Abstract: Employee #1 was a member of a construction crew that was refurbishing a grain conveyor adjacent to the Mississippi River. Work had ended for the day and the workers were returning from the section over water back to land. Employee #1 had removed his life vest and put a 2 in. by 10 ft by 8 in. plank on the rollers of the conveyor with the intent of riding the plank back to the bank. (The conveyor belt had not yet been installed). He slipped off the plank and fell 40 ft through the conveyor framework into the river. His coworkers threw him a life preserver but he could not reach it. Employee #1 drowned.