Following a recent incident at a residential construction site where a prefabricated modular scaffold overturned and came to rest on energised overhead powerlines, WorkSafe has issued a Safety Alert to remind persons who erect, maintain, and manage scaffolds about the risks associated with overturning scaffolds.
Some scaffolds are very large and erected to great heights. They can total many tonnes in weight as well as supporting heavy materials, tools and debris. When fitted with containment sheeting the risks are increased in windy weather where the sheeting acts as a wind sail.
We have seen many incidences of collapsing scaffolds where both workers and the general public have sustained serious or even fatal injuries. If a collapsed scaffold makes contact with live powerlines, as in the previously mentioned incident, the risk of electrocution is high.
WorkSafe provides free information and support to employers to learn how to safely manage scaffolding and reduce the risks of collapse or overturning. Key suggestions include –
- At the planning stage, consider what trades will need access to areas where ties will be connected
- Use anti-tamper devices on scaffold ties
- Follow manufacturer, designer or supplier’s instructions for tie methods and spacing. If information is missing or it is not practical to position the ties as shown in the instructions or design, consult a suitably competent engineer to instruct when and where to use scaffold ties
- When incorporating containment sheeting into the scaffold design, a suitably competent engineer needs to approve the scaffold design (including ties). This is to ensure the scaffold and its ties can withstand the introduced loads.
- Develop and maintain an inspection regime of the scaffold
- Provide information, instruction, and training about the risks associated with altering or interfering with a scaffold.
In March 2025 WorkSafe released the updated Industry Standard for Scaffolding – a must read for anyone responsible for identifying and managing scaffolding hazards. The publication includes designing, erecting, inspecting, using, dismantling, or maintaining scaffolds, applies across industries and is an essential reference for keeping worksites safe.
You can also find information and links to helpful scaffold checklists on our OHS Reps Construction & Utilities - useful information and websites page.
Read more: Scaffold overturns and lands on energised powerlines | WorkSafe Victoria