Weather Stops
Weather conditions exceeding the limits discussed below can result in injury or property damage when performing a lift and crane operations should stop.
Know when to stop crane operations.
The crane operator and boat captain are the persons who decide whether to make a lift.
Follow these general guidelines for Stops for Crane Operations:
- When stopping crane operations, a Stop Work Authority (SWA) should be used if the situation is deemed unsafe to proceed due to changing conditions.
- Crane operations should stop even if everyone has agreed that they may proceed.
Crane Operations should be stopped under the conditions shown in the following table.
| Weather and Sea Conditions that Stop Crane Operations | Operations Stopped |
|---|---|
| Seas meet or exceed 12 feet | Dynamic Crane Operations |
| Winds meet or exceed 35 mph | Crane Operations, Static & Dynamic |
| Lightning in the vicinity | Crane Operations, Static & Dynamic |
Knowledge Check Choose the best answer for the question.
4-4. When stopping crane operations, what should be done if it is considered unsafe to proceed due to changing weather conditions?
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