When workers are required to enter a trench, shoring is required if the trench is what minimum depth?

When workers are required to enter a trench, shoring is required if the trench is what minimum depth?

• A. 4 feet
• B. 5 feet
• C. 8 feet
• D. 6 feet

Answer: (B)

Entering a trench carries a real danger of wall failure, so protective measures are mandated once the trench reaches a depth where the soil is more likely to cave in. The minimum depth that triggers the requirement for a protective system like shoring is five feet. Shoring supports the trench walls to prevent collapse, protecting anyone working inside. At depths below five feet, the protection rule isn’t triggered by the depth alone (though other hazards or unstable soil can still require precautions). So, five feet is the point at which shoring becomes required as the standard threshold for trench protection.

Entering a trench carries a real danger of wall failure, so protective measures are mandated once the trench reaches a depth where the soil is more likely to cave in. The minimum depth that triggers the requirement for a protective system like shoring is five feet. Shoring supports the trench walls to prevent collapse, protecting anyone working inside. At depths below five feet, the protection rule isn’t triggered by the depth alone (though other hazards or unstable soil can still require precautions). So, five feet is the point at which shoring becomes required as the standard threshold for trench protection.