Middlebere Tramway Tunnel Portal is a Grade II listed building in the Dorset local planning authority area, England. First listed on 7 April 2004. Tunnel portal.
Middlebere Tramway Tunnel Portal
- WRENN ID
- cold-jade-bramble
- Grade
- II
- Local Planning Authority
- Dorset
- Constituency
- South Dorset MP: Lloyd Hatton (Lab)
- Country
- England
- Date first listed
- 7 April 2004
- Type
- Tunnel portal
- Address
- Middlebere Tramway Tunnel Portal, Corfe Castle
- OS grid reference
- SY 947 832
- Coordinates
- 50.64882, -2.07565
- Source
- Historic England listing
Description
The Middlebere Tramway Tunnel Portal is a plateway tunnel portal located on a disused line, dated 1807. It is constructed from coursed limestone and features a dressed limestone arch-ring with a keystone inscribed with "BF 1807." This structure is the south portal of the tunnel; the north portal was buried during the road widening of the A351 in 1965. The plateway was built by B. Fayle to transport clay from Norden to Middlebere Quay on Middlebere Lake. Initially, the trucks were horse-drawn, but in the 19th century, small narrow gauge tank engines were introduced. The line remained in use until 1936. This portal is a rare surviving example of a plateway tunnel portal.
Local climate
Middlebere Tramway Tunnel Portal receives an average of 770 mm of rain a year. This makes it drier than 64% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 75% of listed buildings.
It experiences an average of 9 freeze-thaw cycles a year, fewer than 91% of listed buildings. Of these, 4 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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- No EPC on record for this property
- No sale records on file
- No related consent applications matched
- 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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