Abstract: At approximately 9:57 a.m. on November 9, 1992, Employee #1 was repositioning a series of chains that held a large corrugated tunnel-plate section in place during the construction of a cut-and-cover tunnel. Finding one of the positioning chains too tight to release the come-along (hand winch) manually, he proceeded to use a 2 1/2 ft length of pipe to gain leverage and release the cam lock of the come-along. He positioned his body in front of the come-along and pulled the pipe toward himself. While he was pulling with great force, the length of pipe slipped from the come-along handle and struck Employee #1 in the face. Employee #1 was hospitalized.