Idamalayar Dam
E941395
Idamalayar Dam is a major multipurpose concrete gravity dam in Kerala, India, built across the Idamalayar River (a tributary of the Periyar) for hydroelectric power generation, irrigation, and flood control.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Edamalayar Dam | 1 |
| Idamalayar Dam canonical | 1 |
| Idamalayar Reservoir | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11604282 — 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: Idamalayar Dam Context triple: [Periyar River, hasDam, Idamalayar Dam]
-
A.
Orathuppalayam Dam
Orathuppalayam Dam is a reservoir and irrigation structure built across the Noyyal River in Tamil Nadu, India, primarily used for water storage and agricultural purposes.
-
B.
Mattupetty Dam
Mattupetty Dam is a scenic concrete storage dam and popular lakeside tourist spot near Munnar in Kerala, India, known for its tranquil reservoir, boating, and surrounding hill views.
-
C.
Gajanur Dam
Gajanur Dam is a scenic reservoir and popular tourist spot in Karnataka, India, known for its lush surroundings and role in irrigation and water management near Shivamogga.
-
D.
Idukki Arch Dam
The Idukki Arch Dam is a massive double-curvature concrete arch dam in Kerala, India, renowned for its hydroelectric power generation and dramatic setting between steep granite hills.
-
E.
Kulamavu Dam
Kulamavu Dam is a masonry gravity dam in Kerala, India, forming part of the Idukki Hydroelectric Project and helping create one of Asia’s largest arch dam reservoirs.
- 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: Idamalayar Dam Target entity description: Idamalayar Dam is a major multipurpose concrete gravity dam in Kerala, India, built across the Idamalayar River (a tributary of the Periyar) for hydroelectric power generation, irrigation, and flood control.
-
A.
Orathuppalayam Dam
Orathuppalayam Dam is a reservoir and irrigation structure built across the Noyyal River in Tamil Nadu, India, primarily used for water storage and agricultural purposes.
-
B.
Mattupetty Dam
Mattupetty Dam is a scenic concrete storage dam and popular lakeside tourist spot near Munnar in Kerala, India, known for its tranquil reservoir, boating, and surrounding hill views.
-
C.
Gajanur Dam
Gajanur Dam is a scenic reservoir and popular tourist spot in Karnataka, India, known for its lush surroundings and role in irrigation and water management near Shivamogga.
-
D.
Idukki Arch Dam
The Idukki Arch Dam is a massive double-curvature concrete arch dam in Kerala, India, renowned for its hydroelectric power generation and dramatic setting between steep granite hills.
-
E.
Kulamavu Dam
Kulamavu Dam is a masonry gravity dam in Kerala, India, forming part of the Idukki Hydroelectric Project and helping create one of Asia’s largest arch dam reservoirs.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
concrete gravity dam
ⓘ
hydroelectric dam ⓘ |
| basinCountry | India ⓘ |
| category |
Concrete dams
ⓘ
Dams in Kerala ⓘ Gravity dams ⓘ Hydroelectric power stations in Kerala ⓘ |
| constructionMaterial | concrete ⓘ |
| continent | Asia ⓘ |
| country | India ⓘ |
| damType | gravity dam ⓘ |
| designedFor | multipurpose water resource development ⓘ |
| hasFunction |
electricity generation
ⓘ
regulation of river flow ⓘ storage of water ⓘ supporting irrigation schemes ⓘ |
| hasHydroelectricPlant | Idamalayar Hydroelectric Project NERFINISHED ⓘ |
| hasImpactOn |
downstream flow of Periyar River
ⓘ
flood risk in downstream areas ⓘ |
| hasReservoir | Idamalayar Reservoir NERFINISHED ⓘ |
| hasRoleIn |
flood management in Periyar basin
ⓘ
water management in central Kerala ⓘ |
| infrastructureType | large dam ⓘ |
| isOn | tributary of Periyar River ⓘ |
| locatedIn |
Ernakulam district
NERFINISHED
ⓘ
Idamalayar River basin NERFINISHED ⓘ Idamalayar valley NERFINISHED ⓘ India’s state of Kerala NERFINISHED ⓘ Kerala NERFINISHED ⓘ southern India ⓘ |
| locatedNear |
Idamalayar
NERFINISHED
ⓘ
Periyar River NERFINISHED ⓘ |
| operator | Kerala State Electricity Board NERFINISHED ⓘ |
| ownedBy | Government of Kerala NERFINISHED ⓘ |
| partOf | Periyar river basin NERFINISHED ⓘ |
| purpose |
flood control
ⓘ
hydroelectric power generation ⓘ irrigation ⓘ |
| region | Western Ghats NERFINISHED ⓘ |
| reservoirUse |
irrigation water supply
ⓘ
power generation ⓘ |
| river | Idamalayar River NERFINISHED ⓘ |
| supports | regional power grid of Kerala ⓘ |
| tributaryOf | Periyar River NERFINISHED ⓘ |
| usedBy |
Kerala State Electricity Board for power generation
ⓘ
local agriculture for irrigation ⓘ |
| usedFor |
monsoon flood moderation
ⓘ
peak load power generation ⓘ |
| watercourseDammed | Idamalayar River NERFINISHED ⓘ |
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: Idamalayar Dam Description of subject: Idamalayar Dam is a major multipurpose concrete gravity dam in Kerala, India, built across the Idamalayar River (a tributary of the Periyar) for hydroelectric power generation, irrigation, and flood control.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Edamalayar Dam
this entity surface form:
Idamalayar Reservoir