Wyman Dam
E295088
Wyman Dam is a hydroelectric dam in Maine that impounds the Kennebec River to form Wyman Lake and generate power.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Wyman Dam canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2749265 — 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: Wyman Dam Context triple: [Kennebec River, hasDam, Wyman Dam]
-
A.
Forestville Dam
Forestville Dam is a hydroelectric and recreational dam located on the Dead River near Marquette in Michigan’s Upper Peninsula.
-
B.
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.
-
C.
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.
-
D.
McClure Dam
McClure Dam is a hydroelectric dam on the Dead River in Michigan, forming McClure Basin and providing power and water management for the surrounding region.
-
E.
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.
- 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: Wyman Dam Target entity description: Wyman Dam is a hydroelectric dam in Maine that impounds the Kennebec River to form Wyman Lake and generate power.
-
A.
Forestville Dam
Forestville Dam is a hydroelectric and recreational dam located on the Dead River near Marquette in Michigan’s Upper Peninsula.
-
B.
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.
-
C.
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.
-
D.
McClure Dam
McClure Dam is a hydroelectric dam on the Dead River in Michigan, forming McClure Basin and providing power and water management for the surrounding region.
-
E.
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.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
gravity dam
ⓘ
hydroelectric dam ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| category |
Buildings and structures in Somerset County, Maine
ⓘ
Dams in Maine ⓘ Hydroelectric power plants in Maine ⓘ |
| commissioned | 1930 ⓘ |
| constructionBegan | 1928 ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| createsReservoir | Wyman Lake NERFINISHED ⓘ |
| energySource | hydropower ⓘ |
| gridConnection |
North American power transmission grid
ⓘ
surface form:
New England power grid
|
| hasReservoir | Wyman Lake NERFINISHED ⓘ |
| hasSpillway | yes ⓘ |
| height |
155 feet
ⓘ
47 meters ⓘ |
| impounds | Kennebec River ⓘ |
| length |
3,000 feet
ⓘ
914 meters ⓘ |
| locatedIn |
Maine
ⓘ
Somerset County, Maine ⓘ |
| locatedOn | Kennebec River ⓘ |
| namedAfter | Walter Wyman ⓘ |
| nearestCity | Bingham, Maine NERFINISHED ⓘ |
| numberOfTurbines | 3 ⓘ |
| openingYear | 1930 ⓘ |
| operator | Brookfield Renewable Partners ⓘ |
| originalDeveloper | Central Maine Power Company ⓘ |
| owner | Brookfield Renewable Partners ⓘ |
| partOf |
Skowhegan Dam
ⓘ
surface form:
Kennebec River hydroelectric system
|
| plantCapacity | 207 MW ⓘ |
| plantType | run-of-river and storage ⓘ |
| purpose |
hydroelectric power generation
ⓘ
power generation ⓘ |
| region | New England ⓘ |
| reservoirName | Wyman Lake NERFINISHED ⓘ |
| reservoirNameEtymology | named after Walter Wyman ⓘ |
| reservoirSurfaceArea |
about 20 square kilometers
ⓘ
about 5,000 acres ⓘ |
| reservoirUse |
boating
ⓘ
fishing ⓘ recreation ⓘ |
| riverSystem | Kennebec River ⓘ |
| state | Maine ⓘ |
| turbineType | Francis turbine ⓘ |
| watercourse | Kennebec 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: Wyman Dam Description of subject: Wyman Dam is a hydroelectric dam in Maine that impounds the Kennebec River to form Wyman Lake and generate power.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.