Bypass routes are a type of bannered highway usually used when the main route of the highway goes through a town and an alternate route of the same highway goes around the highway. The routes were originally designated "truck routes", but the designation was changed to "bypass" in 1959-1960. In a few cases, both a bypass and a business route exist, sometimes without a non-bannered highway (this is the case in Lexington, Kentucky with U.S. Highway 60. Bypass routes are less common than business routes. A Business Route can be a branch from an Interstate, U.S. or State Highway route. ... City nickname: Horse Capital of the World Location in the state of Kentucky County Fayette Mayor Teresa Isaac Area - Land - Water 285. ... United States Highway 60 is an east-west United States highway, running 2,670 miles (4,300 km) from Virginia to Arizona. ...
Originally, the route came into St. Louis via Edwardsville, Mitchell, down what is now ILL 203 to Veterans Bridge and later across the Chain of Rocks Bridge, but later moved south and the original route was called Bypass 66.
Route 50 still exists and goes north toward Washington, so don't fall under the spell of the old road appearance into thinking that is old Route 66.
Route 66 can be reached on the east side of Flagstaff from the interstate and you follow the old road on the north side of the railroad tracks.