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Te hōhonu o ngā pāpuni o Tāmaki Makaurau

Auckland dam levels

The volume of water stored in our dams rises and falls throughout the year.

New display coming soon

We are working to replace this page with one that displays comprehensive dam level data that refreshes throughout the day.

How full are the dams?

Most of Auckland’s drinking water comes from 10 dams in the Hūnua and Waitākere ranges.

Total system storage is 76.7%

Combined total, updated weekly

This is how full the dams were on Monday 22 July.

Picture of dams.

About our dams

Take a deep diver into facts about our water supply dams.

Individual dam levels as of Monday 22 July

These figures are updated weekly on Monday mornings.

Waitākere Ranges

  • Waitākere Dam: 100% full
  • Upper Nihotupu Dam: 100% full
  • Upper Huia Dam: 77.97% full
  • Lower Nihotupu Dam: 100% full
  • Lower Huia Dam: 100% full

Hūnua Ranges

  • Cosseys Dam: 76.15% full
  • Wairoa Dam: 74.31% full
  • Upper Mangatawhiri Dam: 82.19% full
  • Mangatangi Dam: 65.39% full
  • Hays Creek Dam: 96.77% full