Airport Location Study

At a Council meeting on 24 August 2022, Councillors agreed that Ruatangata (referred to as Site 9 in the consultation document) was the best option for further investigation as a replacement airport location. 

The purpose of these investigations is to confirm if the site is suitable to be utilised as an airport and to prepare for a site designation process. Designation is a legal process that gives a site protection for a particular purpose. In this case, that would be airport use.  

Further technical investigations and studies covering a range of factors will also be completed at the site over coming years. 

Estimating the cost and producing an implementation programme for these studies will be one of the first jobs. 

Before any decision can be made whether to take planning forward for a site, many investigations need to be completed to assess difference runway alignments. The outcome of these studies could affect the way forward. Some of the topics for the study include:  

Ground suitability: what is the underlying ground like, and would it support a runway and buildings? How much earthworks would be required? 

Flooding: how flood-prone (or flood-proof) is the area? 

Transport links and changes: what roads would need to be built, stopped or rerouted to provide efficient, safe transport links to the potential new location? What is the impact on the wider transport network. 

The natural ecology of the area: what ecosystems exist in the area, how do they work and how would they be affected by or have an affect on an airport? 

Noise: what noise would be caused by an airport, how would it affect people in the area? 

Social impacts: what social impact would a new airport have on the people living in the area? 

Cultural factors: what affect would an airport have on cultural values in the area?  

Other: for example, what will be the impact on the archaeology and landscape, is there  any land contamination and what are the implications for planning requirements?  

Once all of these have been assessed, a design and multi-criteria analysis will take place for the selected alignments.  

Carbon Assessment and Climate Change Risk Assessment 

A Carbon Assessment and Climate Change Risk Assessment is required for the project to ensure we are meeting our climate obligations.  

Working with the community  

During these investigations we will continue to work with landowners, iwi, hapū, and other stakeholders, including Ministry of Transport and Air New Zealand. 

Choosing the runway alignment 

Council will look at a small number of of alignment options for the runway to identify the effect each will have, and which would be best. 

Staff will report back to Council on progress with further technical investigations, including whether or not any factors crop up that eliminate Ruatangata (referred to as Site 9 in the consultation document). 

For several years now Council, along with a project advisory group of representatives of the Regional Council, Government entities, Northland Inc, Air New Zealand and others, along with a Mana Whenua Advisory group of representatives appointed by Te Huinga, have been considering the future for an airport in the District.  

No decisions have been made to close or move the Whangārei Airport in Onerahi, but numerous factors have made it sensible for us to explore future options in recent years.   

In 2014 it became clear that the site might not be suitable for future changes in aircraft types given Civil Aviation Authority requirements for safety areas at either end of the runway.  

The existing airport at Onerahi has the shortest commercial runway in New Zealand, and while it can operate with the current Q300 airplanes, these airplanes will be phased out in future. The current ATR72 aircraft cannot operate from Onerahi due to its short runway. 

Civil Aviation Authority requirements may also change, causing problems for the Onerahi airport which has a short runway, no runway safety areas and a hill to the north of the airport. 

Council investigated reclaiming land to extend the runways or shifting the airport across the harbour to the Port Nikau area. Many factors ruled out these options including hills jutting into flight paths, plus resource management consenting issues for land reclamation.  

In 2017, in consultation with the advisory groups, the net was cast wider and a “desktop analysis” was undertaken of sites that might be flat enough, large enough and have open approach paths. The list was whittled down to 28, and assessments narrowed that list down further to the three that were consulted on in 2022.