Petaluma River Bridge (railroad)
E753643
Petaluma River Bridge (railroad) is a historic movable railroad bridge in Petaluma, California, that carries train traffic across the Petaluma River.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Petaluma River Bridge (State Route 37) | 1 |
| Petaluma River Bridge (railroad) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8709575 — 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: Petaluma River Bridge (railroad) Context triple: [Petaluma River, hasBridge, Petaluma River Bridge (railroad)]
-
A.
Oregon Slough Railroad Bridge
The Oregon Slough Railroad Bridge is a historic swing-span railway bridge in Portland, Oregon, carrying freight and passenger trains across the North Portland Harbor channel of the Columbia River.
-
B.
Rogue River bridge
The Rogue River Bridge is a historic concrete arch bridge in Gold Beach, Oregon, that carries U.S. Route 101 across the Rogue River along the Pacific coast.
-
C.
Bixby Creek Bridge
Bixby Creek Bridge is an iconic reinforced-concrete arch bridge along California’s scenic Highway 1, renowned for its dramatic coastal setting and frequent appearance in photography and film.
-
D.
Umpqua River Bridge
The Umpqua River Bridge is a historic Oregon coastal highway bridge noted for its elegant Art Deco detailing and reinforced-concrete arch design.
-
E.
Strawberry Creek bridge
Strawberry Creek bridge is a pedestrian bridge on the UC Berkeley campus that spans Strawberry Creek near Sather Gate, serving as a key walkway between central campus areas.
- 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: Petaluma River Bridge (railroad) Target entity description: Petaluma River Bridge (railroad) is a historic movable railroad bridge in Petaluma, California, that carries train traffic across the Petaluma River.
-
A.
Oregon Slough Railroad Bridge
The Oregon Slough Railroad Bridge is a historic swing-span railway bridge in Portland, Oregon, carrying freight and passenger trains across the North Portland Harbor channel of the Columbia River.
-
B.
Rogue River bridge
The Rogue River Bridge is a historic concrete arch bridge in Gold Beach, Oregon, that carries U.S. Route 101 across the Rogue River along the Pacific coast.
-
C.
Bixby Creek Bridge
Bixby Creek Bridge is an iconic reinforced-concrete arch bridge along California’s scenic Highway 1, renowned for its dramatic coastal setting and frequent appearance in photography and film.
-
D.
Umpqua River Bridge
The Umpqua River Bridge is a historic Oregon coastal highway bridge noted for its elegant Art Deco detailing and reinforced-concrete arch design.
-
E.
Strawberry Creek bridge
Strawberry Creek bridge is a pedestrian bridge on the UC Berkeley campus that spans Strawberry Creek near Sather Gate, serving as a key walkway between central campus areas.
- F. None of above. chosen
Statements (28)
| Predicate | Object |
|---|---|
| instanceOf |
historic bridge
ⓘ
movable bridge ⓘ railroad bridge ⓘ truss bridge ⓘ |
| carries |
freight trains
ⓘ
railroad traffic ⓘ |
| category |
Bridges in Sonoma County, California
ⓘ
Movable bridges in the United States ⓘ Railroad bridges in California ⓘ Truss bridges in the United States ⓘ |
| connects | rail lines on opposite banks of the Petaluma River ⓘ |
| crosses | Petaluma River NERFINISHED ⓘ |
| function | to carry trains across the Petaluma River ⓘ |
| hasDesign |
movable span
ⓘ
truss superstructure ⓘ |
| hasFeature |
mechanism to open for river traffic
ⓘ
single-track railroad deck ⓘ |
| locatedIn |
California, United States
ⓘ
surface form:
California
Petaluma, California NERFINISHED ⓘ Sonoma County, California NERFINISHED ⓘ United States of America ⓘ
surface form:
United States
|
| material | steel ⓘ |
| notableFor |
historic railroad engineering
ⓘ
movable span over a tidal river ⓘ |
| partOf | rail network in Sonoma County ⓘ |
| spans | navigable section of the Petaluma River ⓘ |
| usedBy | railroad companies ⓘ |
| usedSince | early 20th century ⓘ |
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: Petaluma River Bridge (railroad) Description of subject: Petaluma River Bridge (railroad) is a historic movable railroad bridge in Petaluma, California, that carries train traffic across the Petaluma River.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Petaluma River Bridge (State Route 37)