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.
Learner's definition of CRITICISM. 1. [noncount] : the act of expressing disapproval and of noting the problems or faults of a person or thing : the act of criticizing someone or something. There was much public criticism directed/leveled at the senator. The new law attracted/drew widespread criticism. [=many people criticized the new law]