Chain Bridge (Potomac River)
E496394
Chain Bridge is a historic vehicular and pedestrian bridge spanning the Potomac River between Washington, D.C., and Virginia, known for its strategic location and multiple reconstructions since the early 19th century.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Chain Bridge (Potomac River) canonical | 1 |
| Chain Bridge, Washington, D.C. | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4832780 — 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: Chain Bridge (Potomac River) Context triple: [Potomac River crossings toward Washington, D.C., hasComponent, Chain Bridge (Potomac River)]
-
A.
Arlington Memorial Bridge
Arlington Memorial Bridge is a historic Neoclassical span across the Potomac River in Washington, D.C., symbolically linking the Lincoln Memorial with Arlington National Cemetery.
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B.
Union Bridge, Maryland
Union Bridge, Maryland is a small historic town in Carroll County known for its railroad heritage and rural community character.
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C.
Frederick Douglass Memorial Bridge
The Frederick Douglass Memorial Bridge is a major vehicular and pedestrian bridge in Washington, D.C., named in honor of abolitionist Frederick Douglass and serving as a key gateway into the city.
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D.
Chesapeake Bay Bridge
The Chesapeake Bay Bridge is a major dual-span suspension bridge in Maryland that carries U.S. Route 50/301 across the Chesapeake Bay, linking Maryland’s eastern and western shores.
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E.
Sagadahoc Bridge
The Sagadahoc Bridge is a highway bridge spanning the Kennebec River in Maine, carrying U.S. Route 1 between the cities of Bath and Woolwich.
- 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: Chain Bridge (Potomac River) Target entity description: Chain Bridge is a historic vehicular and pedestrian bridge spanning the Potomac River between Washington, D.C., and Virginia, known for its strategic location and multiple reconstructions since the early 19th century.
-
A.
Arlington Memorial Bridge
Arlington Memorial Bridge is a historic Neoclassical span across the Potomac River in Washington, D.C., symbolically linking the Lincoln Memorial with Arlington National Cemetery.
-
B.
Union Bridge, Maryland
Union Bridge, Maryland is a small historic town in Carroll County known for its railroad heritage and rural community character.
-
C.
Frederick Douglass Memorial Bridge
The Frederick Douglass Memorial Bridge is a major vehicular and pedestrian bridge in Washington, D.C., named in honor of abolitionist Frederick Douglass and serving as a key gateway into the city.
-
D.
Chesapeake Bay Bridge
The Chesapeake Bay Bridge is a major dual-span suspension bridge in Maryland that carries U.S. Route 50/301 across the Chesapeake Bay, linking Maryland’s eastern and western shores.
-
E.
Sagadahoc Bridge
The Sagadahoc Bridge is a highway bridge spanning the Kennebec River in Maine, carrying U.S. Route 1 between the cities of Bath and Woolwich.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
bridge
ⓘ
pedestrian bridge ⓘ |
| carries |
pedestrian traffic
ⓘ
vehicular traffic ⓘ |
| connects |
Arlington County, Virginia
NERFINISHED
ⓘ
Washington, D.C. NERFINISHED ⓘ |
| crosses | Potomac River NERFINISHED ⓘ |
| function | river crossing between Washington, D.C., and Virginia ⓘ |
| hasAccessRoad |
Canal Road NW (Washington, D.C.)
NERFINISHED
ⓘ
Chain Bridge Road (Virginia) NERFINISHED ⓘ |
| hasAlternativeName | Chain Bridge over the Potomac River NERFINISHED ⓘ |
| hasBeenReconstructed | multiple times since early 19th century ⓘ |
| hasHistoricalSignificance |
early 19th-century infrastructure
ⓘ
strategic river crossing ⓘ |
| hasLaneType | two-lane roadway ⓘ |
| hasPedestrianFacility | sidewalk for pedestrians ⓘ |
| hasPredecessor |
earlier wooden bridges at same site
ⓘ
early chain suspension bridge at same site ⓘ |
| hasRoleIn | regional emergency and evacuation routes ⓘ |
| hasStrategicLocation | northernmost road crossing of the Potomac River within Washington, D.C. ⓘ |
| hasType | steel and concrete bridge (current structure) ⓘ |
| hasViewOf | Potomac River gorge near Little Falls NERFINISHED ⓘ |
| isImportantFor | connectivity between Northwest Washington and Northern Virginia suburbs ⓘ |
| isOnBoundaryBetween |
Commonwealth of Virginia
NERFINISHED
ⓘ
District of Columbia NERFINISHED ⓘ |
| isPartOf | crossings of the Potomac River ⓘ |
| isSubjectOf | local historic preservation interest ⓘ |
| locatedIn |
Virginia
ⓘ
Washington, D.C. ⓘ |
| locatedNear | Little Falls of the Potomac River NERFINISHED ⓘ |
| locatedNorthwestOf | Georgetown, Washington, D.C. NERFINISHED ⓘ |
| maintainedBy | District of Columbia transportation authorities NERFINISHED ⓘ |
| namedAfter | chain suspension design of an earlier bridge ⓘ |
| near |
Arlington’s Chain Bridge Forest area
ⓘ
C&O Canal National Historical Park (on Maryland side of Potomac River) NERFINISHED ⓘ George Washington Memorial Parkway NERFINISHED ⓘ Palisades neighborhood of Washington, D.C. NERFINISHED ⓘ |
| partOf | regional transportation network of Washington metropolitan area ⓘ |
| replaced | earlier chain suspension bridge destroyed or damaged multiple times ⓘ |
| situatedUpstreamOf |
Francis Scott Key Bridge
NERFINISHED
ⓘ
Key Bridge (Potomac River) NERFINISHED ⓘ |
| subjectTo | flood risks of the Potomac River ⓘ |
| usedFor |
commuter traffic
ⓘ
local access between Washington, D.C., and Arlington ⓘ |
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: Chain Bridge (Potomac River) Description of subject: Chain Bridge is a historic vehicular and pedestrian bridge spanning the Potomac River between Washington, D.C., and Virginia, known for its strategic location and multiple reconstructions since the early 19th century.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Chain Bridge, Washington, D.C.