Lismore City Council has delivered a critical infrastructure upgrade of approximately 1,732 metres of ageing cast iron water pipes, securing the CBD's water supply for the next 100 years.

The substantial $3.4 million investment involved installing a modern, fully welded polyethylene system that ensures the long-term reliability and sustainability of the city’s water supply.

The project to maximise the life of critical city infrastructure ensures a secure, dependable water supply for residents and businesses alike.

Lismore Mayor Steve Krieg highlighted the project's importance, highlighting its role in strengthening our city’s water services for the next generation.

"The project focused on replacing the original cast iron pipes, which had reached the end of their useful life,” he said.

“Replacing century-old pipes with modern materials was a balancing act to minimise service interruptions and maximise the life of this important asset.”

“This complex project involved innovative methods to ensure minimal impact on businesses and locals in the CBD, and I’m proud of what we’ve achieved.”

The transition to a polyethylene system will increase durability, safety, and efficiency, reflecting the Council’s commitment to a more robust water infrastructure.

To minimise disruption to the community during the works, Council used horizontal directional drilling to complete the installation.

This advanced technique allowed for faster and cost-effective installation, with less excavation than traditional open-cut methods.

Following the installation, all new water mains passed rigorous pressure testing, verified by NATA-accredited assessors, and were confirmed to meet Australian drinking water standards through thorough bacterial and chemical testing.

Polyethylene pipes are highly reliable, low-cost, and maintenance-free, with lifespans exceeding 100 years, as supported by the WSAA Polyethylene Pipeline Code.

This project is crucial to Council’s Capital Works Water Pipelines initiatives, highlighting our dedication to responsibly upholding vital services.