Tender and Award for construction to Safety Focused Performance Joint Venture
In Melbourne, a safe, clean and healthy environment is essential to our way of life. Through an extensive network of underground pipes and sewers we manage and treat our city's sewage, ensuring the health of our environment, our communities and our families. Without improvements and innovations, that enormous sewerage network would reach capacity and our waste would impact on the health of your environment. That's why, at Melbourne Water, we are upgrading sections of the Mordialloc Main Sewer from Chute Street along White Street to Malcolm Road. Ensuring we maintain our world class sewerage system today, tomorrow and for generations to come.
Why this is important
Mordialloc Main Sewer is a 3.2km gravity sewer that transports sewerage from South East Water’s Mordialloc catchment area to the Southern Eastern Truck Sewer. The sewer was constructed in 1937, and some sections are coming to the end of their working life. To keep providing sewage services to Melbourne, it's important to upgrade and maintain this Sewer Main.
What’s happening
In October 2024, we will begin major construction works to rehabilitate sections of Mordialloc Main Sewer. The rehabilitation of the sewer involves:
- Cleaning, scanning, and relining the sewer by inserting a new plastic sleeve into the existing pipe.
- Constructing temporary and permanent access tracks to maintenance holes.
- Rehabilitating ageing and damaged maintenance holes.
August 2024
October 2024 – December 2024
Cleaning, scanning, CCTV and maintenance hole modification
January 2025 – mid-2025
Relining
Late 2025
Rehabilitation
Works will start October 2024 and take approximately ten months to complete, weather permitting.
What to expect
Construction impacts
To upgrade the sewer, we will use a trenchless technology technique called ‘relining’. This technology allows us to reline the inside of the existing sewer without having to dig trenches, minimising disruptions to residents and businesses.
Below are listed a number of potential impacts that you may notice during major construction works:
- Night works are required for some of the relining works when sewage flows and traffic flows are at their lowest.
- Noise: There will be a short-term increase in noise in the area, but we will do as much as possible to reduce the construction noise. We will monitor noise and dust levels throughout works to ensure they don’t exceed Environmental Performance Agency thresholds.
- Odour: Some odour is expected when carrying out the works due to harmless gases escaping from the maintenance holes when they are opened. We will minimise and localise this as much as possible.
- Traffic, parking, cyclists, and pedestrians: There will be temporary changes to traffic conditions, including lane closures, road closures and parking restrictions. Some work will occur within sports fields, parks and reserves. For your safety, work areas will be fenced, restricting access, while work is being completed. We encourage you to follow all directions and take care around work areas.
- Environment: To safely access maintenance holes, there will be some instances where trees and vegetation need to be trimmed or removed.
We will make every effort to minimise the impact of these works on the local community and the environment.
Reinstatement of affected areas
After the works are completed, we will reinstate areas affected by our work activities, including re-grassing. This will be undertaken in accordance with revegetation and reinstatement plans approved by Council.
When are we working?
Works will be undertaken between:
- Night works: 9 pm to 7 am, Sunday to Thursday
- Day works: 7 am to 6 pm, Monday to Friday
- Weekend hours: 9 am to 3 pm Saturdays (if required)
Thank you for your understanding and patience during these essential works. On occasions, we may need to undertake works out of hours. We will notify you in advance if these works are required. The timings and dates are indicative and subject to change with no prior notice due to weather conditions and fluctuating sewer flows.
Keeping you informed
Prior to and during construction, we'll provide information in several ways:
- door knocking directly impacted businesses and residents
- bulletins/newsletters in the surrounding area
- community information sessions
- social media
- web page updates
We do not anticipate any impacts to your water or sewerage services during the works.
If you experience an issue with your sewerage service, contact your water retailer: Yarra Valley (132 762) or City West Water (132 642).
More information
Your feedback / Contact us
If you have feedback or would like more information about this project, contact us.
Phone: 1800 635 817
Email: [email protected]
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