Aberfan at 60: lessons that leaders must never forget

On 21 October 1966, a colliery spoil tip collapsed and engulfed part of the South Wales village of Aberfan, including Pantglas Junior School. The disaster claimed 144 lives, 116 of them children. 

The subsequent inquiry found that the disaster followed serious organisational failings, including warnings and concerns that had not been properly acted upon. Its findings underlined the devastating consequences that can arise when risks become normalised, communication breaks down and those who are responsible fail to listen.

Richard Bate, President of IOSH, said the anniversary was first and foremost a time to remember those who lost their lives, their families and the wider Aberfan community. 

He said: “Sixty years on, we remember the 144 people who lost their lives at Aberfan, including 116 children and a community that continues to live with the tragedy.

“Aberfan was not an unavoidable accident. It was a preventable disaster preceded by warning signs and concerns that were not properly heard or acted upon.

“Its enduring lesson is that no organisation can afford to become desensitised to risk. Leaders must create environments in which people feel able to raise concerns, those concerns are taken seriously, and action is taken before harm occurs. 

“That responsibility does not end at the workplace boundary. Organisations must understand how their decisions and activities could affect workers, families and the communities around them.

The disaster led to significant changes in how colliery spoil tips were managed and contributed to a wider recognition of the need for organisations to identify and manage risks to employees and members of the public. 

IOSH believes the lessons remain relevant across every industry. Organisations need effective systems for identifying and escalating concerns, but processes alone are not enough. Leaders must also build cultures in which risks can be challenged, difficult messages reach decision makers, and commercial or operational pressures never take priority over people’s safety. 

Richard added: “Regulation and professional practice have advanced significantly in the past 60 years, but systems are only effective when organisations remain vigilant and leaders accept responsibility for the consequences of their decisions. 

“The clearest tribute we can pay to those who died at Aberfan is to ensure that warnings are never dismissed, preventable risks are never accepted as inevitable, and the protection of people remains at the heart of every decision.”