Bearspaw Dam
E686807
Bearspaw Dam is a hydroelectric and water-control structure on the Bow River near Calgary, Alberta, that forms the Bearspaw Reservoir and helps supply power and drinking water to the region.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Bearspaw Dam canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7321520 — 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: Bearspaw Dam Context triple: [Bow River, hasDam, Bearspaw Dam]
-
A.
Pine Portage Dam
Pine Portage Dam is a hydroelectric generating station on Ontario’s Nipigon River that forms part of the region’s power supply infrastructure.
-
B.
Chatfield Dam
Chatfield Dam is a large flood-control and water-storage structure in Colorado that creates Chatfield Reservoir on the South Platte River near Denver.
-
C.
Dworshak Dam
Dworshak Dam is a large concrete gravity dam on the North Fork Clearwater River in Idaho, primarily used for hydroelectric power generation, flood control, and recreation.
-
D.
Wanapum Dam
Wanapum Dam is a hydroelectric dam on the Columbia River in Washington State that generates power, supports irrigation, and helps regulate river flow.
-
E.
O'Shaughnessy Dam
O'Shaughnessy Dam is a concrete arch-gravity dam in Yosemite National Park that creates the Hetch Hetchy Reservoir, supplying water and hydroelectric power to the San Francisco Bay Area.
- 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: Bearspaw Dam Target entity description: Bearspaw Dam is a hydroelectric and water-control structure on the Bow River near Calgary, Alberta, that forms the Bearspaw Reservoir and helps supply power and drinking water to the region.
-
A.
Pine Portage Dam
Pine Portage Dam is a hydroelectric generating station on Ontario’s Nipigon River that forms part of the region’s power supply infrastructure.
-
B.
Chatfield Dam
Chatfield Dam is a large flood-control and water-storage structure in Colorado that creates Chatfield Reservoir on the South Platte River near Denver.
-
C.
Dworshak Dam
Dworshak Dam is a large concrete gravity dam on the North Fork Clearwater River in Idaho, primarily used for hydroelectric power generation, flood control, and recreation.
-
D.
Wanapum Dam
Wanapum Dam is a hydroelectric dam on the Columbia River in Washington State that generates power, supports irrigation, and helps regulate river flow.
-
E.
O'Shaughnessy Dam
O'Shaughnessy Dam is a concrete arch-gravity dam in Yosemite National Park that creates the Hetch Hetchy Reservoir, supplying water and hydroelectric power to the San Francisco Bay Area.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
gravity dam
ⓘ
hydroelectric dam ⓘ water-control structure ⓘ |
| basinCountry | Canada ⓘ |
| commissioned | 1954 ⓘ |
| constructionBegan | 1950 ⓘ |
| country | Canada ⓘ |
| creates | Bearspaw Reservoir NERFINISHED ⓘ |
| elevationOfReservoir | approximately 1,160 m ⓘ |
| energySource | hydropower ⓘ |
| formsReservoir | Bearspaw Reservoir NERFINISHED ⓘ |
| hasFunction |
regulating Bow River flows through Calgary
ⓘ
stabilizing water levels for intake structures ⓘ |
| hasPowerPlant | Bearspaw Generating Station NERFINISHED ⓘ |
| hasSpillway | yes ⓘ |
| installedCapacity | 16 MW ⓘ |
| isDownstreamOf | Ghost Dam NERFINISHED ⓘ |
| isUpstreamOf | Calgary downtown reach of Bow River NERFINISHED ⓘ |
| locatedIn |
Alberta
ⓘ
Calgary NERFINISHED ⓘ Canada ⓘ |
| locatedInWatershed | Bow River watershed NERFINISHED ⓘ |
| locatedOnRiver | Bow River NERFINISHED ⓘ |
| managesOutflowTo | downstream Bow River ⓘ |
| near |
Bearspaw, Alberta
NERFINISHED
ⓘ
Calgary, Alberta NERFINISHED ⓘ |
| nearCity | Calgary NERFINISHED ⓘ |
| numberOfTurbines | 3 ⓘ |
| opened | 1954 ⓘ |
| operator | TransAlta NERFINISHED ⓘ |
| ownedBy | TransAlta NERFINISHED ⓘ |
| partOf | Bow River hydroelectric system NERFINISHED ⓘ |
| purpose |
flood control
ⓘ
flow regulation ⓘ hydroelectric power generation ⓘ water supply ⓘ |
| regionServed |
Calgary
NERFINISHED
ⓘ
Rocky View County NERFINISHED ⓘ |
| riverSystem | South Saskatchewan River basin NERFINISHED ⓘ |
| status | operational ⓘ |
| supportsUse |
angling
ⓘ
boating ⓘ municipal water supply ⓘ recreation on Bearspaw Reservoir ⓘ |
| turbineType | Kaplan turbine ⓘ |
| usedFor |
base-load power generation
ⓘ
peaking power support ⓘ |
| waterSourceFor | Calgary drinking water system NERFINISHED ⓘ |
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: Bearspaw Dam Description of subject: Bearspaw Dam is a hydroelectric and water-control structure on the Bow River near Calgary, Alberta, that forms the Bearspaw Reservoir and helps supply power and drinking water to the region.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.