Harlem River Ship Canal
E268248
The Harlem River Ship Canal is a man-made waterway in New York City that connects the Hudson and Harlem Rivers, effectively separating Marble Hill from the rest of Manhattan.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Harlem River Ship Canal canonical | 18 |
How this entity was disambiguated
This entity first appeared as the object of triple T2267565 — 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: Harlem River Ship Canal Context triple: [Marble Hill, locatedAlong, Harlem River Ship Canal]
-
A.
Harlem River
The Harlem River is a tidal strait in New York City that separates Manhattan from the Bronx and connects the Hudson River to the East River.
-
B.
Fort Point Channel
Fort Point Channel is a narrow waterway in Boston, Massachusetts, separating downtown from the Seaport District and historically serving as an important industrial and maritime corridor.
-
C.
Gowanus Bay
Gowanus Bay is a small industrial and maritime inlet off Upper New York Bay along the Brooklyn waterfront in New York City.
-
D.
Champlain Canal
The Champlain Canal is a historic waterway in New York State that links the Hudson River to Lake Champlain, forming part of the state's inland navigation system.
-
E.
Bronx River
The Bronx River is a freshwater river in southeastern New York that flows south through Westchester County into the Bronx, historically significant as an urban waterway and the focus of major conservation and restoration efforts.
- 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: Harlem River Ship Canal Target entity description: The Harlem River Ship Canal is a man-made waterway in New York City that connects the Hudson and Harlem Rivers, effectively separating Marble Hill from the rest of Manhattan.
-
A.
Harlem River
The Harlem River is a tidal strait in New York City that separates Manhattan from the Bronx and connects the Hudson River to the East River.
-
B.
Fort Point Channel
Fort Point Channel is a narrow waterway in Boston, Massachusetts, separating downtown from the Seaport District and historically serving as an important industrial and maritime corridor.
-
C.
Gowanus Bay
Gowanus Bay is a small industrial and maritime inlet off Upper New York Bay along the Brooklyn waterfront in New York City.
-
D.
Champlain Canal
The Champlain Canal is a historic waterway in New York State that links the Hudson River to Lake Champlain, forming part of the state's inland navigation system.
-
E.
Bronx River
The Bronx River is a freshwater river in southeastern New York that flows south through Westchester County into the Bronx, historically significant as an urban waterway and the focus of major conservation and restoration efforts.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
man-made waterway
ⓘ
ship canal ⓘ |
| adjacentTo |
Inwood Hill Park
ⓘ
Marble Hill neighborhood ⓘ
linked to:
Marble Hill
|
| administrativeEffect | physically separated Marble Hill from Manhattan Island ⓘ |
| connectsWaterBody |
Harlem River
ⓘ
Hudson River ⓘ |
| constructionStart | late 19th century ⓘ |
| country | United States of America ⓘ |
| crossedBy |
Broadway Bridge
ⓘ
Henry Hudson Bridge (near its western end via approaches) ⓘ
linked to:
Henry Hudson Bridge
railroad bridges ⓘ |
| engineeredBy |
United States Army Corps of Engineers
ⓘ
linked to:
U.S. Army Corps of Engineers
|
| geographicFeatureOf |
Bronx County
ⓘ
New York County ⓘ |
| hasBridgeType | movable bridges (historically) ⓘ |
| hasCurrentUse |
commercial navigation
ⓘ
recreational boating ⓘ |
| hasTidalInfluence | yes ⓘ |
| length |
approximately 0.9 miles
ⓘ
approximately 1.4 kilometers ⓘ |
| locatedIn |
Inwood neighborhood
ⓘ
New York City ⓘ Spuyten Duyvil neighborhood ⓘ borough of Manhattan ⓘ borough of the Bronx ⓘ |
| locatedInState | New York ⓘ |
| maintainedBy |
United States Army Corps of Engineers
ⓘ
linked to:
U.S. Army Corps of Engineers
|
| mapFeatureClass | canal ⓘ |
| mouthLocation | Hudson River at Spuyten Duyvil ⓘ |
| navigationImprovementFor | shipping around northern tip of Manhattan ⓘ |
| navigationPurpose | improve navigation between Hudson River and Harlem River ⓘ |
| opened | 1895 ⓘ |
| partOf | Harlem River ⓘ |
| reducedNavigationHazard | treacherous currents at original Spuyten Duyvil Creek ⓘ |
| region |
Upper Manhattan
ⓘ
western Bronx ⓘ
linked to:
southwest Bronx
|
| replacedWaterBody | original Spuyten Duyvil Creek ⓘ |
| separates | Marble Hill ⓘ |
| separatesFrom | rest of Manhattan Island ⓘ |
| sourceLocation |
Harlem River near Inwood
ⓘ
linked to:
Harlem River
|
| stillLegallyPartOf | borough of Manhattan (for Marble Hill) ⓘ |
| waterwayFunction |
local boat traffic route
ⓘ
shipping channel ⓘ |
| waterwaySystem | New York City waterway network ⓘ |
| waterwayType | tidal strait ⓘ |
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: Harlem River Ship Canal Description of subject: The Harlem River Ship Canal is a man-made waterway in New York City that connects the Hudson and Harlem Rivers, effectively separating Marble Hill from the rest of Manhattan.
Referenced by (18)
Full triples — surface form annotated when it differs from this entity's canonical label.
Marble Hill–225th Street (IRT Broadway–Seventh Avenue Line)
→
adjacentToWaterBody
→
Harlem River Ship Canal
ⓘ
subject linked to:
Marble Hill–225th Street subway station