Southern Connection

WHAT ARE WE DOING?

OVERVIEW OF THE UPCOMING STATE HIGHWAY 1 ROAD CLOSURES

As we progress towards completing the new motorway, we are now at the stage where we need to connect parts of the new road with the existing motorway and State Highway 1 (SH1).

At the Southern Connection there will be extended road closures at the Johnstone Hill Tunnels, as well as the likelihood of additional road layout changes.

Overnight closures are planned in both directions during February and March 2023 to complete the final road surfacing, chip sealing, barrier installation, line marking and signage.

Northbound SH1 closures between Silverdale to Johnstones Hill Tunnels (JHT). Detours will be in place via Hibiscus Coast Highway, from 9pm to 5am.

  • Sunday 12 to Thursday 16 February
  • Sunday 19 to Thursday 23 February
  • Sunday 26 February to Thursday 2 March
  • Sunday 5 to Thursday 9 March

While the northbound closure is in place, traffic will detour along Hibiscus Coast Highway (HCH). A stop/go operation will be in place on HCH to manage traffic safely.

Over Dimension vehicles will be assisted through the site via our traffic management team.  Heavy vehicles are advised to take State Highway 16.

Southbound SH1 closure between Pūhoi to the JHT.  Detours will be in place via Hibiscus Coast Highway, from 9pm to 5am.

  • Wednesday 15 February and Thursday 16 February
  • Sunday 19 to Thursday 23 February
  • Sunday 26 February to Thursday 2 March
  • Sunday 5 to Thursday 9 March
  • Sunday 12 to Thursday 16 March


These works are being coordinated alongside closures at Dome Valley for maintenance as both teams are again working together to ensure that we capitalise on these closures and get as much work done with the least possible disruption.

Additional to these night-time road closures, there may be new road layout changes needed in the south to complete the final tie-in works around the JHT.  We will update you once we have more information. So keep an eye out here or follow our Facebook page @aratuhonopuhoitowarkworth.

While all efforts have been made to limit disruption to traffic flows, we encourage you to plan your journey over this time and check the Waka Kotahi Journey Planner before heading out https://www.journeys.nzta.govt.nz/

These construction works connecting with the Northern Gateway and SH1 are part of the final stages before the new motorway can be opened. While this will impact travel, completion of these works takes us closer to opening the new motorway as soon as possible and we are all looking forward to enjoying a safer, more resilient and reliable road with more consistent travel times.

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Pūhoi on- and off-ramps

South-facing on- and off-ramps have been built at Pūhoi. This means if you are heading north, you can exit at Pūhoi and you can also go south by joining the motorway at Pūhoi..

The new Pūhoi on-ramp currently has both north-bound and south-bound (bi-directional) traffic using it. This is temporary and will remain in place until the motorway opens, it will then revert to a south-bound on-ramp only.

Motorists travelling north will have the option of exiting at the on-ramp and re-joining SH1 or exiting at the Pūhoi off-ramp onto Pūhoi Road.

SH1 south of Pūhoi Road through to 1378 Hibiscus Coast Highway will become a one-way road for south-bound traffic only. This will remain in place until the opening of the new motorway.