Jump to Phase
Construction is consistently one of the world's most hazardous industries. Falls from height, caught-between incidents, crane and lifting operations, excavation collapses, and electrical contacts account for the majority of serious injuries and fatalities on construction sites globally.
When an incident happens on your site, the quality of your investigation determines whether the same event happens again. This checklist gives your team a structured path through every phase, from the moment something goes wrong to verified corrective action close-out.
Use it alongside a structured methodology like ICAM for serious incidents, or as a standalone guide for moderate-severity events.
Phase 1: Immediate Response (0-30 Minutes)
The actions taken in the first 30 minutes after an incident determine the quality of everything that follows. Get these right.
Immediate Response Checklist
Phase 2: Scene Preservation (0-2 Hours)
Evidence degrades fast on construction sites, equipment gets moved, conditions change, and memory fades. Preserve the scene before anything is touched.
Scene Preservation Checklist
Phase 3: Investigation Team Assembly (2-4 Hours)
Team Assembly Checklist
Phase 4: Evidence Collection (Days 1-3)
Construction incidents typically involve multiple evidence types. Capture all of them systematically.
Physical Evidence
Document Evidence
Phase 5: Witness Interviews
Witness interviews are often the most critical and most poorly-executed part of construction investigations. Follow these principles.
Witness Interview Checklist
Phase 6: Root Cause Analysis
This is where most construction investigations fall short. Go beyond the immediate cause to organisational factors.
Root Cause Analysis Checklist
Phase 7: Corrective Actions
Corrective Action Checklist
Phase 8: Report, Communication & Close-Out
Reporting & Close-Out Checklist
Common Construction Incident Types, Special Considerations
Falls from Height
Falls are the leading cause of construction fatalities. When investigating, specifically examine: edge protection design and installation, harness inspection and anchor point adequacy, rescue plan (was there one?), and whether workers were working in proximity to unprotected edges as a routine practice or a one-off deviation.
Scaffold Failures
Check: scaffold design (was it engineered?), erector competency, inspection regime, modification history (was it modified after inspection sign-off?), and load management. Scaffold failures are almost always a system failure, not a random structural event.
Crane and Lifting Incidents
Examine: lift plan adequacy, exclusion zone management, load assessment, operator certification, signal communication, and ground conditions. The most common contributing factor is inadequate lift planning, particularly for complex or non-routine lifts.
Excavation Incidents
Investigate: soil classification, shoring/battering design, inspection regime, changing conditions (rain, vibration), and whether service locating was completed before excavation began.
Electrical Incidents
Focus on: isolation procedures, permit systems, cable detection, proximity to overhead lines, and whether electrical work was within the competency of the person performing it. Unauthorised electrical work is a recurring factor.
Using This Checklist Effectively
A printed checklist is better than nothing. But a digital investigation platform that guides your team through this process, automatically captures evidence, and tracks corrective actions through to verified close-out is significantly better.
InvestigatePro gives every investigator on your construction site a structured investigation workflow, ICAM methodology, built-in 5 Whys, AI coaching that challenges shallow analyses, and corrective action tracking that doesn't let actions fall through the cracks.
Stop Investigations Falling Short
InvestigatePro guides your site safety team through every incident investigation, from first notification to verified close-out. ICAM methodology with AI coaching. Built for construction and high-hazard industries. Free guided demo.
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