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Delivering new sewer and water infrastructure to support future civic development in Batemans Bay.

Eurobodalla Shire Council

Batemans Bay, New South Wales

Sewer Pump Station + Network Infrastructure

[Project Background]

Infrastructure Expansion for a New Residential Community

Eurobodalla Shire Council initiated new water and wastewater infrastructure works to support future development within the Mackay Park precinct, including the construction of the Batemans Bay Exhibition Centre.

The project involved the installation of new gravity sewer pipelines, construction of a sewer pump station, and associated rising main infrastructure to transfer wastewater to the downstream treatment network.

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[Scope Of Works]

Operating in Sensitive and Live environments

Design and construction of sewer and water infrastructure supporting future community development in Batemans Bay.

Construction of a new sewer pump station and associated valve chamber infrastructure

Installation of gravity sewer mains, rising mains, and trunk water infrastructure

Mechanical, electrical, and SCADA system installation and integration

Testing and commissioning of sewer and water network assets

Project Technical Snapshot

Construction of a new sewer pump station and supporting gravity and rising main infrastructure.

3.2m Diameter Wet Well Pump Station

Gravity Sewer Installed

750m DN150–DN300 uPVC Sewer Main

Rising Main Installed

1km HDPE OD225 Sewer Rising Main

[Outcome / Key Features]

Integrated Pump Station and Sewer Network Delivery

Outcome

Construction of a 3.2m diameter sewer pump station wet well
Installation of 750m gravity sewer mains (DN150–DN300) and associated DN1050 manholes
Installation of 1km HDPE OD225 sewer rising main transferring flows to downstream network
Installation of 800m DN450 ductile iron trunk water main upgrading existing infrastructure
Full mechanical, electrical, SCADA and odour control systems integrated within the new pump station

Key Features

8m deep excavation in water-charged sandy ground for pump station wet well construction
Sheet-piled excavation supported by engineered bracing systems
Continuous 24/7 groundwater dewatering operations during construction
Micro-tunnel connection from upstream sewer network into the wet well
Horizontal directional drilling used to install pipelines across constrained corridors
Construction sequencing coordinated alongside Bateman’s Bay Exhibition Centre development
Laser-guided boring implemented to safely cross newly installed underground services

[Environmental Responsibility]

Managing groundwater and excavation impacts during construction

Construction works were undertaken within water-charged sandy ground conditions requiring continuous groundwater management. Controlled dewatering systems and excavation support measures ensured safe construction while protecting surrounding infrastructure and minimising environmental impact.

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Water Infrastructure

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Mackay Park Sewer Augmentation Works

Sewer Pump Station + Network Infrastructure

Infrastructure Expansion for a New Residential Community