Iron Bridge
E163394
Iron Bridge is a historic cast-iron arch bridge in Shropshire, England, celebrated as the world’s first major bridge made of iron and a symbol of the Industrial Revolution.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Iron Bridge canonical | 7 |
| Ironbridge | 2 |
| Iron Bridge viewpoint | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T883341 — 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: Iron Bridge Context triple: [Shropshire, contains, Iron Bridge]
-
A.
Long Bridge
Long Bridge is a major railroad bridge over the Potomac River in Washington, D.C., carrying freight and passenger trains between the District of Columbia and Virginia.
-
B.
Leatherhead Bridge
Leatherhead Bridge is a historic road bridge spanning the River Mole in Leatherhead, Surrey, England.
-
C.
Richmond Bridge
Richmond Bridge is an 18th-century stone arch bridge in southwest London, renowned as the oldest surviving bridge across the River Thames in the city.
-
D.
Bow Bridge
Bow Bridge is an iconic cast-iron pedestrian bridge in New York City's Central Park, renowned for its elegant design and scenic views over the park's lakes and landscapes.
-
E.
Hampton Court Bridge
Hampton Court Bridge is a historic road bridge in southwest London that carries traffic across the River Thames near Hampton Court Palace, linking Hampton in London with East Molesey in Surrey.
- 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: Iron Bridge Target entity description: Iron Bridge is a historic cast-iron arch bridge in Shropshire, England, celebrated as the world’s first major bridge made of iron and a symbol of the Industrial Revolution.
-
A.
Long Bridge
Long Bridge is a major railroad bridge over the Potomac River in Washington, D.C., carrying freight and passenger trains between the District of Columbia and Virginia.
-
B.
Leatherhead Bridge
Leatherhead Bridge is a historic road bridge spanning the River Mole in Leatherhead, Surrey, England.
-
C.
Richmond Bridge
Richmond Bridge is an 18th-century stone arch bridge in southwest London, renowned as the oldest surviving bridge across the River Thames in the city.
-
D.
Bow Bridge
Bow Bridge is an iconic cast-iron pedestrian bridge in New York City's Central Park, renowned for its elegant design and scenic views over the park's lakes and landscapes.
-
E.
Hampton Court Bridge
Hampton Court Bridge is a historic road bridge in southwest London that carries traffic across the River Thames near Hampton Court Palace, linking Hampton in London with East Molesey in Surrey.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
cast-iron arch bridge
ⓘ
historic bridge ⓘ tourist attraction ⓘ |
| architecturalStyle | 18th-century industrial engineering ⓘ |
| builder | Abraham Darby III ⓘ |
| constructionMethod | prefabricated iron components ⓘ |
| constructionStartDate | 1779 ⓘ |
| coordinateSystem | WGS84 ⓘ |
| country | United Kingdom ⓘ |
| crosses |
Severn
ⓘ
surface form:
River Severn
|
| currentUse | pedestrian bridge ⓘ |
| depictedOn | various postage stamps ⓘ |
| designer | Thomas Farnolls Pritchard ⓘ |
| engineer | Abraham Darby III ⓘ |
| hasApproximateCoordinates | 52.627°N 2.485°W ⓘ |
| hasArchType | cast-iron ribbed arch ⓘ |
| hasCulturalSignificance |
icon of early ironworking technology
ⓘ
landmark of the Industrial Revolution in Britain ⓘ |
| hasDeckMaterial | wooden deck (originally) ⓘ |
| hasHistoricalEvent | opened to traffic on New Year’s Day 1781 ⓘ |
| hasNearbyMuseum |
Ironbridge Gorge Museum Trust
ⓘ
surface form:
Ironbridge Gorge Museum
|
| hasRestoration | major conservation project completed in the 2010s ⓘ |
| hasTollHistory | tolls abolished in the 20th century ⓘ |
| heritageDesignation |
Grade I listed building
ⓘ
UNESCO World Heritage Site component ⓘ |
| inception | late 18th century ⓘ |
| influenced | subsequent iron bridge construction worldwide ⓘ |
| locatedIn |
England
ⓘ
Ironbridge Gorge ⓘ Shropshire ⓘ United Kingdom ⓘ |
| locatedNear |
town of Telford
ⓘ
village of Ironbridge ⓘ |
| maintainedBy | English Heritage ⓘ |
| material | cast iron ⓘ |
| notableFor |
first major bridge in the world made of cast iron
ⓘ
symbol of the Industrial Revolution ⓘ |
| numberOfSpans | 1 ⓘ |
| opened | 1781 ⓘ |
| originalUse | road bridge ⓘ |
| owner | Telford and Wrekin Council ⓘ |
| partOf |
Ironbridge Gorge
ⓘ
surface form:
Ironbridge Gorge World Heritage Site
|
| riverBasin |
Severn
ⓘ
surface form:
Severn basin
|
| spanLength | about 30 metres ⓘ |
| structureType | single-span arch ⓘ |
| touristStatus | major visitor attraction in Shropshire ⓘ |
| worldHeritageSiteInscriptionYear | 1986 ⓘ |
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: Iron Bridge Description of subject: Iron Bridge is a historic cast-iron arch bridge in Shropshire, England, celebrated as the world’s first major bridge made of iron and a symbol of the Industrial Revolution.
Referenced by (10)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Iron Bridge viewpoint
this entity surface form:
Ironbridge
this entity surface form:
Ironbridge