Tongariro Riverflow

Water is utilised from rivers in the Tongariro, Whangaehu, Rangitikei and Whanganui catchments.

River flows can vary quickly and it is a good idea to check the weather forecast and assess flow conditions on the river before heading out. In some river systems, rainfall in headwater catchments will result in rapid increases in river levels downstream where there may be little rainfall.

Genesis Energy will be undertaking an upgrade of communications equipment on the Poutu Intake on the Tongariro River from 27 April to 1 May.

As part of the upgrade, the intake gates will be tested between 10pm (Sunday 30 April) and 2am (Monday 1 May). During this four hour period overnight the downstream river flows will rise and could fluctuate.

Flows will be higher in the Tongariro River below Poutu Intake during this time. Ring the Genesis Energy flow Phone on 07 386 8113 for flow information.

We have planned this work at night to minimise the effect on downstream river users and note that the work is subject to weather conditions allowing it to proceed.

Please be aware that the flows are subject to natural fluctuation (e.g. weather events) and generation flow changes. Please feel free to share this information with other river users (i.e. via website or social media pages).

If you have any questions or require further information, please contact Abbie Fowler on (07) 984 1130 or

Click on the site name to see recent flow trends.

Monitoring site Flow in last hour (m3/sec) Date & time of measurement 7 day max flow (m3/sec)
Moawhango at Waiouru 0.8 19/08/17 02:00 1.4
Moawhango at Moawhango 7.9 19/08/17 02:00 14.4
Tongariro at Waipakihi 26.6 19/08/17 02:00 56.2
Tongariro at Rangipo 0.7 19/08/17 02:00 16.3
Tongariro downstream of Poutu Intake 16.2 19/08/17 01:55 26.8
Tongariro at Turangi 49.3 19/08/17 02:00 68.3
Whakapapa at Footbridge 3.2 19/08/17 01:55 68.7
Whanganui at Below Piriaka 59.8 19/08/17 02:00 157.0
Whanganui at Te Maire 170.9 19/08/17 02:00 287.0

This hydrology information has been compiled by Genesis Energy for general information purposes only. The data shows rainfall and river flow information, it is not a forecasting tool.  River users should check rainfall and river flow data, alongside weather forecasts to make a decision about whether it is safe to enter waterways. Genesis Energy does not warrant the accuracy or completeness of the information nor does it accept any liability or responsibility for any error, inaccuracy or omission in the information or for the use of such information by any person for any purpose.

If you have questions or comments you can contact Genesis Energy's Hydrology Staff.

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