Sam Rayburn Dam
E717861
Sam Rayburn Dam is a large earthen dam on the Angelina River in East Texas that provides flood control, hydroelectric power, and water storage for the surrounding region.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Sam Rayburn Dam canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T8073706 — 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: Sam Rayburn Dam Context triple: [Sam Rayburn Reservoir, createdBy, Sam Rayburn Dam]
-
A.
Longhorn Dam
Longhorn Dam is a concrete dam on the Colorado River in Austin, Texas, that impounds the river to form Lady Bird Lake and helps manage water levels and flow through the city.
-
B.
Lewisville Dam
Lewisville Dam is an earthen embankment dam in North Texas that impounds the Elm Fork of the Trinity River to form Lewisville Lake for flood control, water supply, and recreation.
-
C.
Big Bend Dam
Big Bend Dam is a large hydroelectric and flood-control dam on the Missouri River in South Dakota, forming Lake Sharpe as part of the Pick–Sloan Missouri Basin Program.
-
D.
Richard B. Russell Dam
Richard B. Russell Dam is a hydroelectric and flood-control structure on the Savannah River that creates Richard B. Russell Lake along the Georgia–South Carolina border.
-
E.
Fort Randall Dam
Fort Randall Dam is a large U.S. Army Corps of Engineers hydroelectric and flood-control dam on the Missouri River in South Dakota, forming Lake Francis Case.
- 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: Sam Rayburn Dam Target entity description: Sam Rayburn Dam is a large earthen dam on the Angelina River in East Texas that provides flood control, hydroelectric power, and water storage for the surrounding region.
-
A.
Longhorn Dam
Longhorn Dam is a concrete dam on the Colorado River in Austin, Texas, that impounds the river to form Lady Bird Lake and helps manage water levels and flow through the city.
-
B.
Lewisville Dam
Lewisville Dam is an earthen embankment dam in North Texas that impounds the Elm Fork of the Trinity River to form Lewisville Lake for flood control, water supply, and recreation.
-
C.
Big Bend Dam
Big Bend Dam is a large hydroelectric and flood-control dam on the Missouri River in South Dakota, forming Lake Sharpe as part of the Pick–Sloan Missouri Basin Program.
-
D.
Richard B. Russell Dam
Richard B. Russell Dam is a hydroelectric and flood-control structure on the Savannah River that creates Richard B. Russell Lake along the Georgia–South Carolina border.
-
E.
Fort Randall Dam
Fort Randall Dam is a large U.S. Army Corps of Engineers hydroelectric and flood-control dam on the Missouri River in South Dakota, forming Lake Francis Case.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
earthfill dam
ⓘ
flood control structure ⓘ hydroelectric dam ⓘ |
| alsoKnownAs | McGee Bend Dam NERFINISHED ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| constructionBegan | 1956 ⓘ |
| constructionMaterial | earthfill ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| hasPowerPlant | Sam Rayburn Dam Powerhouse NERFINISHED ⓘ |
| hasSpillwayType | gated spillway ⓘ |
| height | 120 feet ⓘ |
| impounds | Sam Rayburn Reservoir NERFINISHED ⓘ |
| installedCapacity | 120 megawatts ⓘ |
| isPartOf | U.S. Army Corps of Engineers flood control system in Texas NERFINISHED ⓘ |
| isUpstreamOf | Town Bluff Dam NERFINISHED ⓘ |
| length | 19,430 feet ⓘ |
| locatedIn |
East Texas
NERFINISHED
ⓘ
Jasper County, Texas NERFINISHED ⓘ Texas ⓘ United States of America ⓘ
surface form:
United States
|
| locatedOnRiver | Angelina River NERFINISHED ⓘ |
| managedBy | U.S. Army Corps of Engineers Fort Worth District NERFINISHED ⓘ |
| namedAfter | Sam Rayburn NERFINISHED ⓘ |
| nearCity |
Jasper, Texas
NERFINISHED
ⓘ
Lufkin, Texas NERFINISHED ⓘ |
| openingDate | 1965 ⓘ |
| operator | United States Army Corps of Engineers NERFINISHED ⓘ |
| owner | United States Army Corps of Engineers NERFINISHED ⓘ |
| partOf | Angelina-Neches River Basin projects NERFINISHED ⓘ |
| providesFloodControlFor |
Neches River basin
NERFINISHED
ⓘ
lower Angelina River basin ⓘ |
| providesWaterSupplyTo |
industrial users in East Texas
ⓘ
municipal users in East Texas ⓘ |
| purpose |
flood control
ⓘ
hydroelectric power generation ⓘ recreation ⓘ water supply ⓘ |
| regionServed |
East Texas
NERFINISHED
ⓘ
lower Neches River basin NERFINISHED ⓘ |
| regulatesFlowOf | Angelina River NERFINISHED ⓘ |
| reservoirName | Sam Rayburn Reservoir NERFINISHED ⓘ |
| reservoirSurfaceArea | 114,500 acres ⓘ |
| reservoirTotalCapacity | 3,997,600 acre-feet ⓘ |
| supportsRecreation |
boating
ⓘ
camping ⓘ fishing ⓘ |
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: Sam Rayburn Dam Description of subject: Sam Rayburn Dam is a large earthen dam on the Angelina River in East Texas that provides flood control, hydroelectric power, and water storage for the surrounding region.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Sam Rayburn Reservoir
subject surface form:
Sam Rayburn Reservoir