Highway Departments:
- Cass County
- Christian County
- Douglas County
- Logan County
- Moultrie County
- Montgomery County
- Sangamon County
- Vermillion County
Cities/Townships:
- City of Charleston, IL
- Rochester Township
- Village of Divernon
Contractors:
- Freesen, Inc.
- PS Deppe
- TMF Construction Company
- United Contractors Midwest (UCM)
Illinois Department of Transportation:
- District 5 - Paris
- District 6 - Springfield
- District 7 - Effingham
- District 8 - Collinsville
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