Blue Water Bridge
E158557
The Blue Water Bridge is a major international twin-span bridge that carries vehicular traffic across the St. Clair River between the United States and Canada.
All labels observed (4)
How this entity was disambiguated
This entity first appeared as the object of triple T843823 — 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: Blue Water Bridge Context triple: [Port Huron, Michigan, connectedBy, Blue Water Bridge]
-
A.
Tobin Bridge
The Tobin Bridge is a major steel cantilever bridge in the Boston area that carries U.S. Route 1 over the Mystic River, connecting Boston and Chelsea, Massachusetts.
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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.
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C.
Outerbridge Crossing
Outerbridge Crossing is a steel cantilever bridge that carries vehicular traffic between Staten Island, New York, and Perth Amboy, New Jersey, across the Arthur Kill tidal strait.
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D.
Algonquin Bridge
Algonquin Bridge is a pedestrian bridge located on the Toronto Islands, providing a scenic crossing between parts of the island park system.
-
E.
Concorde Bridge
Concorde Bridge is a road bridge in Montreal, Canada, best known for linking the city to Saint Helen’s Island and serving as a key access route during Expo 67.
- 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: Blue Water Bridge Target entity description: The Blue Water Bridge is a major international twin-span bridge that carries vehicular traffic across the St. Clair River between the United States and Canada.
-
A.
Tobin Bridge
The Tobin Bridge is a major steel cantilever bridge in the Boston area that carries U.S. Route 1 over the Mystic River, connecting Boston and Chelsea, Massachusetts.
-
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.
Outerbridge Crossing
Outerbridge Crossing is a steel cantilever bridge that carries vehicular traffic between Staten Island, New York, and Perth Amboy, New Jersey, across the Arthur Kill tidal strait.
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D.
Algonquin Bridge
Algonquin Bridge is a pedestrian bridge located on the Toronto Islands, providing a scenic crossing between parts of the island park system.
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E.
Concorde Bridge
Concorde Bridge is a road bridge in Montreal, Canada, best known for linking the city to Saint Helen’s Island and serving as a key access route during Expo 67.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
international bridge
ⓘ
road bridge ⓘ twin-span bridge ⓘ |
| carries |
Canada–United States border
ⓘ
surface form:
International Boundary between Canada and the United States
vehicular traffic ⓘ |
| connects |
Village of Point Edward
ⓘ
surface form:
Point Edward, Ontario
Port Huron, Michigan, United States ⓘ
surface form:
Port Huron, Michigan
|
| country |
Canada
ⓘ
United States of America ⓘ |
| crosses | St. Clair River ⓘ |
| crossesBetween |
Michigan
ⓘ
Ontario ⓘ |
| crossesWaterway |
St. Clair River
ⓘ
surface form:
St. Clair River shipping channel
|
| design |
cantilever truss bridge (original span)
ⓘ
continuous tied-arch bridge (second span) ⓘ |
| function | international road transport ⓘ |
| hasCustomsFacility |
Canada Border Services Agency
ⓘ
U.S. Customs and Border Protection ⓘ
surface form:
United States Customs and Border Protection
|
| hasLanes | multiple traffic lanes in each direction ⓘ |
| hasPedestrianAccess | no regular pedestrian walkway ⓘ |
| hasSpan |
original westbound span
ⓘ
second eastbound span ⓘ |
| hasTollPlaza |
Canadian side
ⓘ
United States side ⓘ |
| locatedIn |
Point Edward, Ontario, Canada
ⓘ
Port Huron, Michigan, United States ⓘ |
| locatedInTimeZone | Eastern Time Zone ⓘ |
| maintainedBy |
Federal Bridge Corporation (Canada)
ⓘ
Michigan Department of Transportation ⓘ |
| namedFor | blue waters of the St. Clair River ⓘ |
| nearbyCity |
Port Huron, Michigan, United States
ⓘ
surface form:
Port Huron, Michigan
Sarnia ⓘ
surface form:
Sarnia, Ontario
|
| opened | October 10, 1938 ⓘ |
| openedToTraffic |
1938 (original span)
ⓘ
1997 (second span) ⓘ |
| partOf |
Canada–United States border
ⓘ
Highway 402 (Ontario) ⓘ Interstate 69 ⓘ
surface form:
Interstate 69 (Michigan)
Interstate 94 ⓘ
surface form:
Interstate 94 (Michigan)
|
| region | Great Lakes region ⓘ |
| role | link in NAFTA/USMCA trade corridor ⓘ |
| secondSpanOpened | 1997 ⓘ |
| significance | major Canada–US border crossing ⓘ |
| structureType | steel bridge ⓘ |
| toll | yes ⓘ |
| trafficType |
commercial trucks
ⓘ
passenger 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: Blue Water Bridge Description of subject: The Blue Water Bridge is a major international twin-span bridge that carries vehicular traffic across the St. Clair River between the United States and Canada.
Referenced by (20)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Port Huron, Michigan
this entity surface form:
Blue Water Bridge at the Canadian border
subject surface form:
St. Clair County, Michigan
this entity surface form:
Blue Water Bridge Canada–United States border crossing
this entity surface form:
Blue Water Bridge (regional cross-border corridor)
subject surface form:
Corunna, Ontario