The City Rail Link Is Almost Here. Was It Worth It?

The City Rail Link has been part of Auckland’s scenery for so long — the cones, the hoardings, the diverted bus stops — that it is easy to forget it was ever meant to be finished. Now it is, very nearly. Sometime in the second half of 2026, trains will start carrying passengers through twin tunnels under the city centre. After a decade of disruption and a price tag that grew with the years, the obvious question is the one nobody official wants to answer plainly: was it worth it? We think it is worth a proper look.

What the City Rail Link Actually Is

Two Tunnels, Four Stations

Strip away the decade of orange cones and the City Rail Link is a simple idea. It is a pair of 3.45-kilometre rail tunnels, running up to 42 metres beneath the city centre between Waitemata Station — the place most of us still call Britomart — and Maungawhau Station at the old Mount Eden site. Along the way it adds two brand-new underground stations: Te Waihorotiu in the middle of town near Aotea Square, and Karanga-a-Hape below Karangahape Road, with entrances at Mercury Lane and Beresford Square. The official project site at City Rail Link bills it as New Zealand’s largest transport infrastructure project ever, and for once the superlative is earned. Four stations does not sound like much. What matters is what those four stations do to everything else.

Why Underground, Why a Loop

Auckland’s rail problem has always been Britomart. For all its handsome restored grandeur, it was a dead end — trains rolled in, stopped, and had to reverse back out the way they came. That single constraint capped how many services the whole network could run, no matter how many trains the region bought. The CRL fixes it by turning Waitemata into a through station, so trains can flow under the city and out the other side instead of banking up at the buffers. It is less a new line than a missing connection, the piece that finally lets the existing network behave like a network. That is why a tunnel barely longer than a decent harbour swim has taken so much money and so many years to justify.

The Long Road to a Short Tunnel

A Century of Almosts

If the CRL feels overdue, that is because it is — by roughly a hundred years. The first version surfaced in 1918, when the New Lynn Town Board floated a tunnel to Morningside. Serious schemes followed in the 1920s, costed at around a million pounds and then quietly abandoned in 1930. The 1970s brought Mayor Dove-Myer Robinson’s rapid-rail loop, with downtown and midtown stations and a stop at Karangahape Road, before the Muldoon government killed it in 1976 as too costly. Every generation of Aucklanders, it turns out, has been promised this tunnel and watched it evaporate. There is something bracing about standing on a finished platform that three earlier generations only ever saw on a planner’s drawing.

From Britomart to Boring Machines

The modern revival started with Britomart opening in 2003, which promptly proved how badly the city wanted rail by filling up faster than anyone forecast. The 2012 Auckland Spatial Plan named the CRL the region’s most important transport investment. Central government signed on in 2013, confirmed funding in 2016, and main construction began in 2018 under the Link Alliance. Test trains made their first full run through the tunnels in February 2025. From a 1918 town-board minute to a test train is a hundred and seven years — a useful reminder that big infrastructure here moves at the pace of political patience, not engineering.

What Changes When It Opens

A Network, Not a Dead End

The headline benefit is frequency. Once trains can run through the city rather than reversing out of it, Auckland Transport can schedule far more services across the Western, Southern and Eastern lines. AT’s own explainer, Auckland’s new network in 2026, frames the CRL as the spine of a single connected network knitting trains to frequent bus routes. The practical promise is that turning up without checking a timetable becomes reasonable — the turn-up-and-go standard that every functional metro takes for granted and Auckland never quite managed.

The Stations Themselves

Te Waihorotiu, in the heart of midtown, is expected to be the busiest train station in the country the day it opens — a remarkable claim for a platform most Aucklanders have never seen. Karanga-a-Hape finally delivers the K’Road stop the 1970s plan promised, dropping rail commuters straight into the city’s most characterful strip. Maungawhau, rebuilt on the Mount Eden site with four platforms, becomes the big interchange between the CRL and the Western Line. And Waitemata keeps the Britomart hall but loses its dead-end. Four stations, each doing a different job, all pointed at the same goal: getting more people into the city without a car.

More Trains, and the Quiet Upgrades

The tunnel grabs the attention, but a lot of the real work happened out of sight on the wider network. KiwiRail has rebuilt junctions at Waitemata, Maungawhau, Otahuhu, The Strand and Newmarket, added power feeds, and completed the electrification between Papakura and Pukekohe, so southern commuters can finally ride straight through to the city. New stations at Drury and Paerata are due to open in the same window, with Ngakoroa following in 2028. None of this makes a postcard. All of it is what actually lets the CRL run more trains, more often, without the network falling over the first wet Monday.

The Bill

What It Cost to Build

Here is where the warmth cools. The CRL is the most expensive transport project the country has ever attempted, and its budget climbed steadily across the years between first estimate and finished tunnel — a familiar trajectory for megaprojects everywhere, and a sore point for ratepayers who have watched the number move in only one direction. We will not pin a single construction figure to it, because the project’s headline cost has been quoted so many ways over so long that precision would be false. What is not in dispute is that it cost a great deal more than the comfortable round numbers Aucklanders were shown when the boring machines first went in.

What It Costs to Run

Building it is only half the ledger. Operating the finished railway is reported to cost Auckland ratepayers around $220 million a year from 2026, with interest the single biggest line at roughly $160 million a year. Those are sobering figures, and they are the part of the story least likely to appear in the ribbon-cutting coverage. A tunnel does not stop costing money the day it opens; it simply changes which budget the cost lands in. Whether that annual bill is a burden or an investment depends entirely on how many people actually ride the thing — which brings us to the only question that matters.

So, Was It Worth It?

The Case For

If the CRL does what every comparable project overseas has done, the answer is yes, and not narrowly. Unlocking the network roughly doubles how many people the rail system can move into the city centre, takes pressure off roads that cannot be widened, and makes dense housing near stations genuinely viable. Cities that built their underground links rarely regret them a generation later; they wonder how they ever managed without. Auckland has spent a century being a city that drives because it had no real alternative. For the first time, a meaningful share of Aucklanders will have one.

The Case Against

The honest counter is that the bill is enormous, the operating subsidy is permanent, and the benefits only materialise if patronage hits the forecasts — forecasts that assume behaviour change Aucklanders have not always delivered. Spend that much money and the opportunity cost is real: bus lanes, cycleways and frequency upgrades across the whole region might have moved more people sooner for less. A tunnel is a magnificent thing to point at. Magnificence is not the same as value, and the people writing the cheques are entitled to ask whether the same money spread thinner would have done more good.

Our Take

On balance, we think it was worth doing — and worth doing properly, which it largely was. The mistake was never the tunnel; it was a century of deferring it until it became the most expensive possible version of itself. The CRL will work, Aucklanders will use it, and in twenty years the cost arguments will read like the ones people once made about Britomart: technically correct and entirely beside the point. The real test starts the day it opens, on a wet morning, when the trains are full and nobody is checking a timetable. We will be on one of them, quietly pleased, and only a little tired of waiting.

The City Rail Link was never going to please everyone, and a project a century in the making was always going to arrive carrying a hundred years of argument. What we can say is that the tunnel does something real: it turns a dead-end railway into a network, and gives a car-bound city a genuine alternative for the first time. The cost was steep and the operating bill is permanent. But the worst decision Auckland made about the CRL was not building it — it was waiting so long that the building became this expensive. It is here now. The smart move is to use it.