Product Overview

Summary: This Crossing Service Lines Safe Operating Procedure provides a clear, step‑by‑step method for safely working around and crossing over underground and overhead services on Australian worksites. It helps organisations prevent costly strikes, outages and serious injuries by standardising how services are located, assessed, protected and monitored before and during excavation or construction activities.

Crossing existing service lines – whether electrical, gas, water, sewer, telecommunications or data – is one of the highest‑risk activities on civil and construction sites. A single strike can result in serious injury or fatality, major service outages, environmental contamination and significant regulatory penalties. This Crossing Service Lines SOP sets out a practical, repeatable process for identifying, verifying and protecting all services before any excavation, boring, trenching or construction work proceeds in their vicinity.

Developed for Australian conditions and WHS expectations, the procedure walks your team through planning, Dial Before You Dig (DBYD/Before You Dig Australia) enquiries, service proving, risk assessment, permit requirements, safe work methods and controls for both underground and overhead services. It clarifies who is responsible at each stage – from project managers and supervisors to plant operators and subcontractors – and embeds a consistent approach to documentation, isolation, stand‑off distances and monitoring. By implementing this SOP, businesses can significantly reduce the likelihood of damaging critical infrastructure, improve coordination with asset owners, and demonstrate due diligence under WHS law and relevant Australian Standards.

Key Benefits

• Reduce the risk of service strikes that can cause electrocution, explosions, flooding or major outages.
• Ensure a consistent, documented approach to locating, proving and protecting underground and overhead services.
• Strengthen compliance with Australian WHS legislation, asset owner requirements and relevant Australian Standards.
• Improve coordination and communication between supervisors, plant operators, utility locators and asset owners.
• Minimise project delays, rectification costs and reputational damage arising from damaged service infrastructure.

Who is this for?

• Site Supervisors
• Civil Construction Supervisors
• Project Engineers
• Excavator Operators
• Plant Operators
• Utility Locators
• WHS Advisors and HSE Managers
• Construction Project Managers
• Plumbers and Drainage Contractors
• Electrical Contractors
• Telecommunications Technicians
• Local Government Works Coordinators

Hazards Addressed

• Contact with live underground electrical cables leading to electric shock or electrocution
• Rupture of gas mains causing fire, explosion and inhalation hazards
• Damage to water or sewer lines resulting in flooding, ground instability and biological contamination
• Striking pressurised pipelines (water, fuel, chemicals) causing high‑pressure release and environmental harm
• Contact with telecommunications and fibre‑optic cables leading to eye injury from laser light and critical service disruption
• Overhead power line contact or arcing from plant and equipment
• Ground collapse or loss of ground support around exposed services
• Manual handling and musculoskeletal injuries during hand‑digging and service proving activities
• Vehicle and plant movement risks in constrained service corridors

Included Sections

• 1.0 Purpose and Scope
• 2.0 Definitions and Types of Service Lines
• 3.0 Roles and Responsibilities
• 4.0 Pre‑Planning and BYDA (Dial Before You Dig) Enquiries
• 5.0 Documentation Review and Service Plan Interpretation
• 6.0 Risk Assessment and Permit to Work Requirements
• 7.0 Service Location and Proving Methods (Electronic locating, potholing, vacuum excavation)
• 8.0 Controls for Crossing Underground Services
• 9.0 Controls for Working Near and Crossing Under/Over Overhead Services
• 10.0 Isolation, De‑energisation and Clearance Requirements
• 11.0 Use of Plant, Equipment and Hand Tools Near Services
• 12.0 Signage, Barricading and Protection of Exposed Services
• 13.0 Communication, Consultation and Coordination with Asset Owners
• 14.0 Emergency Response and Incident Reporting for Service Strikes
• 15.0 Training, Competency and Authorisation Requirements
• 16.0 Inspection, Monitoring and Review of Controls
• 17.0 Records, Permits and Document Control

Legislation & References

• Work Health and Safety Act 2011 (Cth) and equivalent state and territory WHS Acts
• Work Health and Safety Regulations 2011 (Cth) and equivalent state and territory WHS Regulations
• Safe Work Australia – Excavation Work Code of Practice
• Safe Work Australia – Managing Electrical Risks in the Workplace Code of Practice
• AS/NZS 3000:2018 Electrical installations (Wiring Rules)
• AS 5488.1:2019 Classification of subsurface utility information – Subsurface utility information
• AS 1742.3:2019 Manual of uniform traffic control devices – Traffic control for works on roads
• Before You Dig Australia (BYDA) – Duty of Care Guidelines and asset owner requirements