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Trenching and Shoring: Excavation Safety SSC003E (13 Min.)

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1
Trench cave-ins are predictable and preventable.
2
A person buried under only a couple of feet of soil can experience enough pressure to cause suffocation.
3
Training and understanding the trenching and shoring regulations are keys to working safely in trenches.
4
A trench refers to a narrow excavation made below the surface of the ground where the width is greater than the depth.
5
It is not necessary for the competent person to conduct an inspection after every rain storm or other weather event.
6
Trench cave-in fatalities are caused by __________.
7
If a trench is more than _____ feet in depth, there must be a protective system in place while workers are in the excavation.
8
A competent person must classify the soil by using ________ test.
9
Soil is heavy. A cubic foot generally weighs as much as _____ pounds or more.
10
Heavy equipment shall not be used until the utilities are located by hand method