SH1 Old North Road

This 1 km project on SH1 north of Whangarei involved widening to provide a southbound passing lane and realignment to address the poor safety record.

A flexible approach
The geotechnically active slopes had resulted in longstanding movement in the road and on-going maintenance issues. The section of road had complex geotechnical foundation conditions that required a flexible and proactive approach to adapt the design to accommodate the complexity as it was revealed during the wall construction.



   

A cultural icon
The project features two panel retaining walls with an Iconic design representing the local short fin eel that was a valued food source of the local iwi and once widespread in the land overlooked by the walls.

 
LocationSH1 Old North Road
ClientNew Zealand Transport Agency (NZTA)
ConsultantNCC Consulting Engineers
ContractorFulton Hogan Ltd
Value $2 million 

Key Services

  • Planning
  • Geotech
  • Roading Design
  • Pavement Design
  • Landscaping
  • Site Supervision
 
 
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