JEFFERSON COUNTY – Starting at 6:00 p.m. on Friday, October 9, crews will shift one lane of US 67 onto the newly constructed US 67 traveling under Route CC. This change is expected to remain in place through October.

During this time, the new US 67...

DELAYED: The nightly closures scheduled for this week have been postponed due to weather. MoDOT will send an update once the new date is scheduled. 

JEFFERSON COUNTY- Drivers should be aware of nightly closures in south Jefferson County on Wednesday...

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...

JEFFERSON COUNTY- Drivers should be aware that beginning at 8:00 p.m. Friday, June 19, MoDOT will shift southbound I-55 traffic onto newly constructed median pavement north of Route Z to north of the Joachim Creek bridge.

Once SB I-55 traffic is...

JEFFERSON COUNTY- Drivers should be aware of nightly closures of U.S. Route 67 near Interstate 55 in south Jefferson County beginning June 9. Crews will be milling and resurfacing US 67 near I-55. All work is weather dependent.

Crews will close...

JEFFERSON COUNTY- Crews will close Herky Horine Road under I-55 at 7:00 a.m. Monday, May 11 for one month to reconstruct Herky Horine Road. All detours will be signed.

For additional information about current and upcoming detours and project status...

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...

JEFFERSON COUNTY- Drivers who use southbound Interstate 55 between Route M and Route Z should be aware the interstate will close overnight this Friday for bridge construction. Weather permitting, crews will close all lanes of southbound I-55 on...

JEFFERSON COUNTY- A ramp closure scheduled for tonight in Jefferson County has been rescheduled until next week. Monday, February 16, MoDOT will close the northbound US Route 67 loop ramp to northbound I-55. The ramp will be closed from 9 p.m. Monday...

JEFFERSON COUNTY- Drivers in Jefferson County should be aware of an upcoming ramp closure this Friday, February 13. MoDOT will close the northbound US Route 67 loop ramp to northbound I-55. The ramp will be closed from 9 p.m. to 5 a.m.

 Northbound US...

March 2024 

MoDOT held the Interstate 55 Corridor Improvements Groundbreaking at the Herculaneum Fire Department on Friday, March 8 at 11 a.m.  The ceremony was open to the public and included MoDOT and its project contractor, KCI Construction Company...