State Highway 2 through the Waimana Gorge will open tomorrow during daylight hours, between 7am and 5.30pm for the first time since the start of July.
The New Zealand Transport Agency closed the road after heavy rain caused a major slip on July 4.
Up until now the road has been closed unconditionally to drivers.
Bay of Plenty system manager Rob Campbell said the site will be continuously monitored during the opening hours to ensure the area remains safe for people to travel through.