Under what circumstances might dikes be considered confined spaces and, further, when would they be permit spaces?
As a containment structure, the design of a dike will determine whether it falls within the definition of Permit required confined space (PRCS) standard. A dike formed of mounded or sloped earth to a height of 4 to 6 feet would not normally represent a restricted means for entry or exit. Conversely a dike formed of a vertical block or concrete wall of the same height would constitute a restricted means for entry or exit.
The determination of whether a diked area determined to be a confined space would constitute a PRCS would have to be determined based on the hazard(s) present. For example, the potential hazard of engulfment or the potential of a hazardous atmosphere from a heavier-than-air gas or vapor would have to be considered in making the determination.
Source: www.osha.gov
As a containment structure, the design of a dike will determine whether it falls within the definition of Permit required confined space (PRCS) standard. A dike formed of mounded or sloped earth to a height of 4 to 6 feet would not normally represent a restricted means for entry or exit. Conversely a dike formed of a vertical block or concrete wall of the same height would constitute a restricted means for entry or exit.
The determination of whether a diked area determined to be a confined space would constitute a PRCS would have to be determined based on the hazard(s) present. For example, the potential hazard of engulfment or the potential of a hazardous atmosphere from a heavier-than-air gas or vapor would have to be considered in making the determination.
Source: www.osha.gov
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