St Marys Bay and Masefield Beach Water Quality Improvement Project

CLIENT

Auckland Council Healthy Waters

SECTORS

Three Waters, marine, underground and tunnelling  

ROLE

Advice on constructability and procurement. Budget setting and tender evaluation.  
Engineers Representative and Assistant/Quantity Surveyor.

The project is part of the  Western Isthmus Water Quality Improvement Programme. A new storage pipeline was constructed to store combined stormwater and wastewater that would otherwise flow into St Marys Bay and Masefield Beach.

The work consisted of:
An underground pipeline 1800dia 2km long installed by tunnelling
A new 450m long ocean outfall
A pump station, three large shafts to facilitate the tunnelling
A utility installation via trenching up to 7m deep on Curran and Sarsfield streets.
Spiral wound lining of 1500mm dia
Brick pipeline 110m long.

We provided expert advice on constructability and procurement models prior to construction.

During construction works we were Engineers Representative’s Assistant and Quantity Surveyor.   

Advice was also provided on commercial matters and we assisted with variation negotiations.

Construction monitoring was also carried out, which included  health and safety, quality, and programme.
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