Ngā kaupapa mahi mō te kōtuinga kākā-rangi Blue-green network projects

Our process for prioritising and developing our blue-green network projects.

We have identified 12 park and waterway areas around Auckland that can be used to help reduce flooding. These areas will help contain excess flooding, keeping more water away from residential areas. These systems are called blue-green networks and are part of our Making Space for Water programme.

We have been completing feasibility assessments for these 12 areas to understand the costs and benefits of building blue-green network projects.

The 12 projects are at different stages. Each one is either:

• going through an approval process
• under construction
• rejected as a blue-green network but with ongoing solution research.

Some of these projects are:

• co-funded by Auckland Council and central government
• linked to the Recovery Office's Category 3 buy-out.

This document shows the locations of blue-green network projects.

We develop blue-green projects in five stages. This process includes feedback from technical and environmental experts, mana whenua, local community groups and representatives.

Large projects like these can be expensive and disruptive. This five-stage process is expected to help with planning and completion times.

A feasibility assessment helps our Healthy Waters department decide:

• if there is a stormwater solution that could reduce flooding
• whether the project is practical and affordable
• whether the project is likely to get Governing Body and central government approval.

The concept design stage includes:

• an initial business case to predict benefits and costs
• feedback from mana whenua and the local board.

Once this is done, the Governing Body and central government decide whether to approve the project.

If approved, we develop and share the initial design with the community. Once the design is more fully developed, we apply for a resource consent. The resource consent includes:

• possible environmental impacts
• feedback from the community.

When resource consent requirements are met, we create a final business case, which includes:

• detailed costs
• technical design
• engineering plans.

From here, the Governing Body and central government can give approval to begin construction.

When funding and designs are approved, the council can sign contracts with construction partners and construction can begin.

We are continuing work on these blue-green network projects:

Email bluegreen@aucklandcouncil.govt.nz and ask to be added to our future developments mailing list.