Trenching and Shoring

What You Need to Know

• The trench must be inspected by the competent person daily before any my enter.
• Never enter a trench filled with water or if open utilities are showing.
• Competent person requirements: contact the FM Safety Coordinator 949-824-5066 or EHS 949-824-6200.
• Training requirements:
  • Awareness level – offered online or in-person class
  • Competent Person – contact EHS for assistance
• Dig Alert - (811)

Forms

Trenching and Shoring Program
Please contact Jennie Wung at 949-880-4270 or jwung@uci.edu if you have any questions regarding the UCI Trenching and Shoring Program.

• Appendix B: SOP template for regularly scheduled and emergency trenching and shoring activities
• Appendix C: Hazard Assessment and Trench Entry and Authorization Form for regularly scheduled and emergency trenching activities

PPE requirements

• The requirements will vary according to each confined space so please contact EHS for clarification but the basic PPE needs will consist of the following: hard hat, protective boots/shoes, googles/safety glasses, protective clothing, and protective gloves. Additional PPE requirements (entry specific): harness, tripod, respirator.
• Hazardous atmosphere equipment: 4-gas meter, air blower/ventilation.

*Always consult with EHS and/or the competent person for trench-specific PPE requirements*

Considerations

• 4-gas meters are only to be used by trained personnel. Otherwise a representative from EHS must be present to verify gas readings. Meters must be calibrated before use and in current annual calibration requirements.
• All equipment shall be inspected before use to verify it is in good condition.
• Never enter a trench unless cleared by the competent person.
• Traffic control shall be used in area where there is traffic.
• Trench will be benched or shored as required by soil type and depth. (Competent person will make that decision).
• Utilities shall be checked and marked ahead of project by checking with Dig Alert.

Purchasing guidelines

• If you have questions on trench shoring or other equipment, please check with EHS prior to purchase by contacting us at 949-824-6200.