Water & Wastewater Infrastructure

Keystone Civil delivers water and wastewater infrastructure across metropolitan, regional and remote environments. From new pipelines and supporting infrastructure to upgrades within live networks, we bring the people, knowledge and capability needed to keep complex projects moving.

Our experience covers the full civil construction lifecycle, including early works, pipelines, structures, mechanical and electrical interfaces, testing and commissioning. We work closely with clients, designers, operators and specialist contractors to develop practical construction methodologies around the realities of each site.

Our Capabilities

• Water main construction and renewal
• Sewer main construction and renewal
• Rising mains
• Recycled and raw water pipelines
• Pressure and gravity pipelines
• Pump stations
• Reservoirs, tanks and water storage infrastructure
• Treatment infrastructure
• Pipeline connections and tie-ins
• Valve and chamber construction
• Concrete structures
• Mechanical and electrical interface works
• Trenching, excavation, bedding and backfill
• Trenchless crossings and underbores
• Road and waterway crossings
• Temporary bypass arrangements
• Access roads and hardstands
• Drainage and associated civil works
• Testing and disinfection

Built Around the Project

Water and wastewater projects often mean working around live assets, existing services and tight operational requirements. We plan for these constraints early, considering access, staging, shutdowns, temporary works, environmental controls and commissioning before construction gets underway.

This practical approach helps reduce complexity on site, manage risk and give clients greater certainty around delivery. Where works interface with live networks, our teams coordinate closely with asset owners and operators to maintain continuity of service and minimise disruption to surrounding communities.

It is a considered, collaborative approach built around getting the work done safely, efficiently and with fewer surprises along the way.

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