ST. CHARLES COUNTY – Crews with the Improve I-70 Warrenton to Wentzville Project will close the eastbound Interstate 64 exit and entrance ramps at Prospect Road for 30 days beginning Tuesday, May 26 as part of the Interstate 64 pavement replacement from Prospect Road to Lake St. Louis Boulevard. All work is weather permitting.
The eastbound I-64 exit ramp to Prospect Road closes at 6 a.m. May 26 and the Prospect Road to eastbound I-64 entrance ramp will close at 9 a.m. on May 26 to allow for the removal and replacement of the existing deteriorated eastbound I-64 pavement.
Currently, eastbound I-64 lanes are narrowed and shifted to the left between Prospect Road and Lake St. Louis Boulevard with nightly lane closures from 8 p.m. to 5:30 a.m. The pavement reconstruction is expected to be completed July 1.
This work is part of the widening of Interstate 64 with adding a third lane in each direction between the I-70/I-64 interchange and Route K.
The Improve I-70 Warrenton to Wentzville Project covering the eastern portion of I-70 was awarded in November 2024. Construction is tentatively set to take place 2025-2028.
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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