State Route 51 Northbound will be closed between Bell and Union Hills from 11 p.m. Friday to 5 a.m. Sunday.

An alternative route to the wrecked U.S. 89, south of Page, has problems.  The dirt-surfaced Navajo Route 20 runs parallel to the landslide-damaged highway.

Arizona Department of Transportation Director John Halikowski discusses the possibility of a passenger rail line connecting Phoenix and Tucson, as well as ADOT's collaboration with Nevada's Department of Transportation on the proposed Interstate 11 connecting Phoenix and Las Vegas.

The Arizona Department of Transportation is unveiling a new operations center it says brings the Valley's freeway system into the 21st century. 

The Arizona Department of Transportation is emphasizing driver education as it prepares to launch a ‘Dust Storm Awareness’ campaign.

With summer vacation under way, here’s something to keep in mind if you’re driving to Northern Arizona—highway construction.

Many people who tried to use Arizona’s 511 system this past weekend couldn’t get the latest road conditions because the phone number and website were at full capacity.  As KJZZ’s Paul Atkinson

Access to Sky Harbor Airport just got easier with the opening this morning of new ramps carrying traffic directly out of Sky Harbor airport on the southbound 143.

The winter storm marching across Arizona has shutdown schools in Flagstaff this morning and forecasters are expecting the snowfall to continue.