Boulders on a highway? For US 89A repairs, ADOT called Boulder Busters by
Learn how ADOT used an explosive device the size of a shotgun shell to reopen 24 miles of US 89A after a widespread flash flood.
Boulders on a highway? For US 89A repairs, ADOT called Boulder Busters by
Learn how ADOT used an explosive device the size of a shotgun shell to reopen 24 miles of US 89A after a widespread flash flood.