THE EE WAS SHOVELING HARD PACKED SALT ALONG 24 BELT INCLINE. THE EE'S FOOT SLIPPED OFF A SMALL LEDGE THAT WAS CREATED DURING THE CLEAN-UP PROCESS, THUS TWISTING THE RIGHT ANKLE. LATER IN THE S HIFT THE EE WAS PUSHING A WHEELBARROW ALONG ROUGH GROUND AND STEPPED ON AN UNEVEN SPOT, AGGRAVATING THE INJURY.