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$22 billion on just one 95km road ($232 million per km) (www.greaterauckland.org.nz)

submitted 4 months ago by rimu@piefed.social to c/politics

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(everyone knows roading budgets usually blow out - the total final cost of Transmission Gully appears to be $2.5bn – double the projected cost of $1.25bn).

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[–] GGNZ 2 points 3 months ago

I saw this recently

"Even so, the numbers are staggering. The section between Whangarei and Te Hana is expected to cost $15.3-18.3 billion, and this doesn’t include the cost of the Warkworth to Te Hana section which is expected to start construction next year and was most recently estimated to cost $2.9-3.8 billion.

Combined, that’s $18.2-22.1 billion – which is incredible for a road that for most of its length carries only 10-15,000 vehicles a day.

To put the cost a different way: if usage of the road more than doubled to 30k vehicles per day (which is more than most parts of the Waikato Expressway) over a 30 year span, that would still work out at nearly $70 per trip include the cost of operating and maintaining the road."

https://www.greaterauckland.org.nz/2025/10/21/rons-reality-needs-to-bite/