MoDOT Kicks Off I-55 Corridor Improvements Study with Sept. 22 Virtual Public Meetings

JEFFERSON COUNTY - The Missouri Department of Transportation (MoDOT) is hosting virtual public meetings to hear from motorists who travel Interstate 55 between the Route Z and Route 67 interchanges in Jefferson County.

The public meetings will be held via Zoom at 4 p.m. and 5:30 p.m. on Wednesday, Sept. 22. The same information will be presented at both meetings, and registration is required to attend at registered, attendees will receive information on joining the Zoom.

The meeting is the first for the I-55 Corridor Improvements Conceptual Study, which will analyze the current conditions along the interstate and identify potential solutions. During the public meetings, MoDOT will introduce the project, present the corridor’s existing conditions and obtain feedback from participants.

Last July, the Missouri Highways and Transportation Commission approved a five-year plan for improving state highways and projects that included $112 million for upgrading I-55 in Jefferson County from north of Route Z near Pevely to one mile south of Route 67 near Crystal City and Festus.

During the seven-month conceptual study, MoDOT will look at safety, design standards, geometry, traffic congestion, bridge conditions, utilities, local coordination, and future changes and growth in the area. Additionally, the agency will examine how the corridor can be brought up to current safety and design standards.

To learn more about the study, visit



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