| Caption: | 1926 era Highway markers for AR 12 and AR 112 |
| Map: | 1926 Arkansas numbering.png |
| Map Notes: | A map of highways in the state of Arkansas, 1926 |
| Formed: | 1926 |
| Us: | National Road nn |
| Statehwy: | State Road nn |
| Links: | AR |
See main article: List of Arkansas state highways. In 1926, the U.S. state of Arkansas renumbered its highways into a more traditional format. The system to be replaced was established in 1924 as Arkansas' first comprehensive highway plan.[1] Roads were designated as "primary federal aid roads", "secondary federal aid roads", or "connecting state roads". The Arkansas State Highway Commission implemented the system of United States Numbered Highways also around 1926, and thus Arkansas decided to number its highways and to drop the 1924 letter-number format. This resulted in the first true numbering of state highways in Arkansas. The U.S. route designations 61, 63, 64, 65, 67, 70, 71, 165, and 167 would have conflicted with state highway designations, so there were no Arkansas state highways with these numbers. The highest number was 115, with 116 and up reserved for future use.
| - | 1924 designation | meaning |
|---|---|---|
| A1-A9 | Primary federal aid roads | |
| B1-B43 | Secondary federal aid roads | |
| C1-C46 | Connecting state roads |