If your trench is greater than 5 feet deep or with unstable ground, you need a protective system (e.g., sloping, shoring, or shielding).Here’s what you need to know about federal OSHA: Requirements for protective systems –.Scope, application, and definitions applicable to this subpart (Excavations) –.The federal OSHA standards you should refer to include: What are the OSHA Trenching and Excavation Standards?īoth federal and state OSHAs have strict trenching and excavation requirements. Some of the things that weigh a ton: 20 yards of track from the New York City subway system, an adult male moose, a live oak tree, and the Mark 84 bomb.Īs a result: a trench collapse is more likely to result in recovery than a rescue. Most trenches are more than a single cubic yard, so you can imagine the inherent danger of a collapsed trench. A single cubic yard of dirt or soil can weigh around a ton: though it can be more or less depending on the soil type and composition of the area. The sheer weight of the soil, rock, and debris involved is enormous. It’s so prevalent that OSHA has a specific priority goal revolving around trench hazards. Underestimating the risk level associated with digging in, working in, or closing an excavation is incredibly common.
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