Cushman Dam No. 1
E760564
Cushman Dam No. 1 is a hydroelectric dam in Washington State that impounds the North Fork Skokomish River to generate power and create Lake Cushman.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Cushman Dam No. 1 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8298552 — 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: Cushman Dam No. 1 Context triple: [Lake Cushman, formedBy, Cushman Dam No. 1]
-
A.
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.
-
B.
Burn Mill Dam
Burn Mill Dam is a watercourse or controlled outflow channel associated with Kinghorn Loch in Fife, Scotland.
-
C.
Slab Creek Dam
Slab Creek Dam is a concrete gravity dam on the South Fork American River in El Dorado County, California, forming Slab Creek Reservoir as part of regional hydroelectric and water management operations.
-
D.
Cotter Dam
Cotter Dam is a major water supply and flood control dam near Canberra in the Australian Capital Territory, forming part of the region’s primary drinking water storage system.
-
E.
Riley Dam
Riley Dam is a hydroelectric dam located on the Androscoggin River in Maine, used for power generation and river flow management.
- 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: Cushman Dam No. 1 Target entity description: Cushman Dam No. 1 is a hydroelectric dam in Washington State that impounds the North Fork Skokomish River to generate power and create Lake Cushman.
-
A.
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.
-
B.
Burn Mill Dam
Burn Mill Dam is a watercourse or controlled outflow channel associated with Kinghorn Loch in Fife, Scotland.
-
C.
Slab Creek Dam
Slab Creek Dam is a concrete gravity dam on the South Fork American River in El Dorado County, California, forming Slab Creek Reservoir as part of regional hydroelectric and water management operations.
-
D.
Cotter Dam
Cotter Dam is a major water supply and flood control dam near Canberra in the Australian Capital Territory, forming part of the region’s primary drinking water storage system.
-
E.
Riley Dam
Riley Dam is a hydroelectric dam located on the Androscoggin River in Maine, used for power generation and river flow management.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
gravity dam
ⓘ
hydroelectric dam ⓘ |
| affects | Skokomish River watershed NERFINISHED ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| commissioned | 1926 ⓘ |
| connectedTo | Cushman Dam No. 2 NERFINISHED ⓘ |
| constructionBegan | 1924 ⓘ |
| constructionMaterial | concrete ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| createsReservoir | Lake Cushman NERFINISHED ⓘ |
| elevationOfCrest | about 740 feet above sea level ⓘ |
| energySource | hydropower ⓘ |
| gridConnection | regional transmission network in western Washington ⓘ |
| hasEnvironmentalImpact | fish migration disruption ⓘ |
| hasPowerhouse | Cushman No. 1 powerhouse NERFINISHED ⓘ |
| hasSpillway | yes ⓘ |
| height | about 275 feet ⓘ |
| impounds | North Fork Skokomish River NERFINISHED ⓘ |
| installedCapacity | about 43 megawatts ⓘ |
| length | about 1,111 feet ⓘ |
| locatedIn |
Mason County, Washington
NERFINISHED
ⓘ
Olympic Peninsula NERFINISHED ⓘ United States Pacific time zone ⓘ Washington ⓘ
surface form:
Washington State
|
| locatedNear |
Olympic National Forest
NERFINISHED
ⓘ
Skokomish Indian Reservation NERFINISHED ⓘ |
| locatedOnRiver | North Fork Skokomish River NERFINISHED ⓘ |
| namedAfter | Lake Cushman NERFINISHED ⓘ |
| nearCity |
Hoodsport, Washington
NERFINISHED
ⓘ
Potlatch, Washington NERFINISHED ⓘ |
| numberOfTurbines | 2 ⓘ |
| openingYear | 1926 ⓘ |
| operator | Tacoma Power NERFINISHED ⓘ |
| owner | Tacoma Power NERFINISHED ⓘ |
| partOf |
Cushman Hydroelectric Project
NERFINISHED
ⓘ
Tacoma Public Utilities power system ⓘ |
| primaryUse | electricity supply for Tacoma area ⓘ |
| purpose | hydroelectric power generation ⓘ |
| region | Pacific Northwest ⓘ |
| reservoir | Lake Cushman NERFINISHED ⓘ |
| reservoirElevation | about 738 feet above sea level ⓘ |
| reservoirUse |
flood control (limited)
ⓘ
recreation ⓘ |
| state | Washington ⓘ |
| status | operational ⓘ |
| subjectOf | Skokomish River restoration efforts ⓘ |
| turbineType | Francis turbine ⓘ |
| watercourse | North Fork Skokomish 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: Cushman Dam No. 1 Description of subject: Cushman Dam No. 1 is a hydroelectric dam in Washington State that impounds the North Fork Skokomish River to generate power and create Lake Cushman.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.