Seawall / Foreshore Construction SWMS
SWMS template for seawall / foreshore construction. Covers Rock / concrete seawall, foreshore works.. 8-state AU coverage, CIH-reviewed editable DOCX, available as an instant download.
SWMS variants reference your state’s WHS legislation. Instant download after payment.
Seawall and foreshore construction involves placing armour rock, precast concrete units, or cast in-situ concrete walls along tidal interfaces to protect coastal land from erosion and storm surge. The work combines heavy earthmoving plant operating on unstable batters with manual rigging of multi-tonne armour units, all sequenced around tidal windows that compress shift planning and elevate fatigue risk. Because crews work adjacent to or within tidal water, on partially completed structures more than 2 metres above the substrate, and alongside mobile plant in confined foreshore corridors, the work triggers multiple High Risk Construction Work categories under WHS Regulation 2025 r291. A documented Safe Work Method Statement is mandatory before work commences, must be developed in consultation with workers under s47, kept accessible on site, and reviewed whenever tidal conditions, plant configuration, or rock supply sequencing changes. This SWMS provides the controls, sign-on register, and review triggers required to discharge the PCBU's primary duty of care under s19.
Hazards identified
7 hazards covered, sorted by priority.
Drowning, hypothermia, blunt trauma from being driven against armour units; coronial inquest and Cat 1 prosecution exposure
Operator crush fatality, plant submersion, hydrocarbon release into marine environment triggering EPA notification
Fatal crush injury from dropped load, fractured limbs from swinging rock, rigging failure under shock loading
Lumbar disc injury, slip-trip falls into voids between armour, long-term musculoskeletal disability claims
Ankle fractures, falls between primary armour voids up to 1.5 m deep, entrapment below rising tide
Chemical burns, dermatitis, alkaline eye injury; cement washout contaminating marine waters
Struck-by incidents, mis-slew of load over personnel, breakdown of exclusion zone discipline
Control measures
Hierarchy-of-controls order: elimination → substitution → isolation → engineering → administrative → PPE.
- 1Elimination — Sequence armour placement from landward bench so workers never stand seaward of the active placement face or within the tidal inundation envelope at any stage.
- 2Elimination — Suspend all foreshore works during forecast significant wave height above 1.0 m or wind above 40 km/h using a documented stop-work trigger card.
- 3Substitution — Replace manual rock pinning with mechanical orange-peel grab or hydraulic rock grapple to remove hand-guided placement of armour units over 500 kg.
- 4Substitution — Use precast concrete armour units (Hanbar, Xbloc) with engineered lifting points instead of irregular quarry rock where design permits, eliminating sling slip hazards.
- 5Engineering — Install ROPS/FOPS-certified amphibious excavators with sealed cabins, marine-grade hydraulics, and load moment indicators set to 75% SWL for over-water reach.
- 6Engineering — Construct compacted rock-armoured working platform certified by a geotechnical engineer to AS 3798 with documented bearing capacity exceeding plant ground pressure by 1.5×.
- 7Administrative — Issue tidal window work permits referencing Bureau of Meteorology tide and swell forecasts, with a nominated tide watcher equipped with marine VHF and air horn.
- 8Administrative — Conduct pre-start brief against this SWMS, confirm exclusion zones (1.5× boom radius), verify dogger/operator radio channel, and capture sign-on before any plant start-up.
- 9PPE — Issue AS 4758 Level 100 inherently buoyant PFDs to all personnel within 3 m of the water edge, with crotch straps and integrated whistle and strobe.
- 10PPE — Require AS/NZS 2210.3 marine-grade safety boots with metatarsal guards, AS/NZS 1801 hard hats with chin straps, cut-5 gloves, and AS/NZS 1337 sealed eye protection during concrete works.
Applicable Codes of Practice
Governs compaction testing and certification of the rock-armoured working platform supporting excavators and rock trucks within the tidal zone.
Mandates lift studies, exclusion zones, and dogger competency for suspended armour rock placement using excavator-mounted lifting attachments.
Specifies SWMS content, consultation, and review obligations for HRCW including work near water and adjacent to mobile plant on foreshore sites.
Sets PFD performance level (Level 100 minimum) required for workers operating within fall-to-water exposure during foreshore construction.
High-Risk Construction Work triggered
Crews place armour and inspect toe-courses within the tidal inundation envelope where rising water and swell create an immediate drowning risk.
Doggers, surveyors, and concreters work within the slewing and travel envelope of excavators, rock trucks, and rollers placing and trimming armour material.
Handling geotextile rolls, rigging chains, and stone bedding on unstable tidal mud creates repetitive awkward-posture loading triggering the HRCW manual handling criterion.
PCBU must prepare, consult workers on, and retain this SWMS for the project duration plus 2 years; breaches attract Category 1–3 penalties, substantial and indexed; current maximum follows the prevailing WHS schedule.
Who this is for
- →Marine civil contractors delivering coastal protection works
- →Local council foreshore renewal project managers
- →Port authority maintenance and revetment crews
- →Geotechnical and rock-armour subcontractor site supervisors
What you receive
- ✓Editable DOCX template — Microsoft Word compatible
- ✓State-specific WHS legislation schedule (NSW/VIC/QLD/SA/WA/TAS/NT/ACT)
- ✓Hazard register with risk ratings + hierarchy-of-control mapping
- ✓Worker sign-on register, pre-start checklist, and incident escalation flow
Worked example
On a regional council foreshore renewal project, a site supervisor opens this SWMS at the 6:15 am pre-start brief, 90 minutes before the morning low tide window of 07:45. The crew of six — excavator operator, dogger, two rock-placement labourers, surveyor, and tide watcher — gather on the landward bench. The supervisor walks through the seven hazards on the SWMS, pausing on tidal sweep risk because the Bureau forecast shows a 1.2 m residual swell from an overnight low. Referencing the stop-work trigger on control point 2, the team agrees to limit placement to the upper berm only and defer toe-course inspection until the next neap cycle. Exclusion zones are paced out at 12 m (1.5× the 8 m boom radius), the dogger confirms VHF channel 8 with the operator, and Level 100 PFDs are fitted and buddy-checked. Each worker signs the SWMS register. Two hours into the shift, swell builds unexpectedly to 1.4 m; the tide watcher sounds the air horn, the operator parks the excavator on the landward bench, and the crew retreats. The supervisor annotates the SWMS review log, records the trigger event, and reschedules toe works — demonstrating the SWMS functioning as a live field control document, not a filed compliance artefact.
Related legislation
- WHS Act 2011 (model)
- WHS Regulation 2025
- AS 2550 — Cranes, hoists and winches; AS 1418 series