No one was hurt when two train boxcars derailed at the ALCOA aluminum plant.
It happened around 11 a.m. Monday. ALCOA officials say there were no leaks or spills during the derailment.
They expect trains to resume service within the next day or two and don't think production will be disrupted.
Investigators are working to figure out exactly what happened, but say the recent weather has been rough on track conditions.