A semi-trailer rig rolled late Monday morning on Highway 191 in Grand County, closing lanes in both directions into the early afternoon.
Utah Highway Patrol Cpl. Todd Johnson said the driver told investigators he had swerved to miss hitting an antelope crossing the road.
The truck veered off the highway, but the weight of the trailer's cargo shifted, causing the truck to tip over. The truck then got hung up on the rails of a railroad crossing bridge, Johnson said.
The crash occurred about 11 a.m., about 30 miles northwest of Moab.
The crash was cleared at 4:15 p.m., according to the Utah Department of Transportation.
Both the semi-driver and his passenger were treated for minor injuries at a local hospital and released, Johnson said.