Excavation & Trenching
3 pieces, each argued from primary sources and each handing you something you can use on Monday.
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The SkepticThe Two Feet Nobody Tapes Off
OSHA's spoil pile setback is one of the only bright-line, tape-measure numbers in excavation safety, and on active sites it gets ignored more often than it gets enforced, both as a falling-material hazard and as an unaccounted-for load on the wall the protective system was sized for.
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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.