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OSHA’s 4 Fatal Construction Accidents

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Last Modified on May 18, 2026
Despite safety advancements, the construction industry remains highly hazardous, with roughly one in five workplace fatalities occurring on a construction site. According to the Occupational Safety and Health Administration (OSHA), over half of all construction worker deaths are caused by the “Fatal Four” preventable hazards: falls, struck-by-object accidents, electrocutions, and caught-in/between incidents. Employers are legally obligated to mitigate these risks by providing proper safety equipment, regular training, and secure scaffolding.

The Occupational and Health Administration (OSHA) has operated under a single mission statement since its inception on April 28, 1971: “to assure safe and healthful working conditions for working men and women by setting and enforcing standards and providing training, outreach, education and assistance.” In the last 48 years, the workplace fatality rate has dropped 62%, and occupational injury and illness fatality rates have been reduced by 42%. However, there is one industry that remains dangerous despite OSHA’s efforts: the construction industry.

There are over 4,500 worker fatalities in the United States each year. Construction workers represent approximately 20.7% of this statistic, with 1 out of 5 workplace fatalities taking place at a construction site. The top four causes of fatal – and preventable – construction accidents are known as the “fatal four” for their high rate of incidence; in fact, the fatal four were responsible for 60% of all construction worker deaths in 2017.

Key Takeaways

  • The Fatal Four: Four specific hazards—falls, struck-by objects, electrocutions, and caught-in/between incidents—account for the majority of construction worker fatalities.

  • Falls Lead Fatalities: Falls from heights remain the single most common cause of construction deaths, making up nearly 40% of the industry’s annual fatalities.

  • Struck-by Hazards: Objects dropped from high work platforms, loose construction materials, and flying debris account for roughly 10% of fatal on-site accidents.

  • Lethal Electrical Risks: Faulty wiring, ungrounded machinery, and live transformers pose fatal electrocution threats to all site workers, not just electricians.

  • Caught-In/Between Incidents: Workers face crushing dangers from collapsing structures, unstable trenches, or heavy machinery that unexpectedly activates during maintenance.

  • Employer Preventative Duty: Companies must enforce strict safety compliance, mandate proper hard hat use, provide personal fall arrest gear, and run continuous safety training.

  • Avenues for Compensation: Injured workers or grieving families can partner with an Austin attorney to pursue workers’ compensation benefits or file third-party personal injury lawsuits.

The “fatal four” are as follows:

  1. Falls – OSHA estimates that falls are responsible for 39.2% of all construction accident deaths each year. In 2017, about 381 workers were killed after falling from considering heights while performing their daily job duties. According to OSHA, companies can implement the following preventative measures to decrease fall rates at construction sites: create mandatory training opportunities, purchase better scaffolding materials, and provide life-saving safety equipment like clips, hoists, and pulleys.
  2. Struck by object – Any object that falls or is thrown down from a great height is incredibly dangerous to anyone situated at ground level. Even a bolt blown loose from a bursting pipe or a nail dropped from a roof can injure or kill a person. Sadly, being “struck” by an object accounts for nearly 10% of all construction accident deaths. Per this statistic, about 90 people a year die from preventable accidents, mishaps, and errors. The best way to decrease these incidents is to supply employees with better safety equipment and make sure they wear hard hats at all times.
  3. Electrocutions – Over 70 construction workers were killed in accidents involving electrocutions in 2017. Unfortunately, this is one of the key hazards of the industry, and not just for professional electricians. Construction workers are annually killed in incidents caused by faulty wiring, defective transformers, and countless other electrical hazards. For this reason, all construction site employees need to undergo extensive safety training to reduce their chances of sustaining life-threatening injuries.
  4. Caught-in/between – This odd term might require a little clarification for those outside the industry. Construction workers work with large machines, testy vehicles, and heavy equipment on a daily basis. When something breaks down, the construction worker may have to go inside the machine to fix it. Machinery defects or an act of coworker negligence may cause the machine to turn back on, resulting in the worker’s death. Of course, there are also situations where an employee has been struck by an object or vehicle and trapped against another. This umbrella term also encompasses situations where an employee is killed by a collapsing structure or material. According to OSHA reports, these incidents (and more) lead to about 50 construction worker fatalities annually.

Do You Require Legal Representation? Contact The Stewart Law Firm, PLLC Today

Contact the attorneys at The Stewart Law Firm, PLLC if you or a loved one has been injured or killed in a construction site accident. Our skilled legal team can investigate the incident, collect evidence that pinpoints a negligent party, and help you pursue workers’ compensation benefits and/or third-party damages. With our help, you may be able to collect a recovery that covers your medical costs, lost wages, and more.

We’re available 24/7! Contact The Stewart Law Firm, PLLC at (512) 326-3200 to schedule a case evaluation.

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