Wake County Hazard Mitigation Plan - January 2020


4 Risk Assessment

Requirement §201.6(c)(2): [The plan shall include] A risk assessment that provides the factual basis for activities proposed in the strategy to reduce losses from identified hazards. Local risk assessments must provide sufficient information to enable the jurisdiction to identify and prioritize appropriate mitigation actions to reduce losses from identified hazards. Requirement §201.6(c)(2)(i): [The risk assessment shall include a] description of the type…of all natural hazards that can affect the jurisdiction.

Requirement §201.6(c)(2)(i): [The risk assessment shall include a] description of the…location and extent of all natural hazards that can affect the jurisdiction. The plan shall include information on previous occurrences of hazard events and on the probability of future hazard events.

44 CFR Subsection D §201.6(c)(2)(ii): [The risk assessment shall include a] description of the jurisdiction’s vulnerability to the hazards described in paragraph (c)(2)(i) of this section. This description shall include an overall summary of each hazard and its impact on the community. Plans approved after October 1, 2008 must also address NFIP insured structures that have been repetitively damaged by floods. The plan should describe vulnerability in terms of: A) The types and numbers of existing and future buildings, infrastructure, and critical facilities located in the identified hazard areas; (B): An estimate of the potential dollar losses to vulnerable structures identified in paragraph (c)(2)(ii)(A) of this section and a description of the methodology used to prepare the estimate; and (C): Providing a general description of land uses and development trends within the community so that mitigation options can be considered in future land use decisions.



This section describes the Hazard Identification and Risk Assessment process for the development of the Wake County Multi-Jurisdictional Hazard Mitigation Plan. It describes how the County met the following requirements from the 10-step planning process:

Planning Step 4: Assess the Hazard

 Planning Step 5: Assess the Problem As defined by FEMA, risk is a combination of hazard, vulnerability, and exposure. “It is the impact that a hazard would have on people, services, facilities, and structures in a community and refers to the likelihood of a hazard event resulting in an adverse condition that causes injury or damage.” This hazard risk assessment covers all of Wake County, including the unincorporated County and all incorporated jurisdictions participating in this plan. It should be noted that the City of Durham, the Town of Clayton, and the Town of Angier each have a small area of land that crosses intoWake County; however, risk was not assessed for these communities as they are not participants of this plan. Population and building counts presented in this risk assessment do not include these communities. Instead, these communities are addressed in full in their own respective hazard mitigation plans. The risk assessment process identifies and profiles relevant hazards and assesses the exposure of lives, property, and infrastructure to these hazards. The process allows for a better understanding of the potential risk to natural hazards in the county and provides a framework for developing and prioritizing mitigation actions to reduce risk from future hazard events. This risk assessment followed the

Wake County Multi-Jurisdictional Hazard Mitigation Plan 2019


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