Turret 0A would have been one of the small interval watchtowers built into the fabric of Hadrian's Wall, constructed in the 120s AD under Hadrian and occupied, with interruptions, into the later 4th century. Standard turrets on the Wall were roughly 4–6 m square internally, recessed into the curtain, rising probably to two storeys, and manned by a small detachment drawn from the garrison of the nearest milecastle or fort. The "0A" designation places it at the eastern terminus of the Wall, in the Wallsend (Segedunum) sector close to the Tyne.
Source: Pleiades — A Community-Built Gazetteer and Graph of Ancient Places. View the Pleiades record →
As part of the regular system of two turrets between each milecastle, it provided observation, signalling, and shelter for patrols along the Wall's easternmost stretch, where the curtain ran down to the river. Turrets in this sector are of particular interest because the Wall here was a Hadrianic extension eastward from the original Pons Aelius terminus, making them part of the earliest reworking of the frontier scheme.
Very little is published specifically on Turret 0A; the eastern Wall corridor at Wallsend has been heavily affected by 19th- and 20th-century industrial and urban development, and most surviving knowledge of turrets in this sector derives from limited rescue work and from extrapolation from better-preserved examples such as Turret 7B (Denton). No substantial structural remains of 0A itself are recorded in the published literature known to me.
Turret 0A would have been one of the small interval watchtowers built into the fabric of Hadrian's Wall, constructed in the 120s AD under Hadrian and occupied, with interruptions, into the later 4th century. It is recorded in the Pleiades gazetteer of ancient places as a watch tower site from the Roman period in Britain.
Turret 0A is classified as a Roman watch tower — a military site in the Pleiades ancient world gazetteer. Roman Britain's archaeology encompasses thousands of sites ranging from legionary fortresses and marching camps to villas, temples and towns.
Several Roman sites lie within a short distance, including Segedunum (0.1 km), Turret 0B (St. Francis) (0.7 km), Milecastle 1 (Stott's Pow) (1.2 km). Aubrey Research maps over 2,200 Roman sites across Britain, drawn from the Pleiades ancient world gazetteer.
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