Craig Goch Dam
E851053
Craig Goch Dam is a stone-built, curved gravity dam in mid-Wales, often called the “top dam” of the Elan Valley reservoirs and noted for its picturesque setting and architectural elegance.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Craig Goch Dam canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T10160229 — 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: Craig Goch Dam Context triple: [Elan Valley, hasPart, Craig Goch Dam]
-
A.
Aviemore Dam
Aviemore Dam is a major hydroelectric dam in New Zealand’s South Island, forming Lake Aviemore as part of the Waitaki River power scheme.
-
B.
Pitlochry Dam
Pitlochry Dam is a mid-20th-century hydroelectric dam on the River Tummel in Scotland, noted for its power station and popular salmon ladder attraction.
-
C.
Keenleyside Dam
Keenleyside Dam is a major hydroelectric and flood-control dam on the Columbia River in British Columbia, Canada, forming part of the region’s large transboundary water management system.
-
D.
Bleiloch Dam
Bleiloch Dam is a large hydroelectric and flood-control dam in Thuringia, Germany, forming the country’s biggest reservoir on the upper Saale River.
-
E.
Saville Dam
Saville Dam is a large masonry dam in Barkhamsted, Connecticut, that creates the Barkhamsted Reservoir, a major water supply source for the Hartford area.
- 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: Craig Goch Dam Target entity description: Craig Goch Dam is a stone-built, curved gravity dam in mid-Wales, often called the “top dam” of the Elan Valley reservoirs and noted for its picturesque setting and architectural elegance.
-
A.
Aviemore Dam
Aviemore Dam is a major hydroelectric dam in New Zealand’s South Island, forming Lake Aviemore as part of the Waitaki River power scheme.
-
B.
Pitlochry Dam
Pitlochry Dam is a mid-20th-century hydroelectric dam on the River Tummel in Scotland, noted for its power station and popular salmon ladder attraction.
-
C.
Keenleyside Dam
Keenleyside Dam is a major hydroelectric and flood-control dam on the Columbia River in British Columbia, Canada, forming part of the region’s large transboundary water management system.
-
D.
Bleiloch Dam
Bleiloch Dam is a large hydroelectric and flood-control dam in Thuringia, Germany, forming the country’s biggest reservoir on the upper Saale River.
-
E.
Saville Dam
Saville Dam is a large masonry dam in Barkhamsted, Connecticut, that creates the Barkhamsted Reservoir, a major water supply source for the Hartford area.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
curved dam
ⓘ
gravity dam ⓘ reservoir dam ⓘ |
| alsoKnownAs | Top Dam NERFINISHED ⓘ |
| architecturalStyle | Victorian ⓘ |
| basinCountry | United Kingdom ⓘ |
| completionDate | 1904 ⓘ |
| constructionStartDate | 1897 ⓘ |
| country | United Kingdom ⓘ |
| designedBy |
Alexander Binnie
NERFINISHED
ⓘ
James Mansergh NERFINISHED ⓘ |
| engineeringSignificance | major component of Elan Valley waterworks scheme ⓘ |
| hasFeature |
curved masonry crest
ⓘ
ornamental parapets ⓘ stone towers ⓘ |
| hasRoadway | road across crest ⓘ |
| hasSpillway | yes ⓘ |
| height | approximately 36 metres ⓘ |
| heritageStatus | Grade II* listed structure ⓘ |
| isTouristAttraction | true ⓘ |
| length | approximately 156 metres ⓘ |
| locatedIn |
Elan Valley
NERFINISHED
ⓘ
Powys NERFINISHED ⓘ Wales ⓘ mid-Wales ⓘ |
| locatedUpstreamOf |
Caban-coch Dam
NERFINISHED
ⓘ
Garreg-ddu Dam NERFINISHED ⓘ Pen-y-garreg Dam NERFINISHED ⓘ |
| materialUsed | stone ⓘ |
| near |
Elan Village
NERFINISHED
ⓘ
Rhayader NERFINISHED ⓘ |
| notedFor |
architectural elegance
ⓘ
picturesque setting ⓘ |
| openingDate | 1904 ⓘ |
| operator | Dŵr Cymru Welsh Water NERFINISHED ⓘ |
| owner | Dŵr Cymru Welsh Water NERFINISHED ⓘ |
| partOf |
Birmingham water supply system
NERFINISHED
ⓘ
Elan Valley Reservoirs NERFINISHED ⓘ |
| purpose |
regulation of river flow
ⓘ
water supply ⓘ |
| regionServed | Birmingham NERFINISHED ⓘ |
| reservoirCapacity | approximately 9,200 megalitres ⓘ |
| reservoirName | Craig Goch Reservoir NERFINISHED ⓘ |
| riverCrossed | River Elan NERFINISHED ⓘ |
| spillwayType | 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: Craig Goch Dam Description of subject: Craig Goch Dam is a stone-built, curved gravity dam in mid-Wales, often called the “top dam” of the Elan Valley reservoirs and noted for its picturesque setting and architectural elegance.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.