Contractors

Job Hazard Analysis (JHA) Generator

Generate a comprehensive Job Hazard Analysis for a specific construction task. This prompt helps contractors create thorough, task-specific JHAs that identify hazards, assess risks, and document control measures — meeting OSHA requirements and protecting workers from preventable injuries.

This prompt generates a task-specific Job Hazard Analysis that walks through each step of a named construction task (such as steel erection, trenching, or confined space entry), identifying the potential hazards at each step, existing controls, residual risk level after controls, and additional measures recommended — along with PPE requirements, emergency response procedures, required permits, pre-task briefing items, and a crew acknowledgment signature block. The JHA is reviewed by a competent person before work begins and must be updated when site conditions change, new crew members join, or a near-miss occurs during the task — it is a living field document, not a one-time filing. It is for general contractor safety managers and foremen on commercial and industrial construction projects who need task-specific OSHA-aligned hazard documentation.

Testedclaude-sonnet-4-6ValidatedMar 2026ScopeVerify against current contract documents and local regulati…TierProfessional
AI Role
You are a senior construction project manager with expertise in construction saf…
Models
Claude
Confidence
Professional
Constraints
Verify against current contract documents and local regulations. This does not replace professional engineering judgment.
JHAs do not eliminate the need for site-specific hazard assessment — they must be reviewed by a competent person before work begins.
OSHA requirements for specific high-hazard tasks (fall protection, confined space, excavation) may impose requirements beyond what this JHA covers — verify applicable OSHA standards.
Never substitute a written JHA for an actual pre-task crew briefing — the briefing and crew review of the JHA are as important as the document.
Tested Models
claude-sonnet-4-6
Uncertainty
If site-specific conditions are not provided, generate the JHA for the typical task conditions and note that site-specific hazards must be added by a competent person after a site-specific assessment.
Last updated
2026-05-28Published

The prompt

1,696 characters
jha-generator.prompt
You are a senior construction project manager with expertise in construction safety programs, hazard identification, and OSHA compliance.

Generate a Job Hazard Analysis for the following task:

Task information:
- Task description: [TASK — e.g., steel erection, concrete forming, roofing, trenching, confined space entry, electrical installation]
- Location: [LOCATION — e.g., on-site, elevation, underground]
- Trade / crew type: [CREW]
- Special conditions: [CONDITIONS — e.g., overhead utilities, adjacent traffic, existing structure, extreme weather]

Project-specific hazards:
[DESCRIBE ANY SITE-SPECIFIC HAZARDS OR CONDITIONS]

Generate a JHA covering:

## Task Overview
Brief description of the work to be performed, crew size, equipment involved, and estimated duration.

## Step-by-Step Hazard Analysis
For each step in the task:
- Step number and description
- Potential hazards at this step
- Existing controls (PPE, engineering controls, administrative controls)
- Residual risk level after controls (High / Medium / Low)
- Additional control measures recommended

## Personal Protective Equipment (PPE) Requirements
All PPE required for this task — minimum required and task-specific.

## Emergency Response Plan
For this task: what emergencies are most likely, how to stop work, evacuation route, emergency contact.

## Required Permits
Any permits required before work begins: confined space entry permit, hot work permit, excavation permit, energized electrical work permit.

## Pre-Task Briefing Items
Items that must be covered in the crew briefing before work starts.

## Acknowledgment Line
Signature block for crew members to sign, confirming they received the JHA briefing.
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How to use this prompt

1

1. Fill in all task-specific fields before generating the JHA — a generic JHA offers less protection than a task-specific one and provides weak OSHA compliance documentation.

2

2. Have the foreman and crew review the JHA together at the pre-task briefing — the review process is where the safety value is created, not in the document itself.

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3. File signed JHAs in the project safety records — they are critical documentation in any OSHA inspection or incident investigation.

Customization tips

Add 'This task involves working at heights of [X] feet — expand the fall protection analysis to include fall arrest system inspection, anchor point verification, and rescue plan.'
For confined space entry, add 'This is a permit-required confined space — the JHA must reference the confined space entry permit and confirm atmospheric testing, isolation, and rescue arrangements.'
Append 'Add a heat illness prevention section for tasks performed during summer months or in high-heat environments — heat stress is a leading cause of construction fatalities.'

Sample output

Mar 2026Professional
Job Hazard Analysis — Elevated Concrete Deck Placement Project: [Project Name] JHA Number: JHA-2024-031 Date: [Date] Task: Concrete placement for 5th floor deck slab Location: Level 5, Building A Crew: Concrete placement crew — [Number] workers Prepared by: Safety Manager Reviewed by: Superintendent HAZARD IDENTIFICATION AND CONTROL: HAZARD 1 — Falls from unprotected floor edges and openings Description: The 5th floor deck has open perimeter edges and multiple floor openings for future mechanical penetrations. Workers performing concrete placement and finishing are exposed to fall hazards. Controls required: • Perimeter guardrail system (top rail, mid-rail, and toe board) installed and inspected before concrete work begins • All floor openings covered with load-rated covers secured against accidental displacement — covers marked "HOLE — DO NOT REMOVE" • Safety harness required within 6 feet of any opening where a guardrail system is not in place • Guardrail system inspection documented before each shift start HAZARD 2 — Concrete truck and pump equipment struck-by hazards Description: Concrete mixer trucks and pump equipment moving in and around the structure present struck-by hazards for workers on foot. Controls required: • Spotters assigned to guide all concrete truck movements — spotter maintains visible contact with truck driver at all times • Designated pedestrian pathways marked and communicated at pre-pour toolbox talk • High-visibility vests required for all workers in areas with active equipment movement • Truck backing performed only with spotter present; horn signal protocol established HAZARD 3 — Overexertion and heat illness during extended pour Description: Concrete placement may extend 6-8 hours. Workers performing physical screed and finishing work in warm weather are at risk for heat-related illness. Controls required: • Water station with cool water and electrolyte replacement available at pour level • Shade structure or rest area designated within 100 feet of work area • Mandatory 10-minute rest period every hour during temperatures above 90°F • Supervisor monitors crew for signs of heat illness — early intervention protocol briefed at toolbox talk • Emergency communication plan reviewed: nearest hospital location, first aid kit location HAZARD 4 — Skin contact with wet concrete Description: Prolonged skin contact with wet concrete causes chemical burns through alkali content. Controls required: • Waterproof gloves and rubber boots required for all workers in direct contact with wet concrete • Long-sleeved shirts and full-length pants — no exposed skin contact • Eye protection (safety glasses) during all concrete placement and finishing activities • Wash station with clean water immediately accessible PRE-POUR BRIEFING: JHA reviewed with entire crew before work begins. All crew members sign attendance log confirming JHA review.

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Frequently asked questions

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Professional Disclaimer

This AI-generated content is for informational and educational purposes only. It does not replace the professional judgment of licensed engineers or construction professionals. Always verify against current contract documents, local building codes, and safety regulations.