Surface Crossing of Trenches
Surface crossing of trenches should be discouraged; however, if trenches must be crossed, they are only permitted under the following conditions:
- Vehicle crossings must be designed and installed under the supervision of a registered professional engineer.
Crosswalks must have guardrails.
- Walkways or bridges must be provided for foot traffic. These structures must:
- Have a minimum clear width of 20 inches
- Be fitted with standard rails
- Extend a minimum of 24 inches past the surface edge of the trench
Knowledge Check Choose the best answer for the question.
6-3. What is one of the requirements for trench walkways or bridges?
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