Metropolitan Gas Co v Melbourne Corporation

The Metropolitan Gas Company (the Company) appealed to the High Court of Australia from a decision of the Supreme Court of Victoria. The dispute arose from damage to the Company's gas main, which was intersected by an underground drain constructed by the Melbourne Corporation (the Corporation). The Corporation sought to recover the cost of reinstating the roadway, which the Company had opened to repair its gas main. The Company counterclaimed for the cost of repairing the gas main, alleging nuisance, trespass, or negligence by the Corporation in the construction and maintenance of the drain.

The legal issues before the High Court were whether the Corporation was liable for the damage to the gas main, and if so, on what grounds. Specifically, the Court had to determine if the Corporation's construction or maintenance of the drain constituted negligence, nuisance, or trespass, and whether the onus of proving such wrongdoing had been discharged by the Company. The Court also considered the extent of the statutory powers of both the Corporation to construct drains and the Company to lay gas mains, and how these powers interacted.

The High Court affirmed the decision of the Supreme Court. The Court reasoned that the Corporation, in constructing the drain, was exercising statutory powers. Therefore, its liability for damage to the Company's gas main depended on whether it had acted negligently in the exercise of those powers, causing unnecessary damage. The Court found that the damage was primarily caused by subsidence of the drain, not by vibration from the roadway. Crucially, the trial judge had found, and the High Court agreed, that the Corporation had not been negligent in the design or construction of the drain, as the soil conditions at the time did not suggest a risk of subsidence that a reasonable person would have foreseen or guarded against. Furthermore, the Company had not discharged the onus of proving negligence on the part of the Corporation in the construction or subsequent maintenance of the drain.

Consequently, the appeal was dismissed. The High Court ordered that the appeal be dismissed with costs, upholding the judgment of the Supreme Court of Victoria which had found in favour of the Corporation on its claim and dismissed the Company's counterclaim.