Fall into a pit, shaft or trench: NSW workers compensation guide

Fall into a pit, shaft or trench can occur through stepping or reversing through an unprotected edge and a cover, barrier or access platform giving way. The incident history should identify the task, equipment, location and sequence of events rather than relying on the job title alone.

People commonly exposed include construction and civil workers near excavations and mechanics and maintenance workers around service pits. Employment records should identify each person's task, employer and position in the work area when the incident occurred.

Medical records after a fall into a pit, shaft or trench may identify spinal fracture and ankle fracture. Each diagnosis should be linked to the event or exposure and to the worker's actual functional change.

After a fall into a pit, shaft or trench, immediate reporting and safety records may include measurements and photographs of depth, edge, barrier, access and landing surface and excavation permit, inspection and work-area handover records. These records can establish what was known at the time without requiring the worker to repeatedly recount a traumatic event.

• Rescue, emergency and SafeWork notification records where applicable.
• If the facts may meet the WHS Act definition of a notifiable incident, the SafeWork notification reference, inspector correspondence and scene records, without delaying emergency assistance or other action permitted by section 39.

For a fall into a pit, shaft or trench, the first evidence to preserve includes site plan, SWMS and exclusion-zone arrangements and lighting, weather, ground and cover condition records. It is most useful when dates, people, equipment, duties and later medical histories tell a consistent account.

• Plant movement logs and spotter records if machinery was involved.
• Clinical history recording fall depth, impacts and delayed symptoms.

Medical and psychological evidence after a fall into a pit, shaft or trench may include first-aid, ambulance and early clinical histories describing the fall into a pit, shaft or trench sequence and diagnosis-specific examination, imaging and specialist evidence for spinal fracture, ankle fracture, knee injury, head injury. A diagnosis alone may not answer causation or capacity: the records should explain the work event, symptoms, treatment and practical restrictions.

• Certificates of capacity stating functional restrictions, hours and treatment rather than only a diagnosis.
• Operative, rehabilitation and psychological records where the event caused surgery, prolonged recovery or trauma symptoms.

After a fall into a pit, shaft or trench, an insurer may dispute whether the opening was within the worker’s authorised work area and whether a later injury or aggravation is consistent with the fall. The written decision should be answered with evidence directed to those stated reasons.

Fractures and spinal or head injuries may require surgery, bracing and extended rehabilitation. Treatment requests should identify the accepted diagnosis and expected functional benefit. If treatment is disputed after a fall into a pit, shaft or trench, the request should explain the accepted diagnosis, expected functional benefit and reasonable alternatives.

Work capacity after a fall into a pit, shaft or trench may turn on uneven ground, climbing, kneeling, balance, confined access and plant interaction and whether proposed duties eliminate the opening or access hazard in practice. Proposed duties must be compared with the real task demands and the worker's ability to sustain them for the proposed hours.

WPI depends on stable diagnosed consequences such as fracture alignment, spinal category, joint motion or neurological deficit. The accident mechanism, surgery, imaging finding or pain report alone does not establish a WPI percentage. Any WPI assessment after a fall into a pit, shaft or trench occurs after stabilisation under the NSW method for the accepted body system; the accident or surgery alone does not determine a percentage.

Another site controller or excavation contractor may be relevant to a separate liability investigation. Any separate occupiers-liability, product, TPD or work injury damages issue is distinct from statutory workers compensation and depends on its own evidence and legal criteria. These issues are separate from workers compensation and depend on the particular facts.

For a fall into a pit, shaft or trench, assistance may involve separate the fall into a pit, shaft or trench mechanism from the diagnoses and identify any missing incident record and compare the insurer’s written reasons with medical, treatment and work-capacity evidence. The purpose is to identify the disputed decision and the evidence needed for the next step, not to promise an outcome.