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Moline News

Posted on: June 16, 2017

Surveyors to Collect Data for Illinois Flood Risk Project

As part of an Illinois State Water Survey (ISWS) effort to determine the risk of flooding for individual homes and businesses in floodplains, licensed surveyors will visit properties in Moline starting June 20 and continuing through the end of October. 

Survey work will occur in the Mississippi River, Rock River, and tributary floodplains.  Teams of two surveyors will spend approximately 20 minutes on each property, measuring the elevation of the first floor and the lowest entry point for water flooding into a home.  Surveyors will not enter homes or businesses, but will work in close proximity to the exterior of buildings.  Property owners will be notified in advance via postcard mailings regarding the survey work to occur on their property.  Homeowners can access a schedule of site visits and more information about the project as the season progresses at

This project is part of a long-term effort to create a statewide database of elevations for individual structures and flood risk in communities. The data are crucial in determining the level of risk and creating action plans to prevent flood damage to homes and businesses, according to Lisa Graff, GIS Team Manager with Illinois State Water Survey (ISWS) at the University of Illinois.  This year approximately 3,200 homes will be surveyed in Rock Island County, plus 1,500 in Peoria County and 120 in Ottawa.

For additional information on the Flood Risk Project, please contact Lisa Graff, Illinois State Water Survey GIS Team MGR MAPMOD, at (217) 265-9430 or via email at

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