MoDOT to close westbound I-70 ramp at I-70/I-64 interchange overnight October 26-27

ST. CHARLES COUNTY - Crews with the Improve I-70 Warrenton to Wentzville Project will close the westbound Interstate 70 exit ramp (exit 1A) from westbound Interstate 64 at the I-70/I-64/U.S. Route 61 interchange overnight Monday, October 26 and Tuesday, October 27 from 9 p.m. to 5 a.m. The southbound Route 61 exit ramp to westbound I-70 also will be closed for short 15-minute durations from 9 p.m. to 5 a.m. Crews will be setting bridge girders into place for a new westbound I-70 ramp to Route Z. Westbound I-64 traffic wishing to travel west on I-70 will detour to Route A to access westbound I-70. All work is weather permitting.

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.

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