I-55 Festus

Project Type: Design/Build, Featured,

Owner: MoDOT

Location: St Louis, MO

KCI Role: General Contractor

Value: $206,000,000

Delivery Method: Design Build

Completion Date: 2026

Designer: Bartlett & West

The I-55 Corridor Improvements project area includes the cities of Pevely, Herculaneum, Festus, and Crystal City. The purpose of this project is to address traffic and safety concerns along the I-55 corridor and account for future development and growth patterns in the region. KCI was the selected Design-Build contractor for this project that includes an upgrade to the 7-mile alignment on I-55 from Rte. Z in Pevely to Rte. 67 in Festus along with 1-mile of alignment on Rte. 67 from I-55 to Rte. CC in Festus, and  adding a third lane on I-55. This project requires KCI to rehabilitate or replace a total of 27 bridges. All this will be done while keeping the existing 2 lanes of traffic open during peak hours for traffic. Our design team consists of Bartlett & West as Lead Design with Wilson Company as a Major consultant with additional support from Terracon, Civil Design and HG Consult.