Item 26 - Updated Hazard Mitigation Plan

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Hazard Mitigation Plan | 2022 Flood Hazards - 82 - Q&A | ELEMENT B: HAZARD IDENTIFICATION AND RISK ASSESSMENT | B3a. Q: Is there a description of each hazard’s impacts on each jurisdiction (what happens to structures, infrastructure, people, environment, etc.)? (Requirement §201.6(c)(2)(ii)) A: See Impact of Flooding in the City below. Vulnerability of City to Flooding According to the 2021 County of Orange and Orange County Fire Authority, the largest impact to communities in a flood event is the loss of life and property to both private and public entities. Development in the floodplains of Orange County increases the risk of extensive property loss resulting in flooding and flood damage. The type of property damage resulting from flood events is dependent upon the depth and velocity of the floodwaters. Fast moving floodwaters can wash buildings off their foundations and sweep cars downstream. High waters combined with flood debris can damage infrastructure, pipelines, and bridges. Landslide damage related to soil saturation can cause extensive damage. Water saturation of materials susceptible to loss (i.e., wood, insulation, wallboard, fabric, furnishings, floor coverings, and appliances), in many cases, renders a home unlivable. Flooding impacts businesses when damaged property interrupts operation, forcing closure for repairs, and customer access is cut off. A community maintains economic vitality in the face of flood damage with quick response to the needs of businesses affected by the flood. Response to business damages can include funding to assist owners in elevating or relocating flood-prone business structures. Impact of Flooding in the City Floods and their impacts vary by location and severity of any given flood event, and likely only affect certain areas of the region during specific times. Based on the risk assessment, it is evident that floods will continue to have potentially devastating economic impacts to the City. Impacts that are not quantified, but anticipated in future events include: ✓ Injury and loss of life ✓ Commercial and residential structural damage ✓ Disruption of and damage to public infrastructure ✓ Secondary health hazards e.g. mold and mildew ✓ Damage to roads/bridges resulting in loss of mobility ✓ Significant economic impact (jobs, sales, tax revenue) upon the community ✓ Negative impact on commercial and residential property values ✓ Significant disruption to citizens as temporary facilities and relocations would likely be needed