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The Northern Gateway Toll Road

05 Sep 2009

The 2009 Concrete³ Sustainability Supreme Award was taken away by the Northern Gateway Alliance for the Northern Gateway Toll Road, a 7.5km $360 million extension of State Highway One from Orewa and Puhoi, which at the time was New Zealand Transport Agency’s largest ever capital project.

The route passes through a historically rich and diverse landscape containing steep topography, large tracts of native bush, regionally significant and environmentally sensitive streams and estuaries and areas of pastoral farmland. The project included 5 new bridge structures, one widened structure, and twin bore tunnels, consuming 60,000m³ of concrete.

Amongst numerous other features the project achieved top marks in concrete sustainability for the concrete lining in the twin Johnstone’s Hill tunnels, which made extensive use of polypropylene fibres for fire resistance, and its bridge structures, which used timesaving match-cast technology for the first time in New Zealand.

The Northern Gateway Toll Road is a truly significant project and the Alliance behind it demonstrated a genuine commitment to large-scale sustainable construction. All aspects of the project, from design through to operation, have considered ways in which to minimise the carbon footprint and contribute to New Zealand’s sustainable development. The project’s use of concrete for its sustainable properties, in particular durability and fire resistance, is outstanding.

“We are committed to sustainable development in all areas of our organisation and entering the Concrete³ Sustainability Award was a chance to celebrate the good work of those involved in the project. It also provided a strong endorsement of our practices which can be shown to future partners and clients.”

Amanda Harrison, URS spokesperson, Northern Gateway Alliance


Noel Nancekivell of URS NZ Ltd accepts the 2009 Supreme Concrete3 Sustainability Award from from CCANZ CEO Rob Gaimster