Horse Mesa Dam
E370754
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.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Horse Mesa Dam canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T3338636 — 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: Horse Mesa Dam Context triple: [Salt River, hasDam, Horse Mesa Dam]
-
A.
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.
-
B.
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.
-
C.
Pine Flat Dam
Pine Flat Dam is a large concrete gravity dam in California that creates Pine Flat Lake and provides flood control, irrigation water storage, and hydroelectric power on the Kings River.
-
D.
Blue Mesa Dam
Blue Mesa Dam is a large earthfill dam on the Gunnison River in Colorado, forming Blue Mesa Reservoir as part of the Colorado River Storage Project.
-
E.
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.
- 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: Horse Mesa Dam Target entity description: 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.
-
A.
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.
-
B.
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.
-
C.
Pine Flat Dam
Pine Flat Dam is a large concrete gravity dam in California that creates Pine Flat Lake and provides flood control, irrigation water storage, and hydroelectric power on the Kings River.
-
D.
Blue Mesa Dam
Blue Mesa Dam is a large earthfill dam on the Gunnison River in Colorado, forming Blue Mesa Reservoir as part of the Colorado River Storage Project.
-
E.
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.
- F. None of above. chosen
Statements (35)
| Predicate | Object |
|---|---|
| instanceOf |
arch dam
ⓘ
concrete thin-arch dam ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| constructionMaterial | concrete ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| creates | Apache Lake ⓘ |
| downstreamFrom | Roosevelt Dam NERFINISHED ⓘ |
| energySource | hydropower ⓘ |
| formsReservoir | Apache Lake ⓘ |
| hasFunction |
flood-control dam
ⓘ
hydroelectric dam ⓘ storage dam ⓘ |
| hasSpillway | yes ⓘ |
| impounds | Salt River ⓘ |
| isPartOf |
Salt River Project
ⓘ
surface form:
Arizona water management system
|
| locatedIn |
Arizona
ⓘ
Maricopa County, Arizona ⓘ United States of America ⓘ
surface form:
United States
|
| locatedNear | Tonto National Forest NERFINISHED ⓘ |
| locatedOnWaterway | Salt River ⓘ |
| operatedBy | Salt River Project ⓘ |
| ownedBy | Salt River Project ⓘ |
| partOf |
Salt River Project
ⓘ
Salt River Project ⓘ
surface form:
Salt River chain of dams
|
| purpose |
flood control
ⓘ
hydroelectric power generation ⓘ water storage ⓘ |
| region | central Arizona ⓘ |
| reservoirName | Apache Lake ⓘ |
| river | Salt River ⓘ |
| structureType | thin-arch dam ⓘ |
| upstreamFrom | Mormon Flat Dam NERFINISHED ⓘ |
| usedFor |
irrigation water supply
ⓘ
municipal water supply ⓘ recreation on Apache Lake ⓘ |
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: Horse Mesa Dam Description of subject: 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.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.