The majority of the Regional Council’s work is focussed on maintaining $420m worth of flood defences it owns across the Bay of Plenty. These defences include stopbanks, flood gates, floodways and spillways.

Our team also develops plans and policies with communities across the rohe, to reduce the impact of flooding. Examples of this work includes Bylaws to protect flood protection and drainage infrastructure.

Technology and monitoring systems, that provide the latest information on rainfall and river levels, also underpins our work.  This is work is managed through our Flood Hub team who support agencies, such as Civil Defence and Emergency Management, during a flood event.

What our flood defences do

We have nearly 400km of stopbanks in the Bay of Plenty and we often talk about the dangers of seepage – so what is this?

We have hundreds of floodgates around our region - so what are they and what do they do?

How does a floodway and spillway help reduce pressure on our rivers and stopbanks?

These pumpstations move water throughout XX kilometres of Council owned or managed drainage canals across the region.

 

The size and number of pumps in a pump station is based on river and drainage scheme areas and flow rates required to clear flood water within three days.

 

Pumps typically turn on in a staged manner as water levels rise to provide increased pumping capacity and removal greater amounts of water from the drains as they become fuller. The pumps also stop automatically when the water level gets down to a set height.

Flood defences in action

Our flood defences operate across four major river schemes and one drainage scheme in the Bay of Plenty.

Our team also develops plans and policies with communities across the rohe, to reduce the impact of flooding. Examples of this work includes Bylaws to protect flood protection and drainage infrastructure.

Technology and monitoring systems, that provide the latest information on rainfall and river levels, also underpins our work.  This is work is managed through our Flood Hub team who support agencies, such as Civil Defence and Emergency Management, during a flood event.

Looking after flood defences long term

The Council is required to implement plans that set out how it is going to ensure flood defences are managed well over the next 50 years.

This asset management plan’ also highlights how the Council is working to manage issues associated with flooding and drainage including work on long-term flood defence sustainability and shifts needed due to climate change.