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Maioro Street Interchange Stage 1

Client: NZTA
Location: Mt Roskill, Auckland

This project was awarded as winter works enabling contract for the interchange stage 2 works. The works included significant ground improvement works, large culvert structures and Watercare sewer relocation. The works were constructed within private industrial land and adjacent to the Oakley creek, including rock blasting. Significant stream diversion works were carried out and we managed to carry out the works in winter without any environmental incidents. The works were carried out with the least amount of disruption to the existing businesses.

Project Scope:
  • Ground improvement works – cut to waste 55,000m3, imported crushed concrete fill of 65,000m3, wick drainage.
  • Drainage – Watercare sewer diversion of 525 dia pipe and 400m of 3m dia pipe culvert, 200m of 1.6m dia pipe culvert and twin pipe outlet structure.