Tā mātou mahi

We research important infrastructure issues, advise on policy, provide expert project support, and share data on both upcoming projects and infrastructure performance.

Our work
Mahere Tūāhanga ā-Motu

We're working on a National Infrastructure Plan that will help guide decision-making by both central and local government and give the infrastructure industry more confidence to invest in the people, technology and equipment they need to build more efficiently.

National Infrastructure Plan
Te Rārangi mahi

The National Infrastructure Pipeline provides insights into planned infrastructure projects across New Zealand, giving industry information to help coordinate and plan.

The Pipeline
Te hītori

We're here to transform infrastructure for all New Zealanders. By doing so our goal is to lift the economic performance of Aotearoa and improve the wellbeing of all New Zealanders.

About us
Ngā rongo kōrero
Transmission Gully

With large public infrastructure investments, it’s good practice to learn from project successes and challenges.

In August 2020, the Government directed Te Waihanga to oversee an independent review of how the Transmission Gully Project was commissioned. When this was released, in April 2021, the Government instructed Te Waihanga to do a further review once the project was complete.

The Post-Construction Review looks mainly at the construction phase and preparations for ongoing management of Transmission Gully, focussing on how well the Transmission Gully Project has delivered on its investment objectives in the 2014 Detailed Business Case.

We have released the review’s executive summary and recommendations, together with our own foreword commentary that highlights key lessons and provides further relevant project context of events occurring beyond the period covered by the Review.

About the reviewer

The Post-Construction Review is being undertaken by Steve Richards – who also carried out the Transmission Gully Interim Review.

Steve has over 25 years’ experience supporting the Australian Government on major road and rail projects. He has worked across both the private and public sectors and is a leading expert in assurance and Gateway reviews, having led and participated in several major reviews for Infrastructure New South Wales and the Australian Government, covering the transport, schools, justice, health, education, water and telecommunications portfolios.

Transmission Gully post-construction review: Executive summary and insights for the future

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