Union Pacific derailment in Arizona leaves 15 cars off track
06.04.2026
In the Union Pacific derailment Arizona, 15 cars of an intermodal train derailed near Mescal. They were part of a Union Pacific train. The incident happened on Saturday, April 4. No injuries were reported, and no hazardous materials were released.

Union Pacific derailment near Mescal
KOLD-TV reported that Union Pacific said the derailment took place at about 6 p.m. Saturday. Cochise County Sheriff’s Office said the site was about 2 miles north of Interstate 10. It was at North Mescal Road. The road was closed because of the incident. Mescal-J6 Fire District said on social media that the road had reopened by 1 a.m.
Train details on the Lordsburg Subdivision
The Sheriff’s Office told the station the Union Pacific intermodal train consisted of 177 cars. It measured 14,500 feet in length. Mescal is an unincorporated community. It is about 36 miles east of Tucson on Union Pacific’s Lordsburg Subdivision. Its population was 1,751 in the 2020 census.
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Amtrak Sunset Limited remains unaffected
The derailment occurred along the route used by the Sunset Limited. Still, the Amtrak train has not been affected. The eastbound train left Los Angeles on Friday. It passed through the area before the derailment happened on Saturday. Meanwhile, Trains reported that today’s eastbound departure is still on time. It is listed on the Amtrak website for Sunday, April 5, at 10 p.m. PT.
The westbound train departed New Orleans on Saturday. It remains scheduled to arrive in Tucson, Ariz. Tucson, Ariz., is the first stop west of the derailment location. The train is due there at 7 p.m. today.
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