Test Methods and Specifications
Horizontal Directional Drilling
- Publication no: ATS-4540-25
- Published: 2 September 2025
- Edition: 1.0
- PDF (free) Download
Austroads Technical Specification ATS 4540 sets out the requirements for the installation of pipes using Horizontal Directional Drilling (HDD). The pipes may be for the purpose of moving fluids or gases or for the protection of telecommunications/electrical cables.
The technical specification can also be downloaded as a Word document.
- 1. Scope
- 2. Referenced Documents
- 3. Definitions
- 4. Quality System Requirements
- 5. Personnel
- General
- Critical HDD Crossing - Personnel Requirements
- 6. Project Preliminaries
- Construction Risk Management
- Environmental Management
- 7. Design
- General
- Utility Location
- Geotechnical Investigation
- Grouting of the Outer Annulus Space
- Alignment
- Minimum Depth Below Roads
- Design Documentation
- Critical HDD Crossings - Additional Design Requirements
- Submission of Design Documentation to the Principal
- 8. Materials
- Pipes
- Drilling Fluid
- Certification of Material Conformance
- 9. Construction
- General
- Quality Plan
- Drilling, Reaming and Conditioning
- Critical HDD Crossings - Requirements for Drilling Fluids
- Pipe Welding and Installation
- Integrity Tests
- Records
- Critical HDD Crossings - Additional Reporting
- Grouting
- 10. Conformity
- Construction Tolerances
- Settlement and Heave
- 11. Instrumentation and Monitoring of Ground Deformation
- 12. Completion of the Work
- General
- Records
- Annexure A: Summary of Hold Points, Witness Points and Records
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