Gavins Point Dam
E330983
Gavins Point Dam is a major Missouri River dam near Yankton, South Dakota, known for hydroelectric power generation, flood control, and recreation on Lewis and Clark Lake.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Gavins Point Dam canonical | 5 |
| Gavins Point Dam Powerplant | 1 |
| Gavins Point Dam reservoir | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3071281 — 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: Gavins Point Dam Context triple: [Yankton, South Dakota, hasNotableLandmark, Gavins Point Dam]
-
A.
McNary Dam
McNary Dam is a large hydroelectric dam and navigation lock complex on the Columbia River in the Pacific Northwest of the United States.
-
B.
O'Shaughnessy Dam
O'Shaughnessy Dam is a concrete arch-gravity dam in Yosemite National Park that creates the Hetch Hetchy Reservoir, supplying water and hydroelectric power to the San Francisco Bay Area.
-
C.
Bonneville Dam
Bonneville Dam is a major hydroelectric and navigation dam on the Columbia River in the Pacific Northwest, known for power generation, fish ladders, and its role in regional river management.
-
D.
Palisade Dam
Palisade Dam is an irrigation and water storage structure located on the Sevier River in central Utah, supporting local agriculture and recreation.
-
E.
Buffalo Bill Dam
Buffalo Bill Dam is a historic concrete arch-gravity dam on the Shoshone River in Wyoming, once one of the tallest in the world and now a key engineering landmark and visitor attraction.
- 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: Gavins Point Dam Target entity description: Gavins Point Dam is a major Missouri River dam near Yankton, South Dakota, known for hydroelectric power generation, flood control, and recreation on Lewis and Clark Lake.
-
A.
McNary Dam
McNary Dam is a large hydroelectric dam and navigation lock complex on the Columbia River in the Pacific Northwest of the United States.
-
B.
O'Shaughnessy Dam
O'Shaughnessy Dam is a concrete arch-gravity dam in Yosemite National Park that creates the Hetch Hetchy Reservoir, supplying water and hydroelectric power to the San Francisco Bay Area.
-
C.
Bonneville Dam
Bonneville Dam is a major hydroelectric and navigation dam on the Columbia River in the Pacific Northwest, known for power generation, fish ladders, and its role in regional river management.
-
D.
Palisade Dam
Palisade Dam is an irrigation and water storage structure located on the Sevier River in central Utah, supporting local agriculture and recreation.
-
E.
Buffalo Bill Dam
Buffalo Bill Dam is a historic concrete arch-gravity dam on the Shoshone River in Wyoming, once one of the tallest in the world and now a key engineering landmark and visitor attraction.
- F. None of above. chosen
Statements (34)
| Predicate | Object |
|---|---|
| instanceOf |
dam
ⓘ
hydroelectric power station ⓘ |
| constructionStartDate | 1952 ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| energySource | hydropower ⓘ |
| hasPowerPlant |
Gavins Point Dam
self-linksurface differs
ⓘ
surface form:
Gavins Point Dam Powerplant
|
| hasReservoir | Lewis and Clark Lake NERFINISHED ⓘ |
| impounds | Lewis and Clark Lake NERFINISHED ⓘ |
| inflow | Missouri River ⓘ |
| locatedIn |
Nebraska
ⓘ
South Dakota ⓘ |
| locatedNear |
Cedar County, Nebraska
ⓘ
Yankton, South Dakota, United States ⓘ
surface form:
Yankton, South Dakota
|
| locatedOnRiver | Missouri River ⓘ |
| managingAgency | U.S. Army Corps of Engineers Omaha District ⓘ |
| namedAfter | Gavin’s Point (river bluff) ⓘ |
| openingDate | 1957 ⓘ |
| operator |
U.S. Army Corps of Engineers
ⓘ
surface form:
United States Army Corps of Engineers
|
| outflow | Missouri River ⓘ |
| owner |
U.S. Army Corps of Engineers
ⓘ
surface form:
United States Army Corps of Engineers
|
| partOf |
Missouri River
ⓘ
surface form:
Missouri River Mainstem System
Pick-Sloan Missouri Basin Program ⓘ
surface form:
Pick–Sloan Missouri Basin Program
|
| purpose |
flood control
ⓘ
hydroelectric power generation ⓘ navigation support ⓘ recreation ⓘ water supply ⓘ |
| reservoirLocation |
Nebraska
ⓘ
South Dakota ⓘ |
| reservoirName | Lewis and Clark Lake NERFINISHED ⓘ |
| usedFor |
boating
ⓘ
camping ⓘ sport fishing ⓘ wildlife observation ⓘ |
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: Gavins Point Dam Description of subject: Gavins Point Dam is a major Missouri River dam near Yankton, South Dakota, known for hydroelectric power generation, flood control, and recreation on Lewis and Clark Lake.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Yankton, South Dakota
this entity surface form:
Gavins Point Dam reservoir
this entity surface form:
Gavins Point Dam Powerplant