Bagnell Dam
E597457
Bagnell Dam is a large hydroelectric dam on the Osage River in Missouri, best known for impounding the Lake of the Ozarks and serving as a major regional power and recreation infrastructure.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Bagnell Dam canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T6239144 — 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: Bagnell Dam Context triple: [Lake of the Ozarks, createdBy, Bagnell Dam]
-
A.
Harriman Dam
Harriman Dam is a hydroelectric dam in Vermont that impounds the Deerfield River to form Harriman Reservoir, one of the state’s largest lakes.
-
B.
Goodwin Dam
Goodwin Dam is a concrete gravity diversion dam on California’s Stanislaus River that helps regulate river flow and supplies irrigation water to surrounding agricultural areas.
-
C.
Oxbow Dam
Oxbow Dam is a hydroelectric dam on the Snake River in eastern Oregon, forming Oxbow Reservoir as part of the Hells Canyon Complex.
-
D.
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.
-
E.
Palisade Dam
Palisade Dam is an irrigation and water storage structure located on the Sevier River in central Utah, supporting local agriculture and recreation.
- 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: Bagnell Dam Target entity description: Bagnell Dam is a large hydroelectric dam on the Osage River in Missouri, best known for impounding the Lake of the Ozarks and serving as a major regional power and recreation infrastructure.
-
A.
Harriman Dam
Harriman Dam is a hydroelectric dam in Vermont that impounds the Deerfield River to form Harriman Reservoir, one of the state’s largest lakes.
-
B.
Goodwin Dam
Goodwin Dam is a concrete gravity diversion dam on California’s Stanislaus River that helps regulate river flow and supplies irrigation water to surrounding agricultural areas.
-
C.
Oxbow Dam
Oxbow Dam is a hydroelectric dam on the Snake River in eastern Oregon, forming Oxbow Reservoir as part of the Hells Canyon Complex.
-
D.
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.
-
E.
Palisade Dam
Palisade Dam is an irrigation and water storage structure located on the Sevier River in central Utah, supporting local agriculture and recreation.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
concrete dam
ⓘ
gravity dam ⓘ hydroelectric dam ⓘ |
| alsoKnownAs | Osage Power Plant Dam NERFINISHED ⓘ |
| builder | Union Electric Company NERFINISHED ⓘ |
| constructionBegan | 1929 ⓘ |
| constructionCompleted | 1931 ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| gridConnection | Midwestern United States power grid NERFINISHED ⓘ |
| hasPowerPlant | Osage Power Plant NERFINISHED ⓘ |
| hasRecreationArea | Bagnell Dam Strip commercial area ⓘ |
| hasReservoirShorelineLength | over 1,100 miles ⓘ |
| hasStructure |
concrete gravity section
ⓘ
earth embankment sections ⓘ |
| height | approximately 148 feet ⓘ |
| impounds | Lake of the Ozarks NERFINISHED ⓘ |
| installedCapacity | approximately 215 megawatts ⓘ |
| length | approximately 2,543 feet ⓘ |
| locatedIn |
Missouri
ⓘ
United States of America ⓘ
surface form:
United States
|
| locatedInCounty |
Camden County, Missouri
NERFINISHED
ⓘ
Miller County, Missouri NERFINISHED ⓘ |
| locatedNear |
Bagnell, Missouri
NERFINISHED
ⓘ
Lake Ozark, Missouri NERFINISHED ⓘ |
| locatedOnRiver | Osage River NERFINISHED ⓘ |
| namedAfter | Bagnell, Missouri NERFINISHED ⓘ |
| nearbyCity |
Eldon, Missouri
NERFINISHED
ⓘ
Osage Beach, Missouri NERFINISHED ⓘ |
| numberOfTurbines | 8 ⓘ |
| openingDate | 1931 ⓘ |
| operatedBy | Ameren Missouri NERFINISHED ⓘ |
| ownedBy | Ameren Missouri NERFINISHED ⓘ |
| partOf | Osage Project NERFINISHED ⓘ |
| purpose |
flood control
ⓘ
hydroelectric power generation ⓘ recreation ⓘ |
| regionServed |
Lake of the Ozarks region
NERFINISHED
ⓘ
central Missouri ⓘ |
| reservoir | Lake of the Ozarks NERFINISHED ⓘ |
| riverBasin | Osage River basin NERFINISHED ⓘ |
| spillwayType | gated spillway ⓘ |
| status | operational ⓘ |
| usedFor |
boating
ⓘ
fishing ⓘ regional electric power supply ⓘ tourism ⓘ water sports ⓘ |
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: Bagnell Dam Description of subject: Bagnell Dam is a large hydroelectric dam on the Osage River in Missouri, best known for impounding the Lake of the Ozarks and serving as a major regional power and recreation infrastructure.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.