Gariep Dam
E54853
Gariep Dam is South Africa’s largest storage reservoir, situated on the Orange River and serving as a key source of water, hydroelectric power, and recreation for the surrounding regions.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Gariep Dam canonical | 9 |
| Gariep Dam wall | 1 |
| Gariep Hydroelectric Power Station | 1 |
| Hendrik Verwoerd Dam | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T418316 — 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: Gariep Dam Context triple: [Free State, contains, Gariep Dam]
-
A.
Jurala Dam
Jurala Dam is a major irrigation and hydroelectric project built across the Krishna River in Telangana, India.
-
B.
Vaal Triangle
The Vaal Triangle is a major industrial and urban region in South Africa, centered around the Vaal River and known for its heavy manufacturing and petrochemical industries.
-
C.
Almatti Dam
Almatti Dam is a major hydroelectric and irrigation dam in Karnataka, India, built across the Krishna River as part of the Upper Krishna Project.
-
D.
Eder Dam
Eder Dam is a major German gravity dam in the Eder River valley, historically known for being one of the dams breached by the RAF’s “Dambusters” raid during World War II.
-
E.
Mapocho River
The Mapocho River is a major waterway flowing through the city of Santiago, Chile, historically central to its development and urban landscape.
- 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: Gariep Dam Target entity description: Gariep Dam is South Africa’s largest storage reservoir, situated on the Orange River and serving as a key source of water, hydroelectric power, and recreation for the surrounding regions.
-
A.
Jurala Dam
Jurala Dam is a major irrigation and hydroelectric project built across the Krishna River in Telangana, India.
-
B.
Vaal Triangle
The Vaal Triangle is a major industrial and urban region in South Africa, centered around the Vaal River and known for its heavy manufacturing and petrochemical industries.
-
C.
Almatti Dam
Almatti Dam is a major hydroelectric and irrigation dam in Karnataka, India, built across the Krishna River as part of the Upper Krishna Project.
-
D.
Eder Dam
Eder Dam is a major German gravity dam in the Eder River valley, historically known for being one of the dams breached by the RAF’s “Dambusters” raid during World War II.
-
E.
Mapocho River
The Mapocho River is a major waterway flowing through the city of Santiago, Chile, historically central to its development and urban landscape.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
arch dam
ⓘ
dam ⓘ gravity dam ⓘ reservoir ⓘ |
| constructionMaterial | concrete ⓘ |
| constructionStartDate | 1965 ⓘ |
| country | South Africa ⓘ |
| crosses | Orange River ⓘ |
| damHeight | approximately 88 metres ⓘ |
| damLength | approximately 914 metres ⓘ |
| design | concrete gravity-arch design ⓘ |
| formerlyKnownAs |
Gariep Dam
self-linksurface differs
ⓘ
surface form:
Hendrik Verwoerd Dam
|
| hasFeature | ship-like viewing tower ⓘ |
| hasPowerStation |
Gariep Dam
self-linksurface differs
ⓘ
surface form:
Gariep Hydroelectric Power Station
|
| hasRecreationArea | Gariep Dam Nature Reserve ⓘ |
| installedCapacity | approximately 360 MW ⓘ |
| isLargestReservoirIn | South Africa ⓘ |
| isUpstreamOf | Vanderkloof Dam ⓘ |
| locatedInProvince |
Eastern Cape
ⓘ
Free State ⓘ |
| locatedOnRiver | Orange River ⓘ |
| namedAfter | Gariep River ⓘ |
| nearestTown | Gariepdam ⓘ |
| numberOfTurbines | 4 ⓘ |
| openingDate | 1971 ⓘ |
| operator | Department of Water and Sanitation (South Africa) ⓘ |
| partOf | Orange River Project ⓘ |
| projectDeveloper |
Government of South Africa
ⓘ
surface form:
South African government
|
| purpose |
flood control
ⓘ
hydroelectric power generation ⓘ irrigation ⓘ recreation ⓘ water storage ⓘ |
| regionServed |
Eastern Cape
ⓘ
Free State ⓘ Northern Cape ⓘ |
| reservoirCapacity | approximately 5,340,000,000 cubic metres ⓘ |
| reservoirSurfaceArea | approximately 370 square kilometres ⓘ |
| spillwayType | controlled overflow ⓘ |
| status | operational ⓘ |
| turbineType | Francis turbine ⓘ |
| usedFor |
boating
ⓘ
domestic water supply ⓘ fishing ⓘ industrial water supply ⓘ tourism ⓘ water supply to irrigation schemes ⓘ |
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: Gariep Dam Description of subject: Gariep Dam is South Africa’s largest storage reservoir, situated on the Orange River and serving as a key source of water, hydroelectric power, and recreation for the surrounding regions.
Referenced by (12)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Hendrik Verwoerd Dam
this entity surface form:
Gariep Hydroelectric Power Station
this entity surface form:
Gariep Dam wall