Two carnival rides and trailers toppled Sunday evening as they were being hauled on Interstate 70, backing up westbound traffic.
Maryland State Police Trooper 1st Class Scott Bare said the driver, David Eugene Southard, 20, of Hagerstown, reported that the trailers started to sway and he lost control.
The trailers were attached to one another and to a 1989 Ford pickup truck Southard was driving, but both trailers separated from the truck, Bare said.
Police did not issue any tickets.
Bare said the rides were on their way to a carnival in Maugansville when they overturned at about 6 p.m. about a quarter-mile east of the Dual Highway exit.