October 21 marked 60 years since a coal mine waste pile (or colliery spoil tip as they are called in Wales) collapsed above Aberfan, Wales, engulfing Pantglas Junior School and nearby homes. The disaster killed 144 people, including 116 children. The Welsh Government’s anniversary notice is a reminder of how deeply that loss is still felt.
There is more here for our profession than an anniversary. The Institution of Civil Engineers’ account of the lessons learned describes the changes that followed, including legislation and requirements for tip construction and inspection. Failures like Aberfan forced much closer attention to who was responsible for understanding the ground, recognizing a developing problem, and doing something about it.
Mine-waste management isn’t my area of expertise, so I’m not going to pretend I can assess all of the changes over the past six decades. But I think failures like this have helped push the industry toward a much stronger standard of care. More recently, the Brumadinho disaster helped prompt the Global Industry Standard on Tailings Management, with greater emphasis on senior-level accountability, independent oversight, and disclosure. Those expectations still have to be carried through into everyday decisions.
I’ve also been peripherally involved in the University of Arizona’s Geotechnical Center of Excellence, which brings industry and researchers together around applied geotechnical problems and professional education. Its courses on slope performance monitoring and water in mine operations are good examples of the continuing work needed to help people recognize and respond to hazards. I appreciate organizations like GCE that keep those conversations going between researchers and the people responsible for actual sites. The people downstream deserve that effort long after an anniversary has passed.
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