History of Workington established on the north bank of the mouth of the River Derwent, near present-day Siddick Pond and Northside. Another fort or watchtower would have been on How Michael to the south side of the river, near present-day Chapel Bank. In 122, the Romans begin building Hadrian's Wall from Bowness on the Solway Firth to Wallsend on the North Sea. The discovery of a Roman fort around the parish church in Moresby to the south, and fortifications to the north at Risehow (Flimby), Maryport and Crosscannonby support the argument that the coastal wall extended down the whole Solway coast and formed
Milecastle 73 locations of the turrets have not been found. Both sites fall within Burgh Marsh where there is no evidence for any Wall structures. Milecastle 73 Milecastle 73 (Dykesfield) was one of a series of Milecastles or small fortlets built at intervals of approximately one Roman mile along Hadrian's Wall (). Milecastle 73 is situated about a mile west of the village of Burgh by Sands. There are no visible remains above ground. Milecastle 73 was located and partially excavated in 1948. It measured 19.2 metres north-south by 18.7 metres east-west internally. The walls were 2 metres thick. The milecastle was