HANNIBAL – September 8, Interstate 70 traffic shifts are planned in Warren County, beginning east of the Routes F/J/Elm St. interchange in Wright City extending to the St. Charles County line (mile marker 201.0 – 202.8), as work continues on the Improve I-70: Warrenton to Wentzville project. Eastbound traffic will shift right and westbound traffic will shift left onto the newly constructed pavement for the future eastbound I-70 to allow crews to construct all westbound lanes simultaneously.
After the traffic switch occurs, traffic barriers will be in place along the right and left shoulders of westbound I-70 for these areas with designated emergency pull-off locations. Two lanes of traffic will be maintained on I-70 during peak travel times, and the speed limit will remain 55 mph throughout the work zone. Westbound I-70 will have intermittent nighttime right lane closures during this time.
The above traffic impacts are scheduled through the end of 2026. Motorists are encouraged to pay attention in work zones, drive the posted work zone speed limit, and allow extra time for travel. All work is weather-dependent, and schedules are subject to change.
This work is part of the second project in MoDOT’s Statewide Improve I-70 Program. Improve I-70 Warrenton to Wentzville is a $600 million Design-Build project that will improve the 20-mile stretch of I-70 between Warrenton and Wentzville. The project was awarded to the Improve 70 Alliance team in November 2024. Construction is anticipated to be complete by the end of 2028.
Missouri’s FY2024 budget, approved through the state legislative process and signed into law by the governor, provides $2.8 billion in General Revenue to build a third lane of I-70 across the state. The program will plan, design, construct, reconstruct, rehabilitate, and add a third lane in each direction on nearly 200 miles of I-70, from Blue Springs to Wentzville.
For more information on the Improve I-70 Program and to sign up for program e-mails, visit http://www.modot.org/improvei70.
