Watercare Services
Albany, Auckland
May – August 2016
As part of its ongoing asset maintenance programme, Watercare engaged Cassidy Construction to design and build a new roof for the Pinehill Reservoir on Auckland’s North Shore.
The job involved engineered dismantling and removal of the reservoir’s aging 30m-diameter concrete dome lid, and installation of a robust modern roof featuring a structural steel frame and longrun composite cladding supported by a central concrete column. This task needed to be achieved without damaging the reservoir’s floor or allowing its seven-metre-high walls to collapse inwards, so our in-house engineers designed a safe demolition methodology using temporary internal scaffolding to prevent horizontal forces.
We also carried out major upgrades to pipework and the inlet chambers, including constructing large concrete chambers that house new altitude valve sets to control water levels.
The project required close collaboration with Watercare and specialist subcontractors, and was completed within a tight 10-week schedule so this critical 4500m3 asset could be returned to service as soon as possible.
A very similar upgrade was carried out for the 63-year-old Kowhai Reservoir, also on the North Shore, in 2019.
Watercare Services
Albany, Auckland
May – August 2016
As part of its ongoing asset maintenance programme, Watercare engaged Cassidy Construction to design and build a new roof for the Pinehill Reservoir on Auckland’s North Shore.
The job involved engineered dismantling and removal of the reservoir’s aging 30m-diameter concrete dome lid, and installation of a robust modern roof featuring a structural steel frame and longrun composite cladding supported by a central concrete column. This task needed to be achieved without damaging the reservoir’s floor or allowing its seven-metre-high walls to collapse inwards, so our in-house engineers designed a safe demolition methodology using temporary internal scaffolding to prevent horizontal forces.
We also carried out major upgrades to pipework and the inlet chambers, including constructing large concrete chambers that house new altitude valve sets to control water levels.
The project required close collaboration with Watercare and specialist subcontractors, and was completed within a tight 10-week schedule so this critical 4500m3 asset could be returned to service as soon as possible.
A very similar upgrade was carried out for the 63-year-old Kowhai Reservoir, also on the North Shore, in 2019.