After their fourth accident in less than a year, safety questions remain for the company that oversees construction of the Jerome Schottenstein Center and the renovation of McPherson Laboratory.Employees of PJ Dick Inc., which contracts work on the $105.8 million arena for Ohio State basketball and hockey, and the $7 million renovation of McPherson Lab, were involved in two injuries this year and two crane accidents last year.The company is the head contractor on both projects and is responsible for site safety, said Jill Morelli, university architect.Morelli said while she doesn’t like any accident to occur, the accidents that have occurred at the arena site have been mostly unavoidable.”Generally speaking, one abnormal and a few normal accidents aren’t enough to warrant a comprehensive look (at PJ Dick),” she said.Tom Triplett, 32, who was hired by PJ Dick, suffered a broken leg after a 35-foot fall at the arena Friday. In February, John Abner, 21, fell about 15 feet while working on the building roof.Last year, two cranes toppled in separate incidents.On May 21, a crane fell and damaged the dome of the Richard and Annette Bloch Cancer Survivors Plaza on Lane Avenue. A crane also toppled onto the roadway and crushed the car of Marvin Kuhn, 45, on July 21, killing him.The company was cited for not providing employees with training as spotters and extending the boom of the crane over 25 feet, and fined $5,635.The crane operator, Mark Burcher, 38, will go on trial this June on involuntary manslaughter and drunken driving charges. Burcher had a blood alcohol level of 0.17 at the time of the accident.”At this point in time, death aside, I don’t see anything that would cause us to treat them differently,” Morelli said.Accidents are common in a high-risk industry like construction and PJ Dick has followed safety regulations well, Morelli said. Morelli said she was not yet aware of the details in the latest fall.Debra Zubaty, area director of the Occupational Safety and Health Administration (OSHA), said sites are inspected when three or more people are hospitalized in an accident, if there is a fatality or if a complaint is filed by a worker or the media.”No accident is regular, but construction has the highest injury rate among the people we deal with,” Zubaty said.OSHA has six months after an incident or complaint to investigate, Zubaty said. After the latest fall, OSHA will again inspect the Schottenstein site but Zubaty said she could not comment on the investigation.OSHA periodically inspects construction sights with previous violations and where past injuries have occurred, Zubaty said. OSHA interviews management and employers at the sight and does a walk-around inspection.If OSHA finds violations, they send a citation after which the business has 15 working days to pay the penalty, settle with OSHA, or go to court, Zubaty said.PJ Dick had no comment on the incidents.”That many accidents would tend to be looked down upon as too many,” said Brad Bowers, an engineer and estimator with Kokosing Construction. The company is involved with the construction of the Neil Avenue parking garage. Bowers said his company has regular meetings explaining safety dangers to its employees. Bowers said there can be accidents “even if you follow the OSHA guidelines to a ‘T.'”Morelli said OSU has job meetings with contractors during which safety is emphasized. She said a full-time safety officer is employed on the arena project.OSU places public advertisements to locate contractors for construction projects, Morelli said. There is then a competitive bidding process, companies provide a bond and a responsibility analysis is done. The OSHA safety record of a company is included in this analysis.”Things can change over time,” Morelli said. “But these incidents would not be enough for us to ask to see their safety plan.”