Michael Patterson, 34, who allegedly was struck by a commercial carrier truck on Interstate 30 near mile marker 115, is still being treated for his injuries.
Originally, emergency responders to the scene could not determine if Patterson had been struck by the truck or if he had walked onto the vehicle.
Patterson allegedly was struck by the truck and "struck by the second trailer in tow with the truck as the driver swerved to avoid hitting Patterson," said Bill Sadler, Arkansas State Police spokesperson.
Patterson was then transported by MedFlight to Baptist Health Medical Center for treatment of his injuries.
"It could have been worse," said Benton Fire Chief Bill Ford.
The driver of the vehicle had to complete standard post-accident substance screening as part of normal protocol, said Trooper Allan Johnson, who was at the scene. It is unknown whether the driver could face any charges, Sadler said.
Emergency personnel from the Benton Fire Department, Benton Police Department and the Arkansas State Police Department all responded to the incident.
The investigation by Arkansas State Police is continuing, Sadler said.