Information
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Document No.
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Audit Title
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Client / Site
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Conducted on
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Prepared by
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Location
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Personnel
ENCUMBRANCES
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Have all utilities been located prior to beginning trenching operations?
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STOP. Do not proceed under Miss Utility has located all utilities. Contact Miss Utility by calling 811.
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Are adjacent structures stabilized to prevent collapse?
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Add media
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STOP trenching operation immediately. Inform foreman and Division Safety Manager.
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Are other surface encumbrance stabilized and identified?
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Add media
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STOP trenching operation immediately. Inform foreman and Division Safety Manager.
SOIL TESTING
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Has a VISUAL test been performed or will test be performed to classify the soil type?
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What type(s) of test?
- Estimated Particle Size
- Estimated cohesiveness
- Checked sides for cracks
- Identified adjacent previously disturbed soils
- Identified layered systems
- Checked for evidence of surface water, water seeping from sides, location of water table
- Observed adjacent area and excavation for sources of vibration.
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STOP. At least one visual and one manual test is required to be documented.
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Has a MANUAL test been performed or will test be performed to classify the soil type?
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What type(s) of test?
- Plasticity
- Dry Strength
- Thumb Penetration
- Penetrometer/Shear Vane
- Drying Test
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STOP. At least one visual and one manual test is required to be documented.
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What is the soil classification?
EMPLOYEE PROTECTION
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Are all spoils and equipment kept at least 2' from the edge of the trench?
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Add media
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STOP trenching operation and inform foreman. Do not continue until materials or equipment are moved back.
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Is the trench more than 4' deep?
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A means of egress must be provided a maximum of one every 25'. What type(s) of egress are available?
- Ladder
- Ramp
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Is the trench 4' deep or more but less than 20' deep? NOTE: For trenches deeper than 20', protective systems must be designed by a registered professional engineer.
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What type of protective system is being used? NOTE: iIf no protective system is being used, STOP operation immediately, inform foreman and Division Safety Manager.
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Are employees protected from cave-in hazards when entering or exiting the trench box
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Add media
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STOP trenching operation. Inform foreman and establish proper means of egress from trench box.
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Is the distance between the bottom of the trench box and the bottom of the trench no more than 18"?
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Add media
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STOP trenching operation. Inform foreman and make necessary adjustments prior to continuing work.
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Timber or Aluminum Hydraulic Shoring?
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Add media
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Ensure installation is compliant with 29 CFR 1926.650 Appendix C.
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Add media
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Ensure installation is compliant with 29 CFR 1926.650 Appendix D.
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Add media
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Ensure sloping angles are consistent with 29 CFR 1926.650 Appendix B.
Type A: .75:1 (53 degrees)
Type B: 1:1 (45 degrees)
Type C: 1.5:1 (34 degrees) -
Is the trench exposed to vehicular traffic or mobile equipment?
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IF the operator does not have a clear and direct view of the edge, is a warning system in place?
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- Barricades
- Hand/Arm Signals
- Stop Logs
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Is the trench free of operations which would make it a permit required confined space such as hazardous equipment, toxic chemicals in the work processes, exposure to nearby roads?
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Add media
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STOP trenching operation. Inform foreman and Division Safety Manager.
GENERAL
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Is there a competent person present to oversee trenching operations?
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Name of competent person?
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STOP. Work is not allowed without a competent person present.
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Are trench inspections documented?
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Provide excavation checklist to foreman.
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How many times per day?