Tender and Award for construction to Safety Focused Performance Joint Venture
Beneath the streets of Melbourne, a vast network of pipes and sewers works tirelessly to keep our city safe, healthy and clean. To ensure this crucial system continues to meet the needs of our growing community, Melbourne Water is upgrading the Mordialloc Main Sewer from Chute Street along White Street to Malcolm Road. This vital project will protect our environment and ensure a world-class sewerage system for today and future generations.
Why this is important
The Mordialloc Main Sewer is a 3.5km sewer that uses gravity to transport sewage from South East Water’s Mordialloc catchment area to the South Eastern Trunk Sewer. Constructed in 1937 with reinforced concrete pipes, our regular CCTV inspections have discovered that some sections of the main sewer are coming to the end of their working life. We’re rehabilitating these sewer sections with new structural lines and improved maintenance holes to maintain safe sewage services for the community.
What’s happening
Night works for the Mordialloc Main Sewer upgrade will take place in February and March 2025. To prepare for relining, we'll be removing internal structures from maintenance holes along the sewer line from White Street to Malcolm Road.
Carrying out these works at night will minimise overall disruption for the community.
Work will commence from Sunday 16 February and is expected to take up to three weeks, weather permitting. Night works will occur between 7pm and 5am. Please note that these dates and times are subject to change due to adverse weather or sewer flow conditions.
August 2024
November 2024 to December 2024
Cleaning, scanning, CCTV and maintenance hole modification
February 2025 to late March 2025
Maintenance hole modifications
Early April 2025 to September 2025
Relining of the sewer
October 2025
Rehabilitation
Works began in November 2024 and are expected to be completed by October 2025, 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. Night works are required for some of the relining works when sewage flows and traffic volumes are at their lowest.
During this time you may notice the following impacts:
- 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 EPA 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, bike riders, 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 public 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 re-vegetation and reinstatement plans approved by Council.
When are we working?
Works will be undertaken between:
- Night works: 7pm to 5am, Sunday to Thursday
- Day works: 7am to 6pm, Monday to Friday
- Weekend hours: 8am to 3pm 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: South East Water (131 694).
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]
Post your comments or feedback on Facebook or Twitter.