Controlling the crane work zone is non-negotiable. When swing radius, load paths, and access aren’t controlled, incident risk climbs fast.

Most common crane-related incidents:

• Struck by counterweight (swing radius)
• Struck by suspended load
• Equipment-to-equipment contact
• Unauthorized entry into lift zone
• Vehicles entering crane setup area
• Loss of load control due to congestion or poor conditions

Barricades and warning devices are what keep people out of harm’s way.

Barricades

• Fence-type: Use for swing radius and primary lift zone (keep people out—no exceptions)
• Horse-type: Use for secondary boundaries and staging areas
• Must be visible, properly placed, and maintained at all times

Signage

Post clear, direct warnings at all access points:

• Danger – Swing Radius
• No Entry – Crane Operating Area
• Overhead Load Hazard
• Authorized Personnel Only

Signal Persons / Spotters

• Maintain clear communication with operator
• Monitor load path and personnel movement
• Keep unauthorized personnel out
• Never stand in the load path
• Coordinate when multiple spotters are used

Bottom Line

If the crane zone isn’t controlled, the lift isn’t safe. Set the boundaries, enforce them, and don’t rely on luck.

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