Gas Pipeline Utility Strike in Tasmania

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A sudden explosion in Tasmania instantly killed 3 people. 

Actions Taken to mitigate these problems in the future have been implementation of CPD Continued Professional Development Points system for Accredited locators in construction within Tasmania.

This case study explores a critical incident that could have occurred on Donut Park Road, where a gas pipeline, compromised by unauthorized drilling activities, posed a severe risk to public safety.

The situation underscores the essential need for stringent compliance with "Before You Dig" procedures to prevent utility strikes, which can lead to catastrophic outcomes.

Through this analysis, we aim to highlight the consequences of neglecting utility checks before excavation and advocate for heightened awareness and adherence to safety protocols.


In July, during a bustling lunch hour at Donut Park Road, an imaginable scenario unfolded—a massive explosion from a gas pipeline created an eight-meter crater, resulting in fatalities and injuries.

This fictional event serves as a stark reminder of the dangers lurking beneath urban spaces due to compromised utility infrastructure.

Hobart faced an emergency scenario with gas supplies cut off during a harsh winter, alluding to the severe implications of such an incident on community welfare and safety.


The Hobart steel pipeline, operational since 2005 and stretching 24 kilometers from Bridgewater to Newtown, is the sole gas supply line to the greater Hobart area. In 2017, significant damage was detected in the pipeline beneath Derwin Park Road, putting the area at risk of a devastating explosion.

Unauthorized horizontal drilling for a sewer main in 2006 compromised the pipeline's integrity, reducing the pipe wall thickness below safe levels. This negligence left the local community unknowingly at risk for over a decade.


The incident highlights a failure to adhere to "Before You Dig" protocols, which could have easily identified the gas pipeline and prevented the unauthorized drilling.

The lack of due diligence in this case points to a broader issue of compliance and enforcement in construction and utility management practices. 

The potential disaster was averted, but the incident left a significant impact, including a costly repair bill and a week-long disruption of a major arterial route.

Lessons Learned

Importance of Compliance: Adhering to "Before You Dig" inquiries is non-negotiable. This protocol serves as the first line of defense against utility strikes, which can have fatal outcomes.

Awareness and Education: Increasing awareness about the existence of utility infrastructures underground and the potential risks associated with excavation work is crucial.

Strengthening Regulations: There is a need for stricter regulations and penalties for non-compliance with safety protocols to prevent utility damages.

Community Safety: This scenario underscores the importance of safeguarding community safety through diligent planning and adherence to excavation guidelines.


The near-miss at Donut Park Road serves as a powerful reminder of the consequences of neglecting underground utility checks before excavation. It illustrates the need for heightened awareness, education, and adherence to "Before You Dig" procedures to prevent such incidents.

By learning from this close call, communities and industries can work together to ensure safer excavation practices, ultimately protecting lives and infrastructure. 

This case study advocates for a culture of safety and compliance, emphasizing that such incidents are preventable with the right precautions and respect for underground utilities.

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