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All lanes open on Northern Motorway after overnight repairs

Radio New Zealand logo Radio New Zealand 1/12/2020
a large long train on a highway © RNZ / Jean Bell

All lanes on Auckland's Northern Motorway (SH1) are open this morning following overnight repairs, the New Zealand Transport Agency says.

Road crews had carried out repairs on the right-hand lane in each direction between Greville Road and Upper Harbour Highway.

The two lanes were closed yesterday afternoon after the road surface lifted, making a significant speed bump for vehicles.

Uneven surfaces were caused by road construction crews working under the raised motorway section.

They were pumping grouting material, which became blocked and seeped out under the road surface, causing it to lift.

The overnight repairs involved stripping the road surface, removing the grout material and then paving with asphalt.

Yesterday's lane closures caused significant congestion and delays for evening peak time motorists.


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