Waterloo Bridge is a Grade I listed building in the Snowdonia National Park local planning authority area, Wales. First listed on 30 May 1996. Dwelling.

Waterloo Bridge

WRENN ID
little-terrace-amber
Grade
I
Local Planning Authority
Snowdonia National Park
Constituency
Bangor Aberconwy MP: Claire Hughes (Lab)
Country
Wales
Date first listed
30 May 1996
Type
Dwelling
Address
Waterloo Bridge, Betws-Y-Coed, Conwy
OS grid reference
SH 798 557
Coordinates
53.08521, -3.79543
Source
Cadw listing

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

Description

Waterloo Bridge is a cast iron road bridge built between 1815 and 1816 by engineer Thomas Telford. It is a key part of the new Shrewsbury to Holyhead road (A5), which was a significant achievement in engineering and road construction at the time. Originally known as Llynnon Bridge, it is considered the seventh major iron bridge in the world and features a span of over 30 meters, showcasing early iron technology. The bridge's decorative elements and its inscription, which commemorates the year of the Battle of Waterloo, reflect a spirit of confidence and optimism during a pivotal time in Britain's industrial and political development. The bridge was founded by W. Hazeldine, with W. Stuttle serving as the construction foreman.

The bridge has a wide single span with masonry springing. The segmental arch includes cast lettering that states, "This arch was constructed in the same year the battle of Waterloo was fought." The spandrels feature bold foliate decorations representing national emblems, including the rose, thistle, shamrock, and leek, some of which are partially polychromed. At the western end, the raised lettering reads, "Thomas Telford Engineer," while the eastern end displays the names of the founder and foreman along with the date 1815. The arch soffit has been reinforced with modern concrete coffering, and the simple cast iron balustrades have been slightly cantilevered outwards in recent years. Waterloo Bridge is listed as Grade I due to its significant design and as an important example of early iron technology.

Local climate

Waterloo Bridge sits in one of the wettest parts of the UK, with an average of 1,200 mm of rain a year. This makes it wetter than 91% 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 45 freeze-thaw cycles a year, more than 86% of listed buildings. Of these, 27 follow at least 1 mm of rain in the preceding 48 hours. Average temperatures at this location have risen by 0.2°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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