What is "swffryd"

Swffryd or Sofrydd is a community that sits at the boundary of Blaenau Gwent County Borough, Wales and its post town is Newport. Most of the site was built as local authority houses to house the mining population. Lewis Street, Rectory Road and other parts in the west of the village have older houses and buildings. Remains of the Crumlin Viaduct can still be seen in Swffryd / Sofrydd and can be seen in full view from neighbouring Crumlin just off Lewis Street at the top of the embankment.