MAD-Trenching Checklist

• Document No.

• Audit Title

• Client / Site

• Conducted on

  Date

• Prepared by

• Location
  Address

• Personnel

ENCUMBRANCES

• Have all utilities been located prior to beginning trenching operations?

  Yes

  No

• STOP. Do not proceed under Miss Utility has located all utilities. Contact Miss Utility by calling 811.

• Are adjacent structures stabilized to prevent collapse?

  Yes

  No

  N/A

• Add media

  Media

• STOP trenching operation immediately. Inform foreman and Division Safety Manager.

• Are other surface encumbrance stabilized and identified?

  Yes

  No

  N/A

• Add media

  Media

• STOP trenching operation immediately. Inform foreman and Division Safety Manager.

SOIL TESTING

• Has a VISUAL test been performed or will test be performed to classify the soil type?

  Yes

  No

• What type(s) of test?

  Select 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.

  • 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.

• STOP. At least one visual and one manual test is required to be documented.

• Has a MANUAL test been performed or will test be performed to classify the soil type?

  Yes

  No

• What type(s) of test?

  Select Plasticity Dry Strength Thumb Penetration Penetrometer/Shear Vane Drying Test

  • Plasticity
  • Dry Strength
  • Thumb Penetration
  • Penetrometer/Shear Vane
  • Drying Test

• STOP. At least one visual and one manual test is required to be documented.

• What is the soil classification?

  Stable Rock

  Type A

  Type B

  Type C

EMPLOYEE PROTECTION

• Are all spoils and equipment kept at least 2' from the edge of the trench?

  Yes

  No

• Add media

  Media

• STOP trenching operation and inform foreman. Do not continue until materials or equipment are moved back.

• Is the trench more than 4' deep?

  Yes

  No

• A means of egress must be provided a maximum of one every 25'. What type(s) of egress are available?

  Select Ladder Ramp

  • Ladder
  • Ramp

• Is the trench 5' deep or more but less than 20' deep? NOTE: For trenches deeper than 20', protective systems must be designed by a registered professional engineer.

  Yes

  No

• 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.

  Trench Box

  Shore

  Slope

  Rock (N/A)

• Are employees protected from cave-in hazards when entering or exiting the trench box

  Yes

  No

• Add media

  Media

• STOP trenching operation. Inform foreman and establish proper means of egress from trench box.

• Is the distance between the bottom of the trench box and the bottom of the trench no more than 18"?

  Yes

  No

• Add media

  Media

• STOP trenching operation. Inform foreman and make necessary adjustments prior to continuing work.

• Timber or Aluminum Hydraulic Shoring?

  Timber

  Aluminum Hydraulic

• Add media

  Media

• Ensure installation is compliant with 29 CFR 1926.650 Appendix C.

• Add media

  Media

• Ensure installation is compliant with 29 CFR 1926.650 Appendix D.

• Add media

  Media

• 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?

  Yes

  No

• IF the operator does not have a clear and direct view of the edge, is a warning system in place?

  Yes

  No

  N/A

• Select Barricades Hand/Arm Signals Stop Logs

  • Barricades
  • Hand/Arm Signals
  • Stop Logs

• 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?

  Yes

  No

• Add media

  Media

• STOP trenching operation. Inform foreman and Division Safety Manager.

GENERAL

• Is there a competent person present to oversee trenching operations?

  Yes

  No

• Name of competent person?

• STOP. Work is not allowed without a competent person present.

• Are trench inspections documented?

  Yes

  No

• Provide excavation checklist to foreman.

• How many times per day?

  1

  2

  3

  4

  5+