1 The excavation is less than 7-1/2 feet (2.5 meters) deep or is benched for at least 2 feet (.61 meters) horizontally for every 5 feet (1.52 meters) or less of vertical height;  The bottom of the excavation, from the excavation face to the formwork or wall, is at least 2 feet (.61 meters) wide, and wider if possible;
The definition of a detriment is  something that can cause damage, injury or harm. An example of a detriment to your health is not eating healthy foods.
1.Damage, detriment, harm, mischief refer to injuries of various kinds. Damage is the kind of injury or the effect of injury that directly impairs appearance, value, usefulness, soundness, etc.: Fire causes damage to property. Detriment is a falling off from an original condition as the result of damage, depreciation, devaluation, etc.: Overeating is a detriment to health. Harm may denote either physical hurt or mental, moral, or spiritual injury: bodily harm; harm to one's self-confidence.