Vital safety information (height of vehicle) found incorrect

  • Safety Flash
  • Published on 27 November 2024
  • Generated on 9 March 2026
  • IMCA SF 23/24
  • 2 minute read

“Height of vehicle” information displayed on a truck, was found to be incorrect.

What happened?

An IMCA member’s contractor in the United States reports an incident in which it was discovered that the “height of vehicle” information displayed on a truck, was found to be incorrect. A worker was moving a light industrial vehicle (a “bucket truck” with a bucket on a folding hydraulic arm) when the correctly stowed folding arm came into contact with an overhead structure. There was no damage.

Truck height
Measuring truck height

What went wrong?

On investigation, it was found that the stamped traveling height on the truck was different from the actual traveling height. The actual traveling height was verified by careful measurement.  The truck was stamped with a traveling height of 9 feet and 10 inches (300 cm) but the actual measured traveling height was found to be 10 feet 1 inch (307cm). 


Subsequently all similar vehicles in the fleet were measured and it was discovered that three out of four trucks measured also had incorrect stamped traveling height.

Recommendations

  • Whilst this incident is about vehicles, the principle applies not only to all industrial vehicles and sometimes private cars, but in general to safety information that we may have assumed for years is correct.
  • Consider checking height of vehicle information in industrial vehicles, overhead clearances and other measurements;
  • Consider checking how up to date are any printed manuals or instructions you have.

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