Projects | Civil Engineering Grafton Gully Bridge

Award-winning cycle bridge at Auckland University.
This bridge was designed to be an aesthetically interesting centrepiece to the cycleway project through Grafton Gully. Spanning a 20m gully with a 4m North-South fall, the bridge was developed as an ā€˜Sā€™ Bend design with a constant fall of 10 degrees.

Key Features:

  • This project won the 2015 Steel Construction NZ "Excellence in Steel Construction" award for projects under $500,000.
  • Design considerations included craneage weight, fabrication methodology, constant fall and precast deck mould design.
  • Main beam fully fabricated from CNC cut 16 & 20mm plate.
  • Sections fabricated and pre-assembled in our workshop. 
  • Metal arc zinc sprayed and vinyl coated at Counties Industrial Coatings in Pukekohe and assembled on-site in situ.

Challenges: 

  • Access for craneage was particularly tight for the 300T road crane and great care was taken to maintain safe lifting capacity and radius within section size and weight.
  • Particular care was required to avoid damage to any trees on site as the crane was located against the drip line of a protected oak.


Responsive
Lead-time

Responsive
Lead-time

Skilled
People

Skilled
People

Integrated Design
Capability

Integrated Design
Capability

Scale &
Capacity

Scale & Capacity

New Zealand
Owned And Operated

New Zealand
Owned And Operated

Quality
Assured

Quality
Assured

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