The sinkhole opened up on Sunday at Nant Morlais, Pant, near Merthyr Tydfil. Images of the sinkhole ... The collapse of a culvert – a structure that allows water to flow under roads and railways ...

In the wake of Storm Bert's fury in November, the village of Pant in ... leader of Merthyr Tydfil Council told the BBC. "The site is as secure as it possibly can be. The culvert is in very good ...