No Hands Bridge
E650506
No Hands Bridge is a historic concrete arch bridge spanning the American River near Auburn, California, now popular with hikers and cyclists in the Auburn State Recreation Area.
All labels observed (1)
| Label | Occurrences |
|---|---|
| No Hands Bridge canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7240795 — 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: No Hands Bridge Context triple: [Auburn State Recreation Area, hasPointOfInterest, No Hands Bridge]
-
A.
Manette Bridge
Manette Bridge is a road bridge in Bremerton, Washington, that spans the Port Washington Narrows and connects the city’s downtown area with the Manette neighborhood.
-
B.
Knife-Edge Bridge
Knife-Edge Bridge is a narrow pedestrian bridge and viewing point that offers dramatic, close-up vistas of Victoria Falls and the surrounding gorge.
-
C.
Skinny Bridge
Skinny Bridge is a famous historic wooden drawbridge over the Amstel River in Amsterdam, renowned for its picturesque views and traditional Dutch design.
-
D.
Sky Bridge
Sky Bridge is an elevated pedestrian bridge in Darwin, Australia, linking the city centre to the popular Darwin Waterfront Precinct.
-
E.
Glass Bridge
Glass Bridge is a transparent pedestrian bridge, typically made with glass panels to create a thrilling walking experience with views of the scenery below.
- 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: No Hands Bridge Target entity description: No Hands Bridge is a historic concrete arch bridge spanning the American River near Auburn, California, now popular with hikers and cyclists in the Auburn State Recreation Area.
-
A.
Manette Bridge
Manette Bridge is a road bridge in Bremerton, Washington, that spans the Port Washington Narrows and connects the city’s downtown area with the Manette neighborhood.
-
B.
Knife-Edge Bridge
Knife-Edge Bridge is a narrow pedestrian bridge and viewing point that offers dramatic, close-up vistas of Victoria Falls and the surrounding gorge.
-
C.
Skinny Bridge
Skinny Bridge is a famous historic wooden drawbridge over the Amstel River in Amsterdam, renowned for its picturesque views and traditional Dutch design.
-
D.
Sky Bridge
Sky Bridge is an elevated pedestrian bridge in Darwin, Australia, linking the city centre to the popular Darwin Waterfront Precinct.
-
E.
Glass Bridge
Glass Bridge is a transparent pedestrian bridge, typically made with glass panels to create a thrilling walking experience with views of the scenery below.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
concrete arch bridge
ⓘ
historic bridge ⓘ |
| access | open to the public ⓘ |
| alsoKnownAs |
American River Quarry Bridge
ⓘ
Mountain Quarries Bridge ⓘ Mountain Quarry Cement Bridge ⓘ |
| architectEngineer | John B. Leonard ⓘ |
| builder |
Pacific Portland Cement Company
ⓘ
linked to:
Pacific Cement and Aggregates
|
| category |
Bridges in Placer County, California
ⓘ
Pedestrian bridges in California ⓘ Railroad bridges in California ⓘ |
| clearanceAboveWater | about 70 feet ⓘ |
| clearSpan | about 150 feet ⓘ |
| constructionStartDate | 1910 ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| crosses |
American River
ⓘ
linked to:
American River (California)
North Fork American River ⓘ |
| designedFor | railroad use ⓘ |
| heritageStatus | listed on the National Register of Historic Places ⓘ |
| historicDesignationLevel | federal ⓘ |
| historicUse | transport of limestone from quarries ⓘ |
| length | approximately 482 feet ⓘ |
| locatedIn |
Auburn State Recreation Area
ⓘ
California ⓘ
linked to:
California, United States
Placer County, California ⓘ
linked to:
Placer County
United States ⓘ
linked to:
United States of America
|
| locatedNear | Auburn, California ⓘ |
| managedBy | Auburn State Recreation Area ⓘ |
| material | reinforced concrete ⓘ |
| NRHPType | structure ⓘ |
| numberOfSpans | 3 ⓘ |
| opened | 1912 ⓘ |
| originalFunction | railroad bridge for the Mountain Quarries Railroad ⓘ |
| owner | California Department of Parks and Recreation ⓘ |
| partOf |
Auburn State Recreation Area trail system
ⓘ
linked to:
Auburn State Recreation Area
|
| popularWith |
cyclists
ⓘ
hikers ⓘ |
| railroadServed | Mountain Quarries Railroad ⓘ |
| region | Sierra Nevada foothills ⓘ |
| riverBranch |
North Fork of the American River
ⓘ
linked to:
North Fork American River
|
| significance | early example of large reinforced-concrete arch railroad bridge ⓘ |
| state |
California
ⓘ
linked to:
California, United States
|
| structureType | open-spandrel deck arch bridge ⓘ |
| traffic | no motor vehicles ⓘ |
| trailAccess |
Tevis Cup trail route
ⓘ
Western States Trail ⓘ |
| usedFor |
bicycle traffic
ⓘ
pedestrian 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: No Hands Bridge Description of subject: No Hands Bridge is a historic concrete arch bridge spanning the American River near Auburn, California, now popular with hikers and cyclists in the Auburn State Recreation Area.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.