Prosser Creek Dam
E138860
Prosser Creek Dam is an earthfill dam in Nevada County, California, that creates Prosser Creek Reservoir for water storage, flood control, and recreation in the Truckee River basin.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Prosser Creek Dam canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T1090135 — 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: Prosser Creek Dam Context triple: [Truckee River, hasDam, Prosser Creek Dam]
-
A.
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.
-
B.
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.
-
C.
Conklingville Dam
Conklingville Dam is a concrete gravity dam in New York that created the Great Sacandaga Lake reservoir for flood control and hydroelectric power generation.
-
D.
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.
-
E.
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.
- 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: Prosser Creek Dam Target entity description: Prosser Creek Dam is an earthfill dam in Nevada County, California, that creates Prosser Creek Reservoir for water storage, flood control, and recreation in the Truckee River basin.
-
A.
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.
-
B.
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.
-
C.
Conklingville Dam
Conklingville Dam is a concrete gravity dam in New York that created the Great Sacandaga Lake reservoir for flood control and hydroelectric power generation.
-
D.
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.
-
E.
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.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf | earthfill dam ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| belongsToWaterSystem |
Truckee River
ⓘ
surface form:
Truckee River water system
|
| completedIn | 1962 ⓘ |
| constructionBegan | 1959 ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| county |
Nevada County, California
ⓘ
surface form:
Nevada County
|
| creates | Prosser Creek Reservoir ⓘ |
| crosses | Prosser Creek ⓘ |
| designedFor | flood peak reduction on Truckee River ⓘ |
| elevationOfCrest | ~5940 ft above sea level ⓘ |
| hasCatchmentArea | ~50 square miles ⓘ |
| hasSpillway | yes ⓘ |
| height | 130 ft ⓘ |
| isPartOf |
Truckee-Carson Project
ⓘ
surface form:
Truckee River Storage System
|
| length | 1630 ft ⓘ |
| locatedIn |
California, United States
ⓘ
surface form:
California
Nevada County, California ⓘ Sierra Nevada ⓘ
surface form:
Sierra Nevada region
Truckee River ⓘ
surface form:
Truckee River basin
|
| locatedNear |
Truckee
ⓘ
surface form:
Truckee, California
|
| managesWaterFor |
Pyramid Lake fishery
ⓘ
Truckee River ⓘ |
| material | earthfill ⓘ |
| nearProtectedArea | Tahoe National Forest ⓘ |
| operator |
Bureau of Reclamation
ⓘ
surface form:
United States Bureau of Reclamation
|
| partOf |
Truckee-Carson Project
ⓘ
surface form:
Washoe Project
|
| projectOwner |
Bureau of Reclamation
ⓘ
surface form:
United States Bureau of Reclamation
|
| purpose |
flood control
ⓘ
recreation ⓘ water storage ⓘ |
| recreationActivities |
boating
ⓘ
camping ⓘ fishing ⓘ |
| recreationAreaManager |
U.S. Forest Service
ⓘ
surface form:
United States Forest Service
|
| region | western United States ⓘ |
| reservoirAlsoKnownAs |
Prosser Creek Reservoir
ⓘ
surface form:
Prosser Reservoir
|
| reservoirCapacity | 29800 acre-feet ⓘ |
| reservoirName | Prosser Creek Reservoir ⓘ |
| reservoirSurfaceArea | 750 acres ⓘ |
| reservoirUse | seasonal storage ⓘ |
| riverBasin | Truckee River ⓘ |
| spillwayType | uncontrolled overflow ⓘ |
| state |
California, United States
ⓘ
surface form:
California
|
| usedFor |
downstream flow regulation
ⓘ
irrigation water supply ⓘ municipal water supply ⓘ |
| watercourse | Prosser Creek ⓘ |
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: Prosser Creek Dam Description of subject: Prosser Creek Dam is an earthfill dam in Nevada County, California, that creates Prosser Creek Reservoir for water storage, flood control, and recreation in the Truckee River basin.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.