Non-Destructive Digging (NDD) is a technique used to excavate soil without causing damage to underground utilities or structures. This method typically employs high-pressure water or air to loosen the soil, which is then vacuumed away. NDD is particularly useful in urban areas where buried cables and pipes are common, helping to prevent costly repairs and service interruptions. The primary tools used in NDD include hydro excavation and air excavation equipment. These tools allow for precise digging, making it easier to locate and access underground installations safely. By minimizing disruption, NDD supports efficient construction and maintenance projects while protecting vital infrastructure.