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Northbound lanes of Northern Motorway to close for maintenance

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The NZ Transport Agency advises that the northbound lanes of the Northern Motorway (SH1) will be closed for maintenance work between the Silverdale interchange and Puhoi on Tuesday, 21 May.

The Transport Agency’s Auckland System Manager Andrea Williamson says the northbound toll road through the Johnstones Hill tunnel will be closed at night between 9:00pm and 5:00am when traffic volumes are reduced and will cause least disruption for road users. 

Maintenance work will include sign replacement, light pole replacement and line marking.

There will be a signposted detour along the Hibiscus Coast Highway (previously known as SH17) between the Silverdale interchange and Puhoi. This will add approximately 15 minutes to journeys.

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.

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