Scaffolding and fall protection: The climb shouldn’t be your downfall
Falls as the leading cause death in construction seems to be continuing its trend for 2023. The death of three construction workers in Charlotte, North Carolina, on January 2nd emphasizes why OSHA requires employers to focus on fall prevention in the workplace. Preventing falls from collapsed scaffolding requires far more than fall protection alone.
The three construction workers fell 70 feet to their death after the scaffolding they were using collapsed beneath them. The wall next to where they were working also collapsed onto them. Sadly, this incident only adds to OSHA’s list of nearly 30 accidents involving collapsed scaffolding in 2022. This incident is still under investigation but should motivate employers to review their scaffolding and fall protection procedures and training.
Common scaffolding hazards
The most common hazards associated with scaffolding are:
- Collapse of the scaffold due to instability or overloading.
- Falls to a lower level due to a lack of or insufficient fall protection.
- Electrocution due to scaffolding placed near overhead power lines.
- Being struck by falling tools, work materials, or debris.
Whether using a suspended scaffold or supported scaffold, worker safety is reliant on proper:
- Training — OSHA requires employers to provide training by a competent person to each employee who is involved in erecting and/or disassembling a scaffold. A competent person can identify existing and predictable hazards and has authorization to take prompt corrective measures to eliminate the hazards. Workers using scaffolding must also be trained on hazards and control measures implemented to protect them from the hazards.
- Scaffold selection — Each scaffold and scaffold component must be capable of supporting, without failure, its own weight and at least 4 times the maximum intended load applied or transmitted to it.
- Scaffold construction — Scaffolds must be designed by a qualified person and be constructed and loaded in accordance with that design. A qualified person is one who possesses a recognized degree, certificate, or professional standing, or has extensive knowledge, training, and experience demonstrating the ability to solve or resolve problems relating to the subject matter, the work, or the project. Scaffolds must be constructed according to manufacturer’s instructions.
- Planning — A qualified person must do adequate preplanning to ensure the safe erection and use of the scaffold. Preplanning includes consideration of proper type of scaffolding, maximum load capacities, firm foundations, and avoiding electrical hazards.
- Scaffold inspection — Before each work shift, a competent person must inspect scaffolds and their components for visible defects. An inspection also is required after any occurrence which could affect a scaffold’s structural integrity. Any damaged or weakened scaffold parts must be immediately repaired or replaced, braced to meet the regulation’s provisions, or removed from service until repaired.
- Fall protection — Each employee on a scaffold more than 10 feet above a lower level must be protected from falling.
- Falling object protection — Workers must be protected from falling hand tools, debris, or other small objects by requiring hard hats be worn and installing toesboards, screens, nets, or similar protective measures.
Proper scaffolding inspections
With environmental constraints and limited space, using scaffolding is challenging for even the most experienced construction worker. The best means of protection is ensuring scaffolding is safe to use. Scaffolding must be inspected by a competent person to ensure at a minimum:
- All scaffolding and associated components are free of damage, excessive debris, corrosion, or deformities (abrasion, kinks, knots, stretch, or flattening).
- Scaffolds aren’t erected, used, dismantled, altered, or moved such that they or any conductive material handled on them might come closer to exposed and energized power lines.
- Guardrails have been installed along all open sides and platform ends.
- Scaffold footings are stable, level, sound, rigid, and capable of supporting the loaded scaffold without settling or displacement.
- Scaffolds are fully planked or decked between the front uprights and the guardrail supports.
- Platforms and walkways are of appropriate width for the type of scaffolding being used.
- Platform ends, unless cleated or otherwise restrained, extend over the centerline of its support at least 6 inches, and don’t extend too far beyond supports.
- Planks used to extend platforms have been overlapped properly.
- Scaffold components manufactured by different manufacturers haven’t been intermixed unless the components fit together without force and the scaffold’s structural integrity is maintained.
- Supported scaffolds with a height to base width (including outrigger supports, if used) ratio of more than four-to-one (4:1) have been restrained from tipping by guying, tying, bracing, or equivalent means.
- Suspended scaffolds are properly supported by counterweights, outrigging, tiebacks, and bearing blocks.
- Safe access has been provided for workers using scaffolding.
- Workers are prohibited from using cross-bracing as a means of access to platforms.
- Scaffolding is kept clear of snow, ice, debris, and non-essential tools and equipment.
- Personal fall arrest systems or other appropriate fall protection has been inspected before use and is being worn and used properly. Personal fall arrest systems used on scaffolds must be properly attached by lanyard to a vertical lifeline, horizontal lifeline, or scaffold structural member. (NOTE: Vertical lifelines shouldn’t be used when overhead components are part of a single-point or two-point adjustable suspension scaffold.)
- Proper falling object protection has been implemented.
Keys to remember
Ensuring protection for workers using scaffolding is far more than just providing fall protection. Employers must ensure scaffolding is selected, inspected, and used properly to protect workers from potentially fatal falls or other injuries.