Baltimore Harbor Tunnel
E223858
The Baltimore Harbor Tunnel is a vehicular tunnel in Baltimore, Maryland, that carries Interstate 895 beneath the harbor as a major route for traffic bypassing downtown.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Baltimore Harbor Tunnel canonical | 4 |
| Baltimore Harbor Tunnel Thruway | 1 |
| Maryland toll tunnels | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1972392 — 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: Baltimore Harbor Tunnel Context triple: [Patapsco River, crossedBy, Baltimore Harbor Tunnel]
-
A.
Center City Tunnel
Center City Tunnel is an underground rail corridor in downtown Philadelphia that links several major commuter rail lines to create a unified through-running system.
-
B.
Brooklyn–Battery Tunnel
The Brooklyn–Battery Tunnel is a major vehicular tunnel in New York City that runs under the East River, connecting Brooklyn with Lower Manhattan.
-
C.
Chesapeake Bay Bridge–Tunnel
The Chesapeake Bay Bridge–Tunnel is a major 17.6-mile (28.3 km) engineering complex of bridges and tunnels that carries U.S. Route 13 across the mouth of the Chesapeake Bay, connecting Virginia’s Eastern Shore with the mainland near Norfolk.
-
D.
Holland Tunnel
The Holland Tunnel is a vehicular tunnel under the Hudson River that connects Lower Manhattan in New York City with Jersey City in New Jersey and is a major commuter route between the two states.
-
E.
Midtown Tunnel
The Midtown Tunnel is a vehicular tunnel in the Hampton Roads region that carries traffic beneath the Elizabeth River between Norfolk and Portsmouth, Virginia.
- 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: Baltimore Harbor Tunnel Target entity description: The Baltimore Harbor Tunnel is a vehicular tunnel in Baltimore, Maryland, that carries Interstate 895 beneath the harbor as a major route for traffic bypassing downtown.
-
A.
Center City Tunnel
Center City Tunnel is an underground rail corridor in downtown Philadelphia that links several major commuter rail lines to create a unified through-running system.
-
B.
Brooklyn–Battery Tunnel
The Brooklyn–Battery Tunnel is a major vehicular tunnel in New York City that runs under the East River, connecting Brooklyn with Lower Manhattan.
-
C.
Chesapeake Bay Bridge–Tunnel
The Chesapeake Bay Bridge–Tunnel is a major 17.6-mile (28.3 km) engineering complex of bridges and tunnels that carries U.S. Route 13 across the mouth of the Chesapeake Bay, connecting Virginia’s Eastern Shore with the mainland near Norfolk.
-
D.
Holland Tunnel
The Holland Tunnel is a vehicular tunnel under the Hudson River that connects Lower Manhattan in New York City with Jersey City in New Jersey and is a major commuter route between the two states.
-
E.
Midtown Tunnel
The Midtown Tunnel is a vehicular tunnel in the Hampton Roads region that carries traffic beneath the Elizabeth River between Norfolk and Portsmouth, Virginia.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
road tunnel
ⓘ
underwater tunnel ⓘ vehicular tunnel ⓘ |
| alsoKnownAs | I-895 Tunnel ⓘ |
| bypasses | downtown Baltimore ⓘ |
| carries | Interstate 895 ⓘ |
| connects |
northeast Baltimore
ⓘ
south Baltimore ⓘ
linked to:
South Baltimore
|
| country |
United States
ⓘ
linked to:
United States of America
|
| crosses | Patapsco River ⓘ |
| hasDirection |
northbound
ⓘ
southbound ⓘ |
| hasToll | yes ⓘ |
| length |
approximately 1.4 miles
ⓘ
approximately 2.3 kilometers ⓘ |
| locatedIn |
Baltimore
ⓘ
Baltimore Harbor ⓘ Maryland ⓘ |
| maintainedBy | Maryland Transportation Authority ⓘ |
| numberOfLanes | 4 ⓘ |
| opened | 1957 ⓘ |
| openedToTraffic | 1957 ⓘ |
| owner |
State of Maryland
ⓘ
linked to:
Maryland
|
| partOf |
Baltimore Harbor Tunnel Thruway
ⓘ
linked to:
Baltimore Harbor Tunnel
Interstate Highway System ⓘ |
| regionServed |
Baltimore metropolitan area
ⓘ
linked to:
Baltimore–Washington metropolitan area
|
| servesAs | bypass route for Interstate 95 traffic ⓘ |
| structureType | twin-tube tunnel ⓘ |
| tollRoad | yes ⓘ |
| trafficType | motor 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: Baltimore Harbor Tunnel Description of subject: The Baltimore Harbor Tunnel is a vehicular tunnel in Baltimore, Maryland, that carries Interstate 895 beneath the harbor as a major route for traffic bypassing downtown.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Baltimore Harbor Tunnel
linked to: Baltimore Harbor Tunnel