This list of bridges in Wales lists bridges of particular historical, scenic, architectural or engineering interest in Wales. Road and railway bridges, viaducts, aqueducts and footbridges are included.

Bridges are listed under the names used by Cadw,^[a] or the names most commonly used, which may be English or Welsh names. Where a bridge links two counties, it is listed under the first county alphabetically, unless associated by name with a settlement predominantly in the other county. The original Severn Bridge is not listed as it reaches land on the Gloucestershire side of the River Wye, the road crossing into Wales on the Wye Bridge.

Name	Date	Heritage Status	Image	Historic county	Principal area	Notes
Bangor Bridge, Bangor is y Coed	1663[b]	I		Flintshire	Wrexham	Spans River Dee.[1]
Barmouth Bridge	1860s	II*		Merionethshire	Gwynedd	Largely wooden railway viaduct, incorporating footbridge.[2]
Bigsweir Bridge	1826–29	II*		Monmouthshire	Monmouthshire	Spans the River Wye near St. Briavels, built as part of turnpike road between Chepstow and Monmouth.[3]
Blaen y Cwm Viaduct		II		Monmouthshire	Blaenau Gwent	Near Tredegar.[4]
Blackpool Bridge	c. 1825	II*		Pembrokeshire	Pembrokeshire	Spans Eastern Cleddau[5] at Slebech.
Britannia Bridge	1850–1972	II		Anglesey	Anglesey	Originally tubular bridge, rebuilt after fire in 1970 caused by children.[6] SH541710
Bont Dolgadfan	18th century?	II		Montgomeryshire	Powys	On old drovers' route from Machynlleth to Welshpool.[7]
Bont Fechan, Llanystumdwy		II		Caernarfonshire	Gwynedd	Spans Afon Dwyfach.[8]
Bont Newydd		II		Caernarfonshire	Gwynedd	On the road to Aber Falls.[9] SH662720
Brecon, Usk Bridge	1563	I		Brecknockshire	Powys	Links Bridge Street with Watergate.[10]
Bridgend, Old Bridge	c. 1425	II*		Glamorgan	Bridgend	Repaired after flood damage 1775, restored 2005, now footbridge.[11]
Brynderwen Bridge	1852	II*		Montgomeryshire	Powys	Across the River Severn, designed by Thomas Penson.[12]
Builth Wells, Wye Bridge	1779	II		Radnorshire	Powys	Widened 1925.[13]
Buttington Bridge	1872	II		Montgomeryshire	Powys	Across the River Severn.[14]
Caerhowel Bridge	1858	II		Montgomeryshire	Powys	Across the River Severn, designed by Thomas Penson.[15]
Caergwrle Packhorse Bridge	17th century	II*		Flintshire	Flintshire	Restored after damaged by floods, 2000.[16]
Caerleon Bridge	1806	II		Monmouthshire	Newport	Replaced earlier wooden bridge.[17]
Caersws Bridge	1821	II		Montgomeryshire	Powys	Across the River Severn, designed by Thomas Penson.[18]
Cardiff Bridge	1931	II		Glamorgan	Cardiff	Repeatedly rebuilt during C18–C19th following flood damage.[19]
Cardigan Bridge	1726	II*		Cardiganshire	Ceredigion	Widened and strengthened 1877-8.[20]
Carmarthen Bridge	1937–38	II		Carmarthenshire	Carmarthenshire	Replaced medieval six arch bridge.[21]
Carmarthen, Pont King Morgan	2006			Carmarthenshire	Carmarthenshire	Cable-stayed bridge, footbridge.
Cefn Coed Viaduct	1866	II*		Glamorgan	Merthyr Tydfil	Formerly carried the Brecon and Merthyr Railway over the River Taff, now carries the Taff Trail at Cefn-coed-y-cymmer.[22]
Cefn Viaduct	1848	II*		Denbighshire	Wrexham	Built by Thomas Brassey to carry the Shrewsbury and Chester Railway across the valley of the River Dee.[23]
The Celtic Gateway	2006			Anglesey	Anglesey	Footbridge linking the centre of Holyhead with the inner harbour ferry terminal and railway station.
Cenarth, Cenarth Bridge	1787	II*		Carmarthenshire	Carmarthenshire	By David Edwards, son of William Edwards.[24]
Chepstow, Old Wye Bridge	1816	I		Monmouthshire	Monmouthshire	Designed by John Raistrick.[25]
Chepstow Railway Bridge	1852	II		Monmouthshire	Monmouthshire	Designed by Brunel, subsequently largely rebuilt on original piers and abutments.[26]
Chirk Aqueduct	1801	II*		Denbighshire	Wrexham	Carries the Llangollen Canal across the Ceiriog Valley, partly in Wales, 710 ft (220 m) long.[27]
Chirk Viaduct	1846–48	II*		Denbighshire	Wrexham	Adjacent to aqueduct, spans the Ceiriog Valley, partly in Wales, about 98 ft (30 m) high.[28]
Forden, Cil-cewydd Bridge	1861	II		Montgomeryshire	Powys	Across the River Severn, designed by Thomas Penson.[29]
Aberbechan, Cilgwrgan Bridge	1862	II		Montgomeryshire	Powys	Across the River Severn.[30]
Cleddau Bridge	1975			Pembrokeshire	Pembrokeshire	Box girder bridge, partly collapsed during construction in 1970, the last major bridge disaster in the UK.
Conwy Railway Bridge	1848	I		Caernarfonshire	Conwy	Tubular bridge built by Robert Stephenson to a design by William Fairbairn, precursor of Britannia Bridge.[31]
Conwy Suspension Bridge	1826	I		Caernarfonshire	Conwy	Built by Thomas Telford.[32]
Rossett, Cook's Bridge	19th century	II		Denbighshire	Wrexham	Spans River Alyn.[33]
Crickhowell Bridge	1706	I		Brecknockshire	Powys	Widened and repaired following damage by floods in 1808.[34]
Cwm Prysor Railway Viaduct (Blaen-y-Cwm Viaduct)	1882	II		Gwynedd	Gwynedd	Carried former Bala and Festiniog Railway over Afon Prysor. Closed 1961.[35]
Cynghordy Viaduct	1867	II*		Carmarthenshire	Carmarthenshire	Crosses the valley of the Afon Brân at Cynghordy.[36]
Devil's Bridge	1075–1901	II*		Cardiganshire	Ceredigion	Three bridges of 1075, 1753 and 1901, built one above the other, across deep gorge of Afon Mynach.[37]
Dolauhirion Bridge	1773	I		Carmarthenshire	Carmarthenshire	By William Edwards
Dolgellau, Y Bont Fawr	1638	II		Merionethshire	Gwynedd	Widened and extended.[38]
Farndon Bridge	c. 1345	I		Denbighshire	Wrexham	Spans River Dee between Cheshire and Denbighshire. Little altered apart from abutments and flood arches.[39]
Felindre Bridge, Llanidloes	1848	II		Montgomeryshire	Powys	Across the River Severn, designed by Thomas Penson.[40]
Flintshire Bridge	1998			Flintshire	Flintshire	Cable-stayed bridge spanning canalised section of River Dee.
Four Mile Bridge				Anglesey	Anglesey	Stone bridge between Holy Island and the Anglesey mainland.
Garndiffaith Railway Viaduct	1874	II		Monmouthshire	Torfaen	Carried former Brynmawr and Blaenavon Railway over the river Ffrwd.[41]
Gelli Bridge. Llawhaden	18th century	II		Pembrokeshire	Pembrokeshire	At confluence of Eastern Cleddau and Afon Syfynwy.[42]
Halfway Bridge, Llandygai		II		Caernarfonshire	Gwynedd	Spans Afon Ogwen.[43]
Hawarden Bridge	1887–89			Flintshire	Flintshire	Swing bridge, now welded shut, carries railway across River Dee.[44]
Hengoed Viaduct		II*		Glamorgan	Caerphilly	Crosses the River Rhymney, now cycle/footpath.[45]
Kittlehill Packhorse Bridge, Landimore		II		Glamorgan	Swansea	Crosses Burry Pill, Gower Peninsula.[46]
Knucklas Viaduct	1865	II*		Radnorshire	Powys	Thirteen arches.[47]
Landore Railway Viaduct	1850			Glamorgan	West Glamorgan	Carries South Wales Main Line over the Swansea valley
Leckwith Old Bridge	16th century?	II*		Glamorgan	Cardiff/Vale of Glamorgan	Across the River Ely.[48]
Llanbedr Bridge, Llanbedr		II		Brecknockshire	Powys	Spans Grwyne Fechan.[49]
Llandderfel, Pont Fawr		II*		Merionethshire	Gwynedd	Spans the River Dee.[50]
Llandeilo Bridge	1843–48	II*		Carmarthenshire	Carmarthenshire	Replaced medieval seven arch bridge.[51]
Llandeilo Railway Bridge		II		Carmarthenshire	Carmarthenshire	Lattice girder bridge.[52]
Llandinam Bridge	1846	II*		Montgomeryshire	Powys	Across the River Severn at Llandinam, designed by Thomas Penson.[53]
Llandrinio Bridge	1775	I		Montgomeryshire	Powys	At Llandrinio. Strengthened to carry modern traffic in 1977.[54]
Llanellen Bridge	1821	II		Monmouthshire	Monmouthshire	Built by John Upton of Gloucester.[55]
Llanfechain Bridge		II		Montgomeryshire	Powys	Over the River Cain.[56]
Llangollen Bridge	16–20th century	I		Denbighshire	Denbighshire	At Llangollen, originally built by Henry I, reconstructed in 1346, replaced 16th century, widened 1873 and 1968.[57]
Llangynidr Bridge	18th century	I		Brecknockshire	Powys	Spans the River Usk at Llangynidr.[58]
Llanidloes, Long Bridge		II		Montgomeryshire	Powys	Across the River Severn, designed by Thomas Penson.[59]
Llanidloes, Short Bridge		II		Montgomeryshire	Powys	Designed by Thomas Penson.[60]
Llandysul Bridge		II		Cardiganshire	Ceredigion	Replaced three arch bridge partly demolished by Royalists during Civil War.[61]
Llanrwst, Pont Fawr	1636	I		Denbighshire	Conwy	Designed by Inigo Jones.[62]
Llawhaden Bridge		II*		Pembrokeshire	Pembrokeshire	At Llawhaden. Repaired 1809.[63]
Llechryd Bridge	17th century	II*		Cardiganshire	Ceredigion	Damaged by floods 2005.[64]
Loughor Railway Viaduct	c. 1860, replaced 2013	II		Carmarthenshire	Carmarthenshire	Originally timber, engineered by Brunel.[65]
Machynlleth Bridge (Pont ar Dyfi)	1805	II*		Montgomeryshire	Powys	Petition for replacement submitted 2011, following repeated damage by vehicles and floods.[66]
Menai Suspension Bridge	1826	I		Anglesey	Anglesey	Designed by Thomas Telford.[67]
Merthyr Mawr, New Bridge	1827	II*		Glamorgan	Bridgend	Inscription records the bridge was built at the expense of the Right Honourable Sir John Nicholl in 1827.[68]
Merthyr Mawr, New Inn Bridge	15th century	II*		Glamorgan	Bridgend	Built with holes in the parapets through which farmers pushed their sheep for their annual dip.[69]
Monmouth, Monnow Bridge	1272	I		Monmouthshire	Monmouthshire	The only surviving medieval fortified river bridge with gateway in Great Britain, gatehouse added 14th century.[70]
Monmouth, Wye Bridge	c. 1617	II		Monmouthshire	Monmouthshire	Widened 1879.[71]
Monmouth Viaduct	1861			Monmouthshire	Monmouthshire	Coleford, Monmouth, Usk & Pontypool Railway over River Wye. Closed 1964.
Nevern Bridge		II		Pembrokeshire	Pembrokeshire	Spans Afon Nyfer.[72]
Newcastle Emlyn Bridge		II*		Carmarthenshire	Carmarthenshire	Spans the River Teifi.[73]
Newport Bridge	1927	II		Monmouthshire	Newport	Replaced bridge of 1800.[74]
Newport, City Bridge	2004			Monmouthshire	Newport	Received British Constructional Steelwork Association Structural Steel Design Award in 2005.
Newport, City Footbridge	2006			Monmouthshire	Newport	Received George Gibby Award 2007.
Newport, George Street Bridge	1964	II*		Monmouthshire	Newport	First cable-stayed bridge in the United Kingdom.[75]
Newport Transporter Bridge	1906	I		Monmouthshire	Newport	Designed by Ferdinand Arnodin, one of only 8 surviving transporter bridges in the world.[76]
Newtown, Long Bridge	1827	II		Montgomeryshire	Powys	Across the River Severn, designed by Thomas Penson.[77]
Pant-y-Goitre Bridge	c. 1821	II*		Monmouthshire	Monmouthshire	Attributed to John Upton.[78]
Penallt Railway Viaduct	1876			Monmouthshire	Monmouthshire	Formerly carried the Wye Valley Railway over the River Wye
Penmachno, Roman Bridge		II		Caernarfonshire	Conwy	Medieval packhorse bridge.[79]
Penmaenpool Bridge	1879	II		Merionethshire	Gwynedd	Wooden tollbridge across River Mawddach.[80]
Pont Aberarth	1849	II		Cardiganshire	Ceredigion	Spans the River Arth.[81]
Pont Aberffraw	1731	II		Anglesey	Anglesey	No longer in use for vehicles.[82]
Pont Allt-y-Cafan	c. 1841	II*		Carmarthenshire	Carmarthenshire	Spans the River Teifi.[83]
Pont Beddgelert		II		Caernarfonshire	Gwynedd	Spans River Colwyn.[84]
Pont Briwet (Demolished)	1867 – 2013	II		Merionethshire	Gwynedd	Wooden railway viaduct incorporating adjacent single-track road.[85] Approval granted for demolition, February 2012.[86]
Pont Crafnant		II		Merionethshire	Gwynedd	Spans Afon Artro east of Pentre Gwynfryn.[87]
Pont Cothi, Abergorlech	17–18th century			Carmarthenshire	Carmarthenshire	Inscription, "this bridge was mended by John Jones 1794".[88]
Pont Carrog		II*		Merionethshire	Denbighshire	Spans River Dee.[89]
Pont Cysylltau	17–18th century	I		Denbighshire	Wrexham	Between Trevor and Froncysyllte.[90]
Pontcysyllte Aqueduct	1805	I		Denbighshire	Wrexham	Built by Thomas Telford and William Jessop, UNESCO World Heritage Site.[91]
Bryncrug, Pont Dysynni		II		Merionethshire	Gwynedd	Modern bridge alongside.[92]
Ponterwyd Hen Bont	18th century	II		Cardiganshire	Ceredigion	Close to Georgian Ponterwyd Chapel.[93]
Dyffryn Ardudwy, Pont Fadog	1762	II		Merionethshire	Gwynedd	Carries old drover's road across Afon Ysgethin.[94]
Cemmaes Road, Pont Felin y ffridd		II		Montgomeryshire	Powys	Carries the road from Machynlleth over the Afon Dulas.[95]
Dolwyddelan, Pont Gethin	1879	II*		Caernarfonshire	Gwynedd	Railway viaduct spanning the Lledr Valley.[96]
Llanddewi Brefi, Pont Gogoyan	18th century	II*		Cardiganshire	Ceredigion	Spans River Teifi near Llanddewi Brefi.[97]
Nantgaredig, Pont Llandeilo yr ynys		II*		Carmarthenshire	Carmarthenshire	Spans River Towy near Nantgaredig.[98]
Dolgellau, Pont Llanelltyd		II*		Merionethshire	Gwynedd	Near Dolgellau, now footbridge.[99]
Llanfair, Pont Llanfair		II		Cardiganshire	Ceredigion	Spans River Teifi at Llanfair Clydogau.[100]
Dinas Cross, Pont Llanychaer		II		Pembrokeshire	Pembrokeshire	Spans River Gwaun.[101]
Sennybridge, Pont Llwyncyntefin		II		Brecknockshire	Powys	Spans River Usk.[102]
Bodorgan, Pont Marquis		II		Anglesey	Anglesey	Spans Afon Cefni, adjoining site of WWII POW camp.[103]
Mallwyd, Pont Minllyn	17th century	II		Merionethshire	Gwynedd	Built by the local rector, Dr. John Davies.[104]
Afon Ogwen, Pont Pen y benglog		II		Caernarfonshire	Gwynedd	Spans Afon Ogwen at west end of Llyn Ogwen, span of packhorse bridge still visible.[105]
Pontrhydyfen, Pontrhydyfen Aqueduct	1825	II		Glamorgan	Neath Port Talbot	Now part of pedestrian and cycle track.[106]
Vaynor, Pontsarn Viaduct		II*		Brecknockshire	Merthyr Tydfil	Crosses the Afon Taff Fechan.[107]
Bontddu, Pont Scethin		Scheduled Monument		Merionethshire	Gwynedd	Remote packhorse bridge on old coach route from London to Harlech.[108]
Pont y Cafnau	1793	II*		Glamorgan	Merthyr Tydfil	World's earliest surviving iron railway bridge, built for a tramway to the Cyfarthfa Ironworks.[109]
Clynnog Fawr, Pont y Cim	1612	II		Caernarfonshire	Gwynedd	Near Pontllyfni: an inscribed stone on the bridge reads "Pont Y Cim, Catring Bwkle hath give 20 povends to mack this brighe. 1612".[110]
Llanberis, Pont y Gromlech		II		Caernarfonshire	Gwynedd	In Llanberis Pass.[111]
Pont y Gwaith	1811	II		Glamorgan	Merthyr Tydfil	"Bridge of the works" - referring to nearby ironworks.[112]
Betws y Coed, Pont-y-Pair	1468	II*		Caernarfonshire	Conwy	"Bridge of the cauldron".[113]
Pontypridd, Old Bridge	1756	I		Glamorgan	Rhondda Cynon Taf	Built by William Edwards, at 140 ft (43 m) the longest single-span bridge in Great Britain for 40 years.[114]
Pont y Werin	2010			Glamorgan	Vale of Glamorgan	Bascule bridge between Cardiff International Sports Village and Penarth.
Porthkerry Viaduct		II		Glamorgan	Vale of Glamorgan	In country park.[115]
Queensferry, Jubilee Bridge	1926	II		Flintshire	Flintshire	Bascule bridge, no longer opens. Also known as the Blue Bridge.[116]
Camrose, St Catherine's Bridge		II		Pembrokeshire	Pembrokeshire	Spans Western Cleddau.[117]
St. Julian's railway bridge	1874			Monmouthshire	Newport	Carries the Welsh Marches Line across the River Usk[118]
Second Severn Crossing	1996			Monmouthshire	Monmouthshire	3.19 mi (5.13 km) long.
Stackpole, Eight-Arch Bridge		II*		Pembrokeshire	Pembrokeshire	On the Stackpole Estate, owned and maintained by the National Trust.[119]
Swing Bridge, River Neath	1892	II		Glamorgan	Neath Port Talbot	Carried the former Rhondda and Swansea Bay Railway line over the River Neath. Now permanently welded shut.
Usk, Usk Bridge	1746–47	II*		Monmouthshire	Monmouthshire	Designed by William Edwards, enlarged 1836.[120]
Usk Bridge, Newport	1848			Monmouthshire	Newport	Carries the Great Western Main Line across the River Usk
Waterloo Bridge, Betws-y-Coed	1815	I		Caernarfonshire	Conwy	Early cast-iron bridge, designed by Thomas Telford.[121]
Wye Bridge	1966	II		Monmouthshire	Monmouthshire	Approach to the original Severn Bridge, 1,340 ft (410 m) long, strengthened in 1987.[122]

• List of bridges in the United Kingdom
• List of crossings of the River Severn
• List of crossings of the River Wye