Non-Destructive Digging
Use high-pressure water and vacuum extraction to break up and remove soil without damaging underground utilities or infrastructure.
How it Works
Non-Destructive Digging (NDD), also known as Hydro Excavation, uses a high-pressure water lance to break up soil and safely expose underground utilities without causing damage. The loosened material is simultaneously removed using a high-velocity vacuum system, which transports the spoil into a hydro-vac unit for secure containment.
All excavated material is then disposed of at approved transfer stations in line with EPA requirements. This method provides a controlled, precise and environmentally responsible way to excavate, locate assets, and open trenches.
The Benefits
- Completely non-destructive to underground assets during excavation.
- Improves safety for workers and surrounding infrastructure.
- Delivers high precision and accuracy over traditional excavation.
- Reduces environmental impact on the surrounding area.
- Minimises mess and disruption on-site.
- Can access tight or confined spaces with ease.
- Complies with regulations and is often preferred by government agencies.
- Provides a versatile solution for a wide range of excavation needs.
Non-Destructive Digging FAQs
What is Hydro Excavation or Non-Destructive Digging (NDD)?
Non-Destructive Digging, also known as Hydro Excavation, is a safe excavation method that uses high-pressure water to break up soil and a high-velocity vacuum to remove the material. This allows underground assets to be exposed without the risk of damage.
How does Hydro Excavation work?
A high-pressure water lance cuts through the soil, and the loosened material is instantly vacuumed into a hydro-vac unit. The spoil is then transported to approved disposal facilities in line with Environment Protection Authority standards.
Why is NDD safer than traditional digging?
Because it doesn’t rely on mechanical force, NDD significantly reduces the risk of striking or damaging underground utilities. This protects workers, infrastructure, and the surrounding environment.
What are the main benefits of using NDD?
Key benefits include greater safety, precision, reduced environmental impact, minimal mess, improved efficiency, and the ability to work in tight or sensitive areas. It’s also a preferred method for many government and utility agencies.
When is Hydro Excavation the preferred option?
It’s ideal whenever underground utilities need to be located, when sensitive infrastructure is involved, or where traditional excavation would pose risks. It’s also preferred for confined spaces or areas requiring precise, controlled excavation.
Can NDD be used for large projects?
Absolutely. NDD is suitable for both small, targeted excavations and larger-scale works. Its efficiency and precision make it versatile across a wide range of applications.
Does Hydro Excavation reduce environmental impact?
Yes. By using water instead of heavy machinery, NDD minimises ground disturbance, reduces noise and emissions, and delivers a cleaner, more controlled excavation process.