I-70 shapes Montgomery County towns and traffic

Interstate 70 crosses Montgomery County from east to west. It ties the county to Warrenton and St. Louis on one side and Columbia on the other.

Several town and service clusters sit on or near the highway, including New Florence, Jonesburg, Danville, and Montgomery City. That is why gas, food, lodging, and daily errands often gather near interchanges.

For drivers, the caution is practical. I-70 carries heavy through traffic, winter-weather advisories, and work zones. A closure can push cars and trucks onto smaller roads. That matters for commuters, school trips, freight, and anyone trying to cross the county during a storm.

Use the MoDOT Traveler Information Map for current closures, work zones, and winter road reports before a trip.