A 52-year-old female remains in hospital after her vehicle collided with a B-double truck carrying chipboard on Wednesday morning.
Hamilton police Sergeant Rex Habel said a male truck driver was travelling on Thompson Road at Tarrington at 7.10am when he failed to stop at the intersection of Hamilton-Chatsworth Road at 7.10am.
He said a small Honda passenger vehicle travelling west on Hamilton-Chatsworth Road collided into the side of the truck.
"The trailer separated from the prime mover and tipped onto its side, completely blocking the road for a number of hours," Sergeant Habel said.
"There were road closures until the afternoon. A crane was brought in to remove the trailer and a fork lift was used to lift the laminated chipboard out of the trailer.
"The small vehicle was extensively damaged and towed from the scene."
The 52-year-old female driver of the Honda suffered a fractured vertebrae and was taken to Hamilton Hospital.
The 31-year-old truck driver suffered no injuries and was not taken to hospital.
Sergeant Habel said no charges had been laid but investigations were ongoing.
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