Frederick Douglass Memorial Bridge
E394215
The Frederick Douglass Memorial Bridge is a major vehicular and pedestrian bridge in Washington, D.C., named in honor of abolitionist Frederick Douglass and serving as a key gateway into the city.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Frederick Douglass Memorial Bridge canonical | 5 |
| Frederick Douglass Memorial Bridge (northern landing) | 1 |
| original Frederick Douglass Memorial Bridge | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1757020 — 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: Frederick Douglass Memorial Bridge Context triple: [Anacostia River, hasBridge, Frederick Douglass Memorial Bridge]
-
A.
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.
-
B.
Grenville Dodge Memorial Bridge
The Grenville Dodge Memorial Bridge is a major highway bridge in the Omaha–Council Bluffs area that carries Interstate 480 across the Missouri River between Nebraska and Iowa.
-
C.
John F. Kennedy Memorial Bridge
The John F. Kennedy Memorial Bridge is a major Ohio River crossing in Louisville, Kentucky, carrying northbound traffic as part of the Interstate 65 corridor between Kentucky and Indiana.
-
D.
Franklin Delano Roosevelt Bridge
The Franklin Delano Roosevelt Bridge is an international bridge linking Campobello Island in New Brunswick, Canada, to the U.S. state of Maine, serving as the island’s only road connection to the mainland.
-
E.
Walt Whitman Bridge
The Walt Whitman Bridge is a major suspension bridge connecting Philadelphia, Pennsylvania, to Gloucester City, New Jersey, and serving as a key highway crossing over the Delaware River.
- 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: Frederick Douglass Memorial Bridge Target entity description: The Frederick Douglass Memorial Bridge is a major vehicular and pedestrian bridge in Washington, D.C., named in honor of abolitionist Frederick Douglass and serving as a key gateway into the city.
-
A.
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.
-
B.
Grenville Dodge Memorial Bridge
The Grenville Dodge Memorial Bridge is a major highway bridge in the Omaha–Council Bluffs area that carries Interstate 480 across the Missouri River between Nebraska and Iowa.
-
C.
John F. Kennedy Memorial Bridge
The John F. Kennedy Memorial Bridge is a major Ohio River crossing in Louisville, Kentucky, carrying northbound traffic as part of the Interstate 65 corridor between Kentucky and Indiana.
-
D.
Franklin Delano Roosevelt Bridge
The Franklin Delano Roosevelt Bridge is an international bridge linking Campobello Island in New Brunswick, Canada, to the U.S. state of Maine, serving as the island’s only road connection to the mainland.
-
E.
Walt Whitman Bridge
The Walt Whitman Bridge is a major suspension bridge connecting Philadelphia, Pennsylvania, to Gloucester City, New Jersey, and serving as a key highway crossing over the Delaware River.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
arch bridge
ⓘ
pedestrian bridge ⓘ road bridge ⓘ steel bridge ⓘ |
| belongsTo | District of Columbia transportation infrastructure ⓘ |
| carries |
South Capitol Street SE
ⓘ
surface form:
South Capitol Street
pedestrian traffic ⓘ vehicular traffic ⓘ |
| connects |
Anacostia neighborhood
ⓘ
Downtown Washington, D.C. ⓘ Navy Yard neighborhood ⓘ |
| constructionStartDate | 2018 ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| crosses | Anacostia River ⓘ |
| designedAs | triple-arch bridge ⓘ |
| hasFeature |
monumental arches
ⓘ
shared-use paths for pedestrians and cyclists ⓘ traffic circles at each end ⓘ |
| hasFunction | gateway into Washington, D.C. ⓘ |
| hasLighting | architectural lighting ⓘ |
| hasMaterial |
concrete
ⓘ
steel ⓘ |
| hasNumberOfLanes | 6 ⓘ |
| hasType | urban bridge ⓘ |
| hasUse |
local neighborhood access
ⓘ
regional commuter traffic ⓘ |
| hasViewOf |
Anacostia waterfront
ⓘ
surface form:
Anacostia River waterfront
United States Capitol ⓘ |
| isInMetropolitanArea | Washington metropolitan area ⓘ |
| isLandmarkOf |
Anacostia waterfront
ⓘ
surface form:
Anacostia Riverfront
South Capitol Street Corridor ⓘ
surface form:
South Capitol Street corridor
|
| isMajorRouteFor |
commuters from Prince George's County
ⓘ
traffic to Audi Field area ⓘ traffic to Nationals Park area ⓘ |
| locatedIn | Washington, D.C. ⓘ |
| locatedOn |
South Capitol Street SE
ⓘ
surface form:
South Capitol Street
|
| maintainedBy |
District of Columbia Department of Transportation
ⓘ
surface form:
District Department of Transportation
|
| namedAfter | Frederick Douglass ⓘ |
| namedForOccupation |
abolitionist
ⓘ
orator ⓘ statesman ⓘ |
| opened | 2021 ⓘ |
| partOf | South Capitol Street Corridor ⓘ |
| precededBy | South Capitol Street Bridge NERFINISHED ⓘ |
| replaced |
Frederick Douglass Memorial Bridge
self-linksurface differs
ⓘ
surface form:
original Frederick Douglass Memorial Bridge
|
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: Frederick Douglass Memorial Bridge Description of subject: The Frederick Douglass Memorial Bridge is a major vehicular and pedestrian bridge in Washington, D.C., named in honor of abolitionist Frederick Douglass and serving as a key gateway into the city.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Anacostia
Frederick Douglass Memorial Bridge (southern landing)
→
partOf
→
Frederick Douglass Memorial Bridge
ⓘ
Frederick Douglass Memorial Bridge (southern landing)
→
crossesTo
→
Frederick Douglass Memorial Bridge
ⓘ
this entity surface form:
Frederick Douglass Memorial Bridge (northern landing)
Frederick Douglass Memorial Bridge
→
replaced
→
Frederick Douglass Memorial Bridge
self-linksurface differs
ⓘ
this entity surface form:
original Frederick Douglass Memorial Bridge