All lanes closed for overnight maintenance on Northern Motorway

1 MinutesBy NZ Trucking magazineOctober 28, 2020

The NZ Transport Agency advises that the Northern Motorway will be closed between Oteha Valley Road and Silverdale for essential maintenance over several nights, starting Sunday 1 November.

Both northbound and southbound lanes between Oteha Valley Road and Silverdale will be closed between 9pm and 5am on:

  • Sunday 1 November to Thursday 5 November

  • Sunday 8 November to Tuesday 10 November

Please note this work is weather dependent and may be rescheduled. Contingency dates are Wednesday 11 and Thursday 12 November.

Map showing the detour route

A signposted detour along Dairy Flat Highway for both northbound and southbound traffic will be in place. The BP Service Station Dairy Flat and other shops on SH1 will be closed.

“Motorists are reminded to plan ahead and allow more time for their journeys on these nights. The night time closures are scheduled for when there is less traffic and to minimise disruption,” says NZTA Auckland system manager Andrea Williamson.

The closures are required to carry out a range of maintenance tasks, including drainage upgrade work at the Lonely Track Road overbridge.

“This work is an important part of the maintenance programme to ensure the motorway is kept in a good and safe condition for all road users.”

For updates and information about this work, or any other motorway issues please call 0800 44 4449 or email