Keenleyside Dam
E389223
Keenleyside Dam is a major hydroelectric and flood-control dam on the Columbia River in British Columbia, Canada, forming part of the region’s large transboundary water management system.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Keenleyside Dam canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3695870 — 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: Keenleyside Dam Context triple: [Columbia River hydropower system, includesFacility, Keenleyside Dam]
-
A.
Keswick Dam
Keswick Dam is a concrete gravity dam on the Sacramento River in Northern California that regulates flows and generates hydroelectric power as part of the region’s large federal water management system.
-
B.
Cluny Dam
Cluny Dam is a hydroelectric dam on Tasmania’s Derwent River that forms part of the state’s power generation and water management system.
-
C.
Tulloch Dam
Tulloch Dam is a concrete gravity dam on the Stanislaus River in California that forms Tulloch Reservoir for irrigation, hydroelectric power generation, and recreation.
-
D.
Feildes Weir
Feildes Weir is a historic river weir on the River Lea in England, used to control water levels and flow for navigation and water management.
-
E.
O’Sullivan Dam
O’Sullivan Dam is a major earth-fill dam in central Washington State that forms Potholes Reservoir and plays a key role in irrigation and water management for the Columbia Basin 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: Keenleyside Dam Target entity description: Keenleyside Dam is a major hydroelectric and flood-control dam on the Columbia River in British Columbia, Canada, forming part of the region’s large transboundary water management system.
-
A.
Keswick Dam
Keswick Dam is a concrete gravity dam on the Sacramento River in Northern California that regulates flows and generates hydroelectric power as part of the region’s large federal water management system.
-
B.
Cluny Dam
Cluny Dam is a hydroelectric dam on Tasmania’s Derwent River that forms part of the state’s power generation and water management system.
-
C.
Tulloch Dam
Tulloch Dam is a concrete gravity dam on the Stanislaus River in California that forms Tulloch Reservoir for irrigation, hydroelectric power generation, and recreation.
-
D.
Feildes Weir
Feildes Weir is a historic river weir on the River Lea in England, used to control water levels and flow for navigation and water management.
-
E.
O’Sullivan Dam
O’Sullivan Dam is a major earth-fill dam in central Washington State that forms Potholes Reservoir and plays a key role in irrigation and water management for the Columbia Basin Project.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
flood control dam
ⓘ
gravity dam ⓘ hydroelectric dam ⓘ |
| affects | Columbia River flows into the United States ⓘ |
| alsoKnownAs |
Arrow Dam
NERFINISHED
ⓘ
Hugh Keenleyside Dam NERFINISHED ⓘ |
| commissioningDate | 1968 ⓘ |
| constructionStartDate | 1965 ⓘ |
| country | Canada ⓘ |
| creates |
Lower Arrow Lake
ⓘ
surface form:
Lower Arrow Lake reservoir
Arrow Lakes reservoir ⓘ
surface form:
Upper Arrow Lake reservoir
|
| enables | navigation between Castlegar and Revelstoke via Arrow Lakes ⓘ |
| governedBy | Columbia River Treaty ⓘ |
| hasNavigationLock | yes ⓘ |
| hasPowerPlant | Arrow Lakes Generating Station ⓘ |
| height | about 52 metres ⓘ |
| impact |
inundation of communities in the Arrow Lakes valley
ⓘ
regulation of downstream flood risk in the United States ⓘ |
| impounds |
Arrow Lakes reservoir
ⓘ
surface form:
Arrow Lakes Reservoir
|
| length | about 853 metres ⓘ |
| locatedDownstreamOf |
Mica Dam reservoir
ⓘ
surface form:
Mica Dam
|
| locatedIn | British Columbia ⓘ |
| locatedInBasin | Columbia River Basin ⓘ |
| locatedInRegion | West Kootenay ⓘ |
| locatedNear | Castlegar, British Columbia ⓘ |
| locatedOnRiver | Columbia River ⓘ |
| locatedUpstreamOf | Revelstoke Dam ⓘ |
| namedAfter | Hugh Llewellyn Keenleyside ⓘ |
| nearbyCity |
Castlegar, British Columbia
ⓘ
surface form:
Castlegar
|
| nearbyCommunity | Robson, British Columbia ⓘ |
| numberOfTurbines | 2 ⓘ |
| openingDate | 1968 ⓘ |
| operator | BC Hydro ⓘ |
| owner | BC Hydro ⓘ |
| partOf |
Columbia River Treaty
ⓘ
surface form:
Columbia River Treaty projects
transboundary water management system between Canada and the United States ⓘ |
| powerPlantCapacity | about 185 megawatts ⓘ |
| powerPlantCommissioningDate | 2002 ⓘ |
| powerPlantOperator |
Columbia Basin Trust
ⓘ
Columbia Power Corporation ⓘ |
| powerPlantType | run-of-river hydroelectric station ⓘ |
| purpose |
flood control
ⓘ
flow regulation on the Columbia River ⓘ hydroelectric power generation ⓘ |
| region | Interior of British Columbia ⓘ |
| reservoirSurfaceArea | about 230 square kilometres ⓘ |
| reservoirTotalCapacity | about 8.76 cubic kilometres ⓘ |
| spillwayType | gated overflow spillway ⓘ |
| turbineType | Kaplan turbines ⓘ |
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: Keenleyside Dam Description of subject: Keenleyside Dam is a major hydroelectric and flood-control dam on the Columbia River in British Columbia, Canada, forming part of the region’s large transboundary water management system.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.