Beginning in April 2020, MoDOT will begin work on the 1-270 Corridor project that spans Interstate 270 from James S. McDonnell Boulevard to Bellefontaine Road. The project will include reconstruction of several major interchanges (North Lindbergh, Hanley/Graham, Washington Elizabeth, West Florissant, etc.), adding an additional driving lane on 270 in both directions, signal updates and replacements, new bridges, and more. For more information on the project, visit the I-270 North project website.
To stay up to date on recent lane closures and detours, view the interactive 270 North Project Map here.