The route that Junction Motor Speedway was recently constructed on was established in what year by the US Department of Agriculture Bureau of Public Roads?
Junction Motor Speedway Junction Motor Speedway is a recently constructed 3/8 mile dirt oval that is located just west of McCool Junction, Nebraska, United States, along U.S. Route 81.
1969 Iowa highway renumbering On January 1, 1969, the Iowa State Highway Commission, now known as the Iowa Department of Transportation, renumbered several state highways. The changes to the highway system fixed a number of issues: creating continuous route numbers across state lines, removing duplicate route numbers where they were unnecessary, and extending route numbers in some locations. Twenty-six sections of highway were assigned new route numbers, duplicate route numbers were removed on eleven sections, and one route number was extended to another section.