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Trenching and Shoring
- Before digging, check the site for potential underground hazards including electrical conduits, waterlines, gas lines etc.
- A Trenching and Shoring Trained Competent Person is required to approve shoring operations.
- Make sure adequate barriers (i.e. guardrails, covers, and barricades) are provided at all excavations, trenches, pits and holes.
- Always construct the shoring system strong enough to withstand any probable weather condition.
- Re-inspect the excavation site and shoring after each weather change.
- Always employ a shoring or benching system in trenches and excavation deeper than 5 feet
- Before excavating, determine the locations of existing underground utilities by calling Underground Services Alert at (800) 422-4133. They require 48-hour notice, unless it is an emergency.
- Before entering a confined space, make sure the air in the space is tested for dangerous gases and oxygen levels.
- Always place ladders extending 3′ above the trench at 25-foot intervals in any trench 4 feet in depth or greater.
- Make sure spoil pile is 2′ back from edge of all excavations.
- Do not remove shoring until all employees are clear of cave-in hazards.