Huge sinkhole may postpone Sydney's $3.1b M6 tunnel for years.

A sinkhole appeared on West Botany Street in Rockdale on March 1, causing debris to fall onto the M6 stage 1 development.

October 10th 2024.

Huge sinkhole may postpone Sydney's $3.1b M6 tunnel for years.
In March, a massive sinkhole appeared in Sydney's Inner West, causing concerns for a major underground motorway project worth $3.1 billion. The sinkhole, which was 10-metres wide, appeared on West Botany Street in Rockdale and debris fell directly onto the M6 development. This incident has raised questions about the potential delays and setbacks that could affect the project. According to Roads Minister John Graham, the tunnel may not be open until 2027 or 2028.

During a recent interview, Graham acknowledged the possibility of significant delays due to the challenging nature of the work. He stated that while 90% of the project was still manageable, the 244-metre section where the sinkhole emerged was proving to be quite difficult. This unexpected complication has caused concerns and uncertainties about the future of this section of the road.

Graham also mentioned that the delays would have a financial impact on the project, but it was too early to determine the exact cost or who would be responsible for covering it. This news has caused some anxiety among taxpayers, who are worried about the potential burden on their shoulders.

Meanwhile, Camilla Drover, Deputy Secretary of Transport for NSW, revealed that the sinkhole has brought about additional issues for the residents, including the potential relocation of a gas line and water mains. She explained that this was necessary for the safety and well-being of the local community.

Drover also mentioned that there is currently no set timeline for when the tunnelling will resume, but they are hopeful that it will recommence in early 2022. She stated that they are still in the process of evaluating the advice provided by the contractor. Once that is complete, they will move on to the ground stabilisation works before tunnelling can continue.

Originally, the tunnel was expected to be open by 2025, but with these unexpected challenges, the timeline may need to be adjusted. The project team is working diligently to find solutions and overcome these obstacles, with the ultimate goal of providing a safe and efficient motorway for the community.

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