Conwy Railway Bridge
E1010388
19th-century engineering structure
Grade I listed building
iron bridge
railway bridge
tubular bridge
Conwy Railway Bridge is a 19th-century tubular iron railway bridge in Conwy, Wales, designed by Robert Stephenson and notable for its pioneering engineering and castle-like turrets.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Conwy Railway Bridge canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T12836022 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Conwy Railway Bridge Context triple: [River Conwy, hasBridge, Conwy Railway Bridge]
-
A.
Conwy Suspension Bridge
Conwy Suspension Bridge is a historic 19th-century suspension bridge in Conwy, Wales, notable for its picturesque setting beside Conwy Castle and its early iron-chain engineering.
-
B.
Dyfi Bridge
Dyfi Bridge is a historic stone road bridge in Wales that carries traffic across the River Dyfi near Machynlleth.
-
C.
Llangollen Bridge
Llangollen Bridge is a historic stone bridge spanning the River Dee in the Welsh town of Llangollen, renowned as a picturesque landmark in the Dee Valley.
-
D.
Pontypridd Old Bridge
Pontypridd Old Bridge is a historic 18th-century stone arch bridge in Pontypridd, Wales, renowned for its once-record-breaking single-span design.
-
E.
Barmouth Bridge
Barmouth Bridge is a historic wooden viaduct carrying the railway across the Mawddach Estuary near Barmouth in Gwynedd, Wales.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Conwy Railway Bridge Target entity description: Conwy Railway Bridge is a 19th-century tubular iron railway bridge in Conwy, Wales, designed by Robert Stephenson and notable for its pioneering engineering and castle-like turrets.
-
A.
Conwy Suspension Bridge
Conwy Suspension Bridge is a historic 19th-century suspension bridge in Conwy, Wales, notable for its picturesque setting beside Conwy Castle and its early iron-chain engineering.
-
B.
Dyfi Bridge
Dyfi Bridge is a historic stone road bridge in Wales that carries traffic across the River Dyfi near Machynlleth.
-
C.
Llangollen Bridge
Llangollen Bridge is a historic stone bridge spanning the River Dee in the Welsh town of Llangollen, renowned as a picturesque landmark in the Dee Valley.
-
D.
Pontypridd Old Bridge
Pontypridd Old Bridge is a historic 18th-century stone arch bridge in Pontypridd, Wales, renowned for its once-record-breaking single-span design.
-
E.
Barmouth Bridge
Barmouth Bridge is a historic wooden viaduct carrying the railway across the Mawddach Estuary near Barmouth in Gwynedd, Wales.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
19th-century engineering structure
ⓘ
Grade I listed building ⓘ iron bridge ⓘ railway bridge ⓘ tubular bridge ⓘ |
| adjacentTo | Conwy Castle NERFINISHED ⓘ |
| architecturalStyle | tubular iron construction ⓘ |
| category |
Bridges in Conwy County Borough
ⓘ
Grade I listed bridges in Wales ⓘ Railway bridges in Wales ⓘ Robert Stephenson bridges NERFINISHED ⓘ |
| constructionStart | 1840s ⓘ |
| country | United Kingdom ⓘ |
| crosses | River Conwy NERFINISHED ⓘ |
| designer | Robert Stephenson NERFINISHED ⓘ |
| distanceTo | Conwy Suspension Bridge NERFINISHED ⓘ |
| engineer | Robert Stephenson NERFINISHED ⓘ |
| hasDesignFeature |
battlemented turrets
ⓘ
fortified appearance ⓘ |
| hasPart |
castle-like turrets
ⓘ
stone abutments ⓘ tubular spans ⓘ |
| hasRailwayGauge | standard gauge ⓘ |
| heritageDesignation | Grade I listed ⓘ |
| heritageDesignationAppliesTo | Wales NERFINISHED ⓘ |
| inception | 1840s ⓘ |
| locatedInProtectedArea | Conwy Castle and Town Walls World Heritage Site buffer zone NERFINISHED ⓘ |
| location |
Conwy
NERFINISHED
ⓘ
Conwy County Borough NERFINISHED ⓘ Wales ⓘ |
| materialUsed |
masonry
ⓘ
wrought iron ⓘ |
| namedAfter | Conwy NERFINISHED ⓘ |
| near | Conwy town walls NERFINISHED ⓘ |
| notableFor |
castle-like turrets matching Conwy Castle
ⓘ
early use of wrought-iron box girder design ⓘ pioneering tubular bridge engineering ⓘ |
| openingDate | 19th century ⓘ |
| operator | Network Rail NERFINISHED ⓘ |
| owner | Network Rail NERFINISHED ⓘ |
| parallelStructure | Conwy Suspension Bridge NERFINISHED ⓘ |
| partOf |
British railway network
NERFINISHED
ⓘ
historic Chester to Holyhead railway route ⓘ |
| passesThrough | Conwy railway station vicinity ⓘ |
| railwayLine | North Wales Coast Line NERFINISHED ⓘ |
| situatedOn | River Conwy estuary NERFINISHED ⓘ |
| usedBy | mainline trains ⓘ |
| usedFor | railway traffic ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Conwy Railway Bridge Description of subject: Conwy Railway Bridge is a 19th-century tubular iron railway bridge in Conwy, Wales, designed by Robert Stephenson and notable for its pioneering engineering and castle-like turrets.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.