Skanska USA Building, general contractor for a $650-million expansion of the Oregon Health & Science University Hospital in Portland says it is investigating an Aug. 12 incident involving a track drill that tipped over, seriously injuring the equipment operator.
The operator of the 50-ton Bauer track-mounted rotary drilling rig was pinned in the machine’s cab when it tipped at about 10:45 a.m., according to officials at Portland Fire & Rescue.