A major slip north of Macandrew Bay blocked Portobello Rd between Castlewood Rd and Broad Bay yesterday, forcing residents to take Highcliff Rd to travel to the city this morning.
The Dunedin City Council says there are still "numerous unstable banks along the road despite it looking quite clear" and it will likely not reopen until later today.
Senior Sergeant Steve Aitken, of Dunedin, said last night that as the city dried out he expected there to be plenty of debris on roads, and the possibility of more slips.
He urged drivers to be aware of the danger and travel more slowly.
For a full list of road closures in the DCC area click here