EMPLOYEE WAS ASSISTING LARRY MIDDAUGH AND MIKE ADAMS LOAD TRACK RAIL FROM A SCOOP ONTO A RAILCAR. HE AND MIDDAUGH HAD LOADED ONE END OF THE TRACK RAIL ONTO THE RAILCAR AND TOLD ADAMS THEY WER E IN THE CLEAR SO HE COULD PUT THE OTHER END OF THE RAIL ON THE CAR. AS ADAMS PUSHED HIS END OF ONE OF THE RAILS ONTO THE RAILCAR, THE OPPOSITE END FLEW UP AND STRUCK EMPLOYEE ON THE TOP OF H