Housesteads Roman Fort is the remains of an auxiliary fort on Hadrian's Wall. south of Broomlee Lough. The fort was built in stone around AD 124, soon after the construction of the wall began in AD 122 when the area was part of the Roman province of Britannia. Its name has been variously given as Vercovicium, Borcovicus, Borcovicium, and Velurtion.
Hadrian's Wall was begun in AD 122. A fort was built in stone at the Housesteads Roman Fort site around AD 124 overlying the original Broad Wall foundation and Turret 36B. The fort was repaired and rebuilt several times, its northern defences being particularly prone to collapse. A substantial civil settlement (vicus) existed to the south, outside the fort, and some of the stone foundations can still be seen, including "Murder House", where two skeletons were found beneath an apparently newly laid floor when excavated.
In the 2nd century AD, the garrison consisted of an unknown double-sized auxiliary infantry cohort and a detachment of legionaries from Legio II Augusta. In the 3rd century, it comprised cohors I Tungrorum, augmented by the numerus Hnaudifridi and the cuneus Frisiorum. The Tungrians were still there in the 4th century, according to the Notitia Dignitatum. By 409 AD the Romans had withdrawn.
Most other early forts straddle the Wall and therefore protrude into barbarian territory. It is also unusual for Britain in that it has no running water supply and is dependent upon rainwater collection (for which purpose there is a series of large stone-lined tanks around the periphery of the defences). It also has one of the best-preserved stone latrines in Roman Britain.
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