Auckland City Rail Link, NZ, 2030

Project purpose

The CRL is key to delivering the Auckland Plan, the City Centre Master Plan, the Long Term Plan and the Integrated Transport Programme.

  • Top transport priority for Auckland.
  • Auckland will grow by more than 700,000 people in the next 30 years and the CRL coupled with bus improvements is the only way to keep Auckland moving.
  • Current public transport will be unable to cater for this growth, hindering economic development.
  • The CRL will provide opportunities for development, particularly around the stations.


  • The CRL will mean more frequent trains with more direct services to the city centre.
  • Allow 30,000 people an hour in peak.
  • Allow on average better than a train every 10 minutes at peak for most Auckland stations.

Project details

  • The City Rail Link (CRL) will extend Auckland’s passenger rail system past Britomart to connect to the existing regional rail network at Mt Eden.
  • Britomart will become a through station with new stations near Aotea Square and Karangahape Road, and a redeveloped station at Mount Eden.
  • The current phase is to confirm and protect a route to enable future construction.
  • The CRL will use twin 3.4km long tunnels up to 42 metres below the city centre streets.
  • It’s estimated to take five and a half years to build at a cost of $2.5 billion when inflated to 2024.

Costs and funding
The current cost is $2.5 billion. Auckland Council expects central government to contribute 50% of the funding.

Key facts

  • Two new underground stations at Aotea (11m depth) and Karangahape Road (33m), and a redeveloped Mount Eden Station.
  • Cut and cover construction along Albert Street and at Eden Terrace.
  • Majority will be with tunnel boring machine (TBM).
  • 7.5metre diameter TBM (about half the size of Waterview TBM).
  • About 1 million cubic meters of spoil – more than Waterview because of station excavations.
  • 88 subterranean properties affected by tunnels.

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