CSX Railroad Bridge
E401654
The CSX Railroad Bridge is a freight rail bridge in Washington, D.C., carrying CSX Transportation trains across the Anacostia River as part of a major East Coast rail corridor.
All labels observed (3)
| Label | Occurrences |
|---|---|
| CSX Railroad Bridge canonical | 1 |
| CSX Transportation rail bridge at Long Bridge | 1 |
| CSX railroad bridge | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1757025 — 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: CSX Railroad Bridge Context triple: [Anacostia River, hasBridge, CSX Railroad Bridge]
-
A.
Kinzie Street Railroad Bridge
The Kinzie Street Railroad Bridge is a historic, early 20th-century vertical-lift railroad bridge in downtown Chicago, notable as one of the city’s iconic industrial-era river crossings.
-
B.
Sagamore Bridge
Sagamore Bridge is a major highway bridge in Massachusetts that carries traffic over the Cape Cod Canal, serving as one of the primary gateways to Cape Cod.
-
C.
Grenville Dodge Memorial Bridge
The Grenville Dodge Memorial Bridge is a major highway bridge in the Omaha–Council Bluffs area that carries Interstate 480 across the Missouri River between Nebraska and Iowa.
-
D.
Mystic River Bridge
The Mystic River Bridge, officially known as the Maurice J. Tobin Memorial Bridge, is a major steel cantilever roadway bridge in Boston, Massachusetts, carrying U.S. Route 1 over the Mystic River between Charlestown and Chelsea.
-
E.
Mark Twain Memorial Bridge
The Mark Twain Memorial Bridge is a highway bridge over the Mississippi River near Hannibal, Missouri, named in honor of the famed American author Mark Twain.
- 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: CSX Railroad Bridge Target entity description: The CSX Railroad Bridge is a freight rail bridge in Washington, D.C., carrying CSX Transportation trains across the Anacostia River as part of a major East Coast rail corridor.
-
A.
Kinzie Street Railroad Bridge
The Kinzie Street Railroad Bridge is a historic, early 20th-century vertical-lift railroad bridge in downtown Chicago, notable as one of the city’s iconic industrial-era river crossings.
-
B.
Sagamore Bridge
Sagamore Bridge is a major highway bridge in Massachusetts that carries traffic over the Cape Cod Canal, serving as one of the primary gateways to Cape Cod.
-
C.
Grenville Dodge Memorial Bridge
The Grenville Dodge Memorial Bridge is a major highway bridge in the Omaha–Council Bluffs area that carries Interstate 480 across the Missouri River between Nebraska and Iowa.
-
D.
Mystic River Bridge
The Mystic River Bridge, officially known as the Maurice J. Tobin Memorial Bridge, is a major steel cantilever roadway bridge in Boston, Massachusetts, carrying U.S. Route 1 over the Mystic River between Charlestown and Chelsea.
-
E.
Mark Twain Memorial Bridge
The Mark Twain Memorial Bridge is a highway bridge over the Mississippi River near Hannibal, Missouri, named in honor of the famed American author Mark Twain.
- F. None of above. chosen
Statements (26)
| Predicate | Object |
|---|---|
| instanceOf |
freight rail bridge
ⓘ
railway bridge ⓘ |
| carries | freight trains ⓘ |
| connects | rail lines on opposite banks of the Anacostia River ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| crosses |
Anacostia River
ⓘ
Anacostia River ⓘ
surface form:
Anacostia River in Washington, D.C.
|
| designedFor | heavy freight loads ⓘ |
| function | rail freight transport ⓘ |
| hasAccessRestriction | no public road traffic ⓘ |
| locatedIn |
District of Columbia
ⓘ
Washington, D.C. ⓘ |
| locatedNear |
Anacostia neighborhood
ⓘ
Navy Yard neighborhood ⓘ
surface form:
Navy Yard area of Washington, D.C.
|
| maintainedBy | CSX Transportation ⓘ |
| owner | CSX Transportation ⓘ |
| partOf |
CSX mainline system
ⓘ
surface form:
CSX rail network
Northeast Corridor ⓘ
surface form:
East Coast rail corridor
freight rail infrastructure of Washington, D.C. ⓘ |
| railwayLine |
CSX mainline system
ⓘ
surface form:
CSX mainline on the East Coast
|
| structureType | rail bridge ⓘ |
| usedBy |
CSX Transportation
ⓘ
intermodal freight trains ⓘ unit freight trains ⓘ |
| usedFor |
regional freight traffic
ⓘ
through freight 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: CSX Railroad Bridge Description of subject: The CSX Railroad Bridge is a freight rail bridge in Washington, D.C., carrying CSX Transportation trains across the Anacostia River as part of a major East Coast rail corridor.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
CSX railroad bridge
this entity surface form:
CSX Transportation rail bridge at Long Bridge