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Floodplains and Flooding

Public Notice: IL Dept. of Natural Resources Office of Water Resources

7th Avenue Creek – Conditional Letter of Map Revision (CLOMR)

The City of St. Charles has requested Illinois Department of Natural Resources, Office of Water Resources (IDNR-OWR) concurrence with a regulatory floodway map and flood profile revision on 7th Avenue Creek.  The proposed floodway map and flood profile revision is the result of an updated flood study of 7th Avenue Creek and flood control improvements identified as part of the Master Plan Development process by the City of St. Charles.  The project reach extends from the Fox River to Tyler Road, a distance of about 2 miles. 

The improvements include the removal and replacement of numerous roadway crossings and channel work. The review and approval by the IDNR-OWR will ensure that any future improvement projects completed by the City will meet the requirements for reduction of the regulatory floodway map and flood profile revision on the 7th Avenue Creek through a Letter of Map Revision (LOMR) process. 

For More Information

Additional information regarding the request can be found in the notice provided by the INDR-OWR (see Key Documents below).  Inquiries and requests to review the complete plans may be directed to Gary Jereb of the Bartlett Office at 847/608-3116. 

Additional information on this project can be found on the IDNR-OWR website: www.dnr.illinois.gov/waterresources

Annotated floodplain maps and other information on this project can be reviewed at City of St. Charles – Public Works, 1405 S. 7th Avenue, St. Charles, IL 60174 and on the City’s website: https://www.stcharlesil.gov/flood.

Contact Information

Chris Gottlieb, Public Works Manager – Engineering for St. Charles can be contacted at (630) 377-4408 or cgottlieb@stcharlesil.gov.  


Information, Resources and Assistance

Flood Protection

For the purpose of identifying flood zones to determine flood insurance rates, the Flood Insurance Rate Maps prepared by the Federal Emergency Management Agency for Kane County are currently used.

For the purpose of regulating property development, the above mentioned FEMA Flood Insurance Rate Maps are used to determine whether or not a property is subject to special building requirements.

Information on whether your property is in the 100-year floodplain can be obtained by visiting the Public Works Engineering Division at 1405 South 7th Avenue. Maps are available to look at as well as other flood-related information. The City also has Elevation Certificates for new development available dating back to 1992. Contact the Public Works Engineering Division at (630) 377-4486 for further assistance.

updated Jul 31, 2023