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.

Tongariro Power Scheme Flow Changes

Genesis Energy will be undertaking an inspection of the Tokaanu Tunnel during which time no water will be diverted from the Tongariro River into the Poutu Canal and Lake Rotoaira. Flows will be higher in the Tongariro River below Poutu Intake (approximately 40 to 45 cubic metres per second (cumecs)) corresponding to a flow at Turangi of approximately 45 to 55 cumecs.

The work is planned from: Monday 3rd April until Friday 7th April 2017

Whilst the works are planned to be finished on Friday 7 April, they may continue after this date for a short period if maintenance is required.

Please be aware that the flows are subject to natural fluctuation (e.g. weather events) and generation flow changes.  

If you have any questions or require further information, please contact Abbie Fowler on (07) 984 1130 or use this page for flow information.

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) Date & time of 7 day max flow
Moawhango at Waiouru 0.7 28/03/17 17:00 0.7 25/03/17 13:50
Moawhango at Moawhango 1.6 28/03/17 17:00 2.2 27/03/17 19:15
Tongariro at Waipakihi 5.9 28/03/17 16:50 6.8 21/03/17 16:50
Tongariro at Rangipo 0.6 28/03/17 17:05 6.3 27/03/17 07:10
Tongariro downstream of Poutu Intake 16.1 28/03/17 17:00 22.5 27/03/17 06:25
Tongariro at Turangi 27.1 28/03/17 17:00 34.1 27/03/17 09:25
Whakapapa at Footbridge 11.2 28/03/17 17:00 13.0 27/03/17 09:50
Whanganui at Below Piriaka 23.1 28/03/17 17:00 30.2 28/03/17 01:35
Whanganui at Te Maire 45.6 28/03/17 17:00 48.4 28/03/17 06:20

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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