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Extending Tamworth’s water and wastewater networks to service the Arcadia residential development and support future regional growth.

Tamworth Regional Council

Tamworth, New South Wales

[Project Background]

Infrastructure Expansion for a New Residential Community

The Arcadia residential development in Tamworth required the extension of the existing water and sewer networks to support future population growth. Tamworth Regional Council initiated the project to deliver new trunk infrastructure connecting the development precinct to the town’s existing utility systems.

[Scope Of Works]

Operating in Sensitive and Live environments

Construction of new supply infrastructure improving water pressure, emergency flows, and network resilience across West Wyalong.

Installation of gravity sewer pipelines ranging from DN300 to DN450

Construction of precast sewer maintenance holes and associated structures

Microtunnelling beneath active rail infrastructure using welded steel casing pipes

Installation and commissioning of trunk water and wastewater infrastructure

Project Technical Snapshot

Construction of new trunk water and sewer infrastructure connecting the Arcadia development to the existing Tamworth utility networks.

1.45km

Gravity Sewer Installed

1.28km Sewer Pipeline (DN300–DN450)

Manholes Constructed

14 Precast Sewer Manholes

[Outcome / Key Features]

Integrated Water and Wastewater Infrastructure Delivery

Outcome

Installation of 1.45km ductile iron cement-lined (DICL) water main
Construction of 1.28km gravity sewer pipeline across multiple diameters (DN300–DN450)
Installation of 14 precast sewer manholes with cast-in-situ bases
Network integration through connections to the existing Tamworth Regional Council infrastructure
Testing, commissioning and system verification including CCTV inspection and hydrostatic testing

Key Features

Micro-tunnelling installation beneath an active railway corridor using DN750 steel casing and DN450 PP carrier pipe
Installation of pipelines beneath high-voltage underground power infrastructure with protective concrete slab separation
Open-cut installation across road corridors with RMS-compliant reinstatement works
Construction of sewer pipelines at minimal grades to optimise gravity flow performance
Coordinated delivery within live infrastructure corridors including rail, power, and road assets

[Environmental Responsibility]

Managing construction within sensitive infrastructure corridors

Construction works were delivered within active infrastructure corridors including rail, road, and underground power networks. Environmental and safety controls were implemented throughout the project to manage excavation works, protect surrounding assets, and ensure safe delivery of the new infrastructure.

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Tamworth Regional Council – Arcadia Lead-in Trunk Sewermains

Tamworth, New South Wales

Infrastructure Expansion for a New Residential Community