As part of building Hobart’s future sewer network, the Selfs Point Sewer Transformation is progressing well, with key milestones achieved across our major sites.

Selfs Point

• The concrete base for the first digester tank is complete. This tank will safely process sewage sludge using natural bacteria, reducing waste and producing a reusable by-product. Work on the base of the second digester tank is underway, supporting future treatment capacity.
• The general-purpose station has now been installed. This station recycles wastewater created during treatment by returning it to the inlet system for reprocessing, improving efficiency and outcomes for the Derwent.
• The installation of potable water pipework, assembly of large overflow pipes, and placement of electrical conduits and pits to power the facility are ongoing.

Macquarie Point

• The major excavation for the new underground pumping station is complete, with more than 10,000 tonnes of soil removed.
• 30 ground anchors have been installed, securing the structure against ground pressure.

Sewer Pipeline

• Over 1,600 metres of the new 4.3 km sewer pipeline have been laid.
• Along Lower Domain Road, two of three sections are reopened to the public. Works are now underway between Government House and Carriage Drive.
• From early October, the pipeline works will move across the Domain Highway, linking Queens Walk and progressing toward Bell Street and Cornelian Bay Oval. These works will involve a combination of partial and full closures. For more information, click here October 2025 Domain Highway and Queens Walk Closures

Cornelian Bay

• The laydown area has been completed and installed with project hoarding.

Managing Construction Impacts

• We are reducing noise with quieter alarms on our heavy machinery, and sound barriers, and monitoring are in place to reduce disturbance. Most works occur 7 am–6 pm, weekdays.
• Dust is being controlled through soil watering, covered truckloads, crushed rock on haul roads, and enforced speed limits.
• We have installed concrete headwalls and marine silt curtains to prevent sediment from entering the Derwent and protect the waterways.

To view our latest construction video, click here: August 2025 Construction Video

This project is strengthening our sewer network for Hobart’s future growth while improving environmental outcomes and managing community impacts as carefully as possible.