Interstate 64 has supplanted most of old US 460 as a more direct route. The stretch through Indiana and Illinois was eliminated in November 1976. Old US 460 has been redesignated in these areas as parts of State Road 66 and State Road 62 in Indiana; and part of Illinois Route 15, Illinois Route 142, and Illinois Route 14 in that state. However, its parent route, US 60 has not been supplanted by I-64 and converted to a state highway in the greater Louisville area.
