Friant Dam
E62555
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.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Friant Dam canonical | 11 |
How this entity was disambiguated
This entity first appeared as the object of triple T474331 — 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: Friant Dam Context triple: [Central Valley Project, includes, Friant Dam]
-
A.
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.
-
B.
Friant-Kern Canal
The Friant-Kern Canal is a major irrigation and water conveyance canal in California’s San Joaquin Valley that delivers diverted San Joaquin River water to farms and communities across the southern Central Valley.
-
C.
Shasta Dam
Shasta Dam is a large concrete gravity dam on California’s Sacramento River, forming Shasta Lake and serving as a key source of water storage, hydroelectric power, and flood control for the state.
-
D.
Conklingville Dam
Conklingville Dam is a concrete gravity dam in New York that created the Great Sacandaga Lake reservoir for flood control and hydroelectric power generation.
-
E.
Lake Mead
Lake Mead is a large man-made reservoir on the Colorado River in the southwestern United States, known for supplying water and hydroelectric power to millions of people in the region.
- 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: Friant Dam Target entity description: 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.
-
A.
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.
-
B.
Friant-Kern Canal
The Friant-Kern Canal is a major irrigation and water conveyance canal in California’s San Joaquin Valley that delivers diverted San Joaquin River water to farms and communities across the southern Central Valley.
-
C.
Shasta Dam
Shasta Dam is a large concrete gravity dam on California’s Sacramento River, forming Shasta Lake and serving as a key source of water storage, hydroelectric power, and flood control for the state.
-
D.
Conklingville Dam
Conklingville Dam is a concrete gravity dam in New York that created the Great Sacandaga Lake reservoir for flood control and hydroelectric power generation.
-
E.
Lake Mead
Lake Mead is a large man-made reservoir on the Colorado River in the southwestern United States, known for supplying water and hydroelectric power to millions of people in the region.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
concrete gravity dam
ⓘ
dam ⓘ |
| associatedReservoir | Millerton Lake State Recreation Area ⓘ |
| builtBy |
Bureau of Reclamation
ⓘ
surface form:
United States Bureau of Reclamation
|
| completedIn | 1942 ⓘ |
| constructionBegan | 1939 ⓘ |
| constructionEra |
New Deal
ⓘ
surface form:
New Deal era
|
| constructionMaterial | concrete ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| county |
Fresno County
ⓘ
surface form:
Fresno County, California
Madera County, California ⓘ |
| createsReservoir | Millerton Lake ⓘ |
| crestElevation | 173 m above sea level ⓘ |
| crosses | San Joaquin River ⓘ |
| damType | gravity dam ⓘ |
| height |
319 ft
ⓘ
97 m ⓘ |
| latitude | 36.986° N ⓘ |
| length |
1,140 m
ⓘ
3,488 ft ⓘ |
| locatedIn |
California, United States
ⓘ
surface form:
California
|
| locatedNear | Friant, California ⓘ |
| locatedOnRiver | San Joaquin River ⓘ |
| longitude | 119.708° W ⓘ |
| namedAfter | Friant, California ⓘ |
| numberOfTurbines | 3 ⓘ |
| opened | 1942 ⓘ |
| operator |
Bureau of Reclamation
ⓘ
surface form:
United States Bureau of Reclamation
|
| owner |
Bureau of Reclamation
ⓘ
surface form:
United States Bureau of Reclamation
|
| partOf | Central Valley Project ⓘ |
| plantCapacity | 25 MW ⓘ |
| plantType | conventional hydroelectric power plant ⓘ |
| project |
Central Valley Project
ⓘ
surface form:
Central Valley Project Friant Division
|
| provides |
agricultural irrigation water
ⓘ
flood protection for downstream communities ⓘ municipal and industrial water supply ⓘ |
| purpose |
flood control
ⓘ
hydroelectric power generation ⓘ irrigation water supply ⓘ |
| regionServed | San Joaquin Valley ⓘ |
| reservoirCapacity | 520,500 acre-feet ⓘ |
| reservoirSurfaceArea | 4,900 acres ⓘ |
| spillwayCapacity | 83,000 cu ft/s ⓘ |
| spillwayType | overflow ogee crest ⓘ |
| suppliesWaterTo |
Friant-Kern Canal
ⓘ
Madera Canal ⓘ |
| turbineType | Francis turbine ⓘ |
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: Friant Dam Description of subject: 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.
Referenced by (11)
Full triples — surface form annotated when it differs from this entity's canonical label.