Hartwell Dam
E386740
Hartwell Dam is a large hydroelectric and flood-control dam on the Savannah River that creates Lake Hartwell along the Georgia–South Carolina border.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Hartwell Dam canonical | 3 |
| Hartwell Dam Powerhouse | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3586752 — 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: Hartwell Dam Context triple: [Savannah River, hasDam, Hartwell Dam]
-
A.
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.
-
B.
Jackson Bluff Dam
Jackson Bluff Dam is a hydroelectric dam on the Ochlockonee River in Florida, best known for impounding the river to form Lake Talquin.
-
C.
Forestville Dam
Forestville Dam is a hydroelectric and recreational dam located on the Dead River near Marquette in Michigan’s Upper Peninsula.
-
D.
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.
-
E.
South Holston Dam
South Holston Dam is a large Tennessee Valley Authority hydroelectric and flood-control dam on the South Fork Holston River in northeastern Tennessee.
- 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: Hartwell Dam Target entity description: Hartwell Dam is a large hydroelectric and flood-control dam on the Savannah River that creates Lake Hartwell along the Georgia–South Carolina border.
-
A.
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.
-
B.
Jackson Bluff Dam
Jackson Bluff Dam is a hydroelectric dam on the Ochlockonee River in Florida, best known for impounding the river to form Lake Talquin.
-
C.
Forestville Dam
Forestville Dam is a hydroelectric and recreational dam located on the Dead River near Marquette in Michigan’s Upper Peninsula.
-
D.
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.
-
E.
South Holston Dam
South Holston Dam is a large Tennessee Valley Authority hydroelectric and flood-control dam on the South Fork Holston River in northeastern Tennessee.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
concrete gravity dam
ⓘ
flood control structure ⓘ hydroelectric dam ⓘ |
| associatedWithCounty |
Anderson County, South Carolina
NERFINISHED
ⓘ
Hart County, Georgia NERFINISHED ⓘ Oconee County, South Carolina NERFINISHED ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| borderBetween |
Georgia
ⓘ
South Carolina ⓘ |
| commissioned | 1962 ⓘ |
| constructionBegan | 1955 ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| createsReservoir | Lake Hartwell ⓘ |
| hasPowerPlant |
Hartwell Dam
self-linksurface differs
ⓘ
surface form:
Hartwell Dam Powerhouse
|
| hasSpillway | yes ⓘ |
| height |
about 204 feet
ⓘ
about 62 meters ⓘ |
| installedCapacity | about 344 megawatts ⓘ |
| length |
about 1,253 meters
ⓘ
about 4,111 feet ⓘ |
| locatedInCountry |
United States of America
ⓘ
surface form:
United States
|
| locatedInState |
Georgia
ⓘ
South Carolina ⓘ |
| locatedNearCity |
Anderson, South Carolina
ⓘ
Hartwell, Georgia ⓘ |
| locatedOnRiver | Savannah River ⓘ |
| namedAfter | Lake Hartwell ⓘ |
| nearHighway |
Interstate 85
NERFINISHED
ⓘ
U.S. Route 29 NERFINISHED ⓘ |
| numberOfTurbines | 7 ⓘ |
| openingDate | 1962 ⓘ |
| operatedByDistrict | Savannah District, U.S. Army Corps of Engineers ⓘ |
| operator | U.S. Army Corps of Engineers ⓘ |
| partOf | Savannah River hydropower system ⓘ |
| partOfProject | Savannah River Basin projects ⓘ |
| powerPlantType | hydroelectric ⓘ |
| primaryMaterial | concrete ⓘ |
| purpose |
fish and wildlife management
ⓘ
flood control ⓘ hydroelectric power generation ⓘ navigation support ⓘ recreation ⓘ water supply ⓘ |
| reservoirCapacity | about 2,550,000 acre-feet ⓘ |
| reservoirName | Lake Hartwell ⓘ |
| reservoirSurfaceArea | about 56,000 acres ⓘ |
| riverCrossed | Savannah River ⓘ |
| spillwayType | gated overflow ⓘ |
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: Hartwell Dam Description of subject: Hartwell Dam is a large hydroelectric and flood-control dam on the Savannah River that creates Lake Hartwell along the Georgia–South Carolina border.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Hartwell Dam Powerhouse