Tongariro River work ahead of schedule February 11th, 2020 2008-12-05T16:03:09+13:00 The Poutu Canal outage has been progressing ahead of schedule. The original completion date was 23 December, however, the likely finish date for this project is now between 16 and 19 December. When the project is finished the canal will be reinstated, reducing the flow in the Tongariro River below Poutu Intake to 16 cumecs. General