Bridge at Sy 6923 7333 is a Grade II listed building in the Dorset local planning authority area, England. Bridge.

Bridge at Sy 6923 7333

WRENN ID
gentle-sandstone-woodpecker
Grade
II
Local Planning Authority
Dorset
Constituency
South Dorset MP: Lloyd Hatton (Lab)
Country
England
Type
Bridge
Address
Bridge at Sy 6923 7333, Verne Road, Portland
OS grid reference
SY 692 733
Coordinates
50.55888, -2.43582
Source
Historic England listing

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

Description

The bridge at SY 6923 7333 is a road bridge built in 1875 that spans a former mineral railway. It is constructed from heavy rock-faced squared stone and features a single segmental arch with rusticated quoins and voussoirs supported by plain internal abutments. The lower parts of the bridge may have a plinth, but these are concealed by the raised ground level. The bridge has a heavy square-edged weathered parapet that follows the incline of the road, with a change in the angle of incline above the center of the arch. The bridge is approximately 15 meters long and is the earliest of three bridges aligned over the former tramway. The date 1875 is inscribed on the road side of the northern parapet. This bridge is significant as it serves as a reminder of the 19th-century industrial activity in the quarries on the island, when rail and tramways played a crucial role in the transport system.

Local climate

Bridge at Sy 6923 7333 receives an average of 840 mm of rain a year. This makes it wetter than 55% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 77% of listed buildings.

It experiences an average of 13 freeze-thaw cycles a year, fewer than 88% of listed buildings. Of these, 5 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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  • Detailed attributes — period, style, materials, features
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