Abstract: On September 30, 2013, Employee #1, a 47-year-old male with Cramer and Associates Inc., was engaged in patch work activities, on the bottom side of the bridge deck, and was working from a JLG, Model Number 600AJ, 4WD Articulating Boom Lift, that was approximately 20-to-25 ft above grade. Employee #1 lowered himself to obtain additional equipment from a coworker. Employee #1 was elevating himself, in the man basket, to return to work on bottom side of bridge deck, while the coworker went to talk to a railroad flagger who was approximately 300 ft away. The coworker returned to the JLG that Employee #1 was operating, and observed that Employee #1 was pinned between JLG guardrail system and the bridge girder, Employee #1was draped over the controls of the JLG. The coworker contacted two other workers, at the site, to assist with the rescue of Employee #1 and the workers performed CPR on Employee #1, until an ambulance arrived on scene. Employee #1 was sent to hospital and was on life support at the time of the OSHA investigation. A casual factor, to this event was that Employee #1 was not looking in the direction of travel, as recommended by the manufacturer.