Marlborough District Council says its possible parts of Kenepuru Road in the Marlborough Sounds could be permanently closed after it was severely damaged in the August storm.
The recovery continues in Nelson and Marlborough, where many residents have been unable to return home due to damaged roads or because their properties are unlivable.
Hundreds of Marlborough Sounds residents that remain cut off by road after last month's storm are relying on barge transport to get to and from their homes.