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Jeffie the tunnel boring machine completes job for Auckland City Rail Link

A tunnel boring machine has completed its 423-metre underground journey below Mt Eden for the Auckland City Rail Link project.
The tunnel, which is 17m below the surface, will be used as a stormwater drain that was required because the existing drain was in the path of the rail link.
A micro-sized tunnel boring machine, known as Jeffie, was brought in from France to carry out the dig.
Since work began in January, Jeffie has removed 2000 cubic metres of spoil and was used to install 208 concrete segments.

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The tunnel boring machine, known as Jeffie, was used to help create the City Rail Link. Source: Supplied
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