A LOAD of empty glass bottles was well and truly recycled after a B-double rolled on a bend on the Cunningham Highway north-east of Warwick this afternoon. 

The 48-year-old driver of the Victoria-based Freightliner was fortunate to walk away from the crash with only minor injuries when the rig left the roadway a short time after midday, about a kilometre from Bestbrook Mountain Resort.

He sustained nothing more than a seat belt injury to his shoulder and a sore chest, but was taken to Warwick Hospital by ambulance for observation.

The B-double, with a full load of bottles on board, was heading to a Gold Coast recycling facility, with an amount of glass needing to be swept off the highway to allow vehicles to pass in the Warwick-bound lane, which remained open while the truck was recovered.

Employees of a Stanthorpe transport company were first on the scene and said they found the driver wandering dazed but amazingly unhurt, with the truck having slid on its side a good 50 metres.

Senior Constable Ray Hutchinson of the Yangan Police Station took an extensive statement from the driver - who returned a negative breath test - and witnesses.

He said investigations would be ongoing, but said he could not rule out a shifting of the load inside the trailer, mechanical failure or driver error.

"What has happened is that for some reason the trailer has started to sway and the rear wheels have left the road and gone onto the soft shoulder, with the rest of the vehicle following suit," he said.