial Extent
Warning Time
Duration
Score
Priority
2 2 2 1 1 2 1 2 2 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1
3 3 3 3 3 3 3 3 3 3 3 3 3
1 1 1 1 1 1 1 1 1 1 1 1 1
1.5 1.5 1.5 1.2 1.2 1.5 1.2 1.5 1.5 1.2 1.2 1.2 1.2
L L L L L L L L L L L L L
Apex Cary
Fuquay-Varina
Garner
Holly Springs
Knightdale Morrisville
Raleigh
Rolesville
Wake Forest
Wendell Zebulon
Wake County Multi-Jurisdictional Hazard Mitigation Plan 2019
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