Milestone 150m SW of Clerkenwater House is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 1 October 2010. Milestone.

Milestone 150m SW of Clerkenwater House

WRENN ID
shadowed-rubblework-lake
Grade
II
Local Planning Authority
Cornwall
Constituency
North Cornwall MP: Ben Maguire (LD)
Country
England
Date first listed
1 October 2010
Type
Milestone
Address
Milestone 150m SW of Clerkenwater House, Helland
OS grid reference
SX 070 686
Coordinates
50.48601, -4.72178
Source
Historic England listing

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

Description

The milestone located 150 meters southwest of Clerkenwater House dates from around 1769 and is made of stone, likely granite, and is currently painted. It has a rectangular shape with a cambered head and stands approximately 0.5 meters high. The milestone features inscriptions in capital letters reading "B/1," with the lettering highlighted in black paint. Additionally, there is a metal pin at the top of the stone next to an inscribed benchmark.

Historically, this milestone is situated on the former turnpike road that connected Bodmin and Helland Bridge. The 1769 Act of Parliament established the Bodmin Turnpike Trust, which mandated the installation of milestones and direction posts along the road. This particular milestone was part of the route from Bodmin to Helland Bridge. Records indicate that while most toll gates operated by the Trust generated significant income in the early 19th century, the Clerkenwater Gate on the Hellandbridge Road yielded only twenty to thirty pounds annually. Nevertheless, the road remained under the Trust's management. This milestone is one of only three that were erected along this three-mile stretch of rural road.

The milestone's design is typical of those used by the Bodmin Turnpike Trust during that period and is marked on the first edition Ordnance Survey map from 1880.

Local climate

Milestone 150m SW of Clerkenwater House sits in a wetter-than-average part of the UK, with an average of 1,010 mm of rain a year. This makes it wetter than 81% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 88% of listed buildings.

It experiences an average of 13 freeze-thaw cycles a year, fewer than 88% of listed buildings. Of these, 6 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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