Source: New Zealand Transport Agency
Night works begin next week that will see State Highway 1 Ngauranga Gorge closed to southbound traffic between Johnsonville southbound offramp and Ngauranga Interchange.
The highway’s southbound lanes will be closed for two nights of resurfacing – Sunday, 2 February and Monday, 3 February, between 9 pm and 4:30 am.
Closing the road at night when there are fewer vehicles on the road reduces disruption, allows more work to be completed faster, and ensures workers are kept safe on this steep section of road.
A local road detour will be available for light vehicles only. They can take the Johnsonville southbound offramp and detour to the city via Johnsonville, Khandallah, and the Ngaio Gorge. Drivers travelling to the Hutt Valley on State Highway 1 should detour via State Highway 58 and Haywards Hill.
Heavy vehicles cannot take the Johnsonville/Khandallah route because of a height restriction on the Johnsonville underpass. They must use State Highway 58 to Haywards Hill and State Highway 2 Hutt Valley to get to the city.
These detours are longer, so drivers should allow extra travel time.
NZTA/Waka Kotahi and the Wellington Transport Alliance thank the public for their patience and cooperation while this essential state highway maintenance is completed.
Works schedule and detour routes
- Sunday, 2 February and Monday, 3 February. 9 pm – 4:30 am
- Southbound closure SH1 Ngauranga Gorge between Johnsonville southbound offramp and Ngauranga Interchange.
- Travelling to the Hutt from SH1, detour via SH58 off SH1 Transmission Gully.
- Light vehicles detour via Johnsonville southbound offramp, Middleton Road, Johnsonville, Khandallah, and Ngaio Gorge. This route is not suitable for heavy vehicles.
- Heavy vehicles must detour via SH58 Haywards and SH2 Hutt Valley.
More information: