EMPLOYEE STATES HE WAS ON WAY TO WORK AND DROVE TRUCK (PERSONAL) INTO WASHOUT IN ROADWAY. DOES NOT RECALL HOW IT HAPPENED. WASHOUT HAD RECENTLY OCCURRED AND WAS BARRICADED WITH ORANGE AND WHIT E REFLECTIVE BARRICADES. ACCIDENT OCCURRED ON MINE ROAD. 18' WIDE ACCESS AVAILABLE AROUND WASHOUT.