This inter-agency pilot project produced map products to provide risk communication for Illinois Mississippi riverfront communities. Structural flood damage assessments for all structures were developed using multi-frequency flood depth grids. Survey data was collected for the lowest entry point and first floor elevation for all residential, commercial and industrial structures within the 1% annual chance exceedance floodplain. Parcel data, GIS data, and elevation certificate data that have been prepared for structures in the floodplain was obtained from county assessors.
Raised Flood Risk Awareness and Flood Risk Action:
Data collected during this project is being used to inform residents of the specific flood risk to their home or business and provides valuable planning data for flood risk mitigation and emergency management planners. Maps were prepared for mitigation action illustrating high risk areas based on potential losses and populations at risk.
Reduced/Managed Flood Risk:
As a result of this project, state, county and local community officials now have access to enhanced flood risk information and tools to assist with community communication and decision making processes regarding land-use and future development in high risk flood areas. Information shared with these river communities has been used to inform and educate citizens about about flood risk and has yielded immediate life safety and resiliency benefits as well as improved planning for the future.