Iowa Registered Routes
This section identifies all of the routes officially registered with the Iowa State Highway Commission under the 1913 Iowa Highway Route Registration Act, which required routes of 25 miles or more in length be registered. The Iowa State Highway Commission was given the authority to determine which road association would be granted permission to use of the route names, and color combinations and designs of the route markings. The registration process continued through 1924. There were 64 routes registered with the Iowa State Highway Commission during this period.
Profiles for routes beginning with: