Checklist for Confined Spaces in Construction

Confined spaces are not always recognized, nor are the related hazards easily addressed. Confined spaces can be particularly dangerous if the proper precautions are not followed. Safeguards to protect against loss include:

• Locate and evaluate the types of confined spaces on the project
  • Excavations and trenches
  • Manholes and condenser pits
  • Pipe assemblies
  • Ventilation ducts
  • Tanks and containment cavities
  • Electrical transformers
  • Sumps and heat sinks
  • Underground vaults
• Identify the hazards associated with confined spaces (inherent and induced)
  • Confined spaces within a confined space
  • One space entering another space
  • Communication and lighting problems
  • Entry and exit
  • Thermal effects
  • Oxygen-deficient atmospheres
  • Explosive or toxic gases, vapors or fumes
  • Biological hazards
  • Falling materials
  • Noise
• Conduct a job hazard assessment with detailed planning procedures.
• Determine if the confined spaces are permit-required confined spaces.
• Identify OSHA requirements for permit-required and high-hazard confined spaces.
• Identify required personal protection equipment and provide training in their use.
• Conduct frequent refresher training on safety procedures.
• Appoint attendants and rescue personnel.
• Establish emergency procedures.

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