Hiwassee Dam
E577173
Hiwassee Dam is a large hydroelectric dam in western North Carolina operated by the Tennessee Valley Authority, forming Hiwassee Lake and providing power, flood control, and recreation.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Hiwassee Dam canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6025766 — 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: Hiwassee Dam Context triple: [Hiwassee River, hasDam, Hiwassee Dam]
-
A.
Hartwell Dam
Hartwell Dam is a large hydroelectric and flood-control dam on the Savannah River that creates Lake Hartwell along the Georgia–South Carolina border.
-
B.
Chickamauga Dam
Chickamauga Dam is a Tennessee Valley Authority hydroelectric dam and navigation lock structure near Chattanooga, Tennessee, that helps generate power, control flooding, and improve river transportation on the Tennessee River.
-
C.
Apalachia Dam
Apalachia Dam is a hydroelectric dam in western North Carolina that impounds the Hiwassee River to generate power and help manage regional water resources.
-
D.
Buford Dam
Buford Dam is a large hydroelectric and flood-control dam in Georgia that creates Lake Lanier and helps regulate water flow and supply for the Atlanta metropolitan area.
-
E.
High Rock Dam
High Rock Dam is a hydroelectric dam in North Carolina that impounds the Yadkin River to form High Rock Lake, a major reservoir for power generation 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: Hiwassee Dam Target entity description: Hiwassee Dam is a large hydroelectric dam in western North Carolina operated by the Tennessee Valley Authority, forming Hiwassee Lake and providing power, flood control, and recreation.
-
A.
Hartwell Dam
Hartwell Dam is a large hydroelectric and flood-control dam on the Savannah River that creates Lake Hartwell along the Georgia–South Carolina border.
-
B.
Chickamauga Dam
Chickamauga Dam is a Tennessee Valley Authority hydroelectric dam and navigation lock structure near Chattanooga, Tennessee, that helps generate power, control flooding, and improve river transportation on the Tennessee River.
-
C.
Apalachia Dam
Apalachia Dam is a hydroelectric dam in western North Carolina that impounds the Hiwassee River to generate power and help manage regional water resources.
-
D.
Buford Dam
Buford Dam is a large hydroelectric and flood-control dam in Georgia that creates Lake Lanier and helps regulate water flow and supply for the Atlanta metropolitan area.
-
E.
High Rock Dam
High Rock Dam is a hydroelectric dam in North Carolina that impounds the Yadkin River to form High Rock Lake, a major reservoir for power generation and recreation.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf | hydroelectric dam ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| constructionStartDate | 1936 ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| createsReservoir | Hiwassee Lake NERFINISHED ⓘ |
| damType | concrete arch dam ⓘ |
| energySource | hydropower ⓘ |
| hasFunction |
navigation support downstream
ⓘ
peak power supply ⓘ water level regulation ⓘ |
| hasReservoirUse |
flood storage
ⓘ
hydropower storage ⓘ recreational use ⓘ |
| height | about 307 feet ⓘ |
| installedCapacity | about 185 megawatts ⓘ |
| isPartOfProgram | New Deal-era TVA projects ⓘ |
| length | about 1,376 feet ⓘ |
| locatedIn |
Cherokee County, North Carolina
NERFINISHED
ⓘ
North Carolina ⓘ |
| locatedInProtectedArea | Nantahala National Forest vicinity NERFINISHED ⓘ |
| locatedInRegion | western North Carolina NERFINISHED ⓘ |
| locatedInWatershed | Tennessee River watershed ⓘ |
| locatedNear | Murphy, North Carolina NERFINISHED ⓘ |
| managedBy | Tennessee Valley Authority NERFINISHED ⓘ |
| nearBorderOf |
Georgia
NERFINISHED
ⓘ
Tennessee NERFINISHED ⓘ |
| numberOfTurbines | 3 ⓘ |
| openingDate | 1940 ⓘ |
| operator | Tennessee Valley Authority NERFINISHED ⓘ |
| ownedBy | Tennessee Valley Authority NERFINISHED ⓘ |
| partOf | Tennessee Valley Authority power system NERFINISHED ⓘ |
| purpose |
flood control
ⓘ
hydroelectric power generation ⓘ recreation ⓘ |
| recreationActivity |
boating
ⓘ
camping ⓘ fishing ⓘ swimming ⓘ |
| regionServed | Tennessee Valley region NERFINISHED ⓘ |
| reservoirName | Hiwassee Lake NERFINISHED ⓘ |
| reservoirShorelineLength | about 180 miles ⓘ |
| reservoirSurfaceArea | about 6,000 acres ⓘ |
| riverCrossed | Hiwassee River NERFINISHED ⓘ |
| spillwayType | gated spillway ⓘ |
| status | operational ⓘ |
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: Hiwassee Dam Description of subject: Hiwassee Dam is a large hydroelectric dam in western North Carolina operated by the Tennessee Valley Authority, forming Hiwassee Lake and providing power, flood control, and recreation.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.