CASE Study

Project: 300m DN150mm AC Pressure Sewer Rising Main Rehabilitation

Client Challenge: A critical 300-meter section of a DN150mm Asbestos Cement (AC) pressure sewer rising main was experiencing significant deterioration, posing a risk of leaks and potential service disruptions. Traditional repair methods would have required extensive excavation, leading to significant disruption to local businesses and residents.

Specifically, the client faced:

• The need to cut and lift 300 meters of concrete footpath.
• Disruption to multiple main entrance driveways of local businesses.
• Significant waste disposal and surface restoration costs.

Mullane Trenchless & NuFlow Solution:

Mullane Trenchless PTY Ltd, in partnership with NuFlow Australasia, deployed their advanced trenchless rehabilitation technology to address the client’s challenges. Utilizing a specialized pipe-in-liner system, the team successfully rehabilitated the entire 300-meter section of the pressure sewer rising main in a single day.

Key Benefits & Outcomes:

• Zero Excavation: The project was completed entirely without the need for any excavation, eliminating the associated disruptions and costs.
• Minimal Disruption: Local businesses and residents experienced no interruptions to their daily activities.
• No Waste Disposal: The trenchless method generated no waste requiring disposal, reducing environmental impact.
• No Surface Restoration: The elimination of excavation also eliminated the need for costly and time-consuming surface restoration.
• Rapid Completion: The entire rehabilitation process was completed within a single day, minimizing downtime and service interruptions.  
  
   
• Cost Savings: By avoiding excavation, the client realized significant cost savings related to labor, materials, and restoration.
• Extended Pipeline Lifespan: The rehabilitated pipeline now boasts a significantly extended lifespan, ensuring long-term reliability.

Client Value:

Mullane Trenchless, in collaboration with NuFlow Australasia, provided a swift, efficient, and cost-effective solution that saved the client from significant disruption and expense. This project demonstrates the power of trenchless technology in rehabilitating critical infrastructure with minimal impact on the surrounding environment and community.