Colorado River Bridge
E504313
The Colorado River Bridge, formally known as the Mike O’Callaghan–Pat Tillman Memorial Bridge, is a major arch bridge spanning the Colorado River near Hoover Dam, carrying U.S. Route 93 between Nevada and Arizona.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Colorado River Bridge canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2843625 — 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: Colorado River Bridge Context triple: [Mike O’Callaghan–Pat Tillman Memorial Bridge, alsoKnownAs, Colorado River Bridge]
-
A.
Theodore Roosevelt Bridge
The Theodore Roosevelt Bridge is a major highway bridge over the Potomac River in Washington, D.C., carrying traffic between the city and Arlington, Virginia.
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B.
Colorado Street Bridge
The Colorado Street Bridge is a historic early-20th-century concrete arch bridge in Pasadena, California, renowned for its distinctive Beaux-Arts design and dramatic span over the Arroyo Seco.
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C.
Guadalupe Bridge
Guadalupe Bridge is a major road bridge in Metro Manila, Philippines, that carries EDSA across the Pasig River and serves as a key traffic artery in the city.
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D.
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.
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E.
Interstate Bridge
The Interstate Bridge is a pair of steel vertical-lift bridges carrying Interstate 5 across the Columbia River between Portland, Oregon, and Vancouver, Washington.
- 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: Colorado River Bridge Target entity description: The Colorado River Bridge, formally known as the Mike O’Callaghan–Pat Tillman Memorial Bridge, is a major arch bridge spanning the Colorado River near Hoover Dam, carrying U.S. Route 93 between Nevada and Arizona.
-
A.
Theodore Roosevelt Bridge
The Theodore Roosevelt Bridge is a major highway bridge over the Potomac River in Washington, D.C., carrying traffic between the city and Arlington, Virginia.
-
B.
Colorado Street Bridge
The Colorado Street Bridge is a historic early-20th-century concrete arch bridge in Pasadena, California, renowned for its distinctive Beaux-Arts design and dramatic span over the Arroyo Seco.
-
C.
Guadalupe Bridge
Guadalupe Bridge is a major road bridge in Metro Manila, Philippines, that carries EDSA across the Pasig River and serves as a key traffic artery in the city.
-
D.
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.
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E.
Interstate Bridge
The Interstate Bridge is a pair of steel vertical-lift bridges carrying Interstate 5 across the Columbia River between Portland, Oregon, and Vancouver, Washington.
- F. None of above. chosen
Statements (32)
| Predicate | Object |
|---|---|
| instanceOf |
arch bridge
ⓘ
highway bridge ⓘ |
| alsoKnownAs |
Hoover Dam Bypass Bridge
NERFINISHED
ⓘ
Mike O’Callaghan–Pat Tillman Memorial Bridge NERFINISHED ⓘ |
| carries | U.S. Route 93 NERFINISHED ⓘ |
| connects |
Arizona
NERFINISHED
ⓘ
Nevada NERFINISHED ⓘ |
| constructionStart | 2005 ⓘ |
| crosses | Colorado River NERFINISHED ⓘ |
| crossesAt | Black Canyon NERFINISHED ⓘ |
| design | concrete-steel composite arch ⓘ |
| function | vehicular traffic bridge ⓘ |
| hasFeature |
pedestrian walkway
ⓘ
viewpoint of Hoover Dam ⓘ |
| locatedIn |
Arizona
NERFINISHED
ⓘ
Nevada ⓘ United States of America ⓘ
surface form:
United States
|
| locatedNear | Hoover Dam NERFINISHED ⓘ |
| maintainedBy | U.S. federal and state transportation agencies ⓘ |
| material |
concrete
ⓘ
steel ⓘ |
| namedAfter |
Mike O’Callaghan
NERFINISHED
ⓘ
Pat Tillman NERFINISHED ⓘ |
| namedForOccupation |
politician Mike O’Callaghan
NERFINISHED
ⓘ
soldier Pat Tillman ⓘ |
| officialName | Mike O’Callaghan–Pat Tillman Memorial Bridge NERFINISHED ⓘ |
| opened | 2010 ⓘ |
| partOf |
Hoover Dam Bypass project
NERFINISHED
ⓘ
U.S. highway infrastructure ⓘ |
| purpose | bypass Hoover Dam roadway ⓘ |
| regionServed | Southwestern United States NERFINISHED ⓘ |
| spans | Black Canyon NERFINISHED ⓘ |
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: Colorado River Bridge Description of subject: The Colorado River Bridge, formally known as the Mike O’Callaghan–Pat Tillman Memorial Bridge, is a major arch bridge spanning the Colorado River near Hoover Dam, carrying U.S. Route 93 between Nevada and Arizona.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.