Precast Concrete Installation — Safe Work Method Statement
Safe Work Method Statement for the delivery, handling, and installation of precast concrete elements including beams, columns, stairs, and wall panels, covering crane operations, rigging, and structural connection works.
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Precast concrete element installation is High Risk Construction Work under the model WHS Regulations due to both the crane operations involved and, in the case of wall panels, the same structural collapse risk that applies to tilt-up construction. A SWMS is mandatory before work commences, and a lift plan prepared by a structural engineer or competent crane planner is required for each element type. The crane operator must hold the appropriate High Risk Work Licence, and all rigging must be carried out by workers holding a Rigging (RB, RI, or RA) or Dogging (DG) HRWL appropriate to the lifting configuration.
Precast concrete elements arrive on site to a predetermined erection sequence that must not be varied without engineering approval. Beams, columns, and wall panels are interdependent — installing elements out of sequence can result in an unstable partially-erected structure. The structural engineer's erection methodology and temporary propping requirements must be followed precisely. Precast prestressed concrete beams in particular must be oriented and supported exactly as specified, as they are designed for loads in one direction and can fail suddenly if inverted or loaded transversely.
The receiving surface — pad footings, columns, or bearing ledges — must be inspected before each element is landed to confirm it has achieved the required strength and the bearing surface is clean and level. Structural connections including bolted moment connections, grouted joints, and welded plates must be completed by competent workers and inspected before the element is released from the crane. For multi-storey precast structures, no floor above must be loaded until the connections below have been completed and the engineer has confirmed the structure is stable.
Customise this template with the precast element schedule, the structural engineer's erection methodology, the crane lift plan references, the temporary propping design, and the connection inspection checklists. Record the workers' HRWL numbers for rigging and crane operation.
This SWMS applies in all Australian jurisdictions. Victoria uses OHS Regulations 2017 with equivalent requirements.
Personal Protective Equipment
High Risk Construction Work Types
- •Work involving risk of a person falling more than 2 metres
- •Work involving the use of a crane, hoist or other powered lifting device
- •Formwork or falsework
Risk Assessment
1.Precast Element Delivery and Unloading
| Hazard / Risk | Initial Risk | Control Measures | Residual Risk | Responsibility |
|---|---|---|---|---|
| Element topple from delivery vehicle during unloading | Catastrophic | Deliveries must be pre-planned with the crane operator and licensed rigger to confirm element weights, rigging method, and vehicle positioning before the truck arrives. The delivery area must be level, firm, and capable of supporting the combined vehicle and load weight. Unloading sequence must be coordinated so that remaining elements on the vehicle remain stable after each lift. Rigger confirms all elements have dedicated lift points before unloading commences. | Low | Rigger / Crane Operator / Site Supervisor |
| Struck by swinging precast element during crane unloading | Catastrophic | Establish an exclusion zone equal to the maximum swing radius of the crane plus the longest element dimension. Control access using barriers and a banksman. Only the rigger/dogman may be within the exclusion zone during lifts. Workers not involved in the lift must remain in a designated safe zone. Use two tag lines on all elements to prevent uncontrolled swinging. | Moderate | Dogman / Crane Operator / Site Supervisor |
2.Rigging and Lifting Precast Elements
| Hazard / Risk | Initial Risk | Control Measures | Residual Risk | Responsibility |
|---|---|---|---|---|
| Rigging failure due to incorrect sling selection or damaged hardware | Catastrophic | All rigging equipment must be inspected by the licensed rigger before each lift. Discard any sling, shackle, or connector showing cuts, abrasion, kinking, corrosion, or deformation. Confirm WLL markings on every component match or exceed the load. Rigging arrangement must be per the precast manufacturer's lift drawing or engineer-certified rigging plan. Record pre-lift inspection in the crane lift register. | Low | Licensed Rigger |
3.Element Placement and Alignment
| Hazard / Risk | Initial Risk | Control Measures | Residual Risk | Responsibility |
|---|---|---|---|---|
| Workers hands or feet crushed between element and supporting structure | High | Workers must never place hands or feet between a suspended precast element and its bearing surface. Use remote guidance tools (guide bars, rope guides) or sacrificial timber blocks to align elements without direct body contact. Crane operator to lower elements slowly (maximum 0.3 m/s) when within 500 mm of bearing. Workers signal 'stop' via radio/hand signal to crane operator if alignment requires adjustment; crane holds position while workers reposition with guide bars only. | Low | Rigger / Crane Operator / All Workers |
| Element slipping off bearing due to inadequate bearing area | Catastrophic | Confirm bearing width and length against the structural engineer's drawings before releasing from crane. Minimum bearing must be achieved on all support points simultaneously before the crane releases load. If minimum bearing is not achieved on first placement, re-lift the element and adjust the supporting structure or temporary packing. Do not use timber wedges as sole permanent bearing without engineer approval. | Low | Site Engineer / Rigger |
4.Structural Connections and Grouting
| Hazard / Risk | Initial Risk | Control Measures | Residual Risk | Responsibility |
|---|---|---|---|---|
| Chemical burns from cementitious grout or epoxy resin contact | Moderate | Workers handling grout or epoxy wear chemical-resistant gloves, safety glasses, and long sleeves. Review SDS for grout products before commencement. In the event of skin contact, flush with water for 15 minutes. Eye contact with grout requires immediate flushing with copious water for 20 minutes and medical assessment. Provide eyewash station within 10 metres of all grouting operations. | Low | All Workers / Site Supervisor |
5.Working at Height During Installation
| Hazard / Risk | Initial Risk | Control Measures | Residual Risk | Responsibility |
|---|---|---|---|---|
| Falls from height when installing connections on elevated elements | Catastrophic | Where workers must access the top of precast columns or beams above 2 m, an engineered work platform (EWP, scaffolding, or MEWP) must be provided. Workers must not free-climb precast elements. If temporary platform cannot be provided, workers must wear a full-body harness attached to a certified anchor point on the element or structure. Anchor must be rated to AS/NZS 1891.4 and inspected by the site supervisor before use. Edge protection must be installed on all decks as soon as the first elements are placed. | Moderate | Site Supervisor / All Workers |
Relevant Codes of Practice
Worker Acknowledgement
By signing below, I confirm that I have read, understood and agree to comply with this Safe Work Method Statement.