"We didn't know initially the extent of its injuries as we couldn't assess it because it was thrashing around," he said.
However, the owner was able to calm the horse and after waiting an hour for a vet it was sedated, extracted and found to be uninjured.
"We were lucky we had farmers there to help us."
Situations like this were unusual but had happened before, Mr Le Quesne said.
The driver, a woman from Taihape, was also uninjured but very distressed until she knew the horse was all right.
"She was very happy once the horse was assessed and found to be fine," he said.
The vehicle sustained considerable damage due to rolling several times.
Two fire appliances, police and ambulance were in attendance.
Emergency services were at the scene for about an hour and a half, although the actual extraction only took 20 minutes.