Pair of Stone Bridges beside Iron Bridge and below Hermitage is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 8 September 1998. Bridge.

Pair of Stone Bridges beside Iron Bridge and below Hermitage

WRENN ID
ghost-wall-sepia
Grade
II
Local Planning Authority
Gwynedd
Constituency
Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
Country
Wales
Date first listed
8 September 1998
Type
Bridge
Address
Pair of Stone Bridges beside Iron Bridge and below Hermitage, Glynllifon, Llandwrog
OS grid reference
SH 461 555
Coordinates
53.07487, -4.29776
Source
Cadw listing

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

Description

This listing describes a pair of stone bridges located beside the Iron Bridge and below the Hermitage. The lower bridge is constructed from rubble and carries a footpath. It features a flat arch with coping on the parapets. The upper bridge also made of rubble has a round arch, through which a waterfall flows, adding to the many garden features in the area.

Local climate

Pair of Stone Bridges beside Iron Bridge and below Hermitage sits in one of the wettest parts of the UK, with an average of 1,370 mm of rain a year. This makes it wetter than 97% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 98% of listed buildings.

It experiences an average of 20 freeze-thaw cycles a year, fewer than 78% of listed buildings. Of these, 9 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
  • 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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Nearby listed buildings

  1. Iron Footbridge over Afon Llifon Grade II 16 m
  2. Hermitage Grade II 37 m
  3. Rubble Footbridge below the Hermitage Grade II 49 m
  4. Rubble Footbridge uphill from Hermitage Grade II 87 m
  5. Stone Footbridge to north-east of the Fountain at the end of the vista Grade II 128 m
  6. Ionic Column on former East Drive Grade II 252 m
  7. Eastern Cavern north of the path near main east vista fountain Grade II 258 m
  8. Fountain at end of east vista Grade II 270 m
  9. Cascade at Glynllifon Grade II 284 m
  10. Rubble Footbridge between Iron footbridge and Cave Grade II 286 m