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Johnstone Hill Tunnels Road Change

Matakana Coast App

The Matakana App

18 February 2021, 6:46 PM

Johnstone Hill Tunnels Road Change

From Tuesday 23 February 2021, there will be a new road layout for traffic north of the Johnstone Hill Tunnels. The current road layout will be reversed and northbound traffic leaving the tunnels will run adjacent to the current southbound lane.



This new road layout will be in place for most of the year and is part of the work to connect the new motorway alignment with State Highway 1. A reduced speed limit of 60km/h will remain in place for the duration of the works, as safety is of the highest priority.


The road layout changes will be formed over a period of two nights on Sunday 21 February and Monday 22 February 2021 from 9.00 p.m. – 5.00 a.m. 


Once the new road layout is in place, works will continue for a further three nights from Tuesday 23 February to Thursday 25 February 2021, so workers can complete the Hibiscus Coast Highway tie-in works.


Stop/go traffic management will be in place on SH1 north of the tunnels while the five nights of works take place, for everyone’s safety. Motorists may experience longer travel times and are encouraged to plan ahead, slow down and to take care when driving through the area. Ara Tuhono appreciates your cooperation and apologises for any inconvenience that may be experienced. 


Unfortunately, due to the current Covid 19 situation, Ara Tuhono had to make the decision to postpone the Public Open Day that they had planned for Saturday 20 February.

“To keep our staff, partners, stakeholders and the community safe, we will continue to monitor alert levels and announce a rescheduled date for the open day as soon as we’re able. Once a new Open Day date has been decided, we will communicate this through our usual channels, including our Facebook page, website and construction update.”