KOLD Investigates: A closer look at train derailments

TUCSON, AZ (Tucson News Now) - As crews from Union Pacific investigate the derailment northwest of Tucson, the Federal Railroad Administration expects to post the report to its online safety database by October 1.

In the meantime, the FRA database provides a historical breakdown of accidents and incidents in Pima County, across Arizona and all over the United States.

Derailments, in general, were at their lowest point since at least 2009 in Arizona, according to FRA data. There were seven derailments statewide in 2017, which is less than half the high of 15 in 2012 and 2014. Union Pacific accounted for eight of the derailments in 2014.

Two of those were in Pima County, according to the FRA. As of this report, the July 10 derailment has not been processed into the 2018 data.

If it caused more than $500,000 in damage, Tuesday's crash would be in roughly the top 5 percent most expensive train crashes, according to historical averages of the last ten years. More than $1 million in damage would jump the incident closer to the top 3 percent.

U.S. railroads experienced the lowest accident rate last year since 2000, according to the American Association of Railroads. It's a 44 percent d rop, with derailments down by 42 percent.

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