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Latitude: 52.087 / 52°5'13"N
Longitude: -3.8002 / 3°48'0"W
OS Eastings: 276753
OS Northings: 244708
OS Grid: SN767447
Mapcode National: GBR Y4.BN0J
Mapcode Global: VH5DJ.2TV0
Entry Name: Rhandirmwyn Bridge (partly in Llanfair-ar-y-Bryn community)
Listing Date: 5 September 2018
Source ID: 87778
Building Class: Transport
Location: Crossing the River Towy approx. 2km NW of the village of Rhandirmwyn
Community: Cilycwm (Cil-y-cwm)
Traditional County: Carmarthenshire
Built 1913 as a replacement for two fords and a footbridge across the River Towy at a point on its upper reaches where it is joined by the Gwenffrwd river. A new section of road was built to the NE at the same time (replacing the path from the footbridge) to the farm of Broncwrt and then joining the road from Rhandirmwyn. Designed by HA Ellis Engineer of Swansea and built by Rees & Kirby Ltd of Morriston using a Warren truss design. The Warren Truss had been patented by James Warren and Willoughby Theobald Monzani in 1848 and enabled bridges to be strong and light using lighter weight elements in its construction and ideal for modular prefabricated bridges. Rhandirmwyn bridge would have been fabricated in Swansea and transported to its remote location (probably by train to Llandovery) in kit form, or possibly partially assembled, and then finally constructed in situ.
Road bridge, steel construction of Warren type truss girders with rigid joints and 3 braced cross beams. Tarmac surface to the road deck, deck supported by cross beams. Cast plate at end ‘RHANDIRMWYN BRDIGE 1913 – H.A. Ellis SWANSEA ENGINEER – REES & KIRBY LTD MORRISTON BRIDGE BUILDERS’. Stone roadside curtain walls with piers and brick dressings attached to both NE and SW sides.
Included for its special architectural interest as a rare example of a Warren truss bridge, an unusual type of steel road bridge. Its form of construction using lightweight prefabricated components is well suited to the remote location of the upper Towy valley. It is also of historic importance as an example of an improvement to road transport in a rural area of Wales.
This structure has been afforded Interim Protection under the Planning (Listed Building and Conservation Areas) Act 1990. It is an offence to damage this structure and you may be prosecuted.
To find out more about Interim Protection, please visit the statutory notices page on the Cadw website. For further information about this structure, or to report any damage please contact Cadw.
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