This article originally ran in St. Louis Business Journal on July 9, 2024.
Construction crews began work Monday night on an ambitious $2.8 billion project that will expand Interstate 70 to three lanes across Missouri.
Crews are first tackling a stretch from Route J at Millersburg to Route M at Hatton, 7 miles of a 20-mile section that will ultimately add a third lane in each direction from Columbia to Kingdom City.
The overnight schedule is designed to minimize traffic disruptions as the highway work progresses from the center of the state to other portions at the east and west ends of the highway.
The project has been on MoDOT’s unfunded agenda for almost 20 years and is the largest interstate construction program since the early 1960s. The expanded highway portion will run from Blue Springs in Jackson County to Wentzville in St. Charles County.
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