Hales Bar Dam
E449741
Hales Bar Dam was an early 20th-century hydroelectric dam on the Tennessee River in Tennessee, notable as one of the first major dams built on a navigable river in the United States.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Hales Bar Dam canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4491078 — 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: Hales Bar Dam Context triple: [Nickajack Dam, replacedStructure, Hales Bar Dam]
-
A.
Nimbus Dam
Nimbus Dam is a concrete gravity dam on the American River in California that forms Lake Natoma and helps regulate water flow, provide hydroelectric power, and support regional water supply and recreation.
-
B.
Repulse Dam
Repulse Dam is a hydroelectric and water storage dam located on the Derwent River in Tasmania, Australia.
-
C.
Melton Hill Dam
Melton Hill Dam is a Tennessee Valley Authority hydroelectric dam on the Clinch River in East Tennessee, forming Melton Hill Lake and providing power generation, recreation, and flood control for the Knoxville area.
-
D.
Norris Dam
Norris Dam is a Tennessee Valley Authority hydroelectric dam on the Clinch River in eastern Tennessee, notable as TVA’s first major dam project and a key component of regional flood control and power generation.
-
E.
Denison Dam
Denison Dam is a large earthen dam on the Red River between Texas and Oklahoma, built for flood control, hydroelectric power generation, and water supply.
- 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: Hales Bar Dam Target entity description: Hales Bar Dam was an early 20th-century hydroelectric dam on the Tennessee River in Tennessee, notable as one of the first major dams built on a navigable river in the United States.
-
A.
Nimbus Dam
Nimbus Dam is a concrete gravity dam on the American River in California that forms Lake Natoma and helps regulate water flow, provide hydroelectric power, and support regional water supply and recreation.
-
B.
Repulse Dam
Repulse Dam is a hydroelectric and water storage dam located on the Derwent River in Tasmania, Australia.
-
C.
Melton Hill Dam
Melton Hill Dam is a Tennessee Valley Authority hydroelectric dam on the Clinch River in East Tennessee, forming Melton Hill Lake and providing power generation, recreation, and flood control for the Knoxville area.
-
D.
Norris Dam
Norris Dam is a Tennessee Valley Authority hydroelectric dam on the Clinch River in eastern Tennessee, notable as TVA’s first major dam project and a key component of regional flood control and power generation.
-
E.
Denison Dam
Denison Dam is a large earthen dam on the Red River between Texas and Oklahoma, built for flood control, hydroelectric power generation, and water supply.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
former dam
ⓘ
gravity dam ⓘ hydroelectric dam ⓘ |
| acquisitionDate | 1939 ⓘ |
| constructionEndDate | 1913 ⓘ |
| constructionStartDate | 1905 ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| createdNavigationPoolFor | Tennessee River NERFINISHED ⓘ |
| currentUseOfSite |
marina
ⓘ
recreational facility ⓘ |
| demolitionDate | 1971 ⓘ |
| elevationOfCrest | approximately 665 feet above sea level ⓘ |
| engineeringChallenge | construction on porous limestone foundation ⓘ |
| hadIssues |
chronic leakage
ⓘ
foundation problems ⓘ high maintenance costs ⓘ |
| hasLock | navigation lock ⓘ |
| hasRemainingStructure |
lock structure remnants
ⓘ
powerhouse ⓘ |
| historicalEra | early 20th century ⓘ |
| locatedIn | Tennessee ⓘ |
| locatedInCounty |
Hamilton County, Tennessee
NERFINISHED
ⓘ
Marion County, Tennessee NERFINISHED ⓘ |
| locatedNear |
Chattanooga, Tennessee
NERFINISHED
ⓘ
Haletown, Tennessee NERFINISHED ⓘ |
| locatedOnRiver | Tennessee River NERFINISHED ⓘ |
| locatedUpstreamOf | Nickajack Dam NERFINISHED ⓘ |
| navigationLockUse | allowing barge and boat passage on Tennessee River ⓘ |
| nearbyFeature | Tennessee River Gorge NERFINISHED ⓘ |
| nearbyTransportationRoute |
Interstate 24
NERFINISHED
ⓘ
U.S. Route 41 NERFINISHED ⓘ |
| notableFor |
being one of the first major dams on a navigable U.S. river
ⓘ
early large-scale hydroelectric development in the Tennessee Valley ⓘ |
| openingDate | 1913 ⓘ |
| operatedBy | Tennessee Valley Authority NERFINISHED ⓘ |
| originallyBuiltBy | Tennessee Electric Power Company NERFINISHED ⓘ |
| ownedBy | Tennessee Valley Authority NERFINISHED ⓘ |
| partOf |
Tennessee River navigation system
NERFINISHED
ⓘ
early Tennessee River development projects ⓘ |
| purpose |
flood control
ⓘ
hydroelectric power generation ⓘ navigation improvement ⓘ |
| region | Tennessee Valley NERFINISHED ⓘ |
| replacedBy | Nickajack Dam NERFINISHED ⓘ |
| reservoirLaterKnownAs | Nickajack Lake NERFINISHED ⓘ |
| reservoirName | Hales Bar Reservoir 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: Hales Bar Dam Description of subject: Hales Bar Dam was an early 20th-century hydroelectric dam on the Tennessee River in Tennessee, notable as one of the first major dams built on a navigable river in the United States.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.