MoDOT - St. Louis

10/13/2026

ST. LOUIS- Yes, Mother Nature says the high temperature for Tuesday, October 13 is expected to hit 94 degrees. But if you see MoDOT snowplows on Missouri interstates and highways October 13 and October 14, it's because MoDOT is holding its annual winter operations drill.

The drill tests MoDOT’s winter battle plan to ensure its readiness to get travelers back on Missouri roadways as quickly as possible after winter storms.

During the drill, MoDOT snow vehicles will travel state highways and routes throughout the St. Louis area starting at 9 a.m. MoDOT employees will test vehicle equipment and drive assigned snow routes. The department’s emergency operations centers will activate, and emergency communications systems will also be tested.

Motorists may notice increased numbers of MoDOT vehicles on St. Louis area highways and state routes with snowplows attached during the drill.

10/10/2026

MoDOT to shift traffic on US 67 near Route CC beginning October 9
https://www.modot.org/node/98219

JEFFERSON COUNTY: Crews have begun work to 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 alignment under Route CC will accommodate one northbound lane and one southbound lane. The ramps currently carrying US 67 traffic around the new Route CC bridge will be reduced from two lanes to one lane. After crews have finished US 67 and the Route CC bridge, US 67 will carry two northbound and two southbound lanes under Route CC and the ramps will be used for accessing Route CC.
Following this phase, opening of the Route CC bridge is scheduled for early November.

10/09/2026

ST. CHARLES COUNTY- Crews with the Improve I-70 Warrenton to Wentzville Design Build Project have reopened the eastbound Interstate 70 exit ramp (exit 209) to Route Z after a 30-day closure. This work is part of the new Route Z bridge and the expansion of I-70 to three lanes in each direction.
City of Wentzville MO – Government

10/08/2026

ST. CHARLES COUNTY – Crews with the Improve I-70 Warrenton to Wentzville Project will close all lanes of Interstate 70 between Wentzville Parkway and Route Z for short
15-minute durations overnight Thursday, October 8 and Friday, October 9 from 9 p.m. to 5 a.m. Crews will be using large cranes and swing railroad ties into place on the temporary Norfolk Southern Railroad bridge over the interstate. All work is weather permitting.
This work takes place in both directions of I-70 between exit 208 and exit 209 and is part of the expansion and realignment of the interstate.
https://www.modot.org/node/98109
City of Wentzville MO – Government

10/07/2026

People who live, work, and commute along I-64 between Vandeventer and Compton may want to attend the upcoming open house style public meeting on next year's project along I-64, which includes a full closure on eastbound I-64, starting in fall 2027, that will last for about a year. The public meeting is October 21, 4-6 p.m. at 18 Rails at the City Foundry, 3700 Foundry Way. For more information on the public meeting, please visit: https://www.modot.org/node/98033

10/06/2026

PROJECT UPDATE 10-13-26: Due to the forecast of inclement weather, the information below regarding the westbound I-64 exit ramp to eastbound I-70 closure has been postponed. The 30-day closure of the ramp will occur Monday, October 19.

ST. CHARLES COUNTY – Crews with the Improve I-70 Warrenton to Wentzville Project will close the westbound Interstate 64 exit ramp to eastbound Interstate 70 (exit 1B) for 30 days starting Monday, October 12. All work is weather permitting.

The ramp will close as part of the reconstruction of the Interstate 70/64/U.S. Route 61 interchange.

Traffic wishing to access eastbound I-70 at the interchange can stay in the left lane of westbound I-64 (exit 1A) and exit at the Route Z interchange (exit 209) and turn around and continue east on I-70.

Motorists are encouraged to pay attention in work zones, drive the posted work zone speed limit, and allow extra time for travel. All work is weather-dependent, and schedules are subject to change.
https://www.modot.org/node/97951
City of Wentzville MO – Government

10/03/2026

MoDOT to close Sunridge Trail and Route 61/67 near Crystal City for drainage installation
https://www.modot.org/node/97152
JEFFERSON COUNTY: Starting Monday, October 5 at 7 a.m., the Missouri Department of Transportation will fully close Sunridge Trail at US 61/67 in Crystal City for drainage installation.

Construction will take place starting at 7 a.m. and the closure will continue until Wednesday, October 14 at 5 a.m. when the road reopens. Motorists can use Missouri Ave to access Sunridge Trail.

In addition, Missouri Department of Transportation will close Route 61/67 near Sunridge trail as well for drainage installation, on Wednesday, October 14 and Thursday, October 15. This closure will be in place from 7 p.m. to 5 a.m. nightly.

10/01/2026

Join us for an open house-style public meeting to learn about the potential interchange and intersection designs for the Forward 44: U.S. 50 Interchange Improvements Project.
https://www.modot.org/node/97696

🗓️ 4–6 p.m. | Thursday, October 15

📍Union Community Center, 1329 Union Avenue, Union, MO 63084


We are sharing potential designs so you can learn more about what Design-Build teams may consider for the project.


Your input matters. Join us in-person or view materials and complete the survey online by Friday, October 30.

🔗modot.org/projects/SLForward44

09/29/2026

POSTPONED: This work has been postponed due to weather conditions. A tentative closure date has not yet been determined. Once a date has been confirmed, MoDOT will send out a new update.

MoDOT to close Sunridge Trail and Route 61/67 near Crystal City for drainage installation starting Wednesday, September 30
https://www.modot.org/node/97152

JEFFERSON COUNTY: Starting Wednesday, September 30 at 7 a.m., the Missouri Department of Transportation will fully close Sunridge Trail at US 61/67 in Crystal City for drainage installation.

Construction will take place starting at 7 a.m. and the closure will continue until Saturday, October 10 at 5 a.m. when the road reopens. Motorists can use Missouri Ave to access Sunridge Trail.

In addition, on Friday, Oct. 2, 7 p.m. to 5 a.m. and Saturday, Oct. 3, 7 p.m. to 5 a.m. Missouri Department of Transportation will close Route 61/67 near Sunridge trail as well for drainage installation.

Traffic may use Route A exit to the northbound Interstate 55 to McNutt Street to navigate around the closure. Route 61/67 will reopen by Sunday, Oct. 4 at 5 a.m.

Message boards will be up along the route to alert traffic. All work is weather-dependent.

he route to alert traffic. All work is weather-dependent.

09/29/2026

PUBLIC INPUT NEEDED

Jefferson County — Route H Pipe Replacement
https://www.modot.org/node/97568

The Missouri Department of Transportation is seeking public input regarding a planned pipe replacement project on Route H, located 0.43 miles west of the Big River.

Project status: Design stage
Comments due: October 20, 2026

Submit comments online:
modot.org/projects/route-h-pipe-replacement-jefferson-county