Oak Grove Dam
E354716
Oak Grove Dam is a hydroelectric dam located on Oregon’s Clackamas River, used primarily for power generation and water management.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Oak Grove Dam canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3114463 — 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: Oak Grove Dam Context triple: [Clackamas River, hasDam, Oak Grove Dam]
-
A.
Forestville Dam
Forestville Dam is a hydroelectric and recreational dam located on the Dead River near Marquette in Michigan’s Upper Peninsula.
-
B.
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.
-
C.
River Mill Dam
River Mill Dam is a hydroelectric dam on the Clackamas River in Oregon, known for power generation and its role in regional water management.
-
D.
Lewisville Dam
Lewisville Dam is an earthen embankment dam in North Texas that impounds the Elm Fork of the Trinity River to form Lewisville Lake for flood control, water supply, and recreation.
-
E.
Mount Morris Dam
Mount Morris Dam is a large concrete flood-control dam on the Genesee River in western New York, known for protecting downstream communities from flooding and serving as a prominent feature of Letchworth State Park.
- 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: Oak Grove Dam Target entity description: Oak Grove Dam is a hydroelectric dam located on Oregon’s Clackamas River, used primarily for power generation and water management.
-
A.
Forestville Dam
Forestville Dam is a hydroelectric and recreational dam located on the Dead River near Marquette in Michigan’s Upper Peninsula.
-
B.
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.
-
C.
River Mill Dam
River Mill Dam is a hydroelectric dam on the Clackamas River in Oregon, known for power generation and its role in regional water management.
-
D.
Lewisville Dam
Lewisville Dam is an earthen embankment dam in North Texas that impounds the Elm Fork of the Trinity River to form Lewisville Lake for flood control, water supply, and recreation.
-
E.
Mount Morris Dam
Mount Morris Dam is a large concrete flood-control dam on the Genesee River in western New York, known for protecting downstream communities from flooding and serving as a prominent feature of Letchworth State Park.
- F. None of above. chosen
Statements (31)
| Predicate | Object |
|---|---|
| instanceOf |
gravity dam
ⓘ
hydroelectric dam ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| connectedTo | Oak Grove Powerhouse ⓘ |
| constructionBegan | 1950 ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| hasReservoir | Timothy Lake NERFINISHED ⓘ |
| locatedIn |
Clackamas County, Oregon
ⓘ
Oregon ⓘ United States of America ⓘ
surface form:
United States
|
| locatedOn | Clackamas River ⓘ |
| manages | Clackamas River flows ⓘ |
| openingYear | 1956 ⓘ |
| operator | Portland General Electric ⓘ |
| ownedBy | Portland General Electric ⓘ |
| partOf |
Clackamas River Hydroelectric Project
ⓘ
surface form:
Clackamas River hydropower system
Oak Grove Hydroelectric Project ⓘ |
| plantType | hydroelectric power plant ⓘ |
| primaryUse | hydroelectric power generation ⓘ |
| purpose |
electricity generation
ⓘ
flow regulation ⓘ water supply support ⓘ |
| region | Pacific Northwest ⓘ |
| regulatesFor |
downstream hydropower projects
ⓘ
fish habitat management ⓘ recreation management at Timothy Lake ⓘ |
| reservoirName | Timothy Lake NERFINISHED ⓘ |
| riverSystem | Clackamas River ⓘ |
| state | Oregon ⓘ |
| status | operational ⓘ |
| use | water management ⓘ |
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: Oak Grove Dam Description of subject: Oak Grove Dam is a hydroelectric dam located on Oregon’s Clackamas River, used primarily for power generation and water management.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.