Pontypridd Old Bridge
E140182
Pontypridd Old Bridge is a historic 18th-century stone arch bridge in Pontypridd, Wales, renowned for its once-record-breaking single-span design.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Pontypridd Old Bridge canonical | 2 |
| Old Bridge, Pontypridd | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T791777 — 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: Pontypridd Old Bridge Context triple: [Pontypridd, hasLandmark, Pontypridd Old Bridge]
-
A.
Ha'penny Bridge
Ha'penny Bridge is a historic cast-iron pedestrian bridge over the River Liffey and one of Dublin’s most iconic symbols.
-
B.
Welsh Bridge
Welsh Bridge is a historic stone arch bridge spanning the River Severn in Shrewsbury, Shropshire, England.
-
C.
Swilcan Bridge
Swilcan Bridge is a small, historic stone footbridge on the 18th hole of the Old Course at St Andrews, iconic in golf for the traditional photographs of players crossing it.
-
D.
Warrington Bridge
Warrington Bridge is a historic road bridge spanning the River Mersey in Warrington, England, serving as a key local transport crossing.
-
E.
Runcorn Railway Bridge
Runcorn Railway Bridge is a historic steel truss railway bridge in northwest England that carries trains across the River Mersey between Runcorn and Widnes.
- 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: Pontypridd Old Bridge Target entity description: Pontypridd Old Bridge is a historic 18th-century stone arch bridge in Pontypridd, Wales, renowned for its once-record-breaking single-span design.
-
A.
Ha'penny Bridge
Ha'penny Bridge is a historic cast-iron pedestrian bridge over the River Liffey and one of Dublin’s most iconic symbols.
-
B.
Welsh Bridge
Welsh Bridge is a historic stone arch bridge spanning the River Severn in Shrewsbury, Shropshire, England.
-
C.
Swilcan Bridge
Swilcan Bridge is a small, historic stone footbridge on the 18th hole of the Old Course at St Andrews, iconic in golf for the traditional photographs of players crossing it.
-
D.
Warrington Bridge
Warrington Bridge is a historic road bridge spanning the River Mersey in Warrington, England, serving as a key local transport crossing.
-
E.
Runcorn Railway Bridge
Runcorn Railway Bridge is a historic steel truss railway bridge in northwest England that carries trains across the River Mersey between Runcorn and Widnes.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
historic structure
ⓘ
road bridge ⓘ stone arch bridge ⓘ |
| architect | William Edwards ⓘ |
| completionDate | 1756 ⓘ |
| constructionStartDate | 1746 ⓘ |
| country | Wales ⓘ |
| crosses | River Taff ⓘ |
| crossesThrough |
Pontypridd
ⓘ
surface form:
Pontypridd town centre
|
| designer | William Edwards ⓘ |
| function | pedestrian bridge ⓘ |
| hasAlternativeName |
Pontypridd Old Bridge
ⓘ
surface form:
Old Bridge, Pontypridd
William Edwards Bridge ⓘ |
| hasCoordinateSystem | WGS84 ⓘ |
| hasCulturalSignificance | symbol of Pontypridd ⓘ |
| hasEngineeringSignificance | early example of long-span masonry arch ⓘ |
| hasFeature |
parapet walls
ⓘ
steep approaches ⓘ triangular cutwaters ⓘ |
| hasStructure | high segmental arch ⓘ |
| hasTourismAttractionType |
architectural attraction
ⓘ
historic landmark ⓘ |
| heritageDesignation |
Grade I listed building
ⓘ
Scheduled monument ⓘ |
| heritageDesignationCountry | Wales ⓘ |
| length | approximately 140 feet ⓘ |
| locatedIn |
Pontypridd
ⓘ
Rhondda Cynon Taf ⓘ United Kingdom ⓘ Wales ⓘ |
| locatedNear |
Pontypridd
ⓘ
surface form:
Pontypridd town centre
Victoria Bridge, Pontypridd ⓘ |
| mainSpan | approximately 140 feet ⓘ |
| materialUsed | stone ⓘ |
| namedAfter | Pontypridd ⓘ |
| notableFor |
narrow roadway
ⓘ
record-breaking single-span design at time of construction ⓘ |
| numberOfSpans | 1 ⓘ |
| opened | 1756 ⓘ |
| originalFunction | road traffic bridge ⓘ |
| ownedBy | local authority of Rhondda Cynon Taf ⓘ |
| partOf |
Pontypridd town heritage
ⓘ
transport history of Wales ⓘ |
| replacedBy | Victoria Bridge, Pontypridd ⓘ |
| spanType | single-span arch ⓘ |
| usedFor | pedestrian traffic ⓘ |
| width | approximately 11 feet ⓘ |
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: Pontypridd Old Bridge Description of subject: Pontypridd Old Bridge is a historic 18th-century stone arch bridge in Pontypridd, Wales, renowned for its once-record-breaking single-span design.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Old Bridge, Pontypridd