| Milecastle 13 | |
| Location: | Northumberland, England, UK |
| Pushpin Map: | United Kingdom Northumberland |
| Pushpin Map Caption: | Location in Northumberland |
| Pushpin Label Position: | left |
Milecastle 13 (Rudchester Burn) was a milecastle of the Roman Hadrian's Wall. Its remains exist as a low platform south of the B6318 Military Road.
Milecastle 13 was a short-axis milecastle and the north gateway has been identified as Type I. Such milecastles were thought to have been constructed by the legio II Augusta who were based in Isca Augusta (Caerleon).[1]
The milecastle measured 15.24m (50feet) × 17.91m (58.76feet) with narrow side walls having a thickness of 2.34m (07.68feet).
The threshold of the north gate was unworn, and raised 23cm (09inches). One stone remained, which could have acted as a third threshold, or part of a later narrowing of the gateway.
Each milecastle on Hadrian's Wall had two associated turret structures. These turrets were positioned approximately one-third and two-thirds of a Roman mile to the west of the Milecastle, and would probably have been manned by part of the milecastle's garrison. The turrets associated with Milecastle 13 are known as Turret 13A and Turret 13B.
The remains of Turret 13A (Rudchester East) are covered by the B6318 Military Road.[4] Investigation in 1930 revealed the turret to have the same plan as Turrets 12A and 12B, having a rectangular platform which occupied the south side of the interior. The mortared walls were recorded as 1.22 metres (4.0 ft) thick, with the doorway lying to the east.[2] At the location of Turret 13B, the curtain wall was recorded as 2.82m (09.25feet) thick (broad wall).
The fort of Vindobala (Rudchester) lies between Turrets 13A and 13B.
Location on Ordnance Survey 1:25 000 map: 55.0014°N -1.82°W
No remains exist of Turret 13B (Rudchester West). Its measured position is 73m (240feet) beyond the fort's west wall, at the location of an old toll-cottage.[5]
Measured location: 55.0026°N -1.8276°W
| Monument | Monument Number | English Heritage Archive Number | |
|---|---|---|---|
| Milecastle 13 | 22784 | NZ 16 NW 6 | |
| Turret 13A | 22789 | NZ 16 NW 7 | |
| Turret 13B | 22792 | NZ 16 NW 8 |