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Project newsletter – May 2021

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Worker on top of ladder looking into concrete truck.
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Making kerbs. A spotter keeps the Slipform machine and concrete truck in sync.

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Kia ora

Kia ora and welcome to the May update from the Transmission Gully team.

We are making great progress on paving and other finishing works. With only four months until the road is opened to traffic, we’re starting to reflect on the extraordinary effort that it’s taken to build this unique road. Numbers paint part of the picture!

Transmission Gully by the numbers (at road opening)

• 27 kilometres long
• Six years to construct
• 11.4 million cubic metres of earth excavated/moved
• 660,000 tonnes of aggregate brought to site
• 104,000 cubic metres of concrete used.

Read more >

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Works in the median strip at Linden – March 2021.

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Upcoming construction works that might affect you

Learn more about the streetlight works at the Mackays Crossing interchange and SH1 north of Mackays Crossing, as well as the finishing work at the existing SH1 at Linden.

Read more >

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Concrete being poured from large pipe hanging over wireframe.
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Concrete slab going down on the new TG Operations & Management building.

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Operating and maintaining the motorway

The slab is down, the frame is up… work has begun on the first and possibly the only permanent building to grace the Transmission Gully compound at Lanes Flat.

The building will house Ventia, the company that Wellington Gateway Partnership has subcontracted to operate and maintain Transmission Gully for the next 25 years.

Read more >

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Slipform machine making a kerb from concrete.
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The Slipform machine is just one of the interesting machines helping build the road.

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Slipform machine

At Transmission Gully we’re using a Slipform machine to create concrete kerbs and channels. The machine pushes concrete down into a mould where vibrators compact it into a uniform shape.

The Slipform machine has completed 26 kilometres of roadside drains on the motorway so far and is now making kerbs for the intersections.

Check it out in operation >

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The little yellow box beside the worker in the centre of the photo above is a Nuclear Densometer (NDM).
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The little yellow box beside the worker in the centre of the photo above is a Nuclear Densometer (NDM).

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Curious devices: The NDM and Benkelman beam

The Slipform machine is just one of the interesting machines helping build the road.

Read more >

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White quarry truck from the front.
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Quarry trucks parked up on access road to the temporary asphalt plant at Mackays Crossing.

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Trucks at Mackays

If you’ve driven on SH1 near Mackays Crossing in the past few months you might have seen a lot of trucks lined up on the Transmission Gully site access road. The trucks are parked there when not doing the ‘quarry run’ – delivering aggregate between the quarry and the Transmission Gully site. The quarry run is generally on weekdays between 10am and 3pm.

The trucks are usually parked with the tipper tray slightly up so they don’t collect water.

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Carving its way through the hills. Looking north towards Te Ara a Toa, with the Transmission Lines in the background.

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Keeping you up to date

We continue to remind all members of the public to stay safe and not enter the project site at any time. Work is underway in multiple areas and it remains a high hazard area.

If you have any questions, please contact us at info@tg.co.nz. If you have an urgent matter, please call the 24-hour project hotline on 0800 TGINFO. If we are working outside of our normal work hours and you’re one of our neighbours, we’ll be in touch with you directly as usual.

In our next newsletter, we’ll share a new flythrough video. With so much paving activity onsite over the past few months the site will look really different to the last flythrough we filmed in February.

But for now, haere rā from the Transmission Gully team.

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More information

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For more information on the Transmission Gully motorway project, contact us at 0800 TG INFO (0800 84 4636) or email us at info@tg.co.nz

Visit our website www.tg.co.nz

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We hope you enjoy reading these updates, and we’d love to hear from you. If you have any questions, comments or story suggestions, you can email them to info@tg.co.nz.

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