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Urban Utilities has confirmed that no sewage leaked into the river due to the burst, and wastewater services continued without major disruption. The incident occurred in January while workers were attempting to replace a second pipe, involved one of two critical pipes used to transport waste from Brisbane’s south side to the Luggage Point Resource Recovery Centre. Temporary measures were quickly implemented to contain the waste within an underground tunnel system.

Temporary Bypass to Begin Soon

Construction of a temporary kilometre-long pipeline between Hamilton and Bulimba will start by the end of September. This bypass will divert sewage, allowing workers safe access to the damaged pipes and tunnel, which spans about 600 metres. 

Urban Utilities expects the temporary pipe to be operational by early next year, at which point repairs on the main system will begin in earnest. 

Urban Utilities’ chief executive Paul Arnold explained that the damaged siphon, a crucial part of Brisbane’s infrastructure, has been in place for over 70 years and has now reached the end of its service life. Replacing this siphon will ensure the system remains functional for the next several decades, meeting the needs of Brisbane’s growing population.

River Traffic and Safety Measures

Certain sections of the Brisbane River will be restricted during the works. Buoys will mark off areas where boats must reduce speed. A barge will begin the pipe-laying process near Hamilton’s Bretts Wharf Ferry Terminal, crossing the river diagonally towards Bulimba. 

While the barge is in operation, Urban Utilities is working closely with RiverCity Ferries, Maritime Safety Queensland, and Brisbane City Council to minimise disruption to river users and maintain normal ferry services as much as possible. Specialist divers will also be deployed to manage the underwater elements of the project.

Timeline for Completion Uncertain

Despite the efforts to set up the bypass, Urban Utilities has not yet provided a completion date for the overall repairs. Once the temporary pipeline is fully operational, workers will assess the damaged pipes and the underground tunnel before determining the full scope of repairs. A company spokesperson explained that the situation’s complexity makes it difficult to provide a precise timeline.

Cr Lucy Collier for Morningside Ward stated that this project is a vital upgrade for the area, ensuring that infrastructure can keep pace with the community’s growth. She voiced strong support for the necessary repairs, recognising the importance of maintaining essential services such as the Bulimba-Hamilton siphon.

The siphon currently serves around 150,000 residents by transporting their wastewater to treatment facilities. The upcoming replacement of the pipes will help secure Brisbane’s infrastructure needs for the next 70 to 100 years. 

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With the growing demands on the city’s resources, Urban Utilities is committed to ensuring that the sewage system remains robust and reliable in the face of increased pressure.

Published 20-Sept-2024

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