Which description best describes a trench excavation scenario?

• A. A shallow ditch with no need for shoring.
• B. A large open pit for disposal.
• C. A trench that has collapsed due to weather.
• D. An excavation in the earth that is narrow in width, usually 15 ft or narrower; longer and deeper than it is wide.

Answer: (D)

A trench excavation is an elongated, narrow cut in the earth where the length and depth exceed the width, and the width is typically 15 feet or less. This geometric shape—long and deep compared with how wide it is—defines a trench, distinguishing it from other excavations like open pits or shallow ditches. The other scenarios describe different forms or conditions: a shallow ditch is not necessarily a trench in the narrow, long sense; a large open pit isn’t a trench; a trench that has collapsed is a dangerous condition, not the standard description of a trench’s geometry.