Found a stat about crane tipping that got me thinking...

I was reading through some OSHA reports last night and found out that almost 40% of crane accidents happen during setup, not while lifting. That surprised me because everyone always talks about load charts and wind limits. On one hand, you can be the smoothest operator in the world, but if your outriggers aren't set right on the ground, you're asking for trouble. On the other hand, some guys swear by quick setups and say experience makes up for it. Which side do you lean on for overnight jobs where the ground shifts?

2 comments

2 Comments

nancy8249d ago

68% of the load chart incidents I've seen in the field came from operators who skipped re-leveling after a rain or freeze-thaw cycle. For overnight jobs, I always do a full setup check at dawn before the first lift, even if it means waking the crew up 20 minutes early. The ground under the mats can settle an inch or more with moisture changes, and that's enough to throw your level bubble off. I've seen a 60-tonner tip on its side because a guy trusted his initial setup from 10pm the night before. Quick setups are fine for short lifts, but if you're leaving a crane parked overnight you need to treat the ground like it's never been tested.

harperschmidt9d ago

Nancy's got a point about the ground settling, but that 68% number feels a little off. I remember a study from the Crane Institute of America that put incidents from setup errors closer to 45% when you separate out weather related stuff. Maybe she's talking about a specific region or company, but that stat doesn't match what I've seen in the field. Still, the core message about rechecking ground after rain is solid, no argument there. Just don't let that number stick in your head like it's gospel.