Dump Truck Operation and Raised-Bed Hazards

• Workers or pedestrians struck in the truck's blind spots or backing path
• Truck tip-over while dumping on uneven, soft, sloped, or unstable ground
• Raised bed contacting overhead power lines, bridges, trees, or structures
• Workers crushed beneath a raised bed or caught at the tailgate
• Material releasing, shifting, bridging, or striking workers unexpectedly
• Driving away with the bed raised or tailgate and load unsecured

Dump trucks are used for soil, asphalt, aggregate, snow, brush, debris, and many other municipal materials. The operator should inspect the vehicle, bed, hoist, tailgate, tires, alarms, cameras, mirrors, lights, and load condition before moving.

Blind spots around a dump truck can hide workers, vehicles, utility structures, and the public. Backing should be minimized, the path should be checked, and an agreed spotter method should be used when the operator cannot verify the area is clear.

The dump location should be assessed for slope, soft ground, shoulder condition, underground voids, overhead clearance, traffic, and room to pull away. A surface that supports the truck while loaded may shift as the bed rises and the center of gravity changes.

The bed should be raised only when the truck is positioned according to the operating procedure. The operator should stop if the load hangs to one side, the truck leans, the tires sink, or material does not release evenly.

Overhead power lines, signal cables, bridges, doors, tree limbs, and other obstructions must be identified before raising the bed. The truck should not move with the bed elevated except as specifically allowed by the equipment and site procedure.

No one should stand behind the tailgate, beside a shifting load, or beneath a raised bed. A raised bed should be supported by the manufacturer's approved body prop or blocking before inspection, cleaning, or maintenance requires exposure beneath it.

Frozen, wet, packed, or irregular material may bridge and release suddenly. Workers should not strike, climb into, or reach into the bed while it is raised or while the load can move unexpectedly.

Before travel resumes, the operator should confirm that the bed is fully lowered, the tailgate is secured, the load is contained, and the route is clear. Warning indicators should never be ignored or treated as routine.

• Inspect the truck, hoist, bed, tailgate, alarms, and load.
• Minimize backing and keep workers out of blind spots.
• Dump only on ground that is stable and suitably level.
• Check overhead clearance before raising the bed.
• Stay clear of the tailgate and shifting material.
• Use approved body props before working beneath a raised bed.
• Verify the bed is fully lowered before driving away.

• Is the dump location level, stable, and clear overhead?
• How will backing and worker location be controlled?
• Could the load bridge, shift, or release unevenly?
• What support is required before anyone works beneath the bed?
• Who will verify the bed and tailgate before the truck moves?