About a month ago, on June 26, a Union Pacific train derailed 12 cars along the same bridge, damaging the bridge and rail ties. The line re-opened the following morning, according to Union Pacific. Tempe's Ruiz said fire and medical personnel responded to that incident and "put out the fire that occurred with the rail ties. No rail cars were on fire during that event," he said. Tempe Fire Assistant Chief Andrea Glass described the June 26 incident as “very minor,” with a few rail ties on fire and slight damage to the rail itself.