San Luis Dam
E328777
San Luis Dam is a major earthfill embankment dam in California that impounds the San Luis Reservoir, one of the largest off-stream storage reservoirs in the United States.
All labels observed (1)
| Label | Occurrences |
|---|---|
| San Luis Dam canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T3109154 — 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: San Luis Dam Context triple: [San Luis Reservoir, createdBy, San Luis Dam]
-
A.
La Mesa Dam
La Mesa Dam is a major water reservoir in Quezon City, Philippines, that supplies a significant portion of Metro Manila’s drinking water.
-
B.
Roosevelt Dam
Roosevelt Dam is a historic masonry and concrete arch dam on Arizona’s Salt River, built in the early 20th century to provide water storage, flood control, and hydroelectric power for the region.
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C.
Pine Flat Dam
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.
-
D.
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.
-
E.
San Luis Reservoir
San Luis Reservoir is a large artificial lake in California that serves as a major water storage facility for irrigation and municipal use in the state’s Central Valley.
- 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: San Luis Dam Target entity description: San Luis Dam is a major earthfill embankment dam in California that impounds the San Luis Reservoir, one of the largest off-stream storage reservoirs in the United States.
-
A.
La Mesa Dam
La Mesa Dam is a major water reservoir in Quezon City, Philippines, that supplies a significant portion of Metro Manila’s drinking water.
-
B.
Roosevelt Dam
Roosevelt Dam is a historic masonry and concrete arch dam on Arizona’s Salt River, built in the early 20th century to provide water storage, flood control, and hydroelectric power for the region.
-
C.
Pine Flat Dam
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.
-
D.
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.
-
E.
San Luis Reservoir
San Luis Reservoir is a large artificial lake in California that serves as a major water storage facility for irrigation and municipal use in the state’s Central Valley.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
earthfill embankment dam
ⓘ
off-stream storage dam ⓘ |
| alsoKnownAs | B.F. Sisk Dam ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| connectedTo |
California Aqueduct
ⓘ
Delta-Mendota Canal ⓘ
surface form:
Delta–Mendota Canal
|
| constructionBegan | 1963 ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| crestElevation | about 544 feet above sea level ⓘ |
| damType |
earthfill
ⓘ
embankment ⓘ |
| engineering | earth and rockfill construction ⓘ |
| hasSpillway | yes ⓘ |
| hazardPotential | high ⓘ |
| height | about 382 feet ⓘ |
| impounds | San Luis Reservoir ⓘ |
| isOneOf | largest off-stream reservoirs in the United States ⓘ |
| length | about 18,600 feet ⓘ |
| locatedIn |
California, United States
ⓘ
surface form:
California
Merced County, California NERFINISHED ⓘ near Los Banos, California ⓘ |
| locatedInProtectedArea |
San Luis Reservoir
ⓘ
surface form:
San Luis Reservoir State Recreation Area
|
| namedFor | Bernardo Flores Sisk ⓘ |
| nearHighway | California State Route 152 ⓘ |
| opened | 1967 ⓘ |
| operator |
California Department of Water Resources
ⓘ
Bureau of Reclamation ⓘ
surface form:
United States Bureau of Reclamation
|
| owner |
California Department of Water Resources
ⓘ
Bureau of Reclamation ⓘ
surface form:
United States Bureau of Reclamation
|
| partOf |
State Water Project
ⓘ
surface form:
California State Water Project
Central Valley Project ⓘ San Luis Unit ⓘ |
| purpose |
industrial water supply
ⓘ
irrigation water supply ⓘ municipal water supply ⓘ water storage ⓘ |
| reservoirCapacity | about 2,041,000 acre-feet ⓘ |
| reservoirElevation | about 544 feet ⓘ |
| reservoirName | San Luis Reservoir ⓘ |
| reservoirSurfaceArea | about 12,700 acres ⓘ |
| reservoirUse | carryover storage for CVP and SWP ⓘ |
| river | San Luis Creek ⓘ |
| spillwayType | overflow ⓘ |
| status | operational ⓘ |
| suppliesWaterTo |
San Joaquin Valley
ⓘ
Santa Clara Valley ⓘ |
| waterProject |
State Water Project
ⓘ
surface form:
California State Water Project
Central Valley Project ⓘ |
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: San Luis Dam Description of subject: San Luis Dam is a major earthfill embankment dam in California that impounds the San Luis Reservoir, one of the largest off-stream storage reservoirs in the United States.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.