Walnut Lane Memorial Bridge
E621290
Walnut Lane Memorial Bridge is a historic steel arch bridge in Philadelphia, Pennsylvania, recognized as one of David B. Steinman’s early landmark engineering works.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Walnut Lane Memorial Bridge canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4259223 — 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: Walnut Lane Memorial Bridge Context triple: [David B. Steinman, notableWork, Walnut Lane Memorial Bridge]
-
A.
Harry W. Nice Memorial Bridge
The Harry W. Nice Memorial Bridge is a major highway bridge carrying U.S. Route 301 across the Potomac River between Maryland and Virginia.
-
B.
Warren Avenue Bridge
The Warren Avenue Bridge is a significant roadway bridge in Bremerton, Washington, carrying traffic across the Port Washington Narrows and connecting key parts of the city.
-
C.
Lafayette Avenue Bridge
The Lafayette Avenue Bridge is a bascule drawbridge in Bay City, Michigan, that carries Lafayette Avenue across the Saginaw River and serves as a key local transportation link.
-
D.
George P. Coleman Memorial Bridge
The George P. Coleman Memorial Bridge is a major double-swing toll bridge in eastern Virginia that carries U.S. Route 17 across the York River, linking the Virginia Peninsula with Gloucester County.
-
E.
Willis Avenue Bridge
The Willis Avenue Bridge is a swing bridge in New York City that carries traffic between Manhattan and the Bronx.
- 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: Walnut Lane Memorial Bridge Target entity description: Walnut Lane Memorial Bridge is a historic steel arch bridge in Philadelphia, Pennsylvania, recognized as one of David B. Steinman’s early landmark engineering works.
-
A.
Harry W. Nice Memorial Bridge
The Harry W. Nice Memorial Bridge is a major highway bridge carrying U.S. Route 301 across the Potomac River between Maryland and Virginia.
-
B.
Warren Avenue Bridge
The Warren Avenue Bridge is a significant roadway bridge in Bremerton, Washington, carrying traffic across the Port Washington Narrows and connecting key parts of the city.
-
C.
Lafayette Avenue Bridge
The Lafayette Avenue Bridge is a bascule drawbridge in Bay City, Michigan, that carries Lafayette Avenue across the Saginaw River and serves as a key local transportation link.
-
D.
George P. Coleman Memorial Bridge
The George P. Coleman Memorial Bridge is a major double-swing toll bridge in eastern Virginia that carries U.S. Route 17 across the York River, linking the Virginia Peninsula with Gloucester County.
-
E.
Willis Avenue Bridge
The Willis Avenue Bridge is a swing bridge in New York City that carries traffic between Manhattan and the Bronx.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
road bridge
ⓘ
steel arch bridge ⓘ |
| carries |
Walnut Lane
NERFINISHED
ⓘ
pedestrian traffic ⓘ vehicular traffic ⓘ |
| constructionEndDate | 1908 ⓘ |
| constructionStartDate | 1906 ⓘ |
| crosses | Wissahickon Creek NERFINISHED ⓘ |
| designer | David B. Steinman NERFINISHED ⓘ |
| hasAlternativeClassification | open-spandrel steel deck arch bridge ⓘ |
| hasApproachSpans | reinforced concrete approach spans ⓘ |
| hasConstructionType | riveted steel construction ⓘ |
| hasContext | spans a wooded gorge in Wissahickon Valley ⓘ |
| hasDeckType | concrete deck ⓘ |
| hasDesign | open-spandrel deck arch ⓘ |
| hasEngineeringSignificance |
early large-scale steel arch bridge in the United States
ⓘ
example of early 20th-century open-spandrel arch design ⓘ |
| hasFunction | connects Germantown and Roxborough neighborhoods ⓘ |
| hasHeritageStatus | listed as a historic structure by the City of Philadelphia ⓘ |
| hasHistoricRole | facilitated development between Germantown and Roxborough ⓘ |
| hasNumberOfSpans | 1 ⓘ |
| hasOriginalRailings | decorative metal railings (partially replaced) ⓘ |
| hasParapetType | concrete parapets ⓘ |
| hasSidewalks | sidewalks on both sides ⓘ |
| hasTrafficLanes | two lanes ⓘ |
| heightAboveWater | approximately 147 feet ⓘ |
| isTouristAttraction | yes ⓘ |
| length | approximately 585 feet ⓘ |
| locatedIn |
Philadelphia
ⓘ
surface form:
Philadelphia, Pennsylvania
United States of America ⓘ
surface form:
United States
|
| locatedInNeighborhood |
Germantown
NERFINISHED
ⓘ
Roxborough NERFINISHED ⓘ |
| mainSpanLength | approximately 233 feet ⓘ |
| maintainedBy | City of Philadelphia NERFINISHED ⓘ |
| material | steel ⓘ |
| namedAfter | Walnut Lane NERFINISHED ⓘ |
| opened | 1908 ⓘ |
| owner | City of Philadelphia NERFINISHED ⓘ |
| partOf | Fairmount Park roadway network NERFINISHED ⓘ |
| recognizedAs | one of David B. Steinman’s early landmark engineering works ⓘ |
| underwentRehabilitation |
1950s
ⓘ
1990s ⓘ |
| visibleFrom | Wissahickon Valley Park trails NERFINISHED ⓘ |
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: Walnut Lane Memorial Bridge Description of subject: Walnut Lane Memorial Bridge is a historic steel arch bridge in Philadelphia, Pennsylvania, recognized as one of David B. Steinman’s early landmark engineering works.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.