Residents on the Hibiscus Coast and frequent commuters should be aware of upcoming closures on State Highway 1 (SH1) and State Highway 18 (SH18) due to maintenance work scheduled by the NZ Transport Agency (NZTA).

The work will take place over several nights, with closures affecting both northbound and southbound lanes at various locations.

Starting Sunday, October 13, SH1 will see full closures southbound between Oteha Valley Road and Constellation Drive from 10 pm to 5 am.

This section of SH1 will also be closed on Monday, October 14, between Silverdale interchange and Oteha Valley Road, beginning at 9 pm and lasting until 5 am.

Work will then continue northbound on Tuesday, October 15, from Oteha Valley Road to Orewa interchange from 10 pm to 5 am.

Finally, on Wednesday, October 16, the northbound section between Constellation Drive and Oteha Valley Road will close during the same overnight hours.

In addition to SH1, SH18 will also be affected, with closures westbound from Paul Matthews Road to Albany Highway on Sunday, October 13, between 10 pm and 5 am.

Each night, multiple maintenance activities such as road resurfacing and vegetation control are expected to increase noise levels in the areas.

NZTA advises drivers to be mindful of ramp closures along these routes.

For example, the southbound Greville Road on-ramp and off-ramp will be closed on October 13, while the Oteha Valley Road southbound off-ramp will shut down on October 14.

Similar closures will occur on SH18 at Paul Matthews Road and Albany Highway, with detour routes signposted for affected drivers.

For those driving northbound on Tuesday, closures will include ramps at Oteha Valley Road, Silverdale, and Orewa.

Heavy vehicles over 3,500 kg will need to follow an alternative route via the Hibiscus Coast Highway and Old State Highway 1, as Grand Drive will be restricted for such vehicles.

This maintenance work is weather-dependent and may result in date changes.