Abstract: Employees were working at a construction site for a bridge. They were pouring footings for the bridge columns, and there were 76-millimeter-diameter polyvinyl chloride pipes in the concrete. To prevent the collapse of the pipes during concrete-pouring operations, employees inserted mandrels into the pipes. The 6.1-meter-long, 51-millimeter-diameter mandrels could be tied together with wire rope to make longer lengths. The wire rope on the mandrels had an eye on the end to hook onto a shake-out hook on the load line of a crane. The shake-out hook did not have a safety latch on it; and, as an employee was putting the mandrels down, the eye came off the hook, and the mandrel fell, striking the employee. He sustained a cut to his head and other injuries.