ACCIONA as part of the Northern Express Group is responsible for the design and construction, finance and maintenance of the 18.5 km highway from Puhoi to Warkworth. The highway starts from Johnstones Hill tunnel, and ends in the north of Warkworth, New Zealand.
Location: Warkworth, NZ
Our Role: Design, Construct, Finance, and Maintenance
Infrastructure: Design and construction of 18.5km highway
Project Value: AU $676million
Estimated Completion Date: late 2021
Maintenance Period: 25 years
The building of the motorway involves design and construction of the 18.5km road from Puhoi to Warkworth, consisting of four lanes from the Johnstone Hills tunnels to the north of Warkworth, which will be the first section of the Ara Tuhono.
NX2 proposal complies with NZTA’s design, constructions and operational outcomes
Improved safety for the new highway with our new Operating Speed design, which is designed to ensure on average each vehicle is travelling at its maximum performance, exclusive of stops and traffic conditions
Predictable journey’s will be established through constructing grade-separated infrastructure, while using SIDRA traffic modelling to determine volume caps for traffic movement using micro simulation
The Transport Agency is a primary key Stakeholder, meeting P2Wk’s consenting and regulatory requirements through the Urban and Landscape Design Framework, including the involvement of stakeholders and communities through the Urban Design and Landscape Sector Plan process
Optimized pavement through optioneering by minimal expense on maintenance through pavement resurfacing and rehabilitation which will contribute to a high quality asset
Enhanced safety and motorway resilience
Supports economic and population growth
More reliable travel times through the construction of grade-separated infrastructure
Improved freight connection for Northland to the Upper North Island freight triangle (Auckland, Waikato and Tauranga)
The requirements of the Urban and Landscape Design Framework integrates in the sensitive landscape, minimizing the impact on the Kauri forest alongside its native species of flora and fauna
The southern section of heritage significance for Hokai Nuku and this has been considered in the alignment and conception of the Okahu and Puhoi Viaducts
The project reached Financial Close in early November. The Northern Express Group will now finalise its detailed design and procurement and begin site establishment works along the corridor in 2017.
Between financial close in November 2016 to October 2017, detailed design will take place and early works including clearing and grubbing. With bulk earthworks to commence next season between October 2017 to May 2018.