Fort Pitt Bridge
E496295
The Fort Pitt Bridge is a prominent steel double-deck arch bridge in Pittsburgh, Pennsylvania, carrying traffic from the Fort Pitt Tunnel over the Monongahela River into the city’s downtown.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Fort Pitt Bridge canonical | 3 |
| Fort Duquesne Bridge | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2825716 — 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: Fort Pitt Bridge Context triple: [Monongahela River, hasBridge, Fort Pitt Bridge]
-
A.
Cincinnati–Covington Bridge
The Cincinnati–Covington Bridge is a historic 19th-century suspension bridge over the Ohio River, renowned as a pioneering precursor to the Brooklyn Bridge and a major engineering achievement of its era.
-
B.
Columbia–Wrightsville Bridge
The Columbia–Wrightsville Bridge is a historic multi-span concrete arch bridge in Pennsylvania that carries U.S. Route 462 between the towns of Columbia and Wrightsville.
-
C.
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.
-
D.
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.
-
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: Fort Pitt Bridge Target entity description: The Fort Pitt Bridge is a prominent steel double-deck arch bridge in Pittsburgh, Pennsylvania, carrying traffic from the Fort Pitt Tunnel over the Monongahela River into the city’s downtown.
-
A.
Cincinnati–Covington Bridge
The Cincinnati–Covington Bridge is a historic 19th-century suspension bridge over the Ohio River, renowned as a pioneering precursor to the Brooklyn Bridge and a major engineering achievement of its era.
-
B.
Columbia–Wrightsville Bridge
The Columbia–Wrightsville Bridge is a historic multi-span concrete arch bridge in Pennsylvania that carries U.S. Route 462 between the towns of Columbia and Wrightsville.
-
C.
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.
-
D.
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.
-
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 (38)
| Predicate | Object |
|---|---|
| instanceOf |
arch bridge
ⓘ
double-deck bridge ⓘ road bridge ⓘ |
| approachIncludes | Fort Pitt Tunnel NERFINISHED ⓘ |
| carries |
Interstate 376
NERFINISHED
ⓘ
U.S. Route 22 NERFINISHED ⓘ U.S. Route 30 NERFINISHED ⓘ vehicular traffic ⓘ |
| city |
Pittsburgh, Pennsylvania
ⓘ
surface form:
Pittsburgh
|
| connects |
Downtown Pittsburgh
NERFINISHED
ⓘ
Fort Pitt Tunnel NERFINISHED ⓘ |
| country | United States of America ⓘ |
| crosses | Monongahela River NERFINISHED ⓘ |
| deckConfiguration | double-deck ⓘ |
| designedFor | automobile traffic ⓘ |
| feature | yellow-painted steel arches ⓘ |
| hasNumberOfDecks | 2 ⓘ |
| hasViewOf |
Ohio River
NERFINISHED
ⓘ
confluence of Allegheny and Monongahela Rivers ⓘ |
| location | Pittsburgh, Pennsylvania NERFINISHED ⓘ |
| lowerDeckUse | outbound traffic from Downtown Pittsburgh ⓘ |
| maintainedBy | Pennsylvania Department of Transportation NERFINISHED ⓘ |
| material | steel ⓘ |
| namedAfter | Fort Pitt NERFINISHED ⓘ |
| near |
Golden Triangle (Downtown Pittsburgh)
NERFINISHED
ⓘ
Point State Park NERFINISHED ⓘ |
| notableFor | panoramic view of Pittsburgh skyline ⓘ |
| opened | 1959 ⓘ |
| partOf | Pittsburgh bridge network ⓘ |
| partOfRoute | access route into Downtown Pittsburgh from the southwest ⓘ |
| region | Allegheny County, Pennsylvania NERFINISHED ⓘ |
| replaced | Point Bridge NERFINISHED ⓘ |
| riverBankConnection |
Point State Park vicinity
ⓘ
south bank of the Monongahela River ⓘ |
| state | Pennsylvania ⓘ |
| structureType | tied-arch bridge ⓘ |
| trafficDirection | bidirectional ⓘ |
| upperDeckUse | inbound traffic to Downtown Pittsburgh ⓘ |
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: Fort Pitt Bridge Description of subject: The Fort Pitt Bridge is a prominent steel double-deck arch bridge in Pittsburgh, Pennsylvania, carrying traffic from the Fort Pitt Tunnel over the Monongahela River into the city’s downtown.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Fort Duquesne Bridge