Lewisville Dam
E330798
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.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Lewisville Dam canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T2944423 — 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: Lewisville Dam Context triple: [Lewisville Lake, hasStructure, Lewisville 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.
W. Kerr Scott Dam
W. Kerr Scott Dam is a U.S. Army Corps of Engineers flood-control and recreation dam in North Carolina that creates W. Kerr Scott Reservoir on the Yadkin River.
-
C.
High Rock Dam
High Rock Dam is a hydroelectric dam in North Carolina that impounds the Yadkin River to form High Rock Lake, a major reservoir for power generation and recreation.
-
D.
Jim Woodruff Dam
Jim Woodruff Dam is a hydroelectric and flood-control dam on the Apalachicola River at the Florida–Georgia border, forming Lake Seminole and helping regulate water flow in the region.
-
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: Lewisville Dam Target entity description: 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.
-
A.
Forestville Dam
Forestville Dam is a hydroelectric and recreational dam located on the Dead River near Marquette in Michigan’s Upper Peninsula.
-
B.
W. Kerr Scott Dam
W. Kerr Scott Dam is a U.S. Army Corps of Engineers flood-control and recreation dam in North Carolina that creates W. Kerr Scott Reservoir on the Yadkin River.
-
C.
High Rock Dam
High Rock Dam is a hydroelectric dam in North Carolina that impounds the Yadkin River to form High Rock Lake, a major reservoir for power generation and recreation.
-
D.
Jim Woodruff Dam
Jim Woodruff Dam is a hydroelectric and flood-control dam on the Apalachicola River at the Florida–Georgia border, forming Lake Seminole and helping regulate water flow in the region.
-
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 |
dam
ⓘ
earthen embankment dam ⓘ |
| associatedReservoirUse |
boating
ⓘ
camping ⓘ fishing ⓘ swimming ⓘ |
| associatedWith | City of Dallas water supply ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| constructionBegan | 1948 ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| createsReservoir | Lewisville Lake ⓘ |
| crosses |
Elm Fork Trinity River
ⓘ
surface form:
Elm Fork of the Trinity River
|
| damType |
earthfill
ⓘ
embankment ⓘ |
| designedBy |
U.S. Army Corps of Engineers
ⓘ
surface form:
United States Army Corps of Engineers
|
| hasSpillway | Lewisville Dam spillway ⓘ |
| impounds |
Elm Fork Trinity River
ⓘ
surface form:
Elm Fork of the Trinity River
|
| locatedIn | North Texas ⓘ |
| locatedInCounty | Denton County, Texas ⓘ |
| locatedInState | Texas ⓘ |
| locatedNearCity | Lewisville, Texas ⓘ |
| locatedOnRiver |
Elm Fork Trinity River
ⓘ
surface form:
Elm Fork of the Trinity River
|
| managingAgency |
U.S. Army Corps of Engineers
ⓘ
surface form:
U.S. Army Corps of Engineers Fort Worth District
|
| nearbyCommunity |
Town of Hickory Creek, Texas
ⓘ
surface form:
Hickory Creek, Texas
Lake Dallas ⓘ
surface form:
Lake Dallas, Texas
City of The Colony, Texas ⓘ
surface form:
The Colony, Texas
|
| nearMajorCity |
Dallas, Texas
ⓘ
Denton, Texas ⓘ |
| openingYear | 1955 ⓘ |
| operator |
U.S. Army Corps of Engineers
ⓘ
surface form:
United States Army Corps of Engineers
|
| owner |
U.S. Army Corps of Engineers
ⓘ
surface form:
United States Army Corps of Engineers
|
| partOf |
Trinity River
ⓘ
surface form:
Trinity River basin
|
| partOfProject |
Lewisville Lake
ⓘ
surface form:
Lewisville Lake project
|
| primaryFunction | flood risk management ⓘ |
| purpose |
flood control
ⓘ
recreation ⓘ water supply ⓘ |
| region | Dallas–Fort Worth metroplex ⓘ |
| reservoirFormerName |
Cedar Creek Reservoir
ⓘ
surface form:
Garza–Little Elm Reservoir
|
| reservoirName | Lewisville Lake ⓘ |
| riverSystem | Trinity River ⓘ |
| safetyClassification | high-hazard potential dam ⓘ |
| secondaryFunction |
industrial water supply
ⓘ
municipal water supply ⓘ recreational use ⓘ |
| watercourse |
Elm Fork Trinity River
ⓘ
surface form:
Elm Fork of the Trinity 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: Lewisville Dam Description of subject: 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.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.