Hold-Down / Cast-In Anchor Installation SWMS

Hold-down and cast-in anchor installation is the structural interface between concrete substructure and steel superstructure, demanding millimetre-accurate template setting, verified embedment depth and load-rated lifting plate handling before concrete pour. The work occurs in the critical window between formwork completion and pour commencement, exposing workers to falls into open formwork, manual handling injuries from heavy anchor assemblies, and the latent risk of structural failure if anchors are misaligned or under-embedded. Under WHS Regulation 2011 r291 and the harmonised state equivalents, this scope constitutes High Risk Construction Work because it is a pre-pour activity directly governing structural load transfer at column bases. A Safe Work Method Statement is mandatory before work commences, must be developed in consultation with workers performing the task, and must be available for inspection by the regulator and principal contractor throughout the activity. This SWMS template documents the hazard profile, control hierarchy, verification holds and sign-on requirements specific to hold-down bolt and cast-in anchor systems.

Hazards identified

7 hazards covered, sorted by priority.

Control measures

Hierarchy-of-controls order: elimination → substitution → isolation → engineering → administrative → PPE.

1. 1Elimination — Eliminate manual template positioning by specifying prefabricated welded anchor cages delivered to site as single lift-in assemblies, removing on-deck assembly above open formwork.
2. 2Elimination — Eliminate worker presence inside formwork during anchor lowering by using remote-release shackles and tagline guidance from edge protection platforms.
3. 3Substitution — Substitute heavy steel template jigs with lightweight engineered polymer or aluminium templates rated for the anchor pattern, reducing manual handling load by up to 60%.
4. 4Substitution — Substitute conventional threaded rod with proprietary cast-in anchor systems incorporating integral lifting eyes, eliminating separate lifting plate attachment.
5. 5Engineering — Install proprietary edge protection and formwork-edge handrails compliant with AS/NZS 4994.1 around all pier tops before anchor delivery; provide solid working platforms spanning open piers.
6. 6Engineering — Use surveyed template setting with total station verification of X, Y and Z coordinates against shop drawings, with embedment depth marked on each anchor and confirmed by independent check.
7. 7Administrative — Implement a pre-pour anchor verification hold point requiring sign-off by site engineer, surveyor and steel subcontractor before concrete is released, recorded on ITP.
8. 8Administrative — Conduct pre-start briefing using this SWMS, confirm lift plan and exclusion zone for crane lift-in, and verify all workers hold current construction induction (white card) and crane dogger competency where applicable.
9. 9PPE — Issue cut-resistant gloves (EN 388 Level C minimum), safety glasses to AS/NZS 1337.1, steel-capped boots to AS/NZS 2210.3, and high-visibility long-sleeve clothing to AS/NZS 4602.1.
10. 10PPE — Provide chemical-splash goggles and alkaline-resistant nitrile gauntlets for workers performing final anchor adjustments during concrete placement, plus barrier cream to exposed forearms.

Applicable Codes of Practice

High-Risk Construction Work triggered

Worked example

On a four-storey commercial frame project, the steel subcontractor's leading hand opens the day with a pre-start briefing using this SWMS at the site shed. The crew of three is installing twelve hold-down anchor templates at column bases above 1.8 m deep pad footings, with pour scheduled for the following morning. Working through the hazard register, the leading hand identifies that two pier locations sit adjacent to an unprotected excavation edge — the SWMS Engineering control triggers installation of temporary handrails to AS/NZS 4994.1 before any worker approaches. The Substitution control prompts the crew to swap the steel jig for the lighter aluminium template kept on site, reducing two-person lifts to single-person handling. During sign-on, a new labour-hire worker discloses he holds no dogger ticket; the leading hand reassigns him to ground-level template preparation and removes him from the crane lift-in task, documenting the change on the SWMS sign-on sheet. Mid-morning, the surveyor flags one template reading 6 mm out of tolerance on the Y-axis. The crew references the pre-pour verification hold point in the SWMS, stops work, and the site engineer is called to authorise re-set before concrete is released. The amended position is re-surveyed and signed off on the ITP. The SWMS sign-on sheet, marked-up controls and verification record are filed with the principal contractor's HRCW register that afternoon.

Related legislation

• WHS Act 2011 (model)
• WHS Regulation 2025
• Code of Practice — Hazardous Manual Tasks

Frequently asked questions