Kotmale Dam
E558980
Kotmale Dam is a major hydroelectric and irrigation dam in Sri Lanka, forming part of the Mahaweli Development Programme and creating the Kotmale Reservoir.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Kotmale Dam canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T5887608 — 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: Kotmale Dam Context triple: [Mahaweli River, hasDam, Kotmale Dam]
-
A.
Navilatirtha Dam
Navilatirtha Dam is a major irrigation and water management structure built across the Malaprabha River in Karnataka, India.
-
B.
Bhushi Dam
Bhushi Dam is a popular masonry dam and scenic picnic spot near Lonavala in Maharashtra, India, known for its cascading water steps and monsoon-time crowds.
-
C.
Khadakwasla Dam
Khadakwasla Dam is a major masonry dam near Pune, India, that creates the Khadakwasla Lake reservoir and serves as a key source of water for the city and surrounding region.
-
D.
Satpara Dam
Satpara Dam is a multipurpose concrete dam in Gilgit-Baltistan, Pakistan, built to generate hydroelectric power, provide irrigation, and supply drinking water using the waters of Satpara Lake.
-
E.
Bhima Dam
Bhima Dam is a major irrigation and water management structure built across the Bhima River in India.
- 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: Kotmale Dam Target entity description: Kotmale Dam is a major hydroelectric and irrigation dam in Sri Lanka, forming part of the Mahaweli Development Programme and creating the Kotmale Reservoir.
-
A.
Navilatirtha Dam
Navilatirtha Dam is a major irrigation and water management structure built across the Malaprabha River in Karnataka, India.
-
B.
Bhushi Dam
Bhushi Dam is a popular masonry dam and scenic picnic spot near Lonavala in Maharashtra, India, known for its cascading water steps and monsoon-time crowds.
-
C.
Khadakwasla Dam
Khadakwasla Dam is a major masonry dam near Pune, India, that creates the Khadakwasla Lake reservoir and serves as a key source of water for the city and surrounding region.
-
D.
Satpara Dam
Satpara Dam is a multipurpose concrete dam in Gilgit-Baltistan, Pakistan, built to generate hydroelectric power, provide irrigation, and supply drinking water using the waters of Satpara Lake.
-
E.
Bhima Dam
Bhima Dam is a major irrigation and water management structure built across the Bhima River in India.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
gravity dam
ⓘ
hydroelectric dam ⓘ irrigation dam ⓘ |
| annualGeneration | ~700 GWh ⓘ |
| associatedInfrastructure |
headrace tunnel
ⓘ
tailrace tunnel ⓘ underground power station ⓘ |
| basinCountry | Sri Lanka ⓘ |
| benefit |
expanded irrigated agriculture downstream
ⓘ
increased reliability of power supply in Sri Lanka ⓘ |
| constructionBegan | 1979 ⓘ |
| country | Sri Lanka ⓘ |
| createsReservoir | Kotmale Reservoir ⓘ |
| crosses | Kotmale Oya ⓘ |
| damType | concrete gravity dam ⓘ |
| designedFor | multi‑purpose water resources development ⓘ |
| energySource | hydropower ⓘ |
| engineeringDiscipline | civil engineering ⓘ |
| hasAlternativeName | Kotmale Hydropower Project ⓘ |
| height | 87 m ⓘ |
| impact |
inundation of agricultural land
ⓘ
resettlement of local communities ⓘ |
| installedCapacity | 201 MW ⓘ |
| length | 600 m ⓘ |
| locatedIn |
Central Province, Sri Lanka
ⓘ
linked to:
Central Province of Sri Lanka
Kotmale ⓘ |
| locatedInRiverBasin |
Mahaweli River basin
ⓘ
linked to:
Mahaweli River drainage basin
|
| locatedOnRiver | Kotmale Oya ⓘ |
| nearbyCity | Nuwara Eliya ⓘ |
| nearbyTown | Talawakele ⓘ |
| numberOfTurbines | 3 ⓘ |
| openingDate | 1985 ⓘ |
| operator | Ceylon Electricity Board ⓘ |
| ownedBy | Government of Sri Lanka ⓘ |
| partOf |
Mahaweli Development Programme
ⓘ
Mahaweli Ganga hydropower scheme ⓘ
linked to:
Mahaweli Ganga Hydropower Complex
|
| plantName |
Kotmale Power Station
ⓘ
linked to:
Kotmale Hydroelectric Power Station
|
| plantType | conventional hydroelectric power plant ⓘ |
| projectPhase |
Accelerated Mahaweli Programme
ⓘ
linked to:
Mahaweli Development Programme
|
| purpose |
flood control
ⓘ
hydroelectric power generation ⓘ irrigation ⓘ |
| region |
Hill Country of Sri Lanka
ⓘ
linked to:
Central Highlands of Sri Lanka
|
| reservoirName | Kotmale Reservoir ⓘ |
| reservoirSurfaceArea | 6.5 km² ⓘ |
| reservoirTotalCapacity | 174,000,000 m³ ⓘ |
| spillwayType | controlled overflow spillway ⓘ |
| submerges | parts of Kotmale valley ⓘ |
| turbineType | Francis turbine ⓘ |
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: Kotmale Dam Description of subject: Kotmale Dam is a major hydroelectric and irrigation dam in Sri Lanka, forming part of the Mahaweli Development Programme and creating the Kotmale Reservoir.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.