City of O'Fallon, Missouri
Services
Intersection Design
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IDOT, Region 5, District 8
I-270 over Mississippi River Phase II
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Missouri Department of Transportation
I-270 North Design-Build
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St. Charles County Transportation Department
I-70 Fifth Street Reconstruction
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MoDOT, St. Louis District
Riverview Drive / I-270 Interchange Reconstruction
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City of O'Fallon, Illinois
Porter-Simmons Roundabout