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About 15 per cent of the mix is reused pavement from the Wellington Airport runway. “We’re not having to use new resources, crushing new aggregate and bitumen, and it means it’s not going into the landfill, we’ve brought in about 13K tonne, which if it wasn’t recycled would end up in one of the local landfills,” Duncan Mundell, of Fulton Hogan, said.
ROSA WOODS
Paving work on Transmission Gully is near the halfway point. The logistics of getting the asphalt over the saddle to the road is a tightly choreographed dance. Asphalt is dropped out of the plant into loading trucks at about 180 degrees Celsius and must be laid at around 165 C, giving a limited time to get the molten rock over the hill and to the paving site.
The first stage of repairs saw 8.9km of the expressway relaid by March 2019. Work on the larger section was meant to be completed in the first half of 2020, but was delayed due to Covid-19 and bad winter weather. “We need warm, dry weather to successfully complete resurfacing work and to make sure the new surface is performing well,” Waka Kotahi Senior Manager Project Delivery Andy Thackwray said. “We know this work has been disruptive, and we appreciate the patience and understanding of the public,” he said.
KEVIN STENT/Stuff
The $649 million Kāpiti expressway opened in February 2017, but has been plagued with issues ever since.