NZ Transport Agency has confirmed a series of overnight highway closures for essential maintenance on State Highway 1 and State Highway 18 next week.

Drivers are advised to plan ahead and follow the recommended detour routes.

On Tuesday 22 April, State Highway 1 will be fully closed in the southbound direction between Oteha Valley Road and Constellation Drive from 10pm to 5am.

Several ramps will also be closed during this time, including:

• Oteha Valley Road southbound on-ramp
• Greville Road southbound off-ramp and on-ramp
• Constellation Drive southbound off-ramp
• The link from SH1 southbound to SH18 westbound

The recommended detour is via Oteha Valley Road, Albany Expressway, Bush Road, Paul Matthews Road, and Upper Harbour Highway.

Also on Tuesday 22 April, a full westbound closure is planned for State Highway 18, from Paul Matthews Road to Albany Highway, between 10pm and 5am.

The following ramps will be closed:

• Paul Matthews Road westbound on-ramp
• Albany Highway westbound off-ramp

Drivers should detour via Caribbean Drive, Goldfinch Rise, and Albany Highway.

On Wednesday 23 April, State Highway 1 will be fully closed southbound from the Silverdale interchange to Oteha Valley Road, between 9pm and 5am.

The affected ramps include:

1. Silverdale southbound on-ramp
2. Oteha Valley Road southbound off-ramp

The recommended detour for this closure is via the Twin Coast Discovery Highway, East Coast Road, and Oteha Valley Road.

These works are weather dependent and may be rescheduled if conditions are unsuitable.

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