Skip to main content Skip to footer
Menu
whakatane view whakatane view

Project Future Proof

Project Future Proof: Upgrading the CBD flood defences
Te Kaupapa Tiaki Āpōpō: Te mahi whakapai ake i ngā ārai waipuke i te CBD

Project Future Proof is a multi-stage project to upgrade flood defences (stopbanks and floodwalls) along the Whakatāne CBD stretches of the Whakatāne River / Ōhinemataroa.

Find out more about our flood protection efforts across the rohe.

Why are we doing this?

Flooding is the most common natural hazard in Aotearoa, with a major flood event occurring on average every eight months. As the climate changes, communities across New Zealand need to adapt to meet the challenges of a rising sea level and more frequent, more significant rain events that may cause flooding.

Flood protection is the first line of defence when it comes to reducing the risk of significant flood events to people, property and livelihoods. That’s why we need to upgrade the current CBD flood defences: To handle the weather events we’re experiencing now, while allowing for the future impacts of climate change that are predicted to come (such as increased rainfall and sea level rise). 

As well as focusing on the CBD, we are also working with community groups and organisations along the whole river to look at different long-term flood management options.

This project is one of the many we have underway across the rohe to manage, maintain and improve our flood protection network (worth more than $400m).

What’s happening? 

The first part of Project Future Proof is to upgrade stopbanks and floodwalls along the awa that have seepage issues.

Seepage is when water passes through a stopbank when the river level is high. While controlled seepage is good for relieving pressure within the stopbanks, excessive, uncontrolled seepage can lead to stopbanks collapsing.

While we’re doing the seepage control work, we’ll also be raising the height of the floodwalls. This height increase is based on increased flows in the awa (due to climate change and predictions for sea level rise).

The second part of the project will be to raise the flood defences in the areas that do not have seepage issues.

future proof map

Throughout this project, we are working closely with Whakatāne District Council and Te Rūnanga o Ngāti Awa. Together, our vision is to create a space along the waterfront that functions well in increased, heavy weather events, while ensuring the community can continue to feel connected to the awa.

Completed December 2024

Stage One improved the flood defences from McAlister Street Pump Station to the Whakatāne iSite.

In areas where there are stopbanks (McAlister Street Pump Station to Yacht Club), the width and height has been increased. In areas where there are floodwalls (Yacht Club to iSite), these have been removed and replaced by new floodwalls.

We are working alongside our project partners to develop a design/narrative that will be placed on the floodwall to enhance the look of the wall along the walkway side. This is expected to be installed in early 2025.

wall pattern

As part of the upgrade, access to the Warren Cole Walkway from the shopping area across the road has been improved and the walkway has been widened, making it easier for users to share the path.

Construction began February 2025

Stage Two covers the area from the Whakatāne iSite through to the end of Quay Street.

Due to the size and scale of Stage Two, work will progress in several stages. These stages include:

  • Quay Street east (Wairere Bridge to the end of Quay Street, in front of the Regional Council building) 
  • Quay Street west (Whakatane iSite to Wairere Bridge) 
  • Wairere Stream foot bridge

Key features of this work:

  • Upgrading the flood defences: This includes removing the existing floodwall and creating a new one.
    diagram of floodwall
  • Increasing the width of the shared use pathway for pedestrians and cyclists.
  • Improving the pedestrian footbridge across Wairere Stream.
  • Retaining existing vegetation where appropriate, including large pōhutukawa  trees, and establishing new garden beds.
  • Retaining existing carparking arrangements.
  • Ensuring access to the river (awa) is maintained.

map and diagram

Scheduled to begin late 2025

Future stages are planned to upgrade flood defences from the end of Quay St to the end of the Muriwai Playground and alongside the Wairere Stream. In these areas, we know we need to improve seepage control and raise stopbanks, as part of our programme of flood mitigation work to address the impacts of a changing climate.

There is still a lot of detail to work through and decisions are yet to been made on the design or construction of flood protection in these areas.
We will share more information once the designs for these stages are ready.  

How will you be impacted? / Ka pēhea koe e pāngia?

Please note, this information was updated on 12 January 2025. We will provide further updates as information becomes available.

While construction of Stage Two is underway, there will be some disruption to the community and near-by businesses (including vibrations and construction noise).

Work has begun at the eastern end of Stage Two (Quay Street in front of the Regional Council building to Wairere Stream footbridge). The riverside carparks, walkway and work area are now closed off to the public. A detour for walkway users has been established on the other side of Quay Street.

Quay Street remains open to traffic, however, at times may need to close to enable access to the worksite. Please follow all signage and instructions from staff in the area.

For week specific disruptions, please read the weekly update at the bottom of this page.

Stay up to date

We’ll use this page to keep you regularly informed of what’s happening on the work site, so please subscribe to receive these regular updates in your inbox.

Subscribe to receive updates

Frequently asked questions

There are two main reasons:

The first is because we need to fix and improve areas where there is seepage. Seepage is when water passes through a stopbank when the river level is high. While controlled seepage is good for relieving pressure within the stopbanks, excessive, uncontrolled seepage can lead to stopbanks collapsing, putting people, property and livelihoods at risk.

The second reason is because these flood defences are not meeting their current level of service for a significant flood event. We have an agreed level of service with the community through our Long Term Plan, which means we have to provide flood protection that can withstand a flood event of a certain size and scale. In the case of Whakatāne CBD, the flood protection needs to be able to meet a 1% annual probability event through to 2040.

To achieve this level of service, the flood defences need to be upgraded to protect the town against the future impacts of a changing climate (such as increased rainfall and sea level rise).

We use several methods and data sources:

  • Previous flood events, which we can use the learnings from to determine what might happen in the future.
  • Modelling to predict what influence a changing climate might have, for example sea level rise and increased rainfall.

This is all analysed and recommendations are made. This is then peer reviewed before final heights are confirmed. This process is both common and best practice.

We then take this information and use a method called ‘back casting’, where we look as far as 100 years into the future and what flood protection might be required at that time, and then work backwards to make sure what we put in today fits in with that long term solution.

The modelling we have done at this point shows we don’t need to update the upstream stopbank sections this time as they are still meeting the level of service required.

To provide some context, the ‘spit fuse’ is a sand spit at the mouth of the Whakatāne River / Ōhinemataroa where it meets with the Piripai spit.

It is regularly lowered so that it can be better eroded by river flow, to provide an overflow path and increase the overall capacity at the river mouth. Regional Council’s Duty Flood Manager does monthly surveys and will report if it needs to be lowered, and Whakatāne District Council holds the resource consent to do this maintenance work on the spit.

In 2023, BOPRC and WDC jointly commissioned a review of 26 existing reports on the use of the spit fuse as a flood mitigation and response tool. The key findings from this report were that the effectiveness of the spit fuse decreases with increasing sea levels (due to climate change) and it will not provide the necessary flood protection in events where the sea conditions are extreme.

This means that while the spit fuse could be useful in small storm and flood events (where we don’t have high sea levels or storm surge), it does not provide effective flood protection in large scale events (which is what we are designing the flood protection in Whakatāne CBD to help withstand). 

The build-up of silt banks in the Whakatāne Harbour are mostly at a level below high tide level and all are below a level when storm surge occurs. This means that removal of the silt banks will just be replaced by water in the short term. This is what we call dead storage. Consequently, when we have a flood event that will extend through a high tide cycle, there is no advantage on whether there is a silt bank or water present.

In any case, during high river flows, the silt banks can be washed away. When there aren’t large flows, the silt builds back up, only to be washed away on the next cycle. This is why, when we look at our modelling (that considers the effects of floods over the years), the river profile hasn’t changed much since 1969.

No. Most of the flood defences we are upgrading will replace what is existing. Where we are creating new flood defences, we will be working closely with Whakatāne District Council and Te Runanga O Ngāti Awa to ensure the community can continue to have access.

We want to ensure that what we design not only functions well in the face of future floods, but is also a place that the community can continue to feel connected to the awa. 

During construction, the same level of flood protection will be maintained to what it is now. The contractor is only removing existing flood defences that can be reinstated quickly should a flood forecast predict high Whakatāne River levels.

However, it’s important to note that the CBD flood defences (stopbanks and floodwalls) do not currently meet the agreed level of service for flood protection. We have an agreed level of service with the community through our Long Term Plan, which means we must provide flood protection that can withstand a flood event of a certain size and scale. In the case of Whakatāne CBD, the flood protection needs to be able to meet a 1% Annual Exceedance Probability (AEP) event through to 2040.

The agreed level of service will not be achieved until all four stages of Project Future Proof have been completed.

As the climate changes, communities across New Zealand are adapting to meet the challenges of a rising sea level and more frequent, more significant rain events that may cause flooding.

One of the main issues facing communities around New Zealand is balancing the ability of ratepayers to pay for this work while keeping up with ongoing changes in our climate.

Over the coming years, there will be further conversations about how we manage this and at the heart of achieving this balance is regular community engagement, to look at different flood management options. Getting this right will help minimise and manage the risk to the community, their property and livelihoods.

Regional Council has worked with Central Government to support funding of the project. This work has resulted in Central Government committing several million dollars to Project Future Proof, which has lessened some of the direct costs to ratepayers.

Stage One was budgeted at $5.9m and has been constructed over two financial years 1 July 2023 – 30 June 2025. This stage has received funding of $4m from the Central Government Climate Resilience Fund.

Stages Two, Three and Four have a budget of $17.82m and are being constructed over three financial years, 1 July 2024 – 30 June 2027. These stages have received $10.69m in grants from Central Government’s Regional Infrastructure Fund.

Project updates

sheet piling
19 HOURS AGO Weekly update 10-03-2025

The sheet pile work has paused at the eastern end of Stage Two (Wairere Stream Bridge to the end of Quay Street in front of the Regional Council office) so the existing culvert (covered drain) at the end of the construction site can be replaced.

7 DAYS AGO Weekly update 03-03-2025

This week capping beam preparation and installation will continue.

Work on replacing the existing culvert (covered drain) at the western end of the construction site is scheduled to start mid-week. We’ll be back to do the remaining sheet pile work once the drainage replacement is finished.

14 DAYS AGO Weekly update 24-02-2025

This week the lead contractor began physical works on the construction site at the eastern end of Stage Two (Wairere Stream Bridge to the end of Quay Street in front of the Regional Council office).

21 DAYS AGO Weekly update 17-02-2025

This week we will begin installing the sheet piles. 

28 DAYS AGO Weekly update 10-02-2025

Work will begin this week at the eastern end of Stage Two (Quay Street in front of the Regional Council Offices to Wairere Stream footbridge).

map of works
A MONTH AGO Weekly update 03-02-2025

Stage Two construction crews will on site from Monday, 10 February and work is expected to be completed toward the end of this year.

2 MONTHS AGO Milestone moment: Stage One of Project Future Proof complete

The first stage of Project Future Proof, a multi-stage project to improve the flood protection infrastructure in the Whakatāne CBD, is now complete.

This milestone moment was celebrated on Friday morning [SUBS: December 20] by project leads Toi Moana Bay of Plenty Regional Council, alongside partners Whakatāne District Council and Te Rūnanga o Ngāti Awa, with a karakia led by hapū representatives.

Read the full media release.

8 MONTHS AGO Concrete pouring on Stage One of Project Future Proof begins

Stage One of Project Future Proof has reached another milestone, with the concreting of the floodwalls to begin early next month.

Project Future Proof is a multi-stage, multi-year project, led by Toi Moana Bay of Plenty Regional Council, in partnership with Whakatāne District Council and Te Rūnanga o Ngāti Awa, to upgrade the flood defences in the Whakatāne CBD so they can continue to reduce the impacts of a serious flood event on the community.

10 MONTHS AGO Stage 1 of Project Future Proof is on

Thanks for your patience Whakatāne as we work to improve the floodwalls and stopbanks in the CBD!

You’ll have noticed that construction is underway from the Whakatāne iSite to McAlister Street Skate Park.

If you’re walking you’ll be redirected to the other side of the road, while traffic headed towards Whakatāne Heads will be guided through town.

 

 

A YEAR AGO Construction begins on Stage One

Stage One of this multi-stage, multi-year project to upgrade the stopbanks and floodwalls in the Whakatāne CBD has begun. We’ll be starting along the Warren Cole Walkway between the skate park and the iSite (Stage One), and working our way downstream over the coming years.

A YEAR AGO Prep work begins on Stage 2 of Project Future Proof

BECA, on behalf of Regional Council, will be doing topographical surveying along Quay Street for a week-long period, starting Tuesday 9 January (weather permitting), in preparation for Stage Two of Project Future Proof.

Whakatane
A YEAR AGO Utility testing on Kakahoroa Drive; access limited

Contractors, on behalf of Regional Council, will be conducting investigative work along Kakahoroa Drive at the end of July for up to five days (weather permitting).

5436 Whakatane Surveying Map
2 YEARS AGO Survey work

We’ll be out and about doing some surveying work on a section of the Whakatāne River front this week.

This is all part of our investigations for Whakatāne Future Proof which is a programme of work to ensure the stopbanks and floodwalls along the town centre will continue to help protect our community from flooding now, and in the future.

5436 Whakatane Warren Cole Walkway Map
2 YEARS AGO Warren Cole River Walk in Whakatāne

We wanted to give a heads up to users of the Warren Cole River Walk in Whakatāne that there will be some disruption from today.

Waitarere Stream
3 YEARS AGO 2 July update

Bay of Plenty Regional Council will be doing investigations along the Wairere Stream from Quay Street to Wairere Falls next week as part of its efforts to understand more about the condition of Whakatāne’s flood defences.

Geotech Map
3 YEARS AGO Geotechnical Investigations Mataatua Reserve

One of Bay of Plenty Regional Council’s core roles is to make sure our infrastructure is protecting our people, property and livelihoods.

In Whakatāne that means making sure that our stopbanks and floodwalls will continue to protect the community from flooding in the coming decades.