City Rail Link
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Construction Status

Construction Status

For the latest notifications about construction in specific areas go to this section

Jeffie leaves

19 June 2019

From solving a stormwater issue in Auckland to helping the water supply in Ecuador.

She has just finished replacing the stormwater main around Mt Eden’s Water and Nikau Streets as it was in the path of the future CRL tunnels.

Jeffie heads to port June 2019.jpg

She's shown heading to port for her sea voyage.

The micro tunnel boring machine is off to dig a 4km long tunnel in the second biggest city in Ecuador, Guayaquil. Guayaquil is on a river estuary and the tunnel will take water from the river to a new treatment station.

The machines are given female names as an acknowledgment of St Barbara, patron saint of miners and tunnellers, and Jeffie will be blessed with a new name in Ecuador.

Lower Queen Street time-lapse

18 June 2019

This is a time-lapse of the construction in May 2019 around the former Chief Post Office and the Fletchers- built Commercial Bay.

Lower Queen Street/ Britomart update

28 May 2019

CRL Contractor Downer Soletanche-Bachy Joint Venture continues their tunnel box construction under Queen St and Britomart, as well as works to Britomart station in preparation for the new CRL line.

Construction of tunnel floors in Lower Queen St is progressing well and connection to the tunnels beneath the Commercial Bay development is being made. Beneath the Chief Post Office building, construction of tunnel floors is complete for both tunnels and construction of the tunnel walls has commenced.

Demolition of the existing secant pile wall between the station and the building has been completed in the northern tunnel and is currently underway for the southern tunnel.

In the Britomart Station, demolition of the stairs on the northern side of the escalators is now underway behind hoardings. Once this is completed, a new escalator and replacement for the existing three escalators can commence. These works will not affect station passenger access.

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Albert Street tunnel box update

25 May 2019

Tunnel box construction under Albert St is almost complete, with CRL contractor Connectus targeting having the last roof sections complete by the end of July this year.

Tunnel floor and tunnel walls are largely complete. Only four more sections of the roof need to be poured, and then we’ll be able to complete the backfilling under Customs St.

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Latest time-lapse video of the CRL Lower Queen Street construction

22 May 2019

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Drone fly-through around Lower Queen Street

21 May 2019

A drone fly-through look at the work building the tunnels at the former Chief Post Office (Britomart) and Lower Queen Street.

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Update on C1 contract around Britomart

29 March 2019

The Downer Soletanche Bachy Joint Venture ( DSBJV) is now only a couple of months away from celebrating its third year constructing City Rail Link’s Contract 1 at Britomart.

The JV team has recently completed the bulk excavation of two trenches under the CPO Building and Lower Queen Street (LQS), and is now working on the construction of the new train tunnels.

Lower Queen Street

Bulk excavation of the 14m deep LQS trench was completed this month, enabling DSBJV to complete breakthrough works to expose the new Fletchers tunnels underneath Precinct’s Commercial Bay site.

Two large breakers were used to cut and breakout a number of secant piles. Works are also underway on the exposed Precinct tunnels to ensure they are ready to connect to the new C1 tunnels.

Along the northern secant pile wall of the LQS trench, works are underway to construct the concrete in-fills that will eventually form part of the permanent drainage path across LQS.

Northern Tunnel

Construction of the concrete base slabs for the northern tunnel was being completed this week. Construction of the infill area between the tunnel walls and diaphragm walls is underway, and will be filled with sand/cement flow-able fill over the next few weeks.

Tunnel walls will be started in late April, ready for roof construction in mid to late May.

Southern Tunnel

The southern tunnel is approximately two weeks behind the northern. This is due to the necessary removal of the old pedestrian underpass that previously ran from the train station through to where Commercial Bay is being built. Concrete pours are underway in the southern tunnel, with three out of five base slabs now complete.

Construction of the in-fill section between the tunnel and the diaphragm walls has just commenced.

Britomart Station lower levels

In the lower levels of Britomart train station, the northern curved blockwork walls are in the process of being removed. This will enable the existing train line to connect to the tunnel portal, which is located between the station and the northern tunnel under the CPO.

In May, the stairs on the northern side of the escalators, between the station’s lower and middle levels, will be demolished. This will be followed by works to modify the existing escalators. Access and egress for station passengers will be maintained at all times.

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Latest section taking shape

08 January 2019

Construction has taken another significant step with work starting on construction of the first of the two rail tunnel boxes to be built under the heritage-listed Chief Post Office (CPO) building in lower Queen Street.

Seventy cubic metres of reinforced concrete is being poured for the first base slab, or some of the floor, of the northbound tunnel below the old building.

This pour was an important moment for City Rail Link Ltd (CRLL) and its Contract 1 (C1) contractor Downer Soletanche Bachy JV, says CRLL Chief Executive Dr Sean Sweeney.

“We’ve been working for this moment since July 2016 – for the past 30 months or so, this is what we have been gearing up for. That time has been a challenging one for our C1 contract in lower Queen Street and Britomart. Our teams have been working in some pretty demanding conditions, not only immediately adjacent to a live railway station but also excavating below sea level with the Waitemata Harbour only a few metres away. On top of that, some remarkable skill and innovation has been used to protect the CPO building so that we could get underneath it.”

Dr Sweeney says there is still a lot of work to be done in this area before both the northbound and southbound tunnel boxes are completed later this year.

“Once we’ve finished, it will be possible to walk the first section of the City Rail Link from Britomart station to beneath Albert Street as far as Wyndham Street. As for the CPO building, we are on track to reinstate and return it as part of the Britomart station in late 2020.”

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