EE WAS DRIVING AN EMPTY TANDEM COAL TRUCK ALONG THE KNIFHT TRK HAULROAD AND DROVE THE TRUCK THROUGH A BERM (VEY HIGH) AND OVER A 200' EMBANKMENT. HE SUSTAINED A BROKEN GUMLINE BONE AND LACERAT IONS TO HIS CHIN, LIP AND HAND. EVIDENCE INDICATES AND INFORMATION GIVEN TO US AT THIS TIME IS THAT HE FELL ASLEEP AT THE WHEEL.