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7th Avenue Creek Construction Set to Begin

To address large-scale flooding along the 7th Ave. Creek between S. 10th Ave. & Indiana Ave., in 2017 the City developed the 7th Avenue Creek Master Plan.

The final engineering design on Phase 1 of the Master Plan has been completed. Phase 1 includes:

  • Restoring a natural meandering creek from S. 10th Avenue to Washington Avenue
  • Stabilizing streambanks
  • Upsizing culverts underneath Illinois, Indiana, and South Avenues
  • Removing a portion of S. 9th Avenue between E. Main Street and Illinois Street
  • Adding a walking path along the creek between S. 10th Avenue and Indiana Avenue.

Project Benefits

This project will lower floodplain elevations, which will remove structures, for example homes, out of the floodplain and reduce the number of storms that will cause the creek to overtop the roadways. The project also will improve the water quality of the creek. 

Project Timeline

Construction will begin in February with tree removal and clearing.  This is necessary to change the elevation and physical location of the creek. Upon project completion, new naturalized areas and trees will be planted.

Utility installations and culvert replacements are expected to begin in March.  Be alert for road closures, as culvert replacements at Illinois, Indiana, and South Avenues will close the roadways for multiple weeks at a time. To minimize traffic disruption, only one or two of the culverts will be worked on at a time. 

Project Financing

The City pursued and was awarded three separate grants, totaling $1.7 million, nearly half of the $3.6 million total project cost.

Construction updates will be available on our project website:  https://www.stcharlesil.gov/projects/7th-avenue-creek-project

updated Feb 23, 2021