Setting the record
During construction, a New Zealand distance record was set for the 1,030 m continuously drilled shot. This was the first time an installation in a single shot greater than 1,000 m had been achieved in New Zealand.
Along the way to this record, numerous challenges were faced and overcome, including a very shallow gradient (as low as 0.5 per cent), a highly-curved alignment and difficult soil conditions (alternating between soft clay and sandstone) all through an exceptionally sensitive environment.
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