How is a trench defined in relation to its physical dimensions?

A trench is specifically defined as a type of excavation that is deeper than it is wide, and this definition includes a stipulation regarding its width. According to safety standards, a trench is characterized by having a width that does not exceed 15 feet. This distinction is crucial in the context of excavation work, as it determines the occupational safety measures and regulations that need to be implemented during trenching operations. By maintaining this depth-to-width ratio, safety guidelines help to prevent collapses and ensure that adequate support systems can be employed for workers who are operating in or near the trench.

The physical dimensions outlined in option B reflect both safety and engineering considerations pertinent to construction and excavation practices. Proper understanding of these definitions helps operators and safety managers implement the right protocols to protect workers and adhere to local regulations.