Pine Flat Dam
E235392
Pine Flat Dam is a large concrete gravity dam in California that creates Pine Flat Lake and provides flood control, irrigation water storage, and hydroelectric power on the Kings River.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Pine Flat Dam canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T1952265 — 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: Pine Flat Dam Context triple: [Kings River, hasDam, Pine Flat Dam]
-
A.
Perris Dam
Perris Dam is a large earthfill embankment dam in Riverside County, California, that forms Lake Perris as part of the state’s major water storage and distribution system.
-
B.
Castaic Dam
Castaic Dam is a large embankment dam in Los Angeles County, California, that forms Castaic Lake and plays a key role in water storage and hydroelectric power generation for Southern California.
-
C.
Red Rock Dam
Red Rock Dam is a large flood-control and hydroelectric dam on the Des Moines River in central Iowa, forming Lake Red Rock as the state’s largest reservoir.
-
D.
Folsom Dam
Folsom Dam is a large concrete dam on the American River in California that provides flood control, water storage, and hydroelectric power for the Sacramento region.
-
E.
Friant Dam
Friant Dam is a major concrete gravity dam on California's San Joaquin River that provides irrigation water, flood control, and hydroelectric power as part of the federal Central Valley Project.
- 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: Pine Flat Dam Target entity description: Pine Flat Dam is a large concrete gravity dam in California that creates Pine Flat Lake and provides flood control, irrigation water storage, and hydroelectric power on the Kings River.
-
A.
Perris Dam
Perris Dam is a large earthfill embankment dam in Riverside County, California, that forms Lake Perris as part of the state’s major water storage and distribution system.
-
B.
Castaic Dam
Castaic Dam is a large embankment dam in Los Angeles County, California, that forms Castaic Lake and plays a key role in water storage and hydroelectric power generation for Southern California.
-
C.
Red Rock Dam
Red Rock Dam is a large flood-control and hydroelectric dam on the Des Moines River in central Iowa, forming Lake Red Rock as the state’s largest reservoir.
-
D.
Folsom Dam
Folsom Dam is a large concrete dam on the American River in California that provides flood control, water storage, and hydroelectric power for the Sacramento region.
-
E.
Friant Dam
Friant Dam is a major concrete gravity dam on California's San Joaquin River that provides irrigation water, flood control, and hydroelectric power as part of the federal Central Valley Project.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
concrete gravity dam
ⓘ
dam ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| constructionMaterial | concrete ⓘ |
| constructionStartDate | 1947 ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| county | Fresno County, California NERFINISHED ⓘ |
| createsReservoir | Pine Flat Lake ⓘ |
| damType | gravity dam ⓘ |
| elevationOfCrest | approximately 951 feet above sea level ⓘ |
| energySource | hydropower ⓘ |
| floodControlRole | reduces flooding risk downstream on the Kings River ⓘ |
| hasHydroelectricPlant | Pine Flat Power Plant ⓘ |
| hasSpillway | yes ⓘ |
| hasTurbineType | Francis turbines ⓘ |
| height |
approximately 130 meters
ⓘ
approximately 429 feet ⓘ |
| hydraulicHead | high-head ⓘ |
| length | approximately 1,820 feet ⓘ |
| locatedIn |
California, United States
ⓘ
surface form:
California
|
| locatedNear |
Piedra, California
ⓘ
Sanger, California ⓘ |
| locatedOnRiver | Kings River ⓘ |
| managingAgency |
U.S. Army Corps of Engineers
ⓘ
surface form:
United States Army Corps of Engineers
|
| nearMountainRange |
Sierra Nevada
ⓘ
surface form:
Sierra Nevada (California)
|
| nearProtectedArea | Sierra National Forest ⓘ |
| openingDate | 1954 ⓘ |
| operator | United States Army Corps of Engineers Sacramento District ⓘ |
| ownedBy | United States government ⓘ |
| partOf | Central Valley water management system ⓘ |
| primaryFunction | flood control on the Kings River ⓘ |
| purpose |
flood control
ⓘ
hydroelectric power generation ⓘ irrigation water storage ⓘ |
| region | San Joaquin Valley ⓘ |
| reservoirCapacity |
approximately 1,000,000 acre-feet
ⓘ
approximately 1.24 cubic kilometers ⓘ |
| reservoirName | Pine Flat Lake ⓘ |
| reservoirUse |
fish and wildlife habitat
ⓘ
recreation ⓘ water storage ⓘ |
| riverBasin |
Kings River
ⓘ
surface form:
Kings River basin
|
| secondaryFunction |
hydropower generation
ⓘ
irrigation water supply ⓘ |
| state |
California, United States
ⓘ
surface form:
California
|
| supportsUse |
agricultural irrigation
ⓘ
recreation on Pine Flat Lake ⓘ |
| watercourseDammed | Kings River ⓘ |
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: Pine Flat Dam Description of subject: Pine Flat Dam is a large concrete gravity dam in California that creates Pine Flat Lake and provides flood control, irrigation water storage, and hydroelectric power on the Kings River.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Kings River