Police escorted convoys will allow those in the Far North to make essential trips after a washout left a gaping hole in State Highway One.
The NZ Transport Agency is co-ordinating with police, the Far North District Council and forest owners to allow daily convoys to use a forest track for essential travel.
The hole in SH1 near Kaitaia is still days away from being repaired, leaving the tip of the North Island cut off.
The public was advised not to use the unsealed forest route as it runs through private land and is considered unsafe for most vehicles.
Under police supervision, the route will be opened for a short time in the morning and evening on Monday.
Southbound traffic will meet at the corner of Far North Road and Trig Road to depart at 7:30am, while northbound vehicles must meet at 113 Hukatere Road to depart at 8:10am.
In the evening, those heading south will leave at 5:30pm from the same address, while northbound traffic will leave at 6:10pm from the same address.
Anyone wanting to make the trip must be on time, as there will not be another opportunity to leave in between the morning and evening convoys, according to NZTA's Northland System Manager Jacqui Hori-Hoult.
The public will be blocked from the forestry roads, leaving Ninety Mile Beach as the only option to head south.