New Don Pedro Dam
E126938
New Don Pedro Dam is a large earth-and-rockfill dam in California that creates Don Pedro Reservoir, a major water storage and hydroelectric facility serving irrigation, flood control, and recreation needs in the Tuolumne River basin.
All labels observed (2)
| Label | Occurrences |
|---|---|
| New Don Pedro Dam canonical | 6 |
| Old Don Pedro Dam | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T1109528 — 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: New Don Pedro Dam Context triple: [Tuolumne River, hasDam, New Don Pedro Dam]
-
A.
Nickajack Dam
Nickajack Dam is a hydroelectric and navigation dam on the Tennessee River in southeastern Tennessee, forming Nickajack Lake and helping control flooding and support regional power generation.
-
B.
Eder Dam
Eder Dam is a major German gravity dam in the Eder River valley, historically known for being one of the dams breached by the RAF’s “Dambusters” raid during World War II.
-
C.
Parker Dam
Parker Dam is a concrete arch-gravity dam on the Colorado River best known for creating Lake Havasu and supplying water and hydroelectric power to parts of California and Arizona.
-
D.
Hollywood Dam
Hollywood Dam is a concrete arch-gravity dam in the Hollywood Hills of Los Angeles that impounds the Hollywood Reservoir as part of the city’s water supply system.
-
E.
Wheeler Dam
Wheeler Dam is a hydroelectric dam on the Tennessee River in northern Alabama that forms Wheeler Lake and helps provide power, navigation, and flood control in 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: New Don Pedro Dam Target entity description: New Don Pedro Dam is a large earth-and-rockfill dam in California that creates Don Pedro Reservoir, a major water storage and hydroelectric facility serving irrigation, flood control, and recreation needs in the Tuolumne River basin.
-
A.
Nickajack Dam
Nickajack Dam is a hydroelectric and navigation dam on the Tennessee River in southeastern Tennessee, forming Nickajack Lake and helping control flooding and support regional power generation.
-
B.
Eder Dam
Eder Dam is a major German gravity dam in the Eder River valley, historically known for being one of the dams breached by the RAF’s “Dambusters” raid during World War II.
-
C.
Parker Dam
Parker Dam is a concrete arch-gravity dam on the Colorado River best known for creating Lake Havasu and supplying water and hydroelectric power to parts of California and Arizona.
-
D.
Hollywood Dam
Hollywood Dam is a concrete arch-gravity dam in the Hollywood Hills of Los Angeles that impounds the Hollywood Reservoir as part of the city’s water supply system.
-
E.
Wheeler Dam
Wheeler Dam is a hydroelectric dam on the Tennessee River in northern Alabama that forms Wheeler Lake and helps provide power, navigation, and flood control in the region.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
earth-and-rockfill dam
ⓘ
hydroelectric dam ⓘ |
| basin |
Tuolumne River basin
ⓘ
linked to:
Tuolumne River
|
| constructionMaterial |
earthfill
ⓘ
rockfill ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| createsReservoir | Don Pedro Reservoir ⓘ |
| designedFor | multi-purpose water management ⓘ |
| hasComponent |
hydroelectric powerplant
ⓘ
outlet works ⓘ spillway ⓘ |
| hasEnergyFunction | hydroelectric generation for irrigation districts ⓘ |
| hasPurpose |
provide flood protection downstream on the Tuolumne River
ⓘ
serve agricultural users in the San Joaquin Valley ⓘ support recreation at Don Pedro Reservoir ⓘ |
| hasReservoirUse |
camping
ⓘ
flood management ⓘ hydropower generation ⓘ irrigation water storage ⓘ municipal water supply ⓘ recreational boating ⓘ sport fishing ⓘ |
| impounds | Tuolumne River ⓘ |
| isInfrastructureType | large dam ⓘ |
| isLocatedInHydrologicRegion |
San Joaquin River hydrologic region
ⓘ
linked to:
San Joaquin River Basin
|
| isPartOf | California State water infrastructure ⓘ |
| isSuccessorOf |
Old Don Pedro Dam
ⓘ
linked to:
Don Pedro Dam
|
| locatedIn |
California
ⓘ
linked to:
California, United States
|
| locatedInCounty |
Tuolumne County, California
ⓘ
linked to:
Tuolumne County
|
| locatedNear | La Grange, California ⓘ |
| locatedOnRiver | Tuolumne River ⓘ |
| managesResource | surface water in the Tuolumne River basin ⓘ |
| namedAfter |
Don Pedro Bar (historic mining area)
ⓘ
Don Pedro Reservoir ⓘ |
| ownedBy |
Modesto Irrigation District
ⓘ
Turlock Irrigation District ⓘ |
| partOf | Tuolumne River water management system ⓘ |
| primaryFunction |
flood control
ⓘ
hydroelectric power generation ⓘ irrigation supply ⓘ recreation support ⓘ water storage ⓘ |
| region | Central California ⓘ |
| state |
California
ⓘ
linked to:
California, United States
|
| supportsActivity |
camping around Don Pedro Reservoir
ⓘ
fishing on Don Pedro Reservoir ⓘ recreational boating on Don Pedro Reservoir ⓘ |
| watercourse | Tuolumne 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: New Don Pedro Dam Description of subject: New Don Pedro Dam is a large earth-and-rockfill dam in California that creates Don Pedro Reservoir, a major water storage and hydroelectric facility serving irrigation, flood control, and recreation needs in the Tuolumne River basin.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Don Pedro Bar (historic mining area)
subject linked to:
Don Pedro Bar (historic mining area)
linked to: New Don Pedro Dam
linked to: New Don Pedro Dam