EMPLOYEE WAS OPERATING A COALHAULER AND COMING TO THE CRUSHER. HE DOZED OFF, HIS HAULER CROSSED THE HAULROAD AND IT APPEARS THAT HE ATTEMPTED TO RECOVER. HE DID NOT AND THE HAULER LAID OVER ON ITS LEFT SIDE. EMPLOYEE GOT OUT OF HAULER BY HIMSELF. HE WAS TAKEN TO A LOCAL E.R. FOR TREATMENT AND HAS BEEN OFF WORK.