State Highway 2 has reopened near Takapau after a large grass fire rampaged across farm paddocks and hay bales and reached the road.
Although it's understood the blaze was under control by about 5.30pm, emergency services widened cordons to between State Highway 50 and Ashcott Rd at 4.30pm.
The fire broke out about 2.40pm and had reached the road by 3.17pm, driven by strong winds.
Police helped farmers drive tractors off the paddocks as the fire advanced. Only minutes later, fence battens were ablaze.
"Minutes later the flames had reached the roadside and the fence battens were ablaze. The road disappeared under clouds of smoke."