State Highway 3, between Te Awamutu and Ōhaupō, was closed twice yesterday afternoon within an hour following two multiple vehicle crashes.
At the time of going to press, workers were still clearing both scenes.
Emergency services were called to the first crash, in the 70km/h zone south of Ōhaupō, at 1.20pm.
A Fonterra tanker and trailer unit was rear ended by a woman driving a van as it turned left into Ranby Rd.