St. Louis area drivers, brace yourselves for a busy construction season ahead. The Missouri Department of Transportation (MoDOT) has announced a massive rollout of 180 projects set to touch roadways across four counties and the city proper. With a price tag of nearly $1.7 billion, these initiatives aim to rehabilitate bridges, refresh signals and sidewalks, and resurface roads, ensuring the infrastructure is safe and functional for its users.
One of the hefty investments includes the Improve I-70 Design-Build Project #2, which received a $600 million investment courtesy of the state legislature. Focused on enhancing the stretch between Warrenton and Wentzville, construction aims to aid in the region's current and future growth, despite making drivers expect closed and shifted traffic lanes in the process. According to MoDOT, "Drivers can expect closed and shifted traffic lanes between Weber and Loughborough as crews remove and replace the driving surface on several bridges."
Several projects have already begun, like the Interstate 55 Corridor Upgrades in Jefferson County, which proposes an added lane and improved intersections along an eight-mile section of I-55. Meanwhile, the I-64 at the Missouri River will see the rehabilitation of the westbound Boone Bridge, shuffling one lane of traffic in each direction to the eastbound bridge starting this spring. Completion is expected in early 2026.
Another project to keep an eye on is the I-270 bridge replacement over Conway, which widens the bridge north of the I-64 interchange. MoDOT plans to finish these improvements by late 2025, aiming to accommodate the ever-growing demands of traffic flow. Tucked within the flurry of activity, the Route 61/67 (Lindbergh) will be getting signal and sidewalk updates to meet Americans with Disabilities Act requirements and will face a full closure come summer 2025 for the replacement of the bridge over Deer Creek. But, the left turn lane from northbound Lindbergh to German is already closed, trapping two gas lines needing relocation by utility crews.
As construction across the region powers forward, updates will be available on the MoDOT website for those navigating the orange cones and detour signs. These significant investments in St. Louis' infrastructure paint a picture of progress, fraught with the inevitable tests of patience for daily commuters. For the latest on these projects and their impacts on local traffic, visit MoDOT's official project page.
