State Highway 2 between Napier and Wairoa was closed early on Sunday due to a slip - and will remain closed overnight Sunday.
The slip happened between Pūtōrino and Kotemaori, near the Waikare Bailey bridge, and the road was closed about 3.45am.
Heavy rainfall over the weekend led to the slip, which initially blocked both lanes of the road near the intersection with Waikare Road.
A geotechnical assessment carried out this afternoon has advised more work needs to be done before the stretch of road can safely open.
Waka Kotahi New Zealand Transport Agency Hawke’s Bay/Tairāwhiti system manager Martin Colditz says crews have been working all day to clear the slips, but a closure is needed overnight to ensure the safety of everyone wanting to use the road.