Product Overview

Summary: This Wind Turbine Foundation Inspection SOP provides a clear, step-by-step framework for planning, conducting and documenting safe inspections of wind turbine foundations across Australian sites. It helps organisations manage structural and ground stability risks, protect inspection personnel, and demonstrate due diligence under WHS and engineering standards.

Wind turbine foundations are critical assets that must perform reliably under cyclic loading, harsh weather and remote site conditions. Undetected cracking, corrosion, grout failure or ground movement can lead to serious safety incidents, extended turbine downtime and costly remediation works. This Wind Turbine Foundation Inspection Safe Operating Procedure sets out a consistent, risk-based approach to inspecting foundations, plinths, anchor cages, grout beds and surrounding hardstands, tailored to the Australian wind energy context and WHS framework.

The SOP guides personnel through safe site access, pre-start planning, isolation requirements, confined space considerations for foundation chambers, and the systematic inspection of concrete, steel components, earthing, drainage and soil conditions. It defines inspection frequencies, acceptance criteria, defect grading, and mandatory photographic and measurement records, enabling asset owners to track degradation over time. By implementing this procedure, organisations can minimise the likelihood of structural failures, protect workers and contractors from harm, and maintain strong evidence of compliance with WHS duties, Australian Standards and OEM recommendations.

Designed for both owner-operators and service providers, the document supports integration into existing maintenance management systems and contractor controls. It provides practical guidance on coordinating inspections with turbine outages, managing work in remote or high-wind environments, and escalating critical findings for engineering review. The result is a robust, defensible inspection regime that supports the long-term safety, reliability and financial performance of wind farm assets.

Key Benefits

• Ensure consistent, thorough and auditable inspections of wind turbine foundations across all sites.
• Reduce the risk of structural failure, component collapse or ground instability impacting workers and assets.
• Support compliance with Australian WHS legislation, engineering standards and OEM maintenance requirements.
• Streamline planning and coordination of inspections with turbine outages and contractor activities.
• Improve defect detection, prioritisation and follow-up through clear criteria and documentation requirements.

Who is this for?

• Wind Farm Operations Managers
• Asset Integrity Managers
• WHS Managers and Advisors
• Civil and Structural Engineers
• Site Supervisors
• Wind Turbine Technicians
• Inspection and Maintenance Planners
• Contractor HSE Managers
• Geotechnical Engineers

Hazards Addressed

• Structural failure or partial collapse of foundation components
• Trips, slips and falls around uneven hardstands, excavations and cable trenches
• Falls from height at plinths, access platforms or exposed edges
• Confined space risks in foundation chambers or below-grade compartments (oxygen deficiency, toxic atmospheres)
• Manual handling injuries from lifting covers, hatches and inspection equipment
• Contact with energised electrical components or earthing systems
• Exposure to adverse weather conditions, high winds and lightning during outdoor inspections
• Vehicle and mobile plant interactions on wind farm access roads and hardstands
• Exposure to dust, noise and vibration during associated remedial works or testing

Included Sections

• 1.0 Purpose and Scope
• 2.0 Definitions and Abbreviations
• 3.0 Roles and Responsibilities
• 4.0 Applicable Legislation, Standards and OEM Requirements
• 5.0 Competency, Training and Authorisation Requirements
• 6.0 Tools, Equipment and Inspection Instruments
• 7.0 Personal Protective Equipment (PPE) Requirements
• 8.0 Pre-Inspection Planning and Risk Assessment (JSA/SWMS)
• 9.0 Site Access, Traffic Management and Isolation Requirements
• 10.0 Environmental and Weather Considerations for Inspections
• 11.0 Foundation Types and Components Overview
• 12.0 External Foundation Inspection Procedure
• 13.0 Internal/Below-Grade Inspection Procedure (Including Confined Space Controls)
• 14.0 Inspection of Concrete, Grout, Anchor Bolts and Steelwork
• 15.0 Inspection of Earthing, Drainage and Surrounding Ground Conditions
• 16.0 Defect Classification, Tolerances and Acceptance Criteria
• 17.0 Documentation, Photography and Record-Keeping Requirements
• 18.0 Communication, Handover and Reporting of Findings
• 19.0 Escalation and Engineering Review of Critical Defects
• 20.0 Corrective Actions, Temporary Controls and Re-Inspection
• 21.0 Emergency Procedures and Incident Response During Inspections
• 22.0 Audit, Review and Continuous Improvement of the SOP

Legislation & References

• Work Health and Safety Act 2011 (Cth) and harmonised state and territory WHS Acts
• Work Health and Safety Regulations 2011 and equivalent state and territory regulations
• Safe Work Australia – Code of Practice: Managing the Risk of Falls at Workplaces
• Safe Work Australia – Code of Practice: Confined Spaces
• Safe Work Australia – Code of Practice: Managing the Risk of Plant in the Workplace
• AS/NZS 1170.2: Structural design actions – Wind actions
• AS 3600: Concrete structures
• AS 2159: Piling – Design and installation (where applicable to foundation systems)
• AS/NZS 4801: Occupational health and safety management systems (superseded but still commonly referenced)
• ISO 45001: Occupational health and safety management systems – Requirements with guidance for use
• OEM (Original Equipment Manufacturer) maintenance and inspection guidelines for wind turbine foundations