Whirlpool Rapids Bridge
E287342
Whirlpool Rapids Bridge is a historic steel arch bridge connecting Niagara Falls, New York, and Niagara Falls, Ontario, spanning the Niagara Gorge just downstream from the famous falls.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Whirlpool Rapids Bridge canonical | 16 |
How this entity was disambiguated
This entity first appeared as the object of triple T2586238 — 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: Whirlpool Rapids Bridge Context triple: [Niagara River, crossedBy, Whirlpool Rapids Bridge]
-
A.
Nipigon River Bridge
Nipigon River Bridge is a cable-stayed bridge in Ontario, Canada, notable for carrying the Trans-Canada Highway across the Nipigon River and serving as a key transportation link in northern Ontario.
-
B.
Mackinac Bridge
The Mackinac Bridge is a major suspension bridge in Michigan that connects the state's Upper and Lower Peninsulas and is one of the longest suspension bridges in the world.
-
C.
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.
-
D.
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.
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E.
Homer M. Hadley Memorial Bridge
The Homer M. Hadley Memorial Bridge is a major floating bridge in Washington State that carries Interstate 90 across Lake Washington between Seattle and Mercer Island.
- 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: Whirlpool Rapids Bridge Target entity description: Whirlpool Rapids Bridge is a historic steel arch bridge connecting Niagara Falls, New York, and Niagara Falls, Ontario, spanning the Niagara Gorge just downstream from the famous falls.
-
A.
Nipigon River Bridge
Nipigon River Bridge is a cable-stayed bridge in Ontario, Canada, notable for carrying the Trans-Canada Highway across the Nipigon River and serving as a key transportation link in northern Ontario.
-
B.
Mackinac Bridge
The Mackinac Bridge is a major suspension bridge in Michigan that connects the state's Upper and Lower Peninsulas and is one of the longest suspension bridges in the world.
-
C.
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.
-
D.
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.
-
E.
Homer M. Hadley Memorial Bridge
The Homer M. Hadley Memorial Bridge is a major floating bridge in Washington State that carries Interstate 90 across Lake Washington between Seattle and Mercer Island.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
arch bridge
ⓘ
historic bridge ⓘ international bridge ⓘ railway bridge ⓘ road bridge ⓘ steel bridge ⓘ |
| borderCrossingBetween |
Canada
ⓘ
United States of America ⓘ |
| carries |
railway line
ⓘ
roadway ⓘ |
| clearanceBelow |
approximately 239 feet
ⓘ
approximately 73 meters ⓘ |
| connects |
Niagara Falls, New York
ⓘ
Niagara Falls, Ontario ⓘ |
| country |
Canada
ⓘ
United States of America ⓘ |
| crosses |
Niagara Gorge
ⓘ
linked to:
Niagara River gorge
Niagara River ⓘ |
| designedBy | Leffert L. Buck ⓘ |
| function | international border crossing over the Niagara River ⓘ |
| hasHeritageStatus | historic structure in both Canada and the United States ⓘ |
| hasLowerDeckUse | road traffic ⓘ |
| hasToll | yes ⓘ |
| hasUpperDeckUse | rail traffic ⓘ |
| length |
approximately 1,200 feet
ⓘ
approximately 366 meters ⓘ |
| locatedIn |
Niagara County, New York
ⓘ
Niagara Falls, New York ⓘ Niagara Falls, Ontario ⓘ Regional Municipality of Niagara ⓘ downstream from Niagara Falls ⓘ |
| locatedNear |
Niagara Whirlpool
ⓘ
Whirlpool Rapids ⓘ |
| mainSpan |
approximately 256 meters
ⓘ
approximately 840 feet ⓘ |
| maintainedBy | Niagara Falls Bridge Commission ⓘ |
| material | steel ⓘ |
| notableFor |
double-deck steel arch design
ⓘ
proximity to Niagara Falls ⓘ |
| opened | 1897 ⓘ |
| owner | Niagara Falls Bridge Commission ⓘ |
| partOf | transportation infrastructure of the Niagara region ⓘ |
| replaced | earlier suspension bridge at the site ⓘ |
| structureType | deck arch bridge ⓘ |
| usedBy |
passenger trains
ⓘ
pedestrians ⓘ vehicles ⓘ |
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: Whirlpool Rapids Bridge Description of subject: Whirlpool Rapids Bridge is a historic steel arch bridge connecting Niagara Falls, New York, and Niagara Falls, Ontario, spanning the Niagara Gorge just downstream from the famous falls.
Referenced by (16)
Full triples — surface form annotated when it differs from this entity's canonical label.