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Trench box safety ladder.
Letter 20071211 8130 re.
We have found that in certain circumstances having a ladder in a trench box makes it difficult to provide our employees with enough room to work safely while installing underground drain sewer and water pipes.
Trench boxes must extend eighteen.
Various embodiments of the present invention relate to trench box safety ladders and methods of constructing trench boxes with safety ladders.
The occupational safety and health administration requires that a trench box must be used for all trenching or excavations five feet or greater in depth.
Trench boxes fortify a trench against unstable soil resulting from tension cracks sliding bulging and heaving.
Removing ladders during trenching activities.
In one embodiment a trench box comprises two side walls with a plurality of supports between the two walls a built in ladder within the inner face of a side wall and an extension ladder positioned on the top face of the side wall.
Keep heavy equipment away from trench.
These devices must be located within 25 feet 7 6 meters of all workers.
Various embodiments of the present invention relate to trench box safety ladders and methods of constructing trench boxes with safety ladders.
We would like to institute the following alternative procedure.
Details of osha trench box requirements.
Osha requires safe access and egress to all excavations including ladders steps ramps or other safe means of exit for employees working in trench excavations 4 feet 1 22 meters or deeper.
Compliance with 29 cfr 1926 651 c 2 question.