Burrium

Burrium was a Roman legionary fortress in the province of Britannia Superior, now buried beneath the town of Usk in Monmouthshire. The Romans built it around AD 55 on a 48-acre site, likely for the Legio XX Valeria Victrix and a cavalry unit of 500 men. Earth and timber defences enclosed barracks and other military buildings. The fort played a key role in the conquest of the Silures, a tribe that fiercely resisted Roman rule. After the 20th Legion left for Viroconium Cornoviorum in AD 66, the base in Wales was mostly abandoned. A temporary ironworking depot replaced the fortress briefly, but the surrounding civilian settlement did not grow into a town. The area may have included an official mansio, a stopping place for officials and travellers. The site’s remains lie hidden under modern Usk, though traces of its earthworks and structures survive beneath the ground. Archaeologists have studied the fortress’s layout and military significance in Roman Britain. Its history reflects the broader struggle to control Wales during the first century AD. Visitors to Usk can walk over the buried remains of Burrium without seeing them. The town’s streets and buildings cover the ancient site, though some earthworks are still visible in places. The local landscape shows little of the fortress today, yet its strategic importance in Roman campaigns is recognised. The nearby River Usk once supplied water to the fort and its community. The remains remind us of the Roman military presence in this part of Wales.