Groyne changes at the river mouth, June 2019

The diggers did great work over the last two days and it’s good to see the rock groyne now lines up with the river and has been bolstered. The rocks have been laid fairly broad and low rather than narrower and higher.

With any luck this change will reduce the erosion caused by the river in times of flood, storm and high-tide by helping it move towards the sea rather than doubling back to the dunes.

The digger driver also shaped the vehicle entrance before leaving. It should at the moment keep any driver happy for ease of use.

The groyne now follows the upstream course of the river and bank.
The groyne now follows the upstream course of the river and bank.

Update 11 July 2019: John Foxall from Horizons Regional Council let us know: The final cost to remove the high angle groyne was $4,625 plus gst.

The built-up rock groyne.
The built-up rock groyne.
A freshly shaped vehicle entrance.
A freshly shaped vehicle entrance.

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Waikawa Beach or Manakau

New Zealand

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