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    Safety Tips | Construction

    Safety in the trenches

    May 1, 2011

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    OSHA requires that employees working inside trenches be protected against cave-in injuries. Trenches should be:

    • Sloped down to add stability
    • Cut to create stepped bench grades
    • Supported by a system made with posts, beams, shores, or planking and hydraulic jacks
    • Supported by a trench box

    For additional protection, all materials – including excavated materials – should be at least 2 feet away from the edge, and a safe means of egress must be provided within 25 feet of workers in a trench. OSHA cautions workers never to enter an unprotected trench.

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