Thomas J. Hatem Memorial Bridge
E580726
The Thomas J. Hatem Memorial Bridge is a toll bridge carrying U.S. Route 40 across the Susquehanna River in northeastern Maryland, serving as a key transportation link between Harford and Cecil counties.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Thomas J. Hatem Memorial Bridge canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T3966931 — 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: Thomas J. Hatem Memorial Bridge Context triple: [Maryland Transportation Authority, operates, Thomas J. Hatem Memorial Bridge]
-
A.
Harry W. Nice Memorial Bridge
The Harry W. Nice Memorial Bridge is a major highway bridge carrying U.S. Route 301 across the Potomac River between Maryland and Virginia.
-
B.
John P. Grace Memorial Bridge
The John P. Grace Memorial Bridge was a cantilever truss bridge in Charleston, South Carolina, that carried U.S. Route 17 and served as a primary crossing between Charleston and Mount Pleasant for much of the 20th century.
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C.
Glenn L. Jackson Memorial Bridge
The Glenn L. Jackson Memorial Bridge is a major concrete segmental bridge carrying traffic across the Columbia River between Oregon and Washington as part of the Portland metropolitan highway system.
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D.
John F. McCarthy Memorial Bridge
The John F. McCarthy Memorial Bridge is a major toll bridge in the San Francisco Bay Area that carries Interstate 580 across San Francisco Bay between Richmond and San Rafael, California.
-
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: Thomas J. Hatem Memorial Bridge Target entity description: The Thomas J. Hatem Memorial Bridge is a toll bridge carrying U.S. Route 40 across the Susquehanna River in northeastern Maryland, serving as a key transportation link between Harford and Cecil counties.
-
A.
Harry W. Nice Memorial Bridge
The Harry W. Nice Memorial Bridge is a major highway bridge carrying U.S. Route 301 across the Potomac River between Maryland and Virginia.
-
B.
John P. Grace Memorial Bridge
The John P. Grace Memorial Bridge was a cantilever truss bridge in Charleston, South Carolina, that carried U.S. Route 17 and served as a primary crossing between Charleston and Mount Pleasant for much of the 20th century.
-
C.
Glenn L. Jackson Memorial Bridge
The Glenn L. Jackson Memorial Bridge is a major concrete segmental bridge carrying traffic across the Columbia River between Oregon and Washington as part of the Portland metropolitan highway system.
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D.
John F. McCarthy Memorial Bridge
The John F. McCarthy Memorial Bridge is a major toll bridge in the San Francisco Bay Area that carries Interstate 580 across San Francisco Bay between Richmond and San Rafael, California.
-
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 (40)
| Predicate | Object |
|---|---|
| instanceOf |
road bridge
ⓘ
steel truss bridge ⓘ toll bridge ⓘ |
| alsoKnownAs | Hatem Bridge NERFINISHED ⓘ |
| carries | U.S. Route 40 NERFINISHED ⓘ |
| connects |
Cecil County, Maryland
NERFINISHED
ⓘ
Harford County, Maryland NERFINISHED ⓘ |
| crosses | Susquehanna River NERFINISHED ⓘ |
| crossesFeature | Susquehanna River tidal estuary NERFINISHED ⓘ |
| crossesNear |
Havre de Grace, Maryland
NERFINISHED
ⓘ
Perryville, Maryland NERFINISHED ⓘ |
| function | key transportation link between Harford and Cecil counties ⓘ |
| hasDesign | truss ⓘ |
| hasRestriction |
bicycles prohibited
ⓘ
pedestrians prohibited ⓘ |
| hasToll | yes ⓘ |
| isOlderThan | John F. Kennedy Memorial Highway Susquehanna River crossing NERFINISHED ⓘ |
| isOn | Susquehanna River crossing corridor NERFINISHED ⓘ |
| isOneOf | major Susquehanna River crossings in Maryland ⓘ |
| isPartOfNetwork | Maryland toll facilities network ⓘ |
| locatedIn |
Maryland
ⓘ
United States of America ⓘ
surface form:
United States
|
| maintainedBy | Maryland Transportation Authority NERFINISHED ⓘ |
| material | steel ⓘ |
| namedAfter | Thomas J. Hatem NERFINISHED ⓘ |
| numberOfLanes | 4 ⓘ |
| officialName | Thomas J. Hatem Memorial Bridge NERFINISHED ⓘ |
| opened | 1940 ⓘ |
| openedToTraffic | August 1940 ⓘ |
| owner | State of Maryland NERFINISHED ⓘ |
| partOf |
U.S. Highway System
NERFINISHED
ⓘ
U.S. Route 40 corridor NERFINISHED ⓘ |
| precededBy | U.S. Route 40 crossing at Conowingo Dam NERFINISHED ⓘ |
| regionServed | northeastern Maryland ⓘ |
| replaced | Conowingo Bridge NERFINISHED ⓘ |
| roadCarried | Pulaski Highway NERFINISHED ⓘ |
| structureType | continuous truss bridge ⓘ |
| tollCollectionMethod | all-electronic tolling ⓘ |
| tollCollector | Maryland Transportation Authority NERFINISHED ⓘ |
| tollDirection | eastbound only ⓘ |
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: Thomas J. Hatem Memorial Bridge Description of subject: The Thomas J. Hatem Memorial Bridge is a toll bridge carrying U.S. Route 40 across the Susquehanna River in northeastern Maryland, serving as a key transportation link between Harford and Cecil counties.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.