# Milecastle 27

Part of a series on the :
Military of ancient Rome 753 BC – AD 476 :
Structural history
Army
Unit types and ranks
Decorations and punishments
Legions
Auxilia
Generals
Navy
Fleets
Admirals :
Campaign history
Wars and battles :
Technological history
Military engineering
Castra
Siege engines
Triumphal arches
Roads :
Political history :
Strategy and tactics
Infantry tactics :
Frontiers and fortifications
Limes
Walls
Limes Britannicus
Antonine Wall
Hadrian's Wall
Saxon Shore
Limes Germanicus
Alb Limes
Lauter Valley Limes
Lower Germanic Limes
Main Limes
Neckar-Odenwald Limes
Upper Germanic-Rhaetian Limes
Wetterau Limes
Danube–Iller–Rhine Limes
Norican Limes
Claustra Alpium Iuliarum
Pannonian Limes
Limes Alutanus
Limes Moesiae
Trajan's Wall
Anastasian Wall
Limes Sarmatiae
Limes Arabicus
Limes Tripolitanus
Limes Mauretaniae :
Ancient Rome portal :
vte :
Milecastle 27 (Low Brunton) was a milecastle of the Roman Hadrian's Wall. It was located on the line of Hadrian's Wall, approximately midway between the A6079 and the River North Tyne. Its remains survive as a slight squarish platform with a maximum height of 0.4 metres (1.3 ft), but it is poorly defined to the north and east.

## Construction

Milecastle 27 was a long-axis milecastle with unknown gateway type. Such milecastles were thought to have been constructed by the Legio XX Valeria Victrix who were based in Deva Victrix (Chester).
The milecastle had internal dimensions of 60 feet (18 m) N-S and 50 feet (15 m) E-W. The milecastle is of type IV, with broad side walls.
The Milecastle was set in the Broad Wall which, at this point had a clay core with facing stones set in mortar, and unusually broad foundations (varying between 3.35 metres (11.0 ft) and 3.5 metres (11 ft)).

## Excavations and investigations

* 1930 – Milecastle 27 was located on 5 April by Miss T Hepple.
* 1952 – The dimensions of the Milecastel were established. No coins or inscriptions were found. Only one piece of pottery was found, but it was not dateable.
* 1966 – English Heritage Field Investigation. It was noted that the milecastle was visible as a low but distinct mound in a pasture field, but that no stonework remained. The milecastle was surveyed at 1:2500.
* 1989 – English Heritage Field Investigation. It was noted that the milecastle survived as a slight squarish platform with a maximum height of 0.4 metres (1.3 ft), but that it was poorly defined to the north and east. Nettle growth was noted within.

## Associated turrets

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 27 are known as Turret 27A and Turret 27B.

### Turret 27A

Turret 27A was demolished soon after construction to allow the construction of Cilurnum (Chesters Roman Fort). Therefore, only its foundations exist, underlying the remains of the fort. They are located immediately to the east of the northwest corner of the fort's principia (headquarters block). The foundations measured 3.36 metres (11.0 ft) square. The remaining foundations consist of a single layer of clay and massive cobbles.
Location on Ordnance Survey 1:25 000 map: 55°01′33″N 2°08′21″W﻿ / ﻿55.025912°N 2.139139°W﻿ / 55.025912; -2.139139﻿ (Turret 27A)

### Turret 27B

No traces of Turret 27B remain. The position is calculated.
Location (by calculation) 55°01′40″N 2°08′44″W﻿ / ﻿55.027639°N 2.145684°W﻿ / 55.027639; -2.145684﻿ (Turret 27B)

## Monument records

| Monument | Monument Number | English Heritage Archive Number |
| Milecastle 27 | 18300 | NY 96 NW 7 |
| Turret 27A | 19098 | NY 97 SW 1 |
| Turret 27B | 19101 | NY 97 SW 2 |

## Public access

There is no public access to Milecastle 27, or the calculated site of Turret 27B.
Access to Turret 27A is with English Heritage admission to Chesters Roman Fort.