Ayleswade Bridge Old Harnham Bridge is a Grade I listed building in the Wiltshire local planning authority area, England. First listed on 28 February 1952. A C13 Bridge.
Ayleswade Bridge Old Harnham Bridge
- WRENN ID
- rusted-foundation-barley
- Grade
- I
- Local Planning Authority
- Wiltshire
- Constituency
- Salisbury MP: John Glen (Con)
- Country
- England
- Date first listed
- 28 February 1952
- Type
- Bridge
- Address
- Ayleswade Bridge Old Harnham Bridge, St Nicholas's Road, Salisbury
- OS grid reference
- SU 143 290
- Coordinates
- 51.0606, -1.79649
- Source
- Historic England listing
Description
Old Harnham Bridge, also known as Ayleswade Bridge, was originally built in 1244 by Bishop Bingham. It spans two branches of the River Avon and an island situated between these branches, in connection with St Nicholas's Hospital on the north bank and a chapel located on the island. The bridge features a larger section with six arches and a smaller section with two arches, which includes a segmental center embrasure and a smaller angular embrasure at the south end on the east side. The remains of the old bridge, likely intact, can be seen within an outer casing that is probably from the 16th or 17th century. The structure is constructed entirely of ashlar stone and includes a solid parapet with plain splayed coping.
Local climate
Ayleswade Bridge Old Harnham Bridge receives an average of 790 mm of rain a year. This makes it drier than 58% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 60% of listed buildings.
It experiences an average of 30 freeze-thaw cycles a year, fewer than 63% of listed buildings. Of these, 13 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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