SH1 will be closed northbound between Upper Harbour Hwy and Silverdale on Mon 24 Oct between 10pm and 5am for routine maintenance and safety improvements work. A longer than usual signposted detour will be in place via Paul Matthews Rd, Bush Rd, Albany Ewy and Dairy Flat Hwy. This will add approximately 15 minutes to your journey time, so please plan ahead.

The following northbound on-ramps will also be closed (from 9pm) for these works: Upper Harbour Hwy, Greville Rd, and Oteha Valley Rd.

Please note that all overnight motorway closures are subject to weather and other factors and may be cancelled or postponed at late notice. To check for the most current overnight closure information please visit our website (www.journeys.nzta.govt.nz/traffic) before you go each day.