Alcova Dam
E910940
Alcova Dam is a concrete arch-gravity dam in central Wyoming that creates Alcova Reservoir on the North Platte River for irrigation, hydropower, and recreation.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Alcova Dam canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10547430 — 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: Alcova Dam Context triple: [North Platte River, hasDam, Alcova Dam]
-
A.
McClure Dam
McClure Dam is a hydroelectric dam on the Dead River in Michigan, forming McClure Basin and providing power and water management for the surrounding region.
-
B.
Howden Dam
Howden Dam is a large masonry dam in Derbyshire, England, forming part of the Upper Derwent Valley reservoir system and known for its impressive architecture and role in regional water supply.
-
C.
Waddell Dam
Waddell Dam is a major dam in Arizona that impounds the Agua Fria River to form Lake Pleasant, a key water storage and recreation reservoir for the Phoenix metropolitan area.
-
D.
Gillespie Dam
Gillespie Dam is an early 20th-century concrete gravity dam on Arizona’s Gila River, historically used for irrigation and now noted as a local landmark and wildlife habitat area.
-
E.
Parker Dam
Parker Dam is a concrete arch-gravity dam on the Colorado River best known for creating Lake Havasu and supplying water and hydroelectric power to parts of California and Arizona.
- 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: Alcova Dam Target entity description: Alcova Dam is a concrete arch-gravity dam in central Wyoming that creates Alcova Reservoir on the North Platte River for irrigation, hydropower, and recreation.
-
A.
McClure Dam
McClure Dam is a hydroelectric dam on the Dead River in Michigan, forming McClure Basin and providing power and water management for the surrounding region.
-
B.
Howden Dam
Howden Dam is a large masonry dam in Derbyshire, England, forming part of the Upper Derwent Valley reservoir system and known for its impressive architecture and role in regional water supply.
-
C.
Waddell Dam
Waddell Dam is a major dam in Arizona that impounds the Agua Fria River to form Lake Pleasant, a key water storage and recreation reservoir for the Phoenix metropolitan area.
-
D.
Gillespie Dam
Gillespie Dam is an early 20th-century concrete gravity dam on Arizona’s Gila River, historically used for irrigation and now noted as a local landmark and wildlife habitat area.
-
E.
Parker Dam
Parker Dam is a concrete arch-gravity dam on the Colorado River best known for creating Lake Havasu and supplying water and hydroelectric power to parts of California and Arizona.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
arch-gravity dam
ⓘ
concrete dam ⓘ |
| associatedInfrastructure |
Alcova Powerplant
NERFINISHED
ⓘ
irrigation canals ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| category |
Dams in Wyoming
ⓘ
Hydroelectric power plants in Wyoming ⓘ United States Bureau of Reclamation dams ⓘ |
| constructionMaterial | concrete ⓘ |
| constructionStartDate | 1935 ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| createsReservoir | Alcova Reservoir NERFINISHED ⓘ |
| damType | arch-gravity ⓘ |
| designedBy | United States Bureau of Reclamation engineers NERFINISHED ⓘ |
| elevationContext | located in a semi-arid region ⓘ |
| energyGenerationType | hydroelectric power ⓘ |
| federalProject | yes ⓘ |
| hasAccessRoad | yes ⓘ |
| hasPowerPlant | yes ⓘ |
| hasSpillway | yes ⓘ |
| locatedIn |
Natrona County, Wyoming
NERFINISHED
ⓘ
Wyoming ⓘ |
| locatedNear | Alcova, Wyoming NERFINISHED ⓘ |
| locatedOnRiver | North Platte River NERFINISHED ⓘ |
| managingAgency | United States Bureau of Reclamation NERFINISHED ⓘ |
| nearCity | Casper, Wyoming NERFINISHED ⓘ |
| openingDate | 1938 ⓘ |
| operator | United States Bureau of Reclamation NERFINISHED ⓘ |
| ownedBy | United States government ⓘ |
| partOf | Missouri River watershed NERFINISHED ⓘ |
| partOfProject | Kendrick Project NERFINISHED ⓘ |
| projectPurpose |
irrigation for agricultural lands in Wyoming
ⓘ
power supply in the region ⓘ |
| purpose |
hydropower
ⓘ
irrigation ⓘ recreation ⓘ |
| recreationActivities |
boating
ⓘ
camping ⓘ fishing ⓘ |
| region | central Wyoming ⓘ |
| reservoirFunction | flow regulation on the North Platte River ⓘ |
| reservoirName | Alcova Reservoir NERFINISHED ⓘ |
| reservoirUse |
hydropower generation
ⓘ
irrigation storage ⓘ recreation ⓘ |
| riverBasin | Platte River basin NERFINISHED ⓘ |
| spillwayType | overflow ⓘ |
| watercourse | North Platte River 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: Alcova Dam Description of subject: Alcova Dam is a concrete arch-gravity dam in central Wyoming that creates Alcova Reservoir on the North Platte River for irrigation, hydropower, and recreation.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.