2004 UC Proceedings Abstract
 Flood Plain Modeling/Mapping at DuPage County, IL Requires GIS Track: Water Resources Author(s): John McLaughlin Modern flood plain modeling and mapping is done at the County of DuPage, IL, using Esri software products. GIS methodology is applied to DuPage's hydrology/hydraulic/statistical/mapping approach which creates reproducible, defensible flood study models and digital map products. This paper presents an overview of the workflow process from raw data to flood maps. The analytical modeling approach was established in the early 1990s. What was needed was GIS to organize the spatial data progression and to establish routine map making capabilities. All work to date uses Workstation ArcInfo except for the map making, which relies upon Desktop ArcGIS. This approach has earned DuPage the Cooperating Technical Partner status with FEMA, which recognizes its Digital Flood Insurance Rate Map and its Regulatory Flood Map. This case study will help other governments consider other approachs for producing all digital flood plain maps. John McLaughlin County of DuPage, Illinois Development & Environmental Concerns 421 N. County Farm Road Wheaton , IL 60187 US Phone: 630-682-7360 E-mail: John.McLaughlin@dupageco.org |
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