Sennar Dam
E197968
Sennar Dam is a major early-20th-century irrigation and hydroelectric dam on the Blue Nile in Sudan, crucial for agricultural development in the Gezira region.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Sennar Dam canonical | 7 |
| Sennar Dam irrigation system | 1 |
| Sennar Reservoir | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1740236 — 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: Sennar Dam Context triple: [Blue Nile, hasDam, Sennar Dam]
-
A.
Roseires Dam
Roseires Dam is a major hydroelectric and irrigation dam on the Blue Nile in Sudan, crucial for water storage, power generation, and flood control in the region.
-
B.
Jebba Dam
Jebba Dam is a major hydroelectric power facility in Nigeria that harnesses the flow of the Niger River to generate electricity and support regional water management.
-
C.
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.
-
D.
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.
-
E.
Tabqa Dam
Tabqa Dam is a major hydroelectric and irrigation dam on the Euphrates River in northern Syria, forming Lake Assad and playing a key role in the country’s water and power supply.
- 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: Sennar Dam Target entity description: Sennar Dam is a major early-20th-century irrigation and hydroelectric dam on the Blue Nile in Sudan, crucial for agricultural development in the Gezira region.
-
A.
Roseires Dam
Roseires Dam is a major hydroelectric and irrigation dam on the Blue Nile in Sudan, crucial for water storage, power generation, and flood control in the region.
-
B.
Jebba Dam
Jebba Dam is a major hydroelectric power facility in Nigeria that harnesses the flow of the Niger River to generate electricity and support regional water management.
-
C.
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.
-
D.
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.
-
E.
Tabqa Dam
Tabqa Dam is a major hydroelectric and irrigation dam on the Euphrates River in northern Syria, forming Lake Assad and playing a key role in the country’s water and power supply.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
gravity dam
ⓘ
hydroelectric dam ⓘ infrastructure project ⓘ irrigation dam ⓘ |
| builtBy |
Anglo-Egyptian Sudan administration
ⓘ
linked to:
Anglo-Egyptian Sudan
|
| constructionStartDate | 1919 ⓘ |
| continent | Africa ⓘ |
| country | Sudan ⓘ |
| designedBy | British engineers ⓘ |
| enablesIrrigationOf |
Gezira agricultural scheme
ⓘ
linked to:
Gezira Scheme
millions of feddans of farmland ⓘ |
| engineeringType | masonry and concrete gravity structure ⓘ |
| hasPowerPlant | yes ⓘ |
| hasSpillway | yes ⓘ |
| height | about 40 meters ⓘ |
| historicalPeriod |
Anglo-Egyptian Sudan era
ⓘ
linked to:
Anglo-Egyptian Sudan
|
| impact |
expansion of irrigated agriculture in central Sudan
ⓘ
regulation of Blue Nile seasonal flows ⓘ |
| installedCapacity | about 15 megawatts ⓘ |
| length | about 3,000 meters ⓘ |
| locatedInCountry | Sudan ⓘ |
| locatedInRegion | Gezira ⓘ |
| locatedNear |
Sennar
ⓘ
linked to:
Sennar State
|
| locatedOn | Blue Nile ⓘ |
| managedBy | Sudanese authorities ⓘ |
| material | concrete ⓘ |
| nearCity |
Sennar
ⓘ
linked to:
Sennar State
Wad Medani ⓘ |
| notableFor | being one of the earliest large dams on the Blue Nile ⓘ |
| openingDate | 1925 ⓘ |
| ownership | Government of Sudan ⓘ |
| partOf | Nile River basin infrastructure ⓘ |
| powerPlantType | hydroelectric power station ⓘ |
| primaryWaterUser | Gezira Scheme ⓘ |
| purpose |
flood control
ⓘ
hydroelectric power generation ⓘ irrigation ⓘ |
| relatedProject | Gezira Scheme ⓘ |
| relatedRiverSystem | Nile ⓘ |
| reservoirCapacity | about 0.9 cubic kilometres ⓘ |
| reservoirName |
Sennar Reservoir
ⓘ
linked to:
Sennar Dam
|
| riverCrossed | Blue Nile ⓘ |
| significance |
key infrastructure for Sudanese cotton production
ⓘ
major early-20th-century irrigation project on the Nile ⓘ |
| status | operational ⓘ |
| supportsActivity | agricultural development in Gezira region ⓘ |
| waterSource | seasonal Blue Nile flows ⓘ |
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: Sennar Dam Description of subject: Sennar Dam is a major early-20th-century irrigation and hydroelectric dam on the Blue Nile in Sudan, crucial for agricultural development in the Gezira region.
Referenced by (9)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Sennar Dam
linked to: Sennar Dam