St. Louis

MoDOT Closes Key I-170 Ramp to I-70/Airport for Bridge Construction, Delays Expected Near Airport

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Published on September 18, 2025
MoDOT Closes Key I-170 Ramp to I-70/Airport for Bridge Construction, Delays Expected Near AirportSource: Unsplash/Danny Burke

Heads up, drivers: if you're planning to hit the skies or navigate the roads around the airport this weekend, you'll need to chart a different course. The Missouri Department of Transportation (MoDOT) announced that a key off-ramp will be off-limits for a few days due to bridge construction.

Starting tomorrow at 9 p.m. through next Monday at 5 a.m., the northbound I-170 exit ramp to westbound I-70/Airport (Exit 7C) will be completely closed, MoDOT shared the details in a recent post on their website. This shutdown, is for some necessary bridge work that, as MoDOT points out, will only occur "weather permitting."

With this closure, drivers are advised to plan ahead and seek alternative routes to avoid potential delays. Detour signs and traffic management personnel will be strategically placed to assist motorists in navigating around the restricted section.

Those who frequent this intersection know it as a vital juncture, especially for those catching flights out of the city or returning home. MoDOT has not specified the nature of the bridge work, but it must be significant enough to warrant the temporary yet impactful closure of such a major ramp. Commuters and travelers alike should heed this warning and allow extra time for their trips, the disruption could affect more than just those headed to the airport.

For real-time traffic updates and further details on the closure, MoDOT encourages drivers to visit their website. Staying informed can make all the difference in keeping your weekend travel plans running smoothly despite this roadblock.