Echo Dam
E772831
Echo Dam is a concrete arch dam in northern Utah that creates Echo Reservoir for irrigation water storage, flood control, and recreation.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Echo Dam canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T8849559 — 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: Echo Dam Context triple: [Weber River, hasDam, Echo Dam]
-
A.
Red Rock Dam
Red Rock Dam is a large flood-control and hydroelectric dam on the Des Moines River in central Iowa, forming Lake Red Rock as the state’s largest reservoir.
-
B.
Horse Mesa Dam
Horse Mesa Dam is a concrete thin-arch dam on Arizona’s Salt River that forms Apache Lake and helps provide hydroelectric power, water storage, and flood control in the region.
-
C.
Piute Dam
Piute Dam is an irrigation and water storage structure on the Sevier River in south-central Utah, forming Piute Reservoir to support agriculture in the surrounding region.
-
D.
La Mesa Dam
La Mesa Dam is a major water reservoir in Quezon City, Philippines, that supplies a significant portion of Metro Manila’s drinking water.
-
E.
Jordanelle Dam
Jordanelle Dam is a large earthfill dam in northern Utah that creates Jordanelle Reservoir, providing water storage, flood control, and recreation for the surrounding 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: Echo Dam Target entity description: Echo Dam is a concrete arch dam in northern Utah that creates Echo Reservoir for irrigation water storage, flood control, and recreation.
-
A.
Red Rock Dam
Red Rock Dam is a large flood-control and hydroelectric dam on the Des Moines River in central Iowa, forming Lake Red Rock as the state’s largest reservoir.
-
B.
Horse Mesa Dam
Horse Mesa Dam is a concrete thin-arch dam on Arizona’s Salt River that forms Apache Lake and helps provide hydroelectric power, water storage, and flood control in the region.
-
C.
Piute Dam
Piute Dam is an irrigation and water storage structure on the Sevier River in south-central Utah, forming Piute Reservoir to support agriculture in the surrounding region.
-
D.
La Mesa Dam
La Mesa Dam is a major water reservoir in Quezon City, Philippines, that supplies a significant portion of Metro Manila’s drinking water.
-
E.
Jordanelle Dam
Jordanelle Dam is a large earthfill dam in northern Utah that creates Jordanelle Reservoir, providing water storage, flood control, and recreation for the surrounding region.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
concrete arch dam
ⓘ
dam ⓘ |
| constructionMaterial | concrete ⓘ |
| continent | North America ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| createsReservoir | Echo Reservoir ⓘ |
| damType | arch dam ⓘ |
| hasReservoir | Echo Reservoir ⓘ |
| impounds | Weber River ⓘ |
| locatedIn |
Utah
ⓘ
northern Utah ⓘ
linked to:
Northern Utah
|
| locatedInCounty | Summit County, Utah ⓘ |
| locatedNear | Echo, Utah ⓘ |
| locatedOnRiver | Weber River ⓘ |
| managingAgency |
United States Bureau of Reclamation
ⓘ
linked to:
Bureau of Reclamation
|
| partOfProject | Weber Basin Project ⓘ |
| primaryPurpose |
flood control
ⓘ
irrigation water storage ⓘ recreation ⓘ |
| usedFor |
agricultural irrigation
ⓘ
boating ⓘ fishing ⓘ flood mitigation ⓘ outdoor recreation ⓘ |
| waterBodyFormed | Echo 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: Echo Dam Description of subject: Echo Dam is a concrete arch dam in northern Utah that creates Echo Reservoir for irrigation water storage, flood control, and recreation.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.