Pont Hendre-isaf (partly in Ysbyty Ifan) is a Grade II listed building in the Conwy local planning authority area, Wales. First listed on 19 October 1998. Bridge.

Pont Hendre-isaf (partly in Ysbyty Ifan)

WRENN ID
quiet-flagstone-clover
Grade
II
Local Planning Authority
Conwy
Constituency
Bangor Aberconwy MP: Claire Hughes (Lab)
Country
Wales
Date first listed
19 October 1998
Type
Bridge
Address
Pont Hendre-isaf (partly in Ysbyty Ifan), Pentrefoelas
OS grid reference
SH 856 512
Coordinates
53.04584, -3.70771
Source
Cadw listing

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

Description

Pont Hendre-isaf is a bridge featuring rubble stonework, constructed with a single segmental arch that spans 10.8 meters between canalised stone abutments. The arch consists of a single ring of voussoirs that are 0.65 meters deep, rising to a soffit that is 5.8 meters above the water level. At the base of the flush parapet, there is a horizontal square string, topped with stone-on-edge coping that ends in small square piers. The abutment wall outside the arch's span is slightly battered at the base. The carriageway is level and measures 6.7 meters wide between the parapets, which are 0.5 meters high on each side.

Local climate

Pont Hendre-isaf (partly in Ysbyty Ifan) sits in one of the wettest parts of the UK, with an average of 1,240 mm of rain a year. This makes it wetter than 92% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 84% of listed buildings.

It experiences an average of 48 freeze-thaw cycles a year, more than 89% of listed buildings. Of these, 29 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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