EE WAS DRIVING EXPLOSIVES TRUCK ON MAIN HAUL ROAD. HE PULLED TO RIGHT SHOULDER TO ALLOW EMPTY COAL TRUCK TO PASS. SOFT SHOULDER GAVE WAY CAUSING TRUCK TO ROLL ONTO SIDE. EE WAS TREATED AT E.R. FOR CUTS TO HEAD. GIVEN PRESCRIPTION MEDICATION & TIME OFF WORK. RELEASED FROM E.R. SAME DAY.