Unshored Trench Beside a Public Sidewalk
On a Lincoln mixed-use project, a crew is installing a 7-foot-deep sanitary line along the property line, 6 feet from a sidewalk used by the public. The excavation is 45 feet long, with vertical sides. The soil is moist silty clay; the foreman classified it as Type B but has no documentation. Spoil is piled 18 inches from the edge; a 4-inch water line crosses the trench and is leaking. The competent person is at another site. A worker enters to shovel soil from the bottom; no ladder is within 30 feet. The general contractor's safety director visits and sees the condition. The project has had two recordable injuries this quarter; the owner is a repeat client and wants no delays. The crew says the trench will be backfilled in two hours.
1. Identify the immediate OSHA hazards and the actions the GC should require before anyone re-enters the trench.
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The trench is 7 feet deep, so a protective system is required unless the excavation is entirely in stable rock; Type B soil with vertical sides does not qualify. The spoil pile must be at least 2 feet from the edge, not 18 inches. The leaking water line is a stability hazard and must be controlled or the trench dewatered. A competent person must inspect daily and before entry; the foreman's classification without documentation is not enough. Access must be provided within 25 feet of workers, and the worker at the bottom needs a ladder or ramp. The GC should stop the work, remove workers, barricade the area, and require a written excavation plan, competent-person inspections, and a protective system such as sloping, benching, or shoring designed for the soil and depth. The crew's 'two hours' argument does not override the standard. The GC should also verify the utility locates and the water-line repair before re-entry.
2. How should the GC handle multi-employer responsibility and the owner's no-delay request?
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The GC as controlling employer can be cited even if its own employees are not in the trench, because it controls the site and has authority to correct. The excavation subcontractor has the direct duty, but the GC must exercise reasonable care, including stopping unsafe work, requiring a competent person, and documenting corrections. The owner's no-delay request does not transfer OSHA liability; a delay is preferable to a fatality. The GC should issue a written stop-work order to the sub, hold a stand-down, and not allow the sub to resume until the protective system and access are in place. It should notify the owner in writing that the schedule impact is caused by a safety compliance issue. If the sub refuses, the GC should consider replacing the crew and documenting the decision. The two prior recordables make a repeat citation risk higher, so the safety director should conduct a site audit and retrain the crew.