Mr Harding said the truck remain upright and the driver was uninjured.
He said it was not raining at the time but the road was wet from overnight rain.
Residents along the road all shared a similar a view that motorists should drive to the conditions.
That means driving slower around the corners, when the road is wet and slippery and not making silly decisions.
The road is renowned for logging truck rollovers and accidents involving trucks. A public meeting was held last year after five crashes involving log trucks inside a month.
A NZTA spokesperson said no one in the Northland Highways team was available to comment yesterday.
The spokesperson said since it became State Highway 15 last year additional signage had been installed and line marking improvements on the road had been carried out.
NZTA recently conducted the first annual crash reduction study on the road and will be investigating further potential safety improvements.
He said there has been one fatal, one serious and five minor injury crashes involving trucks on the road in the past five and half years.
Barbara Jaques said all drivers on the road, not just truck drivers needed to be responsible.
"If the road was dangerous, everyone who drove on it would be dead. It's about how we drive."
She said almost all accidents are caused by impatience, ignorance or inattention from the driver.
Ms Jaques and her husband Stephen Vincent have lived on the road for 20 years and he shares a similar view.
"Whether you're in a car, truck, motorbike or push bike, you're responsible for your load.
"Truck drivers, they're entitled to earn a living. I have no problem with them driving through here, they've got to abide by the same rules as I do."
He said if he fell off the road, he was responsible, and the same applied to them.
Selwyn Norris lives near the Loop Rd end of Otaika Valley Rd and said other accidents happened along the road, not involving trucks, but were not reported because they were not major.
"We being locals are just so aware of how careful you have be on the road."
He said truck drivers were pretty considerate now, much better than they were a few years ago.
He said the road was originally gravel and not built to cope with high volumes of heavy traffic. He said it broke up constantly.
Another resident, who did not want to be named, said she wanted to see the road widened.
The residents said some improvements had been made and were hopeful now the road was NZTA's hands that there would be more.
Northland Regional Council's Regional Transport Committee chairman John Bain said reducing the speed limit was a last resort.
Mr Bain said in more than 40 per cent of road deaths in Northland, people weren't wearing seatbelts, despite that being heavily regulated.
He also echoed the message for all drivers to drive to the conditions.
"It all comes down to the driver driving as safely as they can."
He said the speed limit was not a bullseye to throw a dart at.
Mr Bain said logging in Northland was a major industry and trucks would be using the route for a long time.
