MoDOT selects KCI for the Interstate 55 Design-Build Project

JEFFERSON COUNTY– The Missouri Highways and Transportation Commission (MHTC) announced the selection of the Interstate 55 Corridor Improvements Design-Build Project to the KCI Team during its monthly meeting held in St. Charles County today.

The selected team had to meet or exceed several goals including: maximizing reliability and safety on I-55 and US 67; providing a durable and maintainable transportation system compatible with regional development; construct the project safely and minimize impacts to customers; and complete the project on schedule utilizing a diverse workforce.

The proposal from the KCI Team – comprised of KCI Construction Company, Bartlett & West, and Wilson & Company – was deemed to be the apparent best value to taxpayers based on the project goals. The project will cost approximately $246 million to construct and will be complete by the end of 2026.

Project details include:

  • Constructing an additional lane on I-55 in both directions from Route Z to US 67
  • Replacing intersection of US 67 and Route CC with grade separated interchange
  • Constructing new interchanges at Route Z, McNutt, and US 67/I-55
  • Adding lanes at the SB I-55 to SB US 67 ramp and the NB 67 to NB I-55 ramp
  • Replacing 14 bridges
  • Rehabilitating 12 bridges

“The KCI Team proposal extends the southbound third lane from Route Z to the US 67 interchange eliminating the bottleneck drivers experience in the evening rush,” said Justin Wolf, MoDOT I-55 Project Director. “The proposal also replaces the existing signalized intersection at US 67 and Route CC with an interchange that will allow free flow of US 67 under a new Route CC bridge.”

Brent Krueger, Vice President of KCI Construction Company commented.

“KCI is honored to be part of the team for this project.  Our organization and our partners are thankful for the opportunity to serve MoDOT and the community in this important project for the region.  We look forward to delivering on our common goals and commitments.”

This section of I-55 was built in the 1960s, over 50,000 vehicles travel through this corridor daily.

Construction of the project minimizes impacts to the traveling public, traffic will continue to use two lanes northbound and southbound on I-55 and US 67 during daytime hours.

For more information, visit I-55 Corridor Improvements | Missouri Department of Transportation ( for project updates.



Districts Involved
St. Louis