Safe Work Method Statement for Underwater Diving Operations on Construction Sites

Diving

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Diving operations on construction sites involve underwater work with specialized hazards including pressure changes, underwater currents, and limited visibility. This SWMS covers dive planning, decompression procedures, and emergency response protocols. The document addresses Australian WHS requirements for commercial diving operations and occupational diving safety.

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Overview

What this SWMS covers

Construction diving involves high-pressure underwater work with risks of decompression sickness and drowning. This SWMS covers dive planning, qualified personnel, and emergency protocols for safe underwater operations.

Fully editable, audit-ready, and aligned to Australian WHS standards.

Why this SWMS matters

Diving accidents can cause severe injury or death from pressure-related issues. Construction sites require specialized diving procedures for underwater inspections, welding, and salvage work.

Reinforce licensing, insurance, and regulator expectations for Diving Safe Work Method Statement crews before they mobilise.

Hazard identification

Surface the critical risks tied to this work scope and communicate them to every worker.

Risk register

High

Inadequate decompression causing nitrogen bubble formation.

High

Pressure injuries to lungs or equipment failure.

High

Currents, poor visibility, structures, or marine life.

High

Malfunction of diving equipment or breathing systems.

Medium

Cold water exposure affecting diver function.

Control measures

Deploy layered controls aligned to the hierarchy of hazard management.

Implementation guide

Use ROVs or non-diving methods to eliminate diving hazards.

Implementation

Deploy ROVs, use sonar, implement dewatering.

Implement engineered systems with safety features.

Implementation

Surface-supplied air, dive platforms, redundant systems.

Provide rescue and emergency support equipment.

Implementation

Hyperbaric chambers, rescue bells, emergency gas supplies.

Establish comprehensive dive planning and procedures.

Implementation

Dive plans, qualified supervisors, medical assessments.

Provide certified diving equipment and protective gear.

Implementation

Approved helmets, BCDs, thermal protection, dive computers.

Personal protective equipment

Requirement: Pressure-tested with communications

When:

Requirement: BCD with power inflator

When:

Requirement: Dry or wet suit for conditions

When:

Inspections & checks

Before work starts

  • Conduct diver medical assessments
  • Verify equipment certification
  • Check gas quality and pressures
  • Confirm hyperbaric chamber access

During work

  • Monitor depth, time, gas consumption
  • Check communication systems
  • Verify decompression adherence
  • Monitor diver condition

After work

  • Conduct post-dive medical assessment
  • Inspect equipment for damage
  • Document dive profiles
  • Conduct debrief session

Step-by-step work procedure

Give supervisors and crews a clear, auditable sequence for the task.

Field ready

Dive Planning and Risk Assessment

Conduct comprehensive planning and risk assessment.

Safety considerations

Never dive without qualified supervision

Equipment Setup and Pre-Dive Checks

Set up and inspect all diving equipment.

Safety considerations

Never use untested equipment

Dive Execution and Monitoring

Execute dive with continuous monitoring.

Safety considerations

Strict adherence to dive profile

Ascent and Decompression

Execute controlled ascent with decompression.

Safety considerations

Never skip decompression stops

Post-Dive Procedures and Debrief

Complete medical assessment and debrief.

Safety considerations

Monitor for delayed DCS symptoms

Frequently asked questions

What qualifications for construction diving?

Commercial diver certifications (ADAS, HSE Part IV) required.

Dive time limits for different depths?

Depends on depth and gas mixture; max 30-40m for air diving.

Signs of decompression sickness?

Begin 100% oxygen, contact emergency services, transport to chamber.

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Why It Matters

Construction diving involves working in high-pressure underwater environments with risks of decompression sickness, drowning, and equipment failure. Construction sites may require diving for foundation inspections, underwater welding, or salvage operations. Without proper procedures, diving accidents can result in severe injury or death. This SWMS ensures comprehensive dive planning, qualified personnel, and emergency protocols to protect divers working in construction-related underwater operations.

Hazard Identification

Diving operations present several critical hazards requiring specialized control measures.

Control Measures

Control measures follow the hierarchy of controls, prioritizing elimination and engineering solutions before administrative and PPE measures.

PPE Requirements

Personal protective equipment is critical for diving operations and must meet specific standards.

Inspections & Checks

Regular inspections and checks are essential for maintaining diving safety.

Step-by-Step Work Procedure

Follow these systematic procedures for safe diving operations.

FAQ

Common questions about diving safety on construction sites.

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Risk Rating

BeforeHigh
After ControlsLow

Key Controls

  • • Pre-start briefing covering hazards
  • • PPE: hard hats, eye protection, gloves
  • • Emergency plan communicated to crew

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