MoDOT to close I-70 at Cave Springs for 20-minute intermittent closures overnight Sept. 21-22

ST. CHARLES COUNTY – Drivers on Interstate 70 at Cave Springs Road may experience temporary delays overnight Thursday, September 21 and Friday, September 22. Crews will be placing girders over I-70 from 10 p.m. until 5 a.m.

Motorists can expect a two-lane closure approaching the bridge construction and then 20-minute intermittent full closures of the interstate while girders are swung into place.

Crews will start setting the girders on westbound I-70 at Cave Springs on Thursday, September 21. Then, crews will place girders on eastbound I-70 at Cave Springs the following night, Friday, September 22. All work is weather permitting.

The Cave Springs and Zumbehl interchanges are being converted into single point urban interchanges (SPUI) for the I-70 Cave Springs to Fairgrounds Design-Build Project. As construction on this project progresses, both interchanges will remain open to drivers.

For more information, visit for project updates.



Districts Involved
St. Louis