![[Color US signs]](../pics/uscolor.jpg)
In the early 1950s, Arizona experimented with color US signs. By the late 1950s the state had switched to the standard black-on-white shields. This assembly was in Tucson. (Photo courtesy of James H. Lindsay).
In the early 1950s, Arizona experimented with color US signs. By the late
1950s the state had switched to the standard black-on-white shields.
This assembly was in Tucson. (Photo courtesy of James H. Lindsay).
Arizona has seen quite a few of its US routes decommissioned since the rise of the Interstate systems. At one time Phoenix had four US highways running through it; now there is just one.
Routes that were on Arizona's original 1927 highway plan are marked with a *
| US 60* | US 64 | US 70* | US 89* | US 89A | US 93 |
| US 95 | US 160 | US 163 | US 180 | US 191 |
| US 66* | US 80* | US 91* | US 164 | US 260* | US 466 | US 666 |
Last updated 1/1/2001