St. Louis Belt Route System
There have been 3 interstates that comprised the bypass system of St. Louis back in the 1960's and 1970's. In 1974-1976, the planners changed all that, putting all on a single route. Only one route number has been consistent ever since the first stretch opened in 1962.
The interstates that made up the belt route system.
Interstate 270. (1962 - present)
Interstate 244 (1967 - 1976).
Interstate 255 (1967 - 1976; 1985 - present).
NOTE: The 270 link takes you to the IL Interstate 270 page, the 244 link takes you to the MO I-270 page.
Interstates | Missouri | Illinois | Home