Daniel Patten
Engineering Manager, McConnell Dowell
Andy used cutting-edge software to design an ‘underground pipe bridge’ through a major landslide. To our knowledge, this solution has never been constructed before and saved over two years of project delays and millions of dollars.
Andy Corbett
Commercial Director, Pipeline & Civil Ltd
Andy has always made time to work with us, often without prior notice. His team listens to what we want to achieve, then works collaboratively to develop innovative and cost effective solutions.
Chris Osborne
Engineering Manager, Downer Group
Andy has been able to bring specific knowledge from previous projects in Auckland, therefore with Andy and his team, we were able to optimise some design elements. By involving Andy O’Sullivan in the early stages of the design they were able to add value to the project.
Francesco Saibene
Project Director, Ghella Abergeldie JV
We have worked with Andy and his team for a number of years now and we keep coming back to them as their approach to geotechnical design is always practical and efficient. They do not shy away from challenging designs and will always go that extra mile to make sure their designs are constructable.
Tim Pervan
Engineering Manager, Heron Construction
Andy O’Sullivan have provided Abergeldie innovative temporary works designs and geotechnical assessments reducing cost and programme on many of our construction projects.
Andy O’Sullivan are easy to work with and quick to respond to our requests.
Alastair Blackler
General Manager, Abergeldie Complex Infrastructure
The Andy O’Sullivan team developed the design for the temporary works as part of the Barber Grove ECI. This included several aspects of geotechnical design from retaining structures to specialist considerations associated with TBM works. The AOS team provided practical and progressive solutions in a demanding geotechnical environment and as a result, the well-considered designs bought real value to the project.
Daniel Crichton
Senior Principal Engineer, Downer Group
Over the past two and a half years, Andy and his team have consistently delivered innovative and efficient design solutions to a wide range of complex, geotechnically related, challenges on the City Rail Link Project.
Nigel McCreight
Engineering Manager, Auckland City Rail Link, Link Alliance
We have worked with Andy and his team through the past two earthwork seasons on a number of challenges that have been encountered within our project. From stabilisation of large cut slopes in challenging ground. The solutions have been realistic, reasonable and constructable and a real ‘value add’ has been having some of our team regularly working out of Andy’s offices in true collaboration.
Phil Millership
Engineering Manager, Fletcher Acciona JV
March Cato have enjoyed working with Andy O’Sullivan. We feel confident that we can pick up the phone at any time and get talking to a team who properly listen and take the time to understand the challenges we’re facing, so they can develop up a site specific, sensible and constructable solution to keep our jobs moving along safely.
Tony Mills
General Manager, March Cato
Andy O Sullivan had a great understanding of the contractors focus to provide a safe and efficient solution for the shaft works on the Saint Marys Bay Project. Their willingness to investigate change and be flexible during the construction phase allowed the project to realise opportunities and achieve a successful outcome.
Grant McLean
Senior Site Executive, McConnell Dowell