PUMP STATION CONSTRUCTION & INSTALLATION
SELWYN DISTRICT - PREBBLETON
The project included the design and installation of temporary works and a dewatering system, which enabled the construction of the in-situ reinforced concrete wet well at a depth greater than 6m. All temporary works were completed by in-house staff using the latest in-sheet pile installation technology.
Three pumps and associated valve work were installed within the wet well and connected to the existing reticulation network. The pipework was a combination of stainless steel, PVC, and PE or sizes ranging from 150mm to 375mm in diameter. The pipework connections involved trenching across a busy arterial road to approximately a depth of 4m.
We installed a large standby generator, odour control unit, and SCADA/Electrical Switchboard within an architecturally designed control building. Additional onsite work included the management of the installation of an electrical transformer, landscape works, and the completion of an asphalt concrete accessway and hardstand area.
A large variation (approx. $890K) was awarded to Hunter Civil during the construction of this pump station for the upgrade of 400m of 300mm & 225mm uPVC gravity sewer network ranging in depth from 4m to 1.3m.
DURATION
Jun 19 – Sep 2020
CLIENT
Selwyn District Council
CONSULTANT/DESIGNER
GHD
VALUE
$3,000,000.00
A new wastewater pump station and associated works were completed by Hunter Civil in the fast-developing township of Prebbleton for the Selwyn District Council.
The scope of work involved the construction of a new pump station contract building, reinforced concrete in-situ 6m deep wet well, reinforced concrete valve chamber, and mechanical and electrical equipment installation. Other site work included tree felling, installation of new pipework and site landscaping and fencing.