2024 11-19 CC Packet - Laserfiche WebLink

Home

Ramsey County | Multi-Jurisdiction Hazard Mitigation Plan 39 3.7.7 VULNERABILITY ASSESSMENT 3.7.7.1 People Flash floods and river flooding can lead to injury or loss of life. In urban areas, rapidly rising water levels can trap residents in their homes, vehicles, or other spaces, often in immediate danger and requiring rescue. 3.7.7.2 Property Homes and businesses in low-lying areas and in flood-prone areas are at significant risk of flooding and damage. It is common for these structures to suffer structural damage, water in lower levels, and loss of personal property. Facilities in these areas can also see declines in property values and increased insurance costs. Hazus estimates from the 2019 plan estimate the number of households that are expected to be displaced from their homes due to the flood and the associated potential evacuation. Hazus also estimates those displaced people that may require accommodations in temporary public shelters. The model estimates 2,015 households may be displaced due to the flood. Displacement includes households evacuated from within or very near to the inundated area. Of these, the model estimates 342 people (out of a total population of 508,640) may seek temporary shelter in public shelters. 3.7.7.3 Environment Detrimental environmental effects of flooding can include soil and bank erosion, bed erosion, siltation or landslides. It can damage vegetation and pollutants carried by flood water can impact on water quality, habitats and flora and fauna. Flooding can however play a beneficial role in natural habitats. 3.7.7.4 County and Community Operations Essential facilities encounter the same impacts as other buildings within the flood boundary: structural failure, extensive water damage to the facility, and loss of facility functionality (i.e. a damaged police station will no longer be able to serve the community). However, none of Ramsey County’s essential facilities (care facilities, fire stations, police stations and schools) included in the 2019 Hazus analysis are located within the flood boundary. 3.7.8 CONSEQUENCE ASSESSMENT Impact on the Public • Risk of drowning, injury, or death due to sudden and fast-moving floodwaters. • Displacement of residents, leading to temporary or permanent relocation and the loss of personal property. • Health risks from contaminated water, including waterborne diseases and hazardous materials. • Disruption of daily life, including access to transportation, healthcare, and basic services.