JHA / JSA / AHA builderEngineered Slab Reshore Removal 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 Engineered Slab Reshore Removal JHA
Walk through the job in order. Use these possible hazards, planned controls and checks to start a conversation about your actual work.
011. Establish the multilevel removal release
Possible hazards: A slab may be unable to carry its own weight and current loads when a remaining support is removed, even after original forms are stripped.
Planned controls: Support lead obtains the current engineered removal map, actual strength and loading basis and employer’s required determination. Match identified slabs, reshores and retained supports to the release, including affected levels above and below. Resolve revisions or incomplete evidence before touching a support; do not infer readiness from age or an earlier formwork handover.
Check before work: Lead verifies identified stages and actual strength and loading release evidence.
022. Control loads, access and affected areas
Possible hazards: An unplanned pallet, delivery or worker in the removal area can change slab demand or expose people to falling components.
Planned controls: Coordinate the actual loading hold with all affected floor leads and maintain the permitted load arrangement. Establish protected working access, component routes, required exclusions and observation positions under the removal method. Keep emergency access available and separate neighboring work that could disturb retained supports or the prescribed monitoring; verify changes before proceeding.
Check before work: Lead checks affected-level load controls, access and monitoring responsibilities.
033. Match removable and retained supports in the field
Possible hazards: A mistaken prop, damaged component or improvised tool can remove necessary support or expose the crew to an uncontrolled release.
Planned controls: Crew traces the actual reshore map at the released stage and identifies each removable component and those that must remain. Check relevant equipment condition and obtain the selected system’s permitted unloading and handling method. Hold a discrepancy or damaged support for responsible assessment; marking alone does not authorize removal and no one pulls a loaded prop sideways to free it.
Check before work: Assigned supervisor matches field support identities to the released stage map.
044. Unload and remove only the released stage
Possible hazards: Unexpected load, uncontrolled component movement or a change in slab response can trap workers and undermine the intended support transfer.
Planned controls: Under the named stage release, trained crew follows the actual engineering sequence and selected equipment’s unloading method from protected positions. Control each freed component through its planned handling arrangement and keep retained supports undisturbed. Assigned observers monitor the prescribed indicators; stop for binding, unexpected movement or lost communication rather than forcing release or improvising a jack adjustment.
Check before work: Supervisor confirms prescribed removal and observation findings at each hold point.
055. Verify the retained arrangement before progressing
Possible hazards: Continuing removal after an incomplete stage or unnoticed loading change can compound an unresolved support condition across floors.
Planned controls: Responsible personnel compare actual stage findings, retained supports and current loads with the engineered sequence before releasing the next identified stage. Keep discrepancies held and obtain the required engineering disposition. Maintain the agreed observation and access boundaries; absence of visible cracking is not a substitute for the required release evidence or authority.
Check before work: Named stage authority records actual disposition before further supports are disturbed.
066. Store components and transfer structural restrictions
Possible hazards: Poorly stored props can fall or roll, and an unclear handover can allow later loads or removal of supports that were deliberately retained.
Planned controls: Move removed components through the approved routes to stable storage, inspect and segregate damaged equipment and restore access only within the released condition. Record removed and retained support identities, actual stage decisions and unresolved issues. Transfer continuing loading, support and monitoring restrictions to affected floor leads; further load changes or support removal need their separate actual release.
Check before work: Receiving leads confirm retained supports and continuing floor restrictions.
Example scope and starting conditions
A trained support crew will remove identified non-tiered reshores beneath selected slabs in a multilevel concrete building under an engineer-issued release and removal sequence. Original forms have been separately removed. Actual concrete strength, loads in place and the remaining support arrangement govern each hold point; the crew does not choose a floor order or remove unmarked supports. This fictional learning example describes planned controls; it records no actual inspection or work authorization.
- The current multilevel load-transfer and removal design identifies slabs, reshores, retained supports, actual strength evidence and permitted loads. The employer obtains the required removal determination; age, a prior pour release or form stripping is not a reshore-removal basis.
- Protected access, actual support-equipment instructions, handling routes, monitoring and named stage-release roles are established. Changed loading or unexpected response remains held for responsible engineering disposition; no generic floor order, elapsed time or jack adjustment is supplied.
- Formwork stripping 238110-02 and elevated formwork 238110-03 connections are partial: engineered removal of identified remaining reshores only. Wall panels, original soffit forms, shore erection, tiered single-post shores, floor lifting and emergency stabilization are excluded.
Know when to pause
- The current reshore map, actual strength or loading evidence or employer’s stage release is missing or superseded.
- A support identity, retained arrangement, load condition or structural response differs from the engineering method.
- Protected access, supported handling, monitoring or communication cannot be maintained.
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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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
- Which actual strength and multilevel loading evidence releases each identified reshore-removal stage?
- Who controls construction loads and verifies retained supports while the released stage is removed?
- What stops the work for unexpected support or slab response, and who owns the remaining restrictions?
Training and qualifications to confirm
- Instruction on the actual reshore map, engineering sequence and stage hold points, including differentiating removable supports from those that must remain.
- Selected equipment instruction on permitted unloading and supported handling, with protected access, monitoring communication and escalation of abnormal structural response.
Confirm the actual training evidence for the assigned people. A toolbox talk does not establish competence.
Decisions that change the plan
Can the crew remove an obstructing reshore to clear a material route?
No removal is authorized by convenience. Maintain the identified retained support and revise the material route or obtain the responsible engineering disposition and actual removal release. Its load may affect several floors. This example supplies no generic substitute support, jacking action or floor sequence and does not authorize emergency stabilization.
What must the crew record for actual use?
Record slab and reshore identities, current removal design, actual strength and loading basis, employer and stage-release roles, field support matches, observations and completed-stage decisions. Identify retained supports, changed conditions and dispositions, stored damaged equipment, affected receiving leads and continuing load or removal restrictions; do not invent a successful structural review.
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.
Form Stripping: Verify the Release and Reshoring →Concrete Formwork: Verify Stability Before Placement →Manual Handling: Change the Lift Before You Lift →
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. Establish the multilevel removal release
Hazard: A slab may be unable to carry its own weight and current loads when a remaining support is removed, even after original forms are stripped.
Control: Support lead obtains the current engineered removal map, actual strength and loading basis and employer’s required determination. Match identified slabs, reshores and retained supports to the release, including affected levels above and below. Resolve revisions or incomplete evidence before touching a support; do not infer readiness from age or an earlier formwork handover.
Verification: Lead verifies identified stages and actual strength and loading release evidence.
Why this belongs in the analysis: Removing reshores changes the remaining structural load path.
2. Control loads, access and affected areas
Hazard: An unplanned pallet, delivery or worker in the removal area can change slab demand or expose people to falling components.
Control: Coordinate the actual loading hold with all affected floor leads and maintain the permitted load arrangement. Establish protected working access, component routes, required exclusions and observation positions under the removal method. Keep emergency access available and separate neighboring work that could disturb retained supports or the prescribed monitoring; verify changes before proceeding.
Verification: Lead checks affected-level load controls, access and monitoring responsibilities.
Why this belongs in the analysis: A release applies to the actual controlled load condition, not every later site arrangement.
3. Match removable and retained supports in the field
Hazard: A mistaken prop, damaged component or improvised tool can remove necessary support or expose the crew to an uncontrolled release.
Control: Crew traces the actual reshore map at the released stage and identifies each removable component and those that must remain. Check relevant equipment condition and obtain the selected system’s permitted unloading and handling method. Hold a discrepancy or damaged support for responsible assessment; marking alone does not authorize removal and no one pulls a loaded prop sideways to free it.
Verification: Assigned supervisor matches field support identities to the released stage map.
Why this belongs in the analysis: Positive identification prevents a planned removal from reaching an unreleased load path.
4. Unload and remove only the released stage
Hazard: Unexpected load, uncontrolled component movement or a change in slab response can trap workers and undermine the intended support transfer.
Control: Under the named stage release, trained crew follows the actual engineering sequence and selected equipment’s unloading method from protected positions. Control each freed component through its planned handling arrangement and keep retained supports undisturbed. Assigned observers monitor the prescribed indicators; stop for binding, unexpected movement or lost communication rather than forcing release or improvising a jack adjustment.
Verification: Supervisor confirms prescribed removal and observation findings at each hold point.
Why this belongs in the analysis: A planned transfer remains accountable while individual supports are disengaged.
5. Verify the retained arrangement before progressing
Hazard: Continuing removal after an incomplete stage or unnoticed loading change can compound an unresolved support condition across floors.
Control: Responsible personnel compare actual stage findings, retained supports and current loads with the engineered sequence before releasing the next identified stage. Keep discrepancies held and obtain the required engineering disposition. Maintain the agreed observation and access boundaries; absence of visible cracking is not a substitute for the required release evidence or authority.
Verification: Named stage authority records actual disposition before further supports are disturbed.
Why this belongs in the analysis: Every stage needs its own accepted remaining load path.
6. Store components and transfer structural restrictions
Hazard: Poorly stored props can fall or roll, and an unclear handover can allow later loads or removal of supports that were deliberately retained.
Control: Move removed components through the approved routes to stable storage, inspect and segregate damaged equipment and restore access only within the released condition. Record removed and retained support identities, actual stage decisions and unresolved issues. Transfer continuing loading, support and monitoring restrictions to affected floor leads; further load changes or support removal need their separate actual release.
Verification: Receiving leads confirm retained supports and continuing floor restrictions.
Why this belongs in the analysis: Completion of a removal stage does not release unrelated supports or construction loads.
Compare control wording
| Needs improvement | More useful for this scenario |
|---|---|
| The forms came off last week; remove the props. | Match the remaining reshores to actual slab-strength, multilevel-load and stage-removal release evidence. |
| No cracks appeared, so keep going. | Named personnel verify the required stage findings and retained support condition before releasing further removal. |
Common questions
Can this example be used as a JSA?
Adapt its Task | Hazard | Control analysis to the employer’s JSA format and actual task. Confirm assigned checks and record real findings before work.
What changes if the project requires an AHA?
Use the project’s governing AHA format, risk method, supporting records and acceptance process. The published formwork AHA illustrates additional structure; this example supplies no AHA risk rating or acceptance.
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 and reshore-removal requirements
- ACI PRC-347.2-17(25) Guide for Shoring/Reshoring of Concrete Multistory Buildings: current overview
- Doka Dokaflex S US user information: shoring and reshoring planning, July 2024
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. This example supplies no inspection findings or work authorization. Use actual equipment instructions and site requirements alongside these references. Reference review: October 12, 2026.
Developed by Todd Jerome Jenkins, MS, CSP · Edition v1.0 · October 13, 2026
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