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Project newsletter – July/August 2020

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Kia ora

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

Since our last update in June we have continued to make good progress, given the expected weather challenges at this time of year. We are looking forward to getting to the other side of the more difficult winter work conditions as we continue to build up our construction rate to pre-COVID-19 levels of work activity. This includes weekend shifts and nightworks at a number of places, when weather allows.

The flip side of the wet weather is that it is great for planting. Our environmental teams have kept up the push to get plants into the ground while the earth is wetter. If you drive through the SH58 Pāuatahanui interchange, you’ll see closely planted young saplings covering the embankments on either side of the overbridge.

Our timelapse video footage of the Wainui Saddle area (below) shows the progress we’re making in the most challenging earthworks area of the build.

Our construction update and aerial photos give you a closer look at progress right along the 27 kilometre alignment. The before and after image of the project’s largest structure, the bridge over Cannons Creek, gives a great picture of progress as sections start to show the final form they’ll have.

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 along the 27 km route 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.

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Wainui Saddle looking north towards the Kapiti Coast.
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Wainui Saddle looking north towards the Kapiti Coast.

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Focus on Wainui Saddle works

One of our most active work sites is the Wainui Saddle, which is the highest point on the new road and marks the boundary between Porirua City and Kāpiti Coast District. This short section of road represents only 800 metres of the 27 kilometres of new motorway but is one of the most complex earthworks challenges on any project in New Zealand, due to the scale of the work, steepness of the terrain, and the Ohariu earthquake faultline running right through the middle of the saddle.

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Aerial photo of current State Highway 2 with two bridges under construction going over the top.
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Interchange with SH1 at Linden working on the southbound connection.

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Construction update and aerial photos

Earthworks and drainage are continuing up the Te Puka Valley from Paekākāriki to the Wainui Saddle. Rock excavated from the saddle area is being carefully placed as fill to build up the road layers. We can keep working in wet winter conditions by adding lime which dries out the material to ensure it meets required specifications for strength.

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Keeping you up to date

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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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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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