Interstate 70 and Business Loop 70 in Columbia

Roundabout for Business Loop 70, Columbia, Mo.

Missouri has begun to install roundabouts at some complex intersections. In Columbia, a roundabout was installed at Interstate 70, Business Loop 70, and Creasy Springs Road. This may have been the first roundabout completed in Missouri. Another roundabout in Cape Girardeau was completed at about the same time (February 2001). Other roundabouts have been proposed at a variety of locations in Missouri.

Early in 2003, a roundabout on Old 63 near the relocated Route AC opened in the southeast part of city, making it Columbia's second roundabout.