The herald this week ran a large piece on the projects under construction as part of the Western Ring Route (WRR) including aerial photos of the progress. The projects covered were:
- The Waterview Connection breaking it down by:
- The Southern end
- The Northern end
- The Waterview interchange
- The raising and widening of the Northwestern Motorway Causeway
- The Te Atatu Interchange
- The St Lukes Interchange
- The Lincoln Rd Interchange
But the thing that got me about the article was this part
The 4.8km link between the Southwestern and Northwestern Motorways will fill the last-but-one gap in the 48km Western Ring Route. It will bypass the city to the west and link Manukau, Auckland, Waitakere and North Shore.
All that will be left to complete, by about 2019, will be a $500 million-plus motorway-to-motorway interchange at the northern end of the route.
It’s made to sound like it’s some sort of minor completion task but in reality at $500 million it would be the second most expensive road project in Auckland after the Waterview tunnels. What’s more it’s all just to satisfy some transport planners desire to make a map look prettier.
The project is more than twice the cost of a similar junction at Manukau built just a few years ago. It’s even almost enough to get a fully offline busway all the way to Silverdale – not that it’s needed that far yet (but NEX services to Silverdale are). It will be eclipsed in price any time soon by $800 million Puhoi to Warkworth motorway (if it goes ahead).
Further it’s also technically incorrect to say that’s the final project for the Western Ring Route as there is still an estimated $100 million upgrade of the Royal Rd interchange (and associated widening either side of it) that will be left to do. Also needing to be included are the costs of widening the Northern and Southern motorways either side of the western ring route which the NZTA say are needed to handle the traffic from the WRR.
All up over the span of the roughly 13 years that we will have actually been building it, the Western Ring Route will costing us almost $4 billion. That’s on top of other major motorway projects that have been/are going on like the Victoria Park Tunnel, Newmarket Viaduct replacement and the myriad of projects the government announced last year they would fast track. Here’s a breakdown of the costs of the various WRR Projects
It’s the ability to really break some of these mega projects down into small chunks that I think has been instrumental in Auckland forging ahead with so many motorway projects ahead of other transport investments. Projects like the CRL have suffered because they require the entire thing to built before they become usable and the price tag then looks scary. However spreading out the cost of the CRL over the years it will take to build shows that annually it’s about the same as what we’ve been pouring into these motorway projects. (note: cost of CRL in today’s dollars is ~$1.8 billion other costs often quoted include extra trains for an inefficient operating pattern and future inflation).
All of this makes me wonder how different the public would have perceived these projects if upfront they had been told it would have cost almost $4 billion to build. Would public sentiment about what transport projects we should build be different if we could have had a more realistic discussion about how much things cost.