Train Derailment Arizona 2025. The incident happened at around 11:20 p.m. The derailment happened when a westbound union pacific railroad freight train traveled over a wooden trestle leading up to a steel superstructure bridge over tempe town.

(ap) — authorities are trying to determine the cause of a freight train derailment in northern arizona that heavily damaged 23 cars and a load of new vehicles. No injuries were reported and no hazardous materials were involved in the incident that occurred about 7:30.