Snapshot: Colts roundabout opens Current Publishing 6 years ago On May 31, the roundabout at 186th Street and Spring Mill Road opened to traffic. From left, Eric Holmes, Joe Edwards, Anthony Korty, Mayor Andy Cook, Jim Ake, Chuck Lehman, Andrea Langille and John Speidel cut the ribbon. (Submitted photos) On May 31, the roundabout at 186th Street and Spring Mill Road opened to traffic. From left, Eric Holmes, Joe Edwards, Anthony Korty, Mayor Andy Cook, Jim Ake, Chuck Lehman, Andrea Langille and John Speidel cut the ribbon. (Submitted photos) The new roundabout at 186th Street and Spring Mill Road has an Indianapolis Colts theme.