All road users are urged to take extra care and check the latest conditions with severe weather hitting or expected to hit parts of the Bay of Plenty.
There is currently a severe weather warning in place for the Bay of Plenty, especially west of Kawerau, and also eastern Waikato and Taupo. 100 to 140mm of rain and thunderstorms are likely in some of these areas through to Saturday evening.
This is on top of significant rain that has already accumulated.
New Zealand Transport Agency Journey Manager Liam Ryan said with all the rain people may see some flooding or slips and they should take extra care.
"All people who are using the roads should reduce their speed and increase their following distances.