By Robert M. Hontz, Jr.
Mobile crane safety is an important aspect of overall construction safety as evidenced by the recently issued OSHA regulations in 29 CFR 1926.1400, Subpart CC – Cranes and Derricks in Construction. Listed below are ten ways to improve crane safety on your site.
Developed by company management, this describes the overarching structure of your crane safety program, e.g., objectives, roles and responsibilities, assigns human and financial resources for the various elements, provides documented procedures, etc.
This should be based on the risks involved, not merely the weight of the load. Ask yourself, “Which is more risky: 1) a 50 ton load being lifted at 95% of the crane’s rated capacity or, 2) a 500 ton load lifted at 50% of the crane’s rated capacity?”
Three or four levels of classification ranging from Critical to Standard are probably about right to capture the spectrum of risks. A Risk Matrix may be helpful in this regard.
Lift planning, at its most basic level, is identifying risks, hazards and vulnerabilities and developing steps, actions, and strategies to mitigate them. Critical lifts will require drawings and review by others, whereas the documentation for a standard lift will require recording the rated capacity of the crane in the proposed configuration and the weight of the load.
The Lift Director directly oversees the work done by the crane and rigging personnel and should, among others, review all written lift plans.
National codes and standards are proscriptive regarding inspections and the records to be kept. Investigate the inspection status of all equipment as it comes onto the site.
In the not too distant future, national codes and standards will require all operators, riggers, and signal persons to be qualified or certified. Certification testing is widespread and is conducted nationally by several accredited testing organizations. The most popular, perhaps, is the National Commission for the Certification of Crane Operators, NCCCO (aka CCO).
Don’t wait until the last minute to wonder who the safest local crane supplier is. Spend some time before you need a crane to check out safety records, experience level of operators, condition of equipment, etc.
These activities are not required for every crane or for every lift, but when required, they are hazardous activities and have resulted in many accidents. OSHA standards now cover these activities; be sure to comply.
There are still some operators who think they know when a crane can take an overload and not fail. A crane may not fail during an overload, but hidden damage is likely which will cause a failure in the future during normal operations.