Concangis Concangis ( or Chester - le - Street Roman Fort ) was an auxiliary castra close to Dere Street , in the Roman province of Britannia Inferior ( Upper Britain ) . Its foundations are located at Chester - le - Street , County Durham , England . It is situated north of Durham and south of Newcastle upon Tyne . History . The Roman fort of Concangis is located east of the forts of Longovicium ( Lanchester ) and Vindomora ( Ebchester ) and south from Pons Aelius ( Newcastle upon Tyne ) . It is east of the main Roman road of Dere Street that connect other forts nearby the wall and beyond to Eboracum ( York ) . The fort was situated on another road , Cade ' s Road , leading from York to Pons Aelius . It is also believed it may have joined Dere Street through a branch road heading west connected to Longovicium ( situated on Dere Street ) , but this has yet to be discovered . The discovery by Raymond Selkirk of an abutment on the Cong Burn stream suggests a bridge was built there and connected this fort with the one at Vindomora ( Ebchester ) to the west . It is listed on both the 4th / 5th century Notitia Dignitatum and the 7th century Ravenna Cosmography . The name Concangis is Celtic rather than Roman and is thought to have meant something like ' the horse people ' , perhaps due to a nearby tribe . The fort is situated on a high bluff , overlooking the valleys of the Wear to the east and the Cong Burn to the north , the fort is in the sort of position frequently favoured by Roman military surveyors . The road north to Pons Aelius passes west of the fort and made monitoring of traffic easy . The fort covered roughly six and a half acres , and was built first in turf and timber probably in 70 ' s AD by the Legio VIIII Hispana ( Ninth Hispanic Legion ) , and later in stone by the Legio II Augusta ( The Second Augustan Legion ) , probably during the early 2nd century , coinciding with the construction of Hadrian ' s Wall , which was also built by Legio II . Excavations were carried out in 1978 and in 1990 / 1991 . Unfortunately much of the fort is located beneath the town of Chester - le - Street so little remains to be seen , except for a portion of the excavated officer ' s quarters left on display . Finds included pottery , fine table wares , coins , animal bones , a cheese press and curiously even a tile with a dog ' s footprint on it . Altars found range from the war god Mars and the sun god Apollo , to Celtic and German ones such as Digenis and Vitiris . The large ( 3 out of 8 ) number of altars dedicated to patron deities concerned with the wellbeing of veteran soldiers would seem to suggest the inhabitants of Concangis had a high proportion of ex - military men . Two large stones in the buttress of the parish church of St Mary and St Cuthbert have lewis holes which indicate they were recycled from the Roman fort . Garrison . A construction inscription attests the Legio II Augusta as having built / rebuilt the fort , but as is usual , this gives no evidence as to who occupied it as Legionaries only built the fortifications , it was the Auxilia that garrisoned it . An incomplete inscription mentions an Alae Antoninae ( Antonian Wing ) possibly on routine patrols and on restoration work on an aqueduct and latrines . The poor state of the inscription makes it impossible to accurately identify the unit , but based on finds nearby and units with similar names , it can be deduced the unit present was the Ala Secundae Asturum Antoniniana ( Second Wing of Antoninian ' s Asturians ) . This unit was present for emperor Septimius Severus ' s campaigns in Caledonia and was also present at other forts such as Lindum ( Lincoln ) . A tile with the initials NV seems to suggest the Numeri Vigilum was present here during the 4th century AD . It was also listed as Praefectus Numeri Vigilum Concangios ( The Prefect of the Company of Watchmen from Concangis ) under the Duke of the Britains .