Wwii Concrete Infantry Section Post is a Grade II listed building in the Somerset local planning authority area, England. First listed on 12 January 2010. Pillbox.

Wwii Concrete Infantry Section Post

WRENN ID
late-trefoil-heath
Grade
II
Local Planning Authority
Somerset
Constituency
Tiverton and Minehead MP: Rachel Gilmour (LD)
Country
England
Date first listed
12 January 2010
Type
Pillbox
Address
Wwii Concrete Infantry Section Post, B3191, Carhampton
OS grid reference
ST 021 434
Coordinates
51.18228, -3.40163
Source
Historic England listing

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

Description

This is a Second World War concrete infantry section post, built in the summer of 1940. It has a bunker-like appearance, consisting of a rectangular main section with two wings. The structure includes a substantial three-sided concrete wall protecting a covered gallery to the rear. The concrete is rough, incorporating large beach pebbles in the roof, likely for camouflage. There are four embrasures in each of the side walls, and three in the front; one embrasure in each side wall is larger, designed to accommodate a heavy machine gun. The gallery was accessed via a pair of entrances facing to the rear, which are now blocked. Behind the central pillbox is a horse-shoe shaped hollow defined by a concrete revetment, marking the site of a former gun position.

Following the defeat at Dunkirk in May 1940 and the threat of invasion, the British military developed anti-invasion defence lines, largely in place by the end of that year. The Somerset coast was protected by various defences, including coastal batteries, anti-tank obstacles, gun emplacements, and infantry section posts manned by the Home Guard. This particular post was constructed between June and September 1940, primarily by the ad hoc K1 Battalion of the Somerset Light Infantry. It was built to protect a length of beach believed vulnerable to glider attack and to defend the nearby railway station. The defended locality of Blue Anchor Bay included at least twelve pillboxes, an anti-tank girder, and other obstacles.

Local climate

Wwii Concrete Infantry Section Post sits in a wetter-than-average part of the UK, with an average of 970 mm of rain a year. This makes it wetter than 76% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 83% of listed buildings.

It experiences an average of 19 freeze-thaw cycles a year, fewer than 81% of listed buildings. Of these, 8 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.

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