NZTA will close SH1 southbound between Silverdale interchange and Oteha Valley Road overnight Monday, February 23.

The closure is scheduled from 9pm to 5am for general maintenance.

The Silverdale southbound on-ramp and the Oteha Valley Road southbound off-ramp will also be closed.

Signposted detours will be in place.

NZTA recommends using the detour via Twin Coast Discovery Highway, Dairy Flat Highway and Oteha Valley Road.

The work is weather dependent and dates may change.

Ramp closures and lane restrictions may start before the mainline closure.

It also says nearby properties may experience increased noise during the work.

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