St. Louis District

traveler information map
Traveler Information Map

MoDOT worker pouring asphalt
Work Zones

I-70 and I-435 Updated Interchange
Major Projects

Route AC Corridor Upgrades Project Public Meeting, May 6

MoDOT held a public meeting for its Route AC (New Halls Ferry Rd.) corridor upgrades project on May 6.  The meeting focused on proposed plans for improvement of Route AC from south of I-270 to St. Cyr Rd. If you were not able to attend you may view proposed plans and provide comments by clicking on the button below.

CLICK HERE FOR PROJECT INFO AND COMMENT ON THE PROJECT

Construction Road Report

A listing of anticipated construction for the upcoming week in the greater St. Louis area. Updated Wednesdays.

This week's report

St. Louis Construction by Area

View Construction Projects by area in the St. Louis region.

Visit the Page

Microfilm Requests

Fill out the linked form to requests copies of available microfilm for state maintained roadways.

Request plans

Planned events on state roadways

Information on planning events on state-maintained roadways (interstates and state numbered or lettered routes)

Planned events

General St. Louis Transportation Information

This page hosts information regarding St. Louis area transportation such as the St. Louis area Mobility scorecard,  information about highway features, and contacting the district.

Learn More

Frequently Asked Questions

Find answers to common transportation questions in the St. Louis area.

View the FAQ

news Latest News

  • MoDOT to close ramp from Foristell/Route T/W to westbound I-70

    09/23/2026

    ST. CHARLES COUNTY – Crews with the Improve I-70 Warrenton to Wentzville Project will close the ramp from Foristell/Route T/W interchange to westbound I-70 for grading work. All work is weather permitting.

    The ramp will close from 9 p.m. to 5:30 a.m...

  • St. Louis Work Zones September 24-30

    09/23/2026

    ST. LOUIS – Crews with the Improve I-70 Warrenton to Wentzville Project will shift lanes of Interstate 70 in St. Charles County between the Foristell weigh station and Wentzville Parkway (mile markers 205.4-208) starting overnight Thursday, October 1...

More News
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St. Louis Careers

Build your career at MoDOT!

Our mission is to provide a world-class transportation system that is safe, innovative, reliable and dedicated to a prosperous Missouri.

Take a look at current openings in the St. Louis District.

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About the District
Lane Miles
5,850
Bridges
1,153
District Engineer: Tom Blair

MoDOT St. Louis District | 1590 Woodlake Drive, Chesterfield, MO 63017 | (888) 275-6636 

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