Authorities released new details about a deadly pileup on an icy northern Arizona freeway during a winter storm last week.

(AP Photo/Felicia Fonseca) Traffic backed up for more than 15 miles on a westbound stretch of Interstate 40 between Flagstaff ...

The Arizona Department of Public Safety released statewide law enforcement statistics for St. Patrick’s Day celebrations from ...

But while Arizona has built more than 1,100 miles of highways and ... Opinion: Senator's 'immunity' to traffic laws is ...

Arizona State Sen. Wendy Rogers proposed renaming State Route 260 to Donald J. Trump Highway. The bill failed to pass the ...

Arizona Highways magazine is celebrating its 100th anniversary with a yearlong centennial celebration. Originally launched in ...

The woman who was killed got out of her car to check on a car that had crashed on the Loop 202 near 40th Street in Phoenix ...

Arizona authorities are investigating a crash that killed four people and left two in critical condition on an interstate highway near Tonopah.

A large winter storm bringing snow and rain is hitting Arizona, forcing closures of I-40 in Ash Fork, Kingman and Winslow.

The Arizona Senate rejected a proposal to rename State Route 260 after President Donald Trump. The proposal fell one vote short of the 16-vote threshold needed in the Senate after a Republican ...

Parts of Interstate 17 and State Route 89A, both the only way to get from the central Valley to northern Arizona, are closed.

The Arizona Highway Patrol carried out a major enforcement operation along a section of Loop 101 in the Mesa area on Wednesday, resulting in more than 400 vehicle stops within nine hours.