The NZ Transport Agency is planning to reopen two westbound lanes of Auckland's Northwestern Motorway (State Highway 16) at 10.30am today.
Two of the three westbound lanes were closed early this morning when a gantry sign over the motorway was hit by a machine installing safety barriers along the edge of the motorway.
The accident occurred 500 metres west of the Great North Road interchange. No one was injured.
The Transport Agency says there are delays while the damaged sign is removed. All eastbound lanes on the motorway remain open.