What tool is recommended to mark trenches during construction?

Tracer tape is a specialized tool that is recommended for marking trenches during construction. This type of tape is often buried along with utility lines to provide a clear and easily identifiable marker for future excavation or construction work. Tracer tape is typically color-coded to represent specific utilities, like water, gas, or electric, making it integral for safety and efficiency. By using tracer tape, workers can prevent accidental damage to underground utilities, which can be both costly and dangerous.

Other options like high visibility paint, flags, and barrier tape have their purposes in construction but do not offer the same long-term solution as tracer tape. High visibility paint may provide a temporary marker for the duration of a project but lacks the longevity needed once the trench is backfilled. Flags are useful for surface marking but can be easily displaced or removed. Barrier tape is generally used to indicate hazards or restricted areas, rather than marking the specific location of underground utilities. Overall, tracer tape is specifically designed for underground applications, making it the ideal choice for marking trenches during construction.