Temporary does not mean unengineered. Event platforms can carry dense crowds, staging, hospitality equipment and temporary structures.
Specify crowd load, barriers, emergency egress, wind on temporary structures, anchoring, gangways, electrical services and bump-in/bump-out conditions. Walcon Marine Australia publicly states it holds more than 3 km of hire pontoon stock for events and construction applications.
What changes for temporary and event pontoons
Temporary structures carry a permanent duty of care. The pontoon may be in the water for a weekend, but it will be loaded by a crowd that has no idea what it is standing on, often at night, often after a drink, and always with someone legally responsible for the outcome.
The other difference is logistics. Deployment, recovery, storage and transport dominate the economics, so the design is driven as much by how it is handled as by how it performs in the water.
Questions to settle before you specify
- What crowd loading applies, and who has confirmed that basis?
- How is the structure deployed and recovered, with what plant, and in what weather window?
- What is the weather abort trigger, and who makes that call during the event?
- How is it restrained at a site with no permanent piling?
- Where is it stored between events, and what does handling damage look like over a season?
What to put in the RFQ
- Crowd loading basis and the maximum permitted occupancy of the structure.
- Deployment and recovery method, plant requirements and crew.
- Restraint system for a temporary installation, with the design conditions.
- Edge protection, lighting and fall prevention for unsupervised public use.
- Inspection checklist to be completed before each deployment.
Where event structures go wrong
- Occupancy is never stated, so nobody can tell when the structure is overloaded.
- Restraint suited to a calm forecast and not to the weather that arrives.
- Modules damaged in transport and deployed without inspection.
- No named person responsible for stopping use when conditions change.
Questions buyers ask
Does a temporary structure need approval?
Temporary does not mean unregulated. Placing a structure in a waterway, and admitting the public to it, both commonly require permission. Confirm requirements with the waterway manager and the local authority well before the event.
Who is responsible if someone is injured?
That depends on the contractual and operational arrangements, which is exactly why they should be written down before the structure goes in the water rather than after an incident.