A driver was uninjured after his truck crashed on the Braidwood Road on Friday morning.
Police said the male was driving south at 6.30am when the dog trailer on the back of his vehicle tipped over, some 15km from Goulburn near the Springfield property.
The trailer blocked the southbound lane and the gravel load spread over the road. The accident occurred on a slight bend. Police said the cause was still under investigation.
Police undertook traffic control until council workers arrived and took over this role.
A Divall's excavator was commissioned to clear the scene.
The Post understands the road is still partially blocked by the trailer. However the gravel has been cleared.
Goulburn man Reece Warnecke arrived on the scene 10 minutes after the accident.
He said the Goulburn driver, aged in his sixties, told him the truck hit the guard rail, the trailer tipped and slid 50 metres along the road. It was carrying 20 tonnes of gravel bound for a batching plant at Woodlawn, past Tarago.
"There was about 15 tonne of gravel spread across the road and down the embankment," he said.
Queanbeyan Palerang Regional Council workers have since cleared this.
Mr Warnecke said the foggy morning meant there was only about 50-metre visibility on the road.
"The driver was uninjured and it was just fortunate a car wasn't coming in the opposite direction," he said.
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