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Disposal of dredged material

​In November 2018 Ports of Auckland applied to the Environmental Protection Agency (EPA) for consent to dispose of dredged materials at sea and in July 2019 we received official confirmation that our consent has been granted.

​​ ​​​​​​​​​​​​​​​​​​​​​​​Previously, our dredged material has been turned into mudcrete and used for our reclamation projects – most recently the Fergusson Container Terminal extension. With us ending reclamation, it's great to get this consent as it means we will have somewhere to dispose of our dredged material and we can keep operating and serving Kiwis for another three decades – until 2054 if needed. This consent is also a key component of our 30-Year Master Plan. You can learn more about our Master Plan at

Ports of Auckland carries out two types of dredging:

  • Maintenance dredging: regular dredging to maintain our channel and berths at the required depth by removing any sediments which have built up over time. Most of our dredging is for this purpose.
  • Capital dredging: typically infrequent or one-off dredging carried out to deepen new or existing facilities in order to allow larger ships access.

This consent was essential for both types of dredging now that we are putting an end to reclamation.

The next step is to apply for consent to deepen the Waitematā Navigation Channel to allow for larger ships to access our port. This is a capital dredging project that we would implement in two stages, firstly to accommodate 6,000 – 7,000 TEU vessels and then secondly for new Panamax class vessels, which can carry upwards of 12,000 TEU. You can learn about what this means, why it needs to be carried out and what would be involved in the here.​ 

If you'd like to know more, please contact Senior Community Engagement Advisor, Jordan Hurinui, on [email protected] or Senior Environmental Advisor, Nigel Ironside, on [email protected].