New Hogan Dam
E783453
New Hogan Dam is a concrete gravity dam in Calaveras County, California, built for flood control, water storage, and recreation on the Calaveras River.
All labels observed (1)
| Label | Occurrences |
|---|---|
| New Hogan Dam canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9204665 — 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: New Hogan Dam Context triple: [Calaveras River, hasDam, New Hogan Dam]
-
A.
Harriman Dam
Harriman Dam is a hydroelectric dam in Vermont that impounds the Deerfield River to form Harriman Reservoir, one of the state’s largest lakes.
-
B.
R. L. Harris Dam
R. L. Harris Dam is a hydroelectric dam in Alabama that impounds the Tallapoosa River to form Lake Wedowee and generate power.
-
C.
Hinckley Dam
Hinckley Dam is a large reservoir dam in upstate New York that impounds West Canada Creek to provide water supply, flood control, and recreation for the surrounding region.
-
D.
South Holston Dam
South Holston Dam is a large Tennessee Valley Authority hydroelectric and flood-control dam on the South Fork Holston River in northeastern Tennessee.
-
E.
Hartwell Dam
Hartwell Dam is a large hydroelectric and flood-control dam on the Savannah River that creates Lake Hartwell along the Georgia–South Carolina border.
- 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: New Hogan Dam Target entity description: New Hogan Dam is a concrete gravity dam in Calaveras County, California, built for flood control, water storage, and recreation on the Calaveras River.
-
A.
Harriman Dam
Harriman Dam is a hydroelectric dam in Vermont that impounds the Deerfield River to form Harriman Reservoir, one of the state’s largest lakes.
-
B.
R. L. Harris Dam
R. L. Harris Dam is a hydroelectric dam in Alabama that impounds the Tallapoosa River to form Lake Wedowee and generate power.
-
C.
Hinckley Dam
Hinckley Dam is a large reservoir dam in upstate New York that impounds West Canada Creek to provide water supply, flood control, and recreation for the surrounding region.
-
D.
South Holston Dam
South Holston Dam is a large Tennessee Valley Authority hydroelectric and flood-control dam on the South Fork Holston River in northeastern Tennessee.
-
E.
Hartwell Dam
Hartwell Dam is a large hydroelectric and flood-control dam on the Savannah River that creates Lake Hartwell along the Georgia–South Carolina border.
- F. None of above. chosen
Statements (36)
| Predicate | Object |
|---|---|
| instanceOf |
concrete gravity dam
ⓘ
dam ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| constructionBegan | 1960 ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| createsReservoir | New Hogan Lake NERFINISHED ⓘ |
| crosses | Calaveras River NERFINISHED ⓘ |
| damType | gravity dam ⓘ |
| designedFor | flood protection for communities along the Calaveras River ⓘ |
| hasRecreationalActivity |
boating
ⓘ
camping ⓘ fishing ⓘ hiking ⓘ |
| hasSpillway | yes ⓘ |
| height | approximately 210 feet ⓘ |
| impounds | Calaveras River NERFINISHED ⓘ |
| length | approximately 1,960 feet ⓘ |
| locatedIn |
Calaveras County, California
NERFINISHED
ⓘ
California, United States ⓘ
surface form:
California
United States of America ⓘ
surface form:
United States
|
| managingAgency | United States Army Corps of Engineers Sacramento District NERFINISHED ⓘ |
| material | concrete ⓘ |
| nearCity | Valley Springs, California NERFINISHED ⓘ |
| openingYear | 1963 ⓘ |
| operator | United States Army Corps of Engineers NERFINISHED ⓘ |
| owner | United States Army Corps of Engineers NERFINISHED ⓘ |
| partOf | Calaveras River Project NERFINISHED ⓘ |
| purpose |
flood control
ⓘ
recreation ⓘ water storage ⓘ |
| region | Central Valley of California NERFINISHED ⓘ |
| reservoirCapacity | approximately 317,000 acre-feet ⓘ |
| reservoirName | New Hogan Lake NERFINISHED ⓘ |
| river | Calaveras River NERFINISHED ⓘ |
| waterUse |
irrigation
ⓘ
municipal water supply ⓘ |
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: New Hogan Dam Description of subject: New Hogan Dam is a concrete gravity dam in Calaveras County, California, built for flood control, water storage, and recreation on the Calaveras River.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.