Topic
Excavation & Trenching
2 pieces, each argued from primary sources and each handing you something you can use on Monday.
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The Floor WalkerThe trench that was safe yesterday
Cave-in protection is not the trench box in your yard; it is today's competent-person inspection matching the protective system to the soil as it actually is right now.
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The Floor WalkerNobody who signs the lift plan owns the ground
OSHA puts ground conditions on the controlling entity, so a lift checklist that has the crane crew tick off ground bearing capacity is collecting a signature from the one party that cannot fix, and usually cannot see, the thing most likely to drop the crane.