Foristell, MO – Drivers along Interstate 70 in St. Charles County should prepare for a significant detour starting 9 p.m. Monday, October 27, as MoDOT crews close the North Service Road west of Route W in Foristell for 60 days. The closure is part of the Improve I-70 Warrenton to Wentzville Project, which aims to expand I-70 to three lanes in each direction.
According to the Missouri Department of Transportation (MoDOT), motorists heading west on the North Service Road can access the area via the westbound I-70 on-ramp and exit at a temporary access point. Eastbound service road traffic will be detoured to the Elm Street interchange in Wright City (Exit 200). The North Service Road east of Route W will remain open with two-way traffic.
MoDOT said the closure will allow crews to reconstruct the I-70 and Route T/W interchange, adding new pavement and bridge work to improve traffic flow. All work is weather-permitting and expected to continue through late December.
The interchange improvements are part of a broader multi-year I-70 expansion project covering the eastern portion of the highway, with completion anticipated by 2028.
Drivers are encouraged to plan alternate routes and allow extra travel time during the closure.
This article was produced by a journalist and may include AI-assisted input. All content is reviewed for accuracy and fairness.
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