I-270 Corridor Upgrades
MoDOT is working to improve a three-mile section of Interstate 270 in North St. Louis County with upgrades that were not included in either the I-270 North Project or the Chain of Rocks Bridge rebuild.
After attending the public meeting on March 25, 2026 or reviewing the information on the I-270 Corridor Upgrades webpage, please share your thoughts on the project. The deadline to comment is April 9, 2026.
