While the technical cause of failure of the Malahide Viaduct in Ireland was straight-forward, the human factor that collapsed the bridge was a relatively new phenomenon: corporate memory loss.

Detailed article on the collapse can be found at https://docs.wixstatic.com/ugd/52fa7d_fad1676492ec4e6f82619f16c05d8420.pdf

The Rail Accident Investigation Unit report on the collapse can be found at http://www.raiu.ie/download/pdf/accident_malahide.pdf