The Mill Bridge is a Grade II listed building in the Pembrokeshire local planning authority area, Wales. First listed on 14 July 1981. Bridge.

The Mill Bridge

WRENN ID
lesser-hearth-alder
Grade
II
Local Planning Authority
Pembrokeshire
Constituency
Mid and South Pembrokeshire MP: Henry Tufnell (Lab)
Country
Wales
Date first listed
14 July 1981
Type
Bridge
Address
The Mill Bridge, Pembroke
OS grid reference
SM 983 016
Coordinates
51.67727, -4.9182
Source
Cadw listing

Also on this page: flood risk · radon risk · weather exposure · detailed attributes ↓

Description

The Mill Bridge is a Grade II listed structure that features a causeway, which steps out twice on the west side to accommodate the base of a demolished mill from around 1820 and its narrower northern wing. The short section of the main causeway on the left side of the west has its lower part faced with squared stone in regular courses, while the upper part is slightly set back and constructed of rubble, topped with flat grey limestone coping stones. There is a sluice gate arch made of tooled squared stone voussoirs and a keystone. The projection for the northern wing of the mill includes a large raking buttress made of squared stone. The main mill projection features a large segmental arch on the right side with raised voussoirs of cut stone. The walls of the mill have been reduced to the parapet level of the causeway, which has similar coping stones. There is a short length of causeway to the right of the projection.

On the east side, there is continuous masonry with squared stone in regular courses for the lower part and rubble above, along with a coped parapet. There is a raised arch of cut stone leading to the mill on the left and a flush similar arch for the sluice on the right. The remaining low walls of the mill have entrances at the south end and on the east side.

Local climate

The Mill Bridge sits in a wetter-than-average part of the UK, with an average of 1,160 mm of rain a year. This makes it wetter than 89% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 98% of listed buildings.

It experiences an average of 3 freeze-thaw cycles a year, fewer than 99% of listed buildings. Of these, 1 follows at least 1 mm of rain in the preceding 48 hours. Average temperatures at this location have risen by 0.3°C per decade since 1991.

Averages for 1991–2020; temperature trend 1991–2025. Figures describe the wider area (a grid cell of roughly 10 km), not the individual site. Contains modified Copernicus Climate Change Service information 2026.

More on this building

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  7. 2 & 4 Northgate Street Grade II 80 m
  8. N, E and W walls to the churchyard of the Church of Saint Mary Grade II 92 m
  9. Parish Church of Saint Mary Grade I 104 m
  10. Gates at SW, and railings to S and W sides of churchyard of St Mary Grade II 105 m