Derby Dam
E135848
Derby Dam is an early 20th-century diversion dam on Nevada’s Truckee River, built as part of the Newlands Reclamation Project to supply irrigation water to nearby agricultural lands.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Derby Dam canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T1090133 — 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: Derby Dam Context triple: [Truckee River, hasDam, Derby Dam]
-
A.
Melton Hill Dam
Melton Hill Dam is a Tennessee Valley Authority hydroelectric dam on the Clinch River in East Tennessee, forming Melton Hill Lake and providing power generation, recreation, and flood control for the Knoxville area.
-
B.
Norris Dam
Norris Dam is a Tennessee Valley Authority hydroelectric dam on the Clinch River in eastern Tennessee, notable as TVA’s first major dam project and a key component of regional flood control and power generation.
-
C.
Keswick Dam
Keswick Dam is a concrete gravity dam on the Sacramento River in Northern California that regulates flows and generates hydroelectric power as part of the region’s large federal water management system.
-
D.
Pickwick Landing Dam
Pickwick Landing Dam is a Tennessee Valley Authority hydroelectric and navigation dam on the Tennessee River in southwestern Tennessee.
-
E.
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.
- 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: Derby Dam Target entity description: Derby Dam is an early 20th-century diversion dam on Nevada’s Truckee River, built as part of the Newlands Reclamation Project to supply irrigation water to nearby agricultural lands.
-
A.
Melton Hill Dam
Melton Hill Dam is a Tennessee Valley Authority hydroelectric dam on the Clinch River in East Tennessee, forming Melton Hill Lake and providing power generation, recreation, and flood control for the Knoxville area.
-
B.
Norris Dam
Norris Dam is a Tennessee Valley Authority hydroelectric dam on the Clinch River in eastern Tennessee, notable as TVA’s first major dam project and a key component of regional flood control and power generation.
-
C.
Keswick Dam
Keswick Dam is a concrete gravity dam on the Sacramento River in Northern California that regulates flows and generates hydroelectric power as part of the region’s large federal water management system.
-
D.
Pickwick Landing Dam
Pickwick Landing Dam is a Tennessee Valley Authority hydroelectric and navigation dam on the Tennessee River in southwestern Tennessee.
-
E.
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.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
United States Bureau of Reclamation project
ⓘ
concrete dam ⓘ diversion dam ⓘ |
| associatedWith |
Lahontan Reservoir
ⓘ
Reclamation Act of 1902 ⓘ
surface form:
Newlands Reclamation Act of 1902
|
| basin | Great Basin ⓘ |
| constructionBegan | 1903 ⓘ |
| constructionMaterial | concrete ⓘ |
| constructionProgram | United States Reclamation Service early projects ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| designedBy |
Bureau of Reclamation
ⓘ
surface form:
United States Reclamation Service
|
| divertsWaterTo |
Truckee-Carson Project
ⓘ
surface form:
Truckee Canal
|
| elevation | approximately 4,150 feet above sea level ⓘ |
| feedsIrrigationDistrict | Truckee-Carson Irrigation District ⓘ |
| function | divert a portion of Truckee River flow into Truckee Canal ⓘ |
| hasEnvironmentalIssues |
fish habitat disruption
ⓘ
reduced flows to Pyramid Lake ⓘ |
| hasFishPassageIssues | yes ⓘ |
| hasSpillway | yes ⓘ |
| historicalEra | early 20th century ⓘ |
| hydrologicRole | diversion structure rather than major storage ⓘ |
| impactOn |
Pyramid Lake inflows
ⓘ
Truckee River flow regime ⓘ |
| listedOn | National Register of Historic Places ⓘ |
| locatedInState | Nevada ⓘ |
| locatedNear |
Reno, Nevada, United States
ⓘ
surface form:
Reno, Nevada
Sparks, Nevada ⓘ |
| locatedOnRiver | Truckee River ⓘ |
| namedAfter | nearby Derby railroad siding ⓘ |
| nearFeature |
Fernley
ⓘ
surface form:
Fernley, Nevada
Interstate 80 ⓘ
surface form:
Interstate 80 corridor
|
| NRHPListingType | historic district contributing structure ⓘ |
| NRHPSignificance | early federal reclamation project ⓘ |
| opened | 1905 ⓘ |
| operator |
Bureau of Reclamation
ⓘ
surface form:
United States Bureau of Reclamation
|
| ownedBy | United States government ⓘ |
| partOf | Newlands Reclamation Project ⓘ |
| projectNumber |
Newlands Reclamation Project
ⓘ
surface form:
Reclamation Project No. 1 (Newlands Project)
|
| purpose |
agricultural water supply
ⓘ
irrigation water diversion ⓘ |
| region | western Nevada ⓘ |
| relatedLegalIssues | water rights disputes on the Truckee River ⓘ |
| relatedTo | Pyramid Lake Paiute Tribe water rights ⓘ |
| suppliesIrrigationTo |
Lahontan Valley, Nevada
ⓘ
Newlands Irrigation Project lands ⓘ
surface form:
Newlands Project farmlands
|
| watershed |
Truckee River
ⓘ
surface form:
Truckee River basin
|
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: Derby Dam Description of subject: Derby Dam is an early 20th-century diversion dam on Nevada’s Truckee River, built as part of the Newlands Reclamation Project to supply irrigation water to nearby agricultural lands.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.