Confined spaces should be clearly marked and physically protected from accidental or unauthorized entry.
Why It Matters:
Verbal warnings aren’t enough. Clear signage and physical barriers are critical to alerting others and preventing dangerous mistakes — especially on busy sites where multiple crews are working simultaneously.
Key Points:
- Post warning signs like “DANGER – PERMIT-REQUIRED CONFINED SPACE – DO NOT ENTER” at all access points.
- Use barriers such as cones, caution tape, or fencing to block openings.
- Cover manholes or vaults when not actively in use.
- Make signage visible from multiple directions and ensure it’s in languages understood by the crew.
✅ Signage + physical barriers = visual and physical deterrents to unsafe entry.
Ask the Crew:
- Are all confined space areas clearly marked and blocked off?
- What would someone see if they approached an active confined space on our site today?