Greater New Orleans Expressway
E1024071
The Greater New Orleans Expressway, better known as the Lake Pontchartrain Causeway, is a long twin-span bridge in Louisiana that stretches across Lake Pontchartrain and is among the world’s longest over-water bridges.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Greater New Orleans Expressway canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T13161722 — 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: Greater New Orleans Expressway Context triple: [Lake Pontchartrain Causeway, hasAlternativeName, Greater New Orleans Expressway]
-
A.
Claiborne Parkway
Claiborne Parkway is a major local thoroughfare in Loudoun County, Virginia, serving residential communities such as Broadlands and connecting them to other regional roads and amenities.
-
B.
Louisiana Highway 150
Louisiana Highway 150 is a state highway in northern Louisiana that serves as an important local connector route within Lincoln Parish.
-
C.
Bayfront Expressway
Bayfront Expressway is a major east–west arterial road in the San Francisco Bay Area that connects the Dumbarton Bridge to U.S. Route 101 and serves as a key commuter route along the bayshore.
-
D.
Louisiana Highway 1
Louisiana Highway 1 is a major north–south state highway in Louisiana that runs from the Gulf of Mexico through numerous communities to the Arkansas state line.
-
E.
Vine Street Expressway
The Vine Street Expressway is a major limited-access highway in Philadelphia, Pennsylvania, that carries Interstate 676 through the city’s downtown.
- 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: Greater New Orleans Expressway Target entity description: The Greater New Orleans Expressway, better known as the Lake Pontchartrain Causeway, is a long twin-span bridge in Louisiana that stretches across Lake Pontchartrain and is among the world’s longest over-water bridges.
-
A.
Claiborne Parkway
Claiborne Parkway is a major local thoroughfare in Loudoun County, Virginia, serving residential communities such as Broadlands and connecting them to other regional roads and amenities.
-
B.
Louisiana Highway 150
Louisiana Highway 150 is a state highway in northern Louisiana that serves as an important local connector route within Lincoln Parish.
-
C.
Bayfront Expressway
Bayfront Expressway is a major east–west arterial road in the San Francisco Bay Area that connects the Dumbarton Bridge to U.S. Route 101 and serves as a key commuter route along the bayshore.
-
D.
Louisiana Highway 1
Louisiana Highway 1 is a major north–south state highway in Louisiana that runs from the Gulf of Mexico through numerous communities to the Arkansas state line.
-
E.
Vine Street Expressway
The Vine Street Expressway is a major limited-access highway in Philadelphia, Pennsylvania, that carries Interstate 676 through the city’s downtown.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
bridge
ⓘ
causeway ⓘ transportation infrastructure ⓘ |
| alsoKnownAs | Lake Pontchartrain Causeway NERFINISHED ⓘ |
| connects |
Mandeville, Louisiana
NERFINISHED
ⓘ
Metairie, Louisiana NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| crosses | Lake Pontchartrain NERFINISHED ⓘ |
| design | concrete trestle bridge ⓘ |
| hasCategory |
Bridges in Louisiana
ⓘ
Causeways in the United States ⓘ Road bridges in the United States ⓘ Transportation in New Orleans metropolitan area ⓘ |
| hasDeckType | concrete deck ⓘ |
| hasEmergencyTurnarounds | true ⓘ |
| hasLanes | 4 ⓘ |
| hasNumberOfSpans | 2 ⓘ |
| hasPolicePatrol | Causeway Police NERFINISHED ⓘ |
| hasSignificance | major commuter route between Northshore and Southshore of Lake Pontchartrain ⓘ |
| hasSpeedLimit | approximately 65 mph ⓘ |
| hasStructure | twin-span bridge ⓘ |
| hasSuperstructureMaterial | reinforced concrete ⓘ |
| hasTollDirection | southbound ⓘ |
| hasTollPlaza |
north shore toll plaza
NERFINISHED
ⓘ
south shore toll plaza NERFINISHED ⓘ |
| hasTrafficDirection |
northbound
ⓘ
southbound ⓘ |
| hasType | vehicular bridge ⓘ |
| isEngineeringLandmark | true ⓘ |
| isTollRoad | true ⓘ |
| isTwinSpan | true ⓘ |
| length |
approximately 24 miles
ⓘ
approximately 38.6 kilometers ⓘ |
| locatedIn | Greater New Orleans metropolitan area NERFINISHED ⓘ |
| locatedNear | New Orleans, Louisiana NERFINISHED ⓘ |
| maintainedBy |
Causeway Commission
NERFINISHED
ⓘ
Greater New Orleans Expressway Commission NERFINISHED ⓘ |
| notableFor | being one of the world’s longest bridges over water ⓘ |
| opened | 1956 ⓘ |
| partOf | U.S. Highway 190 NERFINISHED ⓘ |
| passesOver | brackish water of Lake Pontchartrain ⓘ |
| region | Southeastern Louisiana NERFINISHED ⓘ |
| secondSpanOpened | 1969 ⓘ |
| state | Louisiana ⓘ |
| usedFor | automobile traffic ⓘ |
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: Greater New Orleans Expressway Description of subject: The Greater New Orleans Expressway, better known as the Lake Pontchartrain Causeway, is a long twin-span bridge in Louisiana that stretches across Lake Pontchartrain and is among the world’s longest over-water bridges.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.