Machhu Dam
E538708
Machhu Dam is a major irrigation and flood-control dam on the Machhu River near Morbi in Gujarat, India, historically known for the catastrophic failure of one of its structures in 1979.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Machhu Dam I | 2 |
| Machhu Dam II | 2 |
| Machhu Dam failure of 1979 | 2 |
| Machhu Dam canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5511430 — 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: Machhu Dam Context triple: [Morbi, hasNearbyWaterBody, Machhu Dam]
-
A.
Mula Dam
Mula Dam is a major irrigation and water-supply dam built on the Mula River in Maharashtra, India.
-
B.
Naghlu Dam
Naghlu Dam is a major hydroelectric and irrigation dam in Afghanistan, located east of Kabul and serving as a key source of power and water management for the region.
-
C.
Pandoh Dam
Pandoh Dam is an embankment dam in Himachal Pradesh, India, built for hydroelectric power generation and water diversion as part of the Beas Project.
-
D.
Tantangara Dam
Tantangara Dam is a major concrete gravity dam in New South Wales, Australia, built as part of the Snowy Mountains Scheme to store water for hydroelectric power generation and irrigation.
-
E.
Zhinvali Dam
Zhinvali Dam is a large hydroelectric dam and reservoir in eastern Georgia, known for its striking turquoise waters and role in supplying water and power to the region.
- 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: Machhu Dam Target entity description: Machhu Dam is a major irrigation and flood-control dam on the Machhu River near Morbi in Gujarat, India, historically known for the catastrophic failure of one of its structures in 1979.
-
A.
Mula Dam
Mula Dam is a major irrigation and water-supply dam built on the Mula River in Maharashtra, India.
-
B.
Naghlu Dam
Naghlu Dam is a major hydroelectric and irrigation dam in Afghanistan, located east of Kabul and serving as a key source of power and water management for the region.
-
C.
Pandoh Dam
Pandoh Dam is an embankment dam in Himachal Pradesh, India, built for hydroelectric power generation and water diversion as part of the Beas Project.
-
D.
Tantangara Dam
Tantangara Dam is a major concrete gravity dam in New South Wales, Australia, built as part of the Snowy Mountains Scheme to store water for hydroelectric power generation and irrigation.
-
E.
Zhinvali Dam
Zhinvali Dam is a large hydroelectric dam and reservoir in eastern Georgia, known for its striking turquoise waters and role in supplying water and power to the region.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
dam
ⓘ
gravity dam ⓘ |
| associatedCity | Morbi ⓘ |
| associatedDisaster | 1979 Morbi flood ⓘ |
| associatedStateCapital | Gandhinagar ⓘ |
| basinCountry | India ⓘ |
| casualtiesInNotableEvent | thousands of deaths in 1979 flood ⓘ |
| category |
Dams in Gujarat
ⓘ
Flood control infrastructure in India ⓘ Irrigation dams in India ⓘ |
| constructionStartDate | 1950s ⓘ |
| continent | Asia ⓘ |
| country | India ⓘ |
| countrySubdivision |
State of Gujarat
ⓘ
linked to:
Gujarat
|
| engineeringDiscipline | civil engineering ⓘ |
| hasFunction |
regulation of downstream flows
ⓘ
storage of monsoon runoff ⓘ |
| hasHistoricalSignificance | prompted reviews of dam safety in India after 1979 failure ⓘ |
| hasPart |
Machhu Dam I
ⓘ
linked to:
Machhu Dam
Machhu Dam II ⓘ
linked to:
Machhu Dam
|
| impactOfNotableEvent |
large-scale destruction of property in Morbi
ⓘ
severe flooding of Morbi ⓘ |
| knownFor |
Machhu Dam failure of 1979
ⓘ
linked to:
Machhu Dam
|
| locatedIn | Morbi ⓘ |
| locatedInCountry | India ⓘ |
| locatedInDistrict | Morbi district ⓘ |
| locatedInRegion |
Kathiawar Peninsula
ⓘ
western India ⓘ
linked to:
Western India
|
| locatedInState | Gujarat ⓘ |
| locatedInTimeZone | Indian Standard Time ⓘ |
| locatedNear |
Morbi city
ⓘ
linked to:
Morbi town
|
| locatedOnRiver | Machhu River ⓘ |
| material | concrete ⓘ |
| nearbyWaterBody |
Arabian Sea (downstream via rivers)
ⓘ
linked to:
Arabian Sea
|
| notableEvent | collapse of Machhu Dam II on 11 August 1979 ⓘ |
| openingDate | 1960 ⓘ |
| operator | Government of Gujarat ⓘ |
| owner | Government of Gujarat ⓘ |
| partOf | water resources infrastructure of Gujarat ⓘ |
| primaryUse | irrigation for agriculture ⓘ |
| purpose |
flood control
ⓘ
irrigation ⓘ |
| regionServed |
Morbi district
ⓘ
Saurashtra ⓘ
linked to:
Saurashtra State
|
| riskType | flood risk in case of failure ⓘ |
| riverBasin | Machhu River basin ⓘ |
| secondaryUse | flood moderation ⓘ |
| watercourse | Machhu River ⓘ |
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: Machhu Dam Description of subject: Machhu Dam is a major irrigation and flood-control dam on the Machhu River near Morbi in Gujarat, India, historically known for the catastrophic failure of one of its structures in 1979.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Machhu Dam
linked to: Machhu Dam
linked to: Machhu Dam
linked to: Machhu Dam
linked to: Machhu Dam
linked to: Machhu Dam