A truck driver from Nebraska was injured during a rollover accident Friday morning, in Pottawattamie County. The Iowa State Patrol says a 1999 Freightliner semi driven by 45-year old Trevor Lierman, of Stanton, NE., was traveling east on Interstate 80 at around 12:20-p.m., when Lierman took exit 27 to head west on I-680.

Photo courtesy Brian Rink

The semi went out of control on the curve and entered the north ditch, where the trailer, loaded with cattle, rolled over. Lierman, who was wearing his seat belt, was trapped in the cab of the semi for about 30-minutes until he could be extricated by Neola Fire and Rescue personnel.

He was flown by LifeNet helicopter to the University of Nebraska Medical Center for treatment of non-life threatening injuries. Several cattle were trapped in the wreck, while others escaped. They were rounded up by area farmers and ranchers. Officials say anywhere from 15-to 20 cows involved in the crash may have to be euthanized. I-680 was closed in both directions while the cattle were being rounded-up.

The accident remains under investigation.