Gilboa Dam
E284339
Gilboa Dam is a large earthen embankment dam in Schoharie County, New York, that impounds the Schoharie Creek to form part of New York City's upstate water supply system.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Gilboa Dam canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T2639503 — 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: Gilboa Dam Context triple: [Schoharie Reservoir, hasDam, Gilboa Dam]
-
A.
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.
-
B.
Keban Dam
Keban Dam is a major hydroelectric and flood-control dam in eastern Turkey that forms one of the largest reservoirs on the Euphrates River.
-
C.
Betania Dam
Betania Dam is a major hydroelectric dam and reservoir in Colombia, known for generating power and supporting irrigation and aquaculture in the Huila region.
-
D.
Lahontan Dam
Lahontan Dam is a large early-20th-century concrete gravity dam in western Nevada that creates Lahontan Reservoir for irrigation, flood control, and recreation.
-
E.
Itezhi-Tezhi Dam
Itezhi-Tezhi Dam is a major hydroelectric and water-regulation dam in Zambia that helps control flows and generate power along the Kafue River system, a key tributary of the Zambezi.
- 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: Gilboa Dam Target entity description: Gilboa Dam is a large earthen embankment dam in Schoharie County, New York, that impounds the Schoharie Creek to form part of New York City's upstate water supply system.
-
A.
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.
-
B.
Keban Dam
Keban Dam is a major hydroelectric and flood-control dam in eastern Turkey that forms one of the largest reservoirs on the Euphrates River.
-
C.
Betania Dam
Betania Dam is a major hydroelectric dam and reservoir in Colombia, known for generating power and supporting irrigation and aquaculture in the Huila region.
-
D.
Lahontan Dam
Lahontan Dam is a large early-20th-century concrete gravity dam in western Nevada that creates Lahontan Reservoir for irrigation, flood control, and recreation.
-
E.
Itezhi-Tezhi Dam
Itezhi-Tezhi Dam is a major hydroelectric and water-regulation dam in Zambia that helps control flows and generate power along the Kafue River system, a key tributary of the Zambezi.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
earthen embankment dam
ⓘ
gravity dam ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| completed | 1927 ⓘ |
| constructionBegan | 1919 ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| createsReservoir | Schoharie Reservoir ⓘ |
| crosses | Schoharie Creek ⓘ |
| designedFor |
flow regulation
ⓘ
water storage ⓘ |
| hasFunction |
impounds water for New York City
ⓘ
regulates Schoharie Creek flows ⓘ |
| hasSpillway | concrete spillway ⓘ |
| hasType |
earthen dam
ⓘ
embankment dam ⓘ |
| height | about 182 feet ⓘ |
| impounds | Schoharie Creek ⓘ |
| length | about 1,326 feet ⓘ |
| locatedIn |
Catskill Mountains
ⓘ
surface form:
Catskill Mountains region
New York State ⓘ Northeastern United States ⓘ Schoharie County, New York NERFINISHED ⓘ Town of Gilboa ⓘ |
| locatedInWatershed |
Hudson River watershed
ⓘ
Schoharie Creek ⓘ
surface form:
Schoharie Creek watershed
|
| locatedOnWatercourse | Schoharie Creek ⓘ |
| material |
earthfill
ⓘ
rockfill ⓘ |
| namedAfter | Gilboa, New York ⓘ |
| nearCity |
Gilboa, New York
ⓘ
Prattsville ⓘ
surface form:
Prattsville, New York
|
| opened | 1927 ⓘ |
| operator | New York City Department of Environmental Protection ⓘ |
| ownedBy |
New York City
ⓘ
surface form:
City of New York
|
| owner | New York City Department of Environmental Protection ⓘ |
| partOf |
New York City Department of Environmental Protection water supply infrastructure
ⓘ
New York City water supply system ⓘ
surface form:
New York City upstate water supply system
New York City water supply system ⓘ |
| partOfSystem |
Catskill–Delaware water supply system
ⓘ
surface form:
New York City Catskill water system
New York City water tunnels ⓘ
surface form:
New York City water tunnel and reservoir network
|
| purpose |
flood control
ⓘ
municipal water supply ⓘ |
| region |
Upstate New York (broad sense)
ⓘ
surface form:
Upstate New York
|
| reservoirCapacity | about 17.6 billion US gallons ⓘ |
| reservoirName | Schoharie Reservoir ⓘ |
| waterConveyedBy | Shandaken Tunnel ⓘ |
| waterConveyedTo | Ashokan Reservoir ⓘ |
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: Gilboa Dam Description of subject: Gilboa Dam is a large earthen embankment dam in Schoharie County, New York, that impounds the Schoharie Creek to form part of New York City's upstate water supply system.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.