The safety rules and measures required to protect workers from cave-ins and other hazards when digging.
Excavation safety encompasses the OSHA regulations and engineering controls required to protect workers from cave-in, flooding, hazardous atmospheres, and falling objects during earth-moving operations. OSHA 29 CFR 1926 Subpart P requires protective systems (sloping, shoring, or trench boxes) for all excavations 5 feet or deeper. A competent person must classify soil and inspect the excavation daily.
The competent person classified the soil as Type C and required a pre-manufactured trench box for all excavations deeper than 4 feet.
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