Interstate 10 appeared three times in a list of the top 10 most dangerous U.S. highways, with five Arizona freeway sections ...

Conservation groups say the proposed Arizona routes for an Interstate 11 project failed to consider habitat for imperiled ...

As Arizona’s Family reported, one of the threatened species is the cactus ferruginous pygmy owl, whose climate would be ...

The eastbound lanes of Interstate 10 reopened at Queen Creek Road after a crash, according to the Arizona Department of ...

TUCSON, Ariz.— In response to a lawsuit from conservation groups, the Federal Highway Administration and Arizona Department of Transportation have agreed to halt planning activities and reevaluate ...