Highway 49 bridge at Coloma
E483021
The Highway 49 bridge at Coloma is a road bridge in California’s Gold Country that carries State Route 49 across the South Fork of the American River near the historic Marshall Gold Discovery State Historic Park.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Highway 49 bridge at Coloma canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4957229 — 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: Highway 49 bridge at Coloma Context triple: [South Fork American River, hasBridge, Highway 49 bridge at Coloma]
-
A.
Folsom Lake Crossing
Folsom Lake Crossing is a major bridge and roadway in Folsom, California, that spans the American River near Folsom Lake and provides an alternative route around the Folsom Dam area.
-
B.
Interstate 5 Ship Canal Bridge
The Interstate 5 Ship Canal Bridge is a double-deck steel truss bridge in Seattle that carries Interstate 5 over the Lake Washington Ship Canal between the University District and Eastlake neighborhoods.
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C.
Glendale–Hyperion Bridge
The Glendale–Hyperion Bridge is a historic multi-arch concrete viaduct in Los Angeles that carries traffic over the Los Angeles River, connecting the Atwater Village neighborhood with Silver Lake and Glendale.
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D.
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.
-
E.
Riverside Drive Viaduct
Riverside Drive Viaduct is an elevated steel and concrete roadway structure in Manhattan that carries Riverside Drive above the Amtrak rail lines and low-lying areas along the Hudson 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: Highway 49 bridge at Coloma Target entity description: The Highway 49 bridge at Coloma is a road bridge in California’s Gold Country that carries State Route 49 across the South Fork of the American River near the historic Marshall Gold Discovery State Historic Park.
-
A.
Folsom Lake Crossing
Folsom Lake Crossing is a major bridge and roadway in Folsom, California, that spans the American River near Folsom Lake and provides an alternative route around the Folsom Dam area.
-
B.
Interstate 5 Ship Canal Bridge
The Interstate 5 Ship Canal Bridge is a double-deck steel truss bridge in Seattle that carries Interstate 5 over the Lake Washington Ship Canal between the University District and Eastlake neighborhoods.
-
C.
Glendale–Hyperion Bridge
The Glendale–Hyperion Bridge is a historic multi-arch concrete viaduct in Los Angeles that carries traffic over the Los Angeles River, connecting the Atwater Village neighborhood with Silver Lake and Glendale.
-
D.
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.
-
E.
Riverside Drive Viaduct
Riverside Drive Viaduct is an elevated steel and concrete roadway structure in Manhattan that carries Riverside Drive above the Amtrak rail lines and low-lying areas along the Hudson River.
- F. None of above. chosen
Statements (26)
| Predicate | Object |
|---|---|
| instanceOf |
highway bridge
ⓘ
road bridge ⓘ |
| accesses | Marshall Gold Discovery State Historic Park vicinity ⓘ |
| carries | California State Route 49 NERFINISHED ⓘ |
| connects |
road network on north bank of South Fork American River
ⓘ
road network on south bank of South Fork American River ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| county | El Dorado County NERFINISHED ⓘ |
| crosses | South Fork American River NERFINISHED ⓘ |
| crossesFeature | river ⓘ |
| locatedIn |
California, United States
ⓘ
surface form:
California
Coloma, California NERFINISHED ⓘ El Dorado County, California NERFINISHED ⓘ United States of America ⓘ
surface form:
United States
|
| locatedInRegion | California Gold Country NERFINISHED ⓘ |
| namedAfter | California State Route 49 NERFINISHED ⓘ |
| near | Marshall Gold Discovery State Historic Park NERFINISHED ⓘ |
| onRoute | State Route 49 NERFINISHED ⓘ |
| partOf | California State Route 49 corridor NERFINISHED ⓘ |
| regionServed |
California Gold Country
NERFINISHED
ⓘ
Coloma area ⓘ |
| riverCrossed | South Fork of the American River NERFINISHED ⓘ |
| roadType | state highway bridge ⓘ |
| state |
California, United States
ⓘ
surface form:
California
|
| usedFor |
pedestrian traffic
ⓘ
vehicular 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: Highway 49 bridge at Coloma Description of subject: The Highway 49 bridge at Coloma is a road bridge in California’s Gold Country that carries State Route 49 across the South Fork of the American River near the historic Marshall Gold Discovery State Historic Park.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.