Lewis Smith Dam
E651962
Lewis Smith Dam is a large earthen hydroelectric dam in northwestern Alabama that impounds the Sipsey Fork of the Black Warrior River to create Lewis Smith Lake for power generation, flood control, and recreation.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Lewis Smith Dam canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T6845134 — 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: Lewis Smith Dam Context triple: [Lewis Smith Lake, formedByDam, Lewis Smith Dam]
-
A.
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.
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B.
Morris Sheppard Dam
Morris Sheppard Dam is a large hydroelectric and flood-control structure in Texas that impounds the Brazos River to form Possum Kingdom Lake.
-
C.
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.
-
D.
Jackson Bluff Dam
Jackson Bluff Dam is a hydroelectric dam on the Ochlockonee River in Florida, best known for impounding the river to form Lake Talquin.
-
E.
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.
- 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: Lewis Smith Dam Target entity description: Lewis Smith Dam is a large earthen hydroelectric dam in northwestern Alabama that impounds the Sipsey Fork of the Black Warrior River to create Lewis Smith Lake for power generation, flood control, and recreation.
-
A.
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.
-
B.
Morris Sheppard Dam
Morris Sheppard Dam is a large hydroelectric and flood-control structure in Texas that impounds the Brazos River to form Possum Kingdom Lake.
-
C.
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.
-
D.
Jackson Bluff Dam
Jackson Bluff Dam is a hydroelectric dam on the Ochlockonee River in Florida, best known for impounding the river to form Lake Talquin.
-
E.
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.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
earthen dam
ⓘ
hydroelectric dam ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| constructionBegan | 1957 ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| createsReservoir | Lewis Smith Lake NERFINISHED ⓘ |
| energySource | hydropower ⓘ |
| hasPowerPlant | Lewis Smith Dam Powerhouse NERFINISHED ⓘ |
| hasRecreationalActivity |
boating
ⓘ
fishing ⓘ swimming ⓘ waterskiing ⓘ |
| hasReservoir | Lewis Smith Lake NERFINISHED ⓘ |
| heightAboveFoundation | about 300 feet ⓘ |
| impounds |
Sipsey Fork
NERFINISHED
ⓘ
Sipsey Fork of the Black Warrior River NERFINISHED ⓘ |
| length | about 2,200 feet ⓘ |
| locatedIn | Alabama ⓘ |
| locatedInCounty |
Cullman County, Alabama
NERFINISHED
ⓘ
Walker County, Alabama NERFINISHED ⓘ Winston County, Alabama NERFINISHED ⓘ |
| locatedInRegion | northwestern Alabama NERFINISHED ⓘ |
| locatedOnRiver |
Black Warrior River
NERFINISHED
ⓘ
Sipsey Fork NERFINISHED ⓘ |
| namedAfter | Lewis Martin Smith NERFINISHED ⓘ |
| openingDate | 1961 ⓘ |
| operator | Alabama Power Company NERFINISHED ⓘ |
| ownedBy | Alabama Power Company NERFINISHED ⓘ |
| partOf | Black Warrior River basin NERFINISHED ⓘ |
| purpose |
flood control
ⓘ
hydroelectric power generation ⓘ power generation ⓘ recreation ⓘ |
| region |
Southern United States
ⓘ
surface form:
Southeastern United States
|
| reservoirMaxDepth | over 250 feet ⓘ |
| reservoirName | Lewis Smith Lake NERFINISHED ⓘ |
| reservoirPurpose |
flood control
ⓘ
hydroelectric power generation ⓘ recreation ⓘ |
| reservoirShorelineLength | over 500 miles ⓘ |
| reservoirSurfaceArea | about 21,000 acres ⓘ |
| river | Black Warrior River NERFINISHED ⓘ |
| structureType | earth-fill dam ⓘ |
| usedFor |
fish and wildlife habitat
ⓘ
navigation support ⓘ water supply ⓘ |
| watercourse | Sipsey Fork NERFINISHED ⓘ |
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: Lewis Smith Dam Description of subject: Lewis Smith Dam is a large earthen hydroelectric dam in northwestern Alabama that impounds the Sipsey Fork of the Black Warrior River to create Lewis Smith Lake for power generation, flood control, and recreation.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.