Abstract: At approximately 3:00 p.m. on September 26, 2011, Employee #1, a pipe layer, was in an excavation approximately 10 ft underground. Another employee, a backhoe operator, was standing at the backhoe's controls lowering a 48 in. concrete manhole base weighing approximately 2,500 lbs into the excavation by a sling on a backhoe bucket. The backhoe operator's vest caught on the control levers and as he sat down, the manhole base on the sling swung up against Employee #1 and pinned him between the load and the side of the excavation. The backhoe operator then dropped the base causing the concrete manhole to scrape the lower left leg of Employee #1 and land on his left foot. Employee #1 did not seek medical attention until October 4, 2011. He was hospitalized for a serious infection. (Note: Event date states 10/04/2011. Narrative states event happened on September 26, 2011.)