ST. CHARLES COUNTY – The Missouri Department of Transportation invite the public to an open house-style meeting to discuss the Route 94 and Route D Improvement Project. The meeting will be held Wednesday, July 8, 2026, from 4 p.m. to 6 p.m. at the Weldon Spring Site Interpretive Center, 7295 South Highway 94, St. Charles, MO 63304. MoDOT is impleme...

An open-house style public meeting for the Route 115 (Natural Bridge Rd.) Safety and Operational Improvements project will be held from 4-6 p.m. Tuesday, July 7 at the Pine Lawn City Hall, 6250 Steve Marre Ave. 63121. The project covers the corridor from Lucas and Hunt Rd. to St. Louis City limits.

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

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

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

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

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.

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