State Highway 35 between Ōpо̄tiki and Gisborne has reopened but some areas are still down to one lane.
The road closed at around 5.30pm due to a large slip at Hawai between Te Kaha and Waihau Bay blocking both lanes on the road.
"The slip site is now open to one lane with manual traffic control overnight," New Zealand Transport Agency's system manager Rob Campbell said.
NZTA are advising drivers to take extra care due to adverse weather conditions causing flooding and multiple slips throughout the Bay of Plenty and Gisborne Region.
"Our contractors have worked hard to clear the multiple slips along SH35.