Excavation SWMS Template
Safe Work Method Statement for trenching, excavation, and earthworks on construction sites
What This SWMS Covers
This SWMS covers excavation work including open excavation, trenching, boring/tunnelling, pier holes, basement excavation, bulk earthworks, and any work involving excavation to a depth greater than 1.5 metres. Excavation deeper than 1.5m is classified as HRCW under WHS Regulation Schedule 1. This SWMS addresses the life-threatening risks of trench collapse, underground service strikes, and plant-person interaction.
Who Needs This SWMS
Excavation contractors, civil contractors, plumbers (drainage trenching), electricians (underground services), principal contractors managing excavation work
Key Hazards & Control Measures
| Hazard | Risk Level | Control Measures | Hierarchy |
|---|---|---|---|
| Trench/excavation collapse | Fatal | Shoring, shielding, or battering for depths >1.5m, geotechnical assessment for unstable ground, competent person inspection daily and after rain, no workers in unshored trench | Engineering |
| Underground service strikes (gas, electrical, water, telco) | Fatal | DBYD enquiry (mandatory), potholing to expose services, hand-dig within tolerance zone, cable/pipe locator, service plans on-site | Administrative / Engineering |
| Overhead powerline contact (excavator boom) | Fatal | Safe approach distances per AS/NZS 4576, spotter when working near OHPLs, consider de-energisation or insulated barriers, trigger action response plan | Administrative / Engineering |
| Falls into excavation | Fatal | Barricading/fencing around open excavations, edge protection, signage, adequate lighting for night work, covers over small openings | Engineering / Administrative |
| Flooding/water ingress | Serious | Dewatering pumps, monitoring weather forecasts, competent person assessment after heavy rain, battered slopes to prevent washout | Engineering / Administrative |
| Hazardous atmospheres (contaminated ground) | Critical | Site contamination assessment, atmospheric monitoring before confined space entry, ventilation if working in deep excavations | Administrative / Engineering |
| Plant-person interaction | Fatal | Exclusion zones around operating plant, spotters for reversing, no workers in swing radius of excavator, traffic management plan | Administrative |
| Falling objects into trench | Serious | Materials stored >1m from trench edge, spoil placed away from edge, mesh/covers over trench during breaks, hard hats in trench | Administrative / PPE |
| Manual handling (shoring, trench boxes) | Moderate | Mechanical installation of shoring (excavator-placed), prefabricated trench shields, team lifts only where mechanical not feasible | Engineering |
| Noise and vibration (plant) | Moderate | Hearing protection near plant, vibration assessment for hand-held tools, low-vibration attachments where available | PPE / Substitution |
PPE Requirements
Frequently Asked Questions
Build Your Excavation SWMS Now
Pre-filled hazards and controls for excavation work. Preview free, export when ready.