Tioga Dam
E837422
Tioga Dam is a flood-control and water-management structure on the Tioga River in Pennsylvania, forming part of a reservoir system used for recreation and regional water regulation.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Tioga Dam canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9343808 — 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: Tioga Dam Context triple: [Tioga River, impoundedBy, Tioga Dam]
-
A.
Goodwin Dam
Goodwin Dam is a concrete gravity diversion dam on California’s Stanislaus River that helps regulate river flow and supplies irrigation water to surrounding agricultural areas.
-
B.
Harriman Dam
Harriman Dam is a hydroelectric dam in Vermont that impounds the Deerfield River to form Harriman Reservoir, one of the state’s largest lakes.
-
C.
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.
-
D.
Island Park Dam
Island Park Dam is an earthfill dam on the Henrys Fork of the Snake River in eastern Idaho, primarily used for irrigation water storage and flood control.
-
E.
Merwin Dam
Merwin Dam is a hydroelectric dam on Washington State’s Lewis River that forms Lake Merwin and generates power for 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: Tioga Dam Target entity description: Tioga Dam is a flood-control and water-management structure on the Tioga River in Pennsylvania, forming part of a reservoir system used for recreation and regional water regulation.
-
A.
Goodwin Dam
Goodwin Dam is a concrete gravity diversion dam on California’s Stanislaus River that helps regulate river flow and supplies irrigation water to surrounding agricultural areas.
-
B.
Harriman Dam
Harriman Dam is a hydroelectric dam in Vermont that impounds the Deerfield River to form Harriman Reservoir, one of the state’s largest lakes.
-
C.
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.
-
D.
Island Park Dam
Island Park Dam is an earthfill dam on the Henrys Fork of the Snake River in eastern Idaho, primarily used for irrigation water storage and flood control.
-
E.
Merwin Dam
Merwin Dam is a hydroelectric dam on Washington State’s Lewis River that forms Lake Merwin and generates power for the region.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
earth-fill dam
ⓘ
flood control structure ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| completedIn | 1978 ⓘ |
| constructionBegan | 1971 ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| crosses | Tioga River NERFINISHED ⓘ |
| designedFor |
flood damage reduction
ⓘ
flow regulation ⓘ |
| formsReservoir | Tioga Lake NERFINISHED ⓘ |
| hasEmbankmentType | earth and rock-fill ⓘ |
| hasRecreationalActivity |
boating
ⓘ
camping ⓘ fishing ⓘ hiking ⓘ |
| hasSpillway | yes ⓘ |
| height |
157 feet
ⓘ
48 meters ⓘ |
| isUpstreamOf | Tioga–Hammond Lakes recreation area NERFINISHED ⓘ |
| length |
1,940 meters
ⓘ
6,360 feet ⓘ |
| locatedIn |
Pennsylvania
ⓘ
Tioga County, Pennsylvania NERFINISHED ⓘ |
| locatedInCountry |
United States of America
ⓘ
surface form:
United States
|
| locatedNear | Mansfield, Pennsylvania NERFINISHED ⓘ |
| locatedOnRiver | Tioga River NERFINISHED ⓘ |
| locatedUpstreamFrom | Hammond Dam NERFINISHED ⓘ |
| managedBy | United States Army Corps of Engineers NERFINISHED ⓘ |
| nearBorderWith | New York NERFINISHED ⓘ |
| opened | 1978 ⓘ |
| operatedBy | United States Army Corps of Engineers NERFINISHED ⓘ |
| ownedBy | United States government ⓘ |
| partOf |
Susquehanna River watershed
NERFINISHED
ⓘ
Tioga–Hammond Lakes project NERFINISHED ⓘ |
| projectAuthorizedBy | U.S. Congress NERFINISHED ⓘ |
| purpose |
flood control
ⓘ
recreation ⓘ regional water regulation ⓘ water management ⓘ |
| regionServed |
north-central Pennsylvania
NERFINISHED
ⓘ
southern New York ⓘ |
| reservoirCapacity |
120000000 cubic meters
ⓘ
97,000 acre-feet ⓘ |
| usedFor |
downstream flood mitigation
ⓘ
reservoir-based recreation ⓘ |
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: Tioga Dam Description of subject: Tioga Dam is a flood-control and water-management structure on the Tioga River in Pennsylvania, forming part of a reservoir system used for recreation and regional water regulation.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.