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OSHA requires employers to provide ladders, steps, ramps, or other safe means of egress for workers working in trench excavations 4 feet (1.22 meters) or deeper. The means of egress must be located so as not to require workers to travel more than 25 feet (7.62 meters) laterally within the trench.
What are the safety standards for excavation?
Keep excavated soil (spoils) and other materials at least 2 feet (0.6 meters) from trench edges. Know where underground utilities are located before digging. Test for atmospheric hazards such as low oxygen, hazardous fumes and toxic gases when 4 feet deep. Inspect trenches at the start of each shift.
What is the 5 rule of excavation?
The 5-foot rule in excavation is a safety practice that states that unless the pit is made entirely in stable rock, trenches 5 feet deep or greater require the use of a protective system. If, however, the excavation is under 5 feet, a competent person may decide whether a protective system is necessary or not.
What are the safety guidelines for excavation?
Key points Avoid underground services and make sure not to undermine nearby structures use safe digging practice and dig away from them. Check the excavation each day before starting work and after any event that may affect its stability. Provide safe access to get in and out.
What is the slope ratio for excavation?
All simple slope excavation 20 feet or less in depth shall have a maximum allowable slope of :1. Exception: Simple slope excavations which are open 24 hours or less (short term) and which are 12 feet or less in depth shall have a maximum allowable slope of :1.
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