MoDOT - Missouri Department of Transportation

07/22/2026 | Press release | Distributed by Public on 07/22/2026 10:51

MoDOT to close NB I-55 in Jefferson County at Joachim Creek overnight this Saturday, July 25

JEFFERSON COUNTY- Drivers who use northbound Interstate 55 between McNutt Street and Route Z should be aware the interstate will close overnight this Saturday to shift northbound I-55 onto the median pavement. Weather permitting, crews will close all lanes of northbound I-55 on Saturday, July 25 between 11 p.m. and 5 a.m. Sunday, July 26.

A signed detour will direct traffic around the closure. Drivers will exit I-55 at McNutt Street (Exit 178), turn right and travel eastbound on McNutt Street to U.S. Route 61/67.

For additional information about current and upcoming detours and project status, please visit the I-55 Corridor Improvement project website at: Interstate 55 Corridor Upgrades in Jefferson | Missouri Department of Transportation (modot.org).

For up-to-date traffic and travel info, motorists can check MoDOT's Traveler Information Map at http://traveler.modot.org/map/.

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MoDOT - Missouri Department of Transportation published this content on July 22, 2026, and is solely responsible for the information contained herein. Distributed via Public Technologies (PUBT), unedited and unaltered, on July 22, 2026 at 16:51 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]