Big D Builders has resumed work on the hangar at Boise Airport, nearly one year after a tragic collapse that claimed the lives of three workers. The company, based in Meridian, Idaho, is continuing construction on the hangar, which is owned by Jackson Jet.

On January 31, 2024, the hangar collapsed during construction, killing Craig Durrant, 59; Mario Sontay Tzi, 32; and Mariano Coc Och, 24. Durrant was a co-founder of Big D Builders and the brother of Dennis Durrant, the company’s owner. Reports indicate that workers had raised concerns about the structure the day before the collapse.

OSHA’s findings, released in July, alleged that Big D Builders failed to adhere to regulations during the hangar's construction. The agency claimed that critical connecting bolts were left loose, and that the contractor used straps to straighten spans instead of installing additional bracing or temporary guy lines as required by steel erection standards. Additionally, OSHA stated that workers were not properly trained on how to construct steel spans, and that cranes and other heavy equipment were operated in mud and standing water, increasing the risk of overturning.

As a result, OSHA cited Big D Builders with one willful violation and three serious violations, totaling $198,586 in penalties. As of now, these citations remain contested, which could result in a reduction of the fines.

Inland Crane Inc., the Boise-based crane contractor on the project, was also cited with one serious safety violation and an initial fine of $10,163. Inland Crane contested the citation, but noted in a statement that OSHA’s findings showed that its employees and equipment were not responsible for the incident.

A few weeks before OSHA’s findings, the families of the deceased workers filed a lawsuit against the construction team, seeking damages. They allege that the builders “recklessly” rushed the construction process.