Dolauhirion Bridge () is a single arch stone bridge which carries road traffic from

Llandovery Llandovery (; ) is a market town and community (Wales), community in Carmarthenshire, Wales. It lies on the River Tywi and at the junction of the A40 road, A40 and A483 road, A483 roads, about north-east of Carmarthen, north of Swansea and w ...

Cilycwm Cilycwm (, ) is a village, parish and community (Wales), community located in Carmarthenshire, Wales. The community population taken at the United Kingdom Census 2011, 2011 census was 487. Cilycwm lies on the west bank of Afon Gwenlais, a tribu ...

over the River Towy () in Carmarthenshire, Wales. It is a grade I listed structure. At the time the bridge was built the road was the main coach road from Llandovery to Lampeter. Various wooden bridges had stood at the site until the present stone bridge was built in 1773 by the minister and bridge builder William Edwards. He had built several single arch stone bridges in Wales, particularly at

Pontypridd Pontypridd ( , ), Colloquialism, colloquially referred to as ''Ponty'', is a town and a Community (Wales), community in Rhondda Cynon Taf, South Wales, approximately 10 miles north west of Cardiff city centre. Geography Pontypridd comprises the ...

, where he had constructed what was then the biggest single arch () in the world. The Dolauhirion bridge has a span of and a carriageway width of with parapets. Typical of Edward's designs the bridge has circular openings in the

spandrel A spandrel is a roughly triangular space, usually found in pairs, between the top of an arch and a rectangular frame, between the tops of two adjacent arches, or one of the four spaces between a circle within a square. They are frequently fil ...

s, which relieve stress on the main structure in times of flood, and reduce weight and thus pressure on the arch.

References

{{coord, 52.0091, -3.8039, type:landmark_region:GB, display=title Bridges in Carmarthenshire Grade I listed buildings in Carmarthenshire Grade I listed bridges in Wales Bridges over the River Towy Stone bridges in the United Kingdom Llandovery