ON MONDAY DEC. 22, EE WAS PERFORMING MAINTENANCEAT DREDGE. HE WAS HELPING CO-WORKER DO OIL CHANGE ON 3406 AND CLEANING UP CAB OF DREDGE, AND TEARING OUT OLD FLOOR SO NEW ONE COULD BE INSTALLE D. EE HELPED CARRY SOME CONCRETE BOARD USED TO REPAIR FLOOR. THE BOARD WAS CARRIED APPROX. 40 YDS DOWN A RAMP. EE CONTINUED TO WORK ON FLOOR PROJECT UNTIL COMPLETED... (1/13/04-HAD SURGERY)