Project Spotlight: Newman Water Treatment Plant – Interim Tanks Construction

17/12/2025

Project Duration: Jan 2024 – Jun 2025

Location: Pilbara Region, WA 

Project Overview

Downer was engaged to supply and install a new interim drinking water storage facility for a client in regional WA.

The scope of works included:

• Construction of three new interim drinking water tanks
• Tank pad earthworks construction
• Ring beams and footings
• Installation of a new transfer pump station
• Pipework and high-voltage power supply
• Electrical and instrumentation & control (I&C) systems

Approach

• Downer worked closely with the client for improved constructability. Managing access routes, main road traffic and tie-in configurations reduced interface risks and enabled smoother, faster installation.
• Key locations originally specified for HDPE piping were upgraded to stainless steel. This change accelerated installation, reduced long lead times, and extended the design life of the infrastructure. 
• By identifying critical path activities early, Downer sequenced works to allow early commencement of key installations. This proactive planning minimised schedule impacts from scope changes and ensured timely project delivery.
• Digital project management and monitoring tools provided real-time updates, improving coordination and transparency for both the client and project team.
• Downer engaged several trusted subcontractors and business partners to support the achievement of target milestones.

The outcome:

• Mitigating the critical risk of water supply interruption
• Improved constructability and installation efficiency through engaging a skilled team
• Increased long-term asset reliability through material upgrades
• Enhanced project transparency and coordination for progress reporting

This project highlights Downer’s capability to deliver high-value water infrastructure solutions for its clients in Western Australia while maintaining safety, quality, and operational continuity.