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Upgrading rising main infrastructure and emergency storage capacity to improve wastewater network resilience in Bundanoon.

Wingecarribee Shire Council

Bundanoon, New South Wales

Emergency Storage Tank Installation

[Project Background]

Improving Reliability of the Bundanoon Sewer Network

Wingecarribee Shire Council initiated upgrades to the SPS-MT6 sewer infrastructure to improve network reliability and provide additional emergency storage capacity within the Bundanoon wastewater system.

The project involved replacing the existing DN90 rising main with a larger DN125 pipeline and installing a new emergency storage tank to improve system resilience during peak flow or pump station outages.

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[Scope Of Works]

Operating in Sensitive and Live environments

Construction of upgraded sewer rising main infrastructure and emergency storage systems for Wingecarribee Shire Council.

Installation of approximately 1km DN125 HDPE sewer rising main

Construction of 200kL concrete emergency storage infrastructure

Installation of vent stacks, valve pits, and associated pipework

Open cut and HDD installation works connecting to existing wastewater infrastructure

Project Technical Snapshot

Replacement of existing sewer rising main infrastructure and installation of emergency storage capacity.

1km DN125 HDPE Sewer Rising Main

Emergency Storage Capacity

200kL Concrete Storage Tank

Installation Method

Open Cut Trenching + Horizontal Directional Drilling (HDD)

[Outcome / Key Features]

Delivered Rising Main Replacement and Storage Upgrade

Outcome

Installation of 1km DN125 HDPE sewer rising main pipeline
Construction of 200kL concrete emergency storage tank
Installation of DN150 vent stack with educt fan system
Connection of new infrastructure to existing pump station and treatment plant manholes
Installation of valve pits, manholes and associated mechanical infrastructure

Key Features

Rising main installation delivered using open-cut trenching and HDD methodologies
Construction and installation completed in accordance with WSA and Australian Standards
Hydro-excavation used near sensitive tree protection zones (TPZ) to protect existing vegetation
Sediment and erosion controls implemented to protect nearby waterways during construction
Construction works supported by full testing regime including soil compaction, pressure testing and structural verification

[Environmental Responsibility]

Managing environmental protection during construction

Environmental protection measures were implemented throughout the project including sediment and erosion controls and protection of designated tree protection zones. Hydro-excavation techniques were used in sensitive areas to minimise disturbance to surrounding vegetation and nearby waterways.

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SPS-MT6 Sewer Rising Main Upgrade

Emergency Storage Tank Installation

Improving Reliability of the Bundanoon Sewer Network