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Title:Structure-Specific Flood Risk Assessment: Village of Ashland, Cass County, Illinois
Author(s):Graff, Lisa; McVay, Brad
Subject(s):flood risk assessment
flood hazard mitigation
Hazus analysis
Geographic Coverage:Cass County, Illinois; Village of Ashland
Abstract:The Illinois Department of Commerce and Economic Opportunity (IDCEO) tasked the Illinois State Water Survey (ISWS) with developing a flood risk assessment for the Village of Ashland in Cass County, Illinois. The objectives of this project were to help raise flood risk awareness, provide tools to communicate flood risk, and support local efforts to reduce this risk. This project provides detailed data for each structure in the 0.2% annual chance floodplain in the community. The 0.2% floodplain is the largest magnitude frequency of flood hazard that is estimated for FEMA flood hazard mapping and encompasses the extents of lesser magnitude, higher frequency events. The risk data for each structure include the following: average annualized losses, flood depths for mult iple return periods, and chances of flooding over a 30-year period. These data will assist the Village of Ashland in preparing a cost-benefit analysis that contributes to the development of a comprehensive plan of prioritized mitigation projects and can be included inthe Cass County Hazard Mit igat ion Plan.
Issue Date:2020-06
Citation Info:Graff, L. and B. McVay. 2020. Structure-Specific Flood Risk Assessment: Village of Ashland, Cass County, Illinois. Illinois State Water Survey, Champaign, IL.
Genre:Technical Report
Sponsor:Illinois Department of Commerce and Economic Opportunity
Date Available in IDEALS:2020-10-20

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