The utility’s microtunnel boring machine (MTBM), Sewey, has completed its journey two years after it began work on the AU$55 million Bulimba Creek Stage 2 Sewer Upgrade which will carry wastewater to the Gibson Island Sewage Treatment Plant.
On 12 November, the MTBM made the breakthrough into Settlers Street Park at Carindale, marking the end of tunnelling for the Bulimba CreekSewer Upgrade.
Following this, a 22 m sewer pipe supplied by RPC made of glass reinforced plastic was successfully lifted and lowered into a 25 m deep shaft in Carindale for a maintenance hole on the sewer line.
Queensland Urban Utilities Project Manager Will Campbell said reaching breakthrough was a significant milestone for the project.
“After months of chewing her way through hard rock, Sewey emerged without the colourful design created by Easts Mt Gravatt Junior Rugby League Club member Caitlin Gamble,” he said.
“Most importantly though, she completed her mission.
“The new trunk sewer from Carindale to Mansfield will meet the needs of future growth in southeast Brisbane until 2050 and cater for an additional 271,000 people.”
During the project, 4.25 km of new sewer main was installed, with the majority using modern trenchless technology.
“As it’s a gravity trunk sewer, we’ve been working at depths of up to 50 m below ground, so using modern technology was paramount to reduce the impact on the wider community and environment,” said Mr Campbell.
“We thank residents for their patience while we’ve constructed this essential infrastructure, which enhances the liveability of our communities.”
Weather permitting, final works are expected to be finished by March 2019.
For more information visit the Queensland Urban Utilities website.
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