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MoDOT hosted a groundbreaking ceremony for the second project in the Improve I-70 Program on March 20 in Foristell. Members of MoDOT’s leadership, its contractor team and U.S., state and local elected officials met to break ground on the stretch of Interstate 70 from Warrenton to Wentzville.
The ceremony kicked off construction in the area, and completion is anticipated in late 2028. This project was awarded to the Design-Build contractor team the Improve 70 Alliance, made up of Emery Sapp & Sons, Clarkson Construction, HNTB and Bartlett and West. The project team has committed to keeping two lanes of travel open on I-70 in both directions during peak travel times and asked the public to do their part to keep the work zone safe during construction.
This project includes the following improvements:
- Constructing a third lane in each direction on I-70 from Warrenton to Interstate 64 in Wentzville, including replacing the existing I-70 lanes with new full-depth concrete pavement.
- Interchange improvements at I-70 and the I-64/U.S. Route 61 interchange.
- Interchange and outer road improvements in Warrenton, Wright City, Foristell, and at Missouri Route Z.
- Realignment at the railroad bridge on I-70 between Wentzville Parkway and Route Z.
- Adding a third travel lane to eastbound and westbound I-64 between I-70 and Missouri Route K.
For more information about this phase of the Improve I-70 Program, visit the project website.
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