Milepost on A40 is a Grade II listed building in the Pembrokeshire local planning authority area, Wales. First listed on 16 July 2004. Milepost.

Milepost on A40

WRENN ID
little-groin-tarn
Grade
II
Local Planning Authority
Pembrokeshire
Constituency
Mid and South Pembrokeshire MP: Henry Tufnell (Lab)
Country
Wales
Date first listed
16 July 2004
Type
Milepost
Address
Milepost on A40, Narberth Road, Haverfordwest, Uzmaston, Boulston and Slebech
OS grid reference
SM 976 160
Coordinates
51.8062, -4.93627
Source
Cadw listing

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

Description

This is a milepost located on the A40. It features two white painted cast iron plates with triangular tops, which are set into a triangular stone on a short rubble stone wall. The plates have raised black letters that read '8 MILES 180 YARDS TO NARBERTH 17 MILES 922 YARDS TO PEMBROKE' on the west side and '1 MILE TO HAVERFORDWEST' on the east side.

Local climate

Milepost on A40 sits in a wetter-than-average part of the UK, with an average of 1,080 mm of rain a year. This makes it wetter than 86% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 95% of listed buildings.

It experiences an average of 6 freeze-thaw cycles a year, fewer than 96% of listed buildings. Of these, 2 follow 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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  • No EPC on record for this property
  • No sale records on file
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  • Detailed attributes — period, style, materials, features
  • Flood risk assessment
  • Radon risk assessment
  • Weather exposure and heating demand — rain and frost month by month and year by year, wind direction, solar and humidity
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