MoDOT - Missouri Department of Transportation

02/18/2026 | Press release | Distributed by Public on 02/18/2026 09:16

Route A ramp to NB I-55 in Jefferson County to close overnight Thursday

JEFFERSON COUNTY- Crews will close the entrance ramp from Route A to northbound Interstate 55 from 8 p.m. Thursday, February 19 to 4 a.m. Friday, February 20.

The entrance ramp will close for crews to set noise wall panels along the entrance ramp to northbound I-55. All work is weather permitting.

Drivers on Route A can use US Route 61/67 to access northbound I-55 via the McNutt Street interchange. All detours will be signed.

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 February 18, 2026, and is solely responsible for the information contained herein. Distributed via Public Technologies (PUBT), unedited and unaltered, on February 18, 2026 at 15:16 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 If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]