(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).
(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).
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/