Abstract: At approximately 12:28 p.m. on November 8, 2006, Employee #1 was working in an excavation which was approximately 10.6 ft deep, 10 ft to 15 ft wide, and 50 ft long. The excavation was benched to approximately 2.6 ft below the natural grade, and then an 8-ft-deep trench was cut longitudinally along the center of the excavation. An 8 ft by 16 ft trench box was in use. Employee #1 was supervising a crew installing a sanitary sewer main. After he stepped out of the box and into an unprotected portion of the trench (to measure the diameter of an existing pipe), the east side of the trench collapsed. Employee #1 was killed.