Black Hawk Bridge
E711816
Black Hawk Bridge is a historic steel truss bridge spanning the Mississippi River between Iowa and Wisconsin, notable for its distinctive cantilever design and scenic river crossing.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Black Hawk Bridge canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8093294 — 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: Black Hawk Bridge Context triple: [Iowa Highway 9, crossesVia, Black Hawk Bridge]
-
A.
Crown Point Bridge
Crown Point Bridge is a highway bridge that spans Lake Champlain, connecting Crown Point, New York, with Vermont.
-
B.
Baldhead Bridge
Baldhead Bridge is a classic roots reggae album by the Jamaican band Culture, known for its spiritually charged lyrics and harmonies.
-
C.
Chain of Rocks Bridge
Chain of Rocks Bridge is a historic Mississippi River crossing near St. Louis, famous for its distinctive 22-degree bend and its role as a landmark along the former U.S. Route 66.
-
D.
Rock River bridge
Rock River bridge is a notable local bridge in Rock Rapids, Iowa, spanning the Rock River and serving as an important transportation and community landmark.
-
E.
Joy Covered Bridge
Joy Covered Bridge is a historic wooden covered bridge in Blount County, Alabama, noted as one of the state’s longest and most picturesque surviving covered bridges.
- 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: Black Hawk Bridge Target entity description: Black Hawk Bridge is a historic steel truss bridge spanning the Mississippi River between Iowa and Wisconsin, notable for its distinctive cantilever design and scenic river crossing.
-
A.
Crown Point Bridge
Crown Point Bridge is a highway bridge that spans Lake Champlain, connecting Crown Point, New York, with Vermont.
-
B.
Baldhead Bridge
Baldhead Bridge is a classic roots reggae album by the Jamaican band Culture, known for its spiritually charged lyrics and harmonies.
-
C.
Chain of Rocks Bridge
Chain of Rocks Bridge is a historic Mississippi River crossing near St. Louis, famous for its distinctive 22-degree bend and its role as a landmark along the former U.S. Route 66.
-
D.
Rock River bridge
Rock River bridge is a notable local bridge in Rock Rapids, Iowa, spanning the Rock River and serving as an important transportation and community landmark.
-
E.
Joy Covered Bridge
Joy Covered Bridge is a historic wooden covered bridge in Blount County, Alabama, noted as one of the state’s longest and most picturesque surviving covered bridges.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
cantilever bridge
ⓘ
road bridge ⓘ steel bridge ⓘ truss bridge ⓘ |
| alsoKnownAs | Lansing Bridge NERFINISHED ⓘ |
| carries |
Iowa Highway 9
NERFINISHED
ⓘ
Wisconsin State Highway 82 NERFINISHED ⓘ road traffic ⓘ |
| connects |
Crawford County, Wisconsin
NERFINISHED
ⓘ
Lansing, Iowa NERFINISHED ⓘ |
| constructionStartDate | 1929 ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| crosses | Mississippi River NERFINISHED ⓘ |
| design | cantilever through truss ⓘ |
| hasApproach |
Iowa riverbank
ⓘ
Wisconsin riverbank ⓘ |
| hasDeckType | open-grid steel deck ⓘ |
| hasHeritageStatus | considered historic by local communities ⓘ |
| hasMainSpanLength | approx. 595 feet ⓘ |
| hasNavigationClearance | allows river barge traffic ⓘ |
| hasNumberOfSpans | 3 ⓘ |
| hasOwner |
State of Iowa
NERFINISHED
ⓘ
State of Wisconsin NERFINISHED ⓘ |
| hasRoadwayWidth | narrow two-lane deck ⓘ |
| hasStructureType | riveted steel truss ⓘ |
| hasTollStatus | toll-free ⓘ |
| hasTotalLength | approx. 1,653 feet ⓘ |
| isLandmarkOf |
Crawford County, Wisconsin
NERFINISHED
ⓘ
Lansing, Iowa NERFINISHED ⓘ |
| locatedIn |
Iowa
ⓘ
United States of America ⓘ
surface form:
United States
Wisconsin ⓘ |
| locatedNear | Upper Mississippi River National Wildlife and Fish Refuge NERFINISHED ⓘ |
| maintainedBy |
Iowa Department of Transportation
NERFINISHED
ⓘ
Wisconsin Department of Transportation NERFINISHED ⓘ |
| material | steel ⓘ |
| namedAfter | Black Hawk NERFINISHED ⓘ |
| notableFor |
distinctive cantilever truss design
ⓘ
scenic Mississippi River crossing ⓘ |
| opened | 1931 ⓘ |
| partOf | Mississippi River crossing system ⓘ |
| region | Upper Mississippi River NERFINISHED ⓘ |
| status | in use ⓘ |
| trafficType | vehicular traffic ⓘ |
| usedFor | regional transportation ⓘ |
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: Black Hawk Bridge Description of subject: Black Hawk Bridge is a historic steel truss bridge spanning the Mississippi River between Iowa and Wisconsin, notable for its distinctive cantilever design and scenic river crossing.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.