Understanding Flood Risk
Identification of water resources, evaluation of risk, and planning for management policy provide the framework for truly understanding the cycle of water and what effect it has on the environment, property owners, and communities. Engineering solutions to address water management play a significant role in the overall education of water.
In this MooreWISE brief, Charlie Penland discusses the impact of water and provides an interactive graphic that allows readers to follow the cycle of water and learn more about the effect it has on the environment, property owners, and communities.
How is flood risk for a particular property defined? Most often FEMA Flood Insurance Rate Maps (FIRMs) are referenced in an effort to answer this question. According to the lines on the maps, a property is “in” or “out” of the floodplain based on its location. However, during extreme event rainfalls, a significant number of flooded properties are often found to be outside of the designated floodplain. Because of the sudden effects brought on by surplus rainfall and the limited scope of floodplain mapping, FIRMs do not have the capability of telling the whole story. So then, how should flood risk be determined?