Mansfield v Great Lakes Council

The appeal concerned a motor vehicle accident where the appellant, Mr. Mansfield, suffered injuries when his vehicle left the road and entered a culvert. Mr. Mansfield alleged that the respondent, Great Lakes Council, was negligent in its maintenance of the road and culvert, and in failing to provide adequate signage warning of the hazard. The case was heard in the Court of Appeal of New South Wales.

The central legal issues before the Court of Appeal were whether the Council had breached its duty of care to Mr. Mansfield. Specifically, the court had to consider whether the Council's failure to exercise its statutory power to carry out roadworks was "manifestly unreasonable" under section 43A of the *Civil Liability Act 2002* (NSW), and whether the Council had "actual knowledge" of the risk that materialised, as required by section 45 of the same Act, to overcome any immunity for non-feasance. The court also had to determine the issue of causation, namely whether the absence of specific signage, such as a warning of the culvert's narrowness or weight limitations, would have prevented the accident.

The Court of Appeal found that the Council was not liable. Applying section 43A, the court determined that the Council's inaction in relation to the road and culvert was not "manifestly unreasonable." Furthermore, the court held that the Council did not have the requisite "actual knowledge" of the specific risk that materialised, which was a prerequisite for establishing liability under section 45. The court also concluded that even if appropriate signage had been present, it would not have prevented the accident, thus failing the causation test.

Consequently, the Court of Appeal dismissed the appeal against the District Court's judgment, ordered that the appellant pay the respondent's costs, and also dismissed the cross-appeal.