Active / Under Construction
I-270/I-255 Interchange Reconstruction
I-270 & I-255, South County St. Louis, St. Louis, MO
About This Project
MoDOT's reconstruction of one of the St. Louis metro's most congested interchanges, adding directional ramps, new pavement, and improved sightlines. The project affects 100,000 daily commuters and involves coordination with multiple IBEW and Operating Engineers union crews across 36 months of active construction.
Project Details
- Category
- Infrastructure & Bridges
- Contractor
- Millstone Weber
- Owner / Client
- Missouri Department of Transportation
- Start Date
- April 2023
- Estimated Cost
- $200,000,000.00