JHA / JSA / AHA builderElevated Slab Formwork Erection JHA
A JHA breaks the work into steps, hazards and controls. Use this example to build a draft for your actual job and review it with your crew.
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Step 1 of 4 · Working draft
Your job
Tell Jenkins what you’re planning and where the work will happen. Use the actual job details.
Use the published example’s suggestions when they fit your task, or write your own steps. These are planned controls, not verified worksite conditions.
Describe an observable step, how someone could be harmed, and the control that acts on that hazard. Identify who checks it and what evidence is needed.
Walk through the plan with the people doing the work. Resolve missing controls and agree who checks them. Moving to the next step does not approve the work.
Confirm people, equipment and emergency arrangements
Record changes, checks, and open actions
Walk the work area, review with the crew, and resolve missing controls. Follow the required approval process. This tool does not judge completeness, verify signatures or authorize work.
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Your Elevated Slab Formwork Erection JHA
Walk through the job in order. Use these possible hazards, planned controls and checks to start a conversation about your actual work.
011. Release the design and support area
Possible hazards: An assumed floor capacity or outdated shore layout can allow the elevated form system to fail.
Planned controls: Formwork lead obtains current drawings and the supporting-surface load release. Mark the bay and permitted storage locations; refer mismatched dimensions, supports or site conditions to the responsible designer before erection.
Check before work: Lead compares the marked bay with the current support and formwork documents.
022. Inspect and stage components
Possible hazards: Damaged shores or unstable piles can collapse or strike a worker during assembly.
Planned controls: Inspect components against the system requirements and remove weakened or incompatible parts from use. Land manageable quantities on specified supports, preserving protected routes and keeping people clear of moving loads.
Check before work: Assigned inspector records rejected parts; foreperson studies storage and access before assembly.
033. Erect shores and restraint
Possible hazards: An incomplete shore line can overturn; unsupported bases or misplaced heads can transfer loads incorrectly.
Planned controls: Crew installs bases, shores, heads and braces in the released sequence from suitable access. Establish the designed foundation contact and restraint at each stage; do not use loose packing or unapproved eccentric bearing to make parts fit.
Check before work: Formwork lead verifies location, contact and required restraint before bearers are added.
044. Place bearers and deck forms
Possible hazards: Workers can fall through the advancing deck or be struck by dropped members and panels.
Planned controls: Use the planned material transfer and protected erection positions. Install members and deck forms in the specified sequence, keeping the area below closed and protecting incomplete edges and openings as they develop.
Check before work: Access lead checks the next work position and foreperson checks member restraint before advance.
055. Complete the pre-pour review
Possible hazards: An omitted connection, brace or loading limit can remain hidden until fresh concrete loads the forms.
Planned controls: Compare the assembled bay with current drawings, specified hardware and loading restrictions. Resolve discrepancies through the designated review process; do not cover defects or release pouring while actions remain open.
Check before work: Responsible reviewer records actual findings and unresolved items at the pre-pour hold point.
066. Hand over and preserve support
Possible hazards: A later crew can move a brace, overload the deck or assume supports can be removed.
Planned controls: Brief the placing lead on permitted loads, pour sequence and support restrictions. Assign the required shoring inspections immediately before, during and after placement under the separate pour plan; protect supports from interference.
Check before work: Formwork and placing leads confirm inspection roles and loading limits at handover.
Example scope and starting conditions
A formwork crew will erect a designed shoring, bearer and deck-form system for one elevated cast-in-place building slab. Assembly uses protected access and the system’s released erection sequence; the example ends at pre-pour handover. This fictional learning example describes planned controls; it records no actual inspection or work authorization.
- Current formwork drawings establish support loads, shore layout, braces, member connections and permitted material staging.
- The supporting floor or foundation, erection access, fall protection and area below must be released before assembly.
- This is partial coverage of general formwork erection. Flying forms, tiered single-post shores, concrete placement, stripping and reshoring removal need separate analyses.
Know when to pause
- Support settlement, damaged components or loss of brace contact.
- The assembled layout, staged load or planned pour differs from current drawings.
- Protected access, opening protection or the exclusion area below is lost.
After a pause, correct the condition, reassess the work, and obtain required authorization before restarting.
Free example and template
No account required. The worked example contains planned controls. The blank template is for your own work; neither includes fabricated inspection results, signatures or approval.
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Jenkins · Your Safety Concierge
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For managers
Does the team have what it needs to carry out the plan? Give the crew time, equipment and support, and make it clear who will resolve anything that is missing.
Manager checks and supporting resources
Confirm the people doing the work have the time, equipment, information and support to carry out the plan. Agree who checks the controls and who resolves open actions.
Questions to resolve before work
- Who confirms that the supporting surface can carry the shore reactions and staged materials?
- How will each erection stage retain safe access and fall protection before the deck is complete?
- Which current drawings and hold points govern the pre-pour formwork handover?
Training and qualifications to confirm
- System-specific shore, bearer, head and brace assembly, including component rejection and permitted adjustment.
- Instruction in the staged fall-protection, dropped-object and formwork handover arrangements for assigned workers.
Confirm the actual training evidence for the assigned people. A toolbox talk does not establish competence.
Decisions that change the plan
Does the existing wall-form AHA cover this slab system?
No. Its ground-level gang wall forms use a different temporary load path and access sequence. This example addresses elevated slab shores and deck forms; the actual design and pre-pour review remain project decisions.
What must the crew record for actual use?
Record the form-system identity, current drawing revision, support/load basis, component findings, staged access, assigned review roles and open actions. Keep erection handover separate from pour authorization and later strength-based removal release.
Keep planning connected
Resources that support this JHA
Additional tools for task planning and safe work. Start with the free resources; explore paid options only when they meet an additional need.
Toolbox talks for the work
Prepare a practical crew discussion.
Concrete Formwork: Verify Stability Before Placement →Fall Prevention: Verify the Controls →Form Stripping: Verify the Release and Reshoring →
Safety program resources
Review procedures, roles, and requirements.
Browse the existing catalog and confirm the scope and purchase availability of each program.
Browse safety programs →
Paid service · Availability
Task-specific training and qualifications
Explore applicable training and qualification needs.
Task-specific training services are not currently available to book here. Start with the free training-needs lookup; a toolbox talk or online course alone does not establish competence or employer authorization.
Review training needs · Free →People, equipment, emergency arrangements and open actions are recorded in the guided JHA’s Crew review step.
Open the crew review step →For safety professionals
How do we know the planning process and controls are working? Connect what the crew reports with field checks, risk decisions and the evidence behind your system.
Industry context, SIF, control verification and AHA review
Guidance and evidence
Review the method, risk decisions and evidence behind the plan. Use the actual jurisdiction, equipment instructions, employer process and project requirements.
Task-by-task control and verification rationale
1. Release the design and support area
Hazard: An assumed floor capacity or outdated shore layout can allow the elevated form system to fail.
Control: Formwork lead obtains current drawings and the supporting-surface load release. Mark the bay and permitted storage locations; refer mismatched dimensions, supports or site conditions to the responsible designer before erection.
Verification: Lead compares the marked bay with the current support and formwork documents.
Why this belongs in the analysis: The existing surface and the temporary form system form one load path.
2. Inspect and stage components
Hazard: Damaged shores or unstable piles can collapse or strike a worker during assembly.
Control: Inspect components against the system requirements and remove weakened or incompatible parts from use. Land manageable quantities on specified supports, preserving protected routes and keeping people clear of moving loads.
Verification: Assigned inspector records rejected parts; foreperson studies storage and access before assembly.
Why this belongs in the analysis: A missing brace or substituted shore can change the designed system.
3. Erect shores and restraint
Hazard: An incomplete shore line can overturn; unsupported bases or misplaced heads can transfer loads incorrectly.
Control: Crew installs bases, shores, heads and braces in the released sequence from suitable access. Establish the designed foundation contact and restraint at each stage; do not use loose packing or unapproved eccentric bearing to make parts fit.
Verification: Formwork lead verifies location, contact and required restraint before bearers are added.
Why this belongs in the analysis: Temporary stability is needed during erection as well as during the pour.
4. Place bearers and deck forms
Hazard: Workers can fall through the advancing deck or be struck by dropped members and panels.
Control: Use the planned material transfer and protected erection positions. Install members and deck forms in the specified sequence, keeping the area below closed and protecting incomplete edges and openings as they develop.
Verification: Access lead checks the next work position and foreperson checks member restraint before advance.
Why this belongs in the analysis: The completed deck’s appearance does not protect the preceding erection stage.
5. Complete the pre-pour review
Hazard: An omitted connection, brace or loading limit can remain hidden until fresh concrete loads the forms.
Control: Compare the assembled bay with current drawings, specified hardware and loading restrictions. Resolve discrepancies through the designated review process; do not cover defects or release pouring while actions remain open.
Verification: Responsible reviewer records actual findings and unresolved items at the pre-pour hold point.
Why this belongs in the analysis: A planned check must produce actual findings before the next operation starts.
6. Hand over and preserve support
Hazard: A later crew can move a brace, overload the deck or assume supports can be removed.
Control: Brief the placing lead on permitted loads, pour sequence and support restrictions. Assign the required shoring inspections immediately before, during and after placement under the separate pour plan; protect supports from interference.
Verification: Formwork and placing leads confirm inspection roles and loading limits at handover.
Why this belongs in the analysis: This erection example ends before placement and grants no stripping release.
Compare control wording
| Needs improvement | More useful for this scenario |
|---|---|
| Use enough props. | Formwork lead releases the support surface and current shore layout; crew installs the specified contact, restraint and connections before deck loading. |
| Check the forms before pouring. | Responsible reviewer compares the assembled bay with current drawings, records discrepancies and holds the pour until actions are resolved. |
Common questions
Can this example be used as a JSA?
Adapt its Task | Hazard | Control analysis to the employer’s format and actual conditions. The example is a teaching aid, not evidence that controls were checked.
What changes if the project requires an AHA?
Use the governing AHA format, risk method, supporting records and acceptance process. The published formwork AHA demonstrates that additional structure; changing a JHA title does not supply it.
Are these resources part of a paid course?
This walkthrough, browser draft builder and downloads are free public resources, separate from Academy course enrollment.
References and source note
- OSHA 1926.703 Cast-in-place concrete
- OSHA 1926.701 Concrete construction loads and reinforcing steel
- OSHA 1926.501 Fall protection
Original instructional scenario with planned controls. Primary references support hazard planning. Use actual equipment and product instructions, project design and employer requirements to establish field criteria. Use actual equipment instructions and site requirements alongside these references. Reference review: October 9, 2026.
Developed by Todd Jerome Jenkins, MS, CSP · Edition v1.0 · October 9, 2026
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