Trinity Dam
E62793
Trinity Dam is a major earthfill dam on the Trinity River in Northern California, forming Trinity Lake and providing water storage, hydroelectric power, and flood control as part of the state’s large federal water management system.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Trinity Dam canonical | 6 |
How this entity was disambiguated
This entity first appeared as the object of triple T474332 — 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: Trinity Dam Context triple: [Central Valley Project, includes, Trinity Dam]
-
A.
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.
-
B.
Croton Falls Dam
Croton Falls Dam is a masonry gravity dam in Westchester County, New York, that forms the Croton Falls Reservoir as part of New York City’s water supply system.
-
C.
Great Stone Dam
The Great Stone Dam is a historic 19th-century granite dam in Lawrence, Massachusetts, built to harness the Merrimack River for industrial waterpower and central to the city’s mill-era development.
-
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.
Eder Dam
Eder Dam is a major German gravity dam in the Eder River valley, historically known for being one of the dams breached by the RAF’s “Dambusters” raid during World War II.
- 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: Trinity Dam Target entity description: Trinity Dam is a major earthfill dam on the Trinity River in Northern California, forming Trinity Lake and providing water storage, hydroelectric power, and flood control as part of the state’s large federal water management system.
-
A.
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.
-
B.
Croton Falls Dam
Croton Falls Dam is a masonry gravity dam in Westchester County, New York, that forms the Croton Falls Reservoir as part of New York City’s water supply system.
-
C.
Great Stone Dam
The Great Stone Dam is a historic 19th-century granite dam in Lawrence, Massachusetts, built to harness the Merrimack River for industrial waterpower and central to the city’s mill-era development.
-
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.
Eder Dam
Eder Dam is a major German gravity dam in the Eder River valley, historically known for being one of the dams breached by the RAF’s “Dambusters” raid during World War II.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
earthfill dam
ⓘ
embankment dam ⓘ |
| associatedWithRiverRestorationIssues | Trinity River environmental flows ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| completedIn | 1962 ⓘ |
| constructionBegan | 1957 ⓘ |
| constructionFundedBy |
United States government
ⓘ
surface form:
federal government of the United States
|
| country |
United States of America
ⓘ
surface form:
United States
|
| crestElevation | approximately 2,405 feet above sea level ⓘ |
| divertsWaterTo | Sacramento River Basin ⓘ |
| formsReservoir | Trinity Lake ⓘ |
| foundationType | rock foundation ⓘ |
| hasOutletWorks | river outlet and powerplant intakes ⓘ |
| hasPowerPlant | Trinity Powerplant ⓘ |
| height | approximately 538 feet ⓘ |
| heightFromFoundation | approximately 538 feet ⓘ |
| isMajorComponentOf | federal water management system in California ⓘ |
| length | approximately 2,450 feet ⓘ |
| locatedIn | Trinity County, California ⓘ |
| locatedInMountainRange |
Klamath Mountains
ⓘ
surface form:
Klamath Mountains region
|
| locatedInRegion | Northern California ⓘ |
| locatedOnRiver | Trinity River ⓘ |
| managingAgency |
United States Department of the Interior
ⓘ
surface form:
U.S. Department of the Interior
|
| material | earth and rockfill ⓘ |
| namedReservoirAfter | U.S. Senator Clair Engle ⓘ |
| nearCity |
Lewiston, California
ⓘ
Weaverville, California ⓘ |
| openedIn | 1962 ⓘ |
| operatedBy |
Bureau of Reclamation
ⓘ
surface form:
United States Bureau of Reclamation
|
| ownedBy |
Bureau of Reclamation
ⓘ
surface form:
United States Bureau of Reclamation
|
| partOf | Central Valley Project ⓘ |
| partOfProject |
Central Valley Project
ⓘ
surface form:
Trinity River Division of the Central Valley Project
|
| powerPlantCapacity | approximately 140 megawatts ⓘ |
| providesFloodControlFor | Trinity River ⓘ |
| purpose |
flood control
ⓘ
hydroelectric power generation ⓘ irrigation water supply ⓘ municipal and industrial water supply ⓘ recreation support ⓘ water storage ⓘ |
| reservoirAlsoKnownAs | Clair Engle Lake ⓘ |
| reservoirName | Trinity Lake ⓘ |
| reservoirSurfaceArea | approximately 25,000 acres ⓘ |
| reservoirTotalCapacity | approximately 2,448,000 acre-feet ⓘ |
| spillwayType | gated overflow spillway ⓘ |
| supportsRecreationOn | Trinity Lake ⓘ |
| waterStoredUsedFor |
agricultural irrigation in Central Valley
ⓘ
urban water supply in Central Valley ⓘ |
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: Trinity Dam Description of subject: Trinity Dam is a major earthfill dam on the Trinity River in Northern California, forming Trinity Lake and providing water storage, hydroelectric power, and flood control as part of the state’s large federal water management system.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.