UPDATE: A fatal accident involving a cement truck at Rawbelle, west of Monto, on Tuesday was the second for concrete supplier Hanson in two weeks.
The truck hit a bridge and rolled into a river bed, killing the 63-year-old driver, on Tuesday afternoon.
The truck had been travelling from the Biloela concrete plant and crashed about 4pm.
The driver and sole occupant died at the scene.
Monto Police Senior Constable Ron Mientjes said it was believed the man lost control coming around a gravel corner and hit the front of the bridge before rolling into the river bed.
Because of the weight of the truck, which was full of set concrete, the fire service could not extract the man's body until 11.30am on Wednesday.
They then detached the 17 tonne concrete bowl and hoisted the rest of the truck out of the river bed with a tow truck.
A crane arrived from Biloela late on Wednesday afternoon to remove the bowl.
Police, ambulance, firefighters and towing services all visited the scene, and Biloela police guarded the site throughout the night.
Another Hanson concrete truck crashed in Mulgildie in heavy fog last week, although this was driven by a different employee.
The 64-year-old man said he had been disorientated in the thick fog at 7.15am and lost control of the vehicle as he swung around the corner leading into the Burnett Hwy town.
He was en route from Biloela to Mungungo, west of Monto, and was coming back into Mulgildie after realising he was lost.
"Concrete trucks are hard to control when they have the mixer going," the truck driver of 40 years said.
"They are so heavy and the momentum going all to one side can throw you right off balance.
Police officer at the scene, Constable Tim Clark, said if the driver hadn't been wearing a seatbelt his injuries would have been much more severe.
The truck, which landed by the rail line, also provided a challenge for emergency services to remove.
JUNE 10: There has been a fatal single-vehicle traffic accident west of Monto.
Police are investigating the crash that occurred on Glencoe Road at Rawbelle on Tuesday afternoon.
Initial information suggests that around 4pm, a cement truck lost control and went over a bridge into a river.
The driver and sole occupant of the vehicle, a man believed to be in his 60s, died at the scene.
Police are appealing for anyone that may have seen the truck in the area to contact their local police station or call Crime Stoppers.
The Forensic Crash Unit is investigating.