Lake Houston Dam
E940005
Lake Houston Dam is a flood-control and water-supply structure on the San Jacinto River that creates Lake Houston, a major reservoir serving the Houston, Texas area.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Lake Houston Dam canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T11624142 — 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: Lake Houston Dam Context triple: [San Jacinto River, impoundedBy, Lake Houston Dam]
-
A.
Sam Rayburn Dam
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.
-
B.
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.
-
C.
Lake Houston
Lake Houston is a large reservoir in northeast Houston, Texas, primarily serving as a major source of drinking water and recreation for the Houston metropolitan area.
-
D.
Lake Conroe
Lake Conroe is a large man-made reservoir in southeast Texas known for boating, fishing, and serving as a major water supply and recreation area for the Houston region.
-
E.
Ray Roberts Lake
Ray Roberts Lake is a large reservoir in North Texas popular for fishing, boating, and outdoor recreation within Ray Roberts Lake State Park.
- 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: Lake Houston Dam Target entity description: Lake Houston Dam is a flood-control and water-supply structure on the San Jacinto River that creates Lake Houston, a major reservoir serving the Houston, Texas area.
-
A.
Sam Rayburn Dam
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.
-
B.
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.
-
C.
Lake Houston
Lake Houston is a large reservoir in northeast Houston, Texas, primarily serving as a major source of drinking water and recreation for the Houston metropolitan area.
-
D.
Lake Conroe
Lake Conroe is a large man-made reservoir in southeast Texas known for boating, fishing, and serving as a major water supply and recreation area for the Houston region.
-
E.
Ray Roberts Lake
Ray Roberts Lake is a large reservoir in North Texas popular for fishing, boating, and outdoor recreation within Ray Roberts Lake State Park.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
dam
ⓘ
flood-control structure ⓘ water-supply structure ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| county | Harris County, Texas NERFINISHED ⓘ |
| createsReservoir | Lake Houston NERFINISHED ⓘ |
| downstreamFrom | Lake Conroe Dam NERFINISHED ⓘ |
| function |
maintains Lake Houston water level
ⓘ
regulates flow of the San Jacinto River ⓘ |
| hasGates | yes ⓘ |
| hasHazardPotential | high (due to downstream development) ⓘ |
| hasSpillway | yes ⓘ |
| influencesFloodRiskFor |
Atascocita, Texas
NERFINISHED
ⓘ
Humble, Texas NERFINISHED ⓘ Kingwood, Houston, Texas NERFINISHED ⓘ northeast Houston NERFINISHED ⓘ |
| isInfrastructureType |
flood mitigation infrastructure
ⓘ
water resources infrastructure ⓘ |
| isMajorReservoirSourceFor | Houston metropolitan area NERFINISHED ⓘ |
| locatedInCountrySubdivision | City of Houston city limits (far northeast) ⓘ |
| locatedInMetropolitanArea | Houston–The Woodlands–Sugar Land metropolitan area NERFINISHED ⓘ |
| locatedInWatershed | San Jacinto River basin NERFINISHED ⓘ |
| locatedNear |
Atascocita, Texas
NERFINISHED
ⓘ
Kingwood, Houston, Texas NERFINISHED ⓘ Sheldon, Texas NERFINISHED ⓘ |
| locatedOnRiver | San Jacinto River NERFINISHED ⓘ |
| name | Lake Houston Dam NERFINISHED ⓘ |
| operator | City of Houston Public Works NERFINISHED ⓘ |
| owner | City of Houston NERFINISHED ⓘ |
| partOf | Houston regional water supply system ⓘ |
| partOfSystem | Houston surface water reservoirs ⓘ |
| purpose |
flood control
ⓘ
industrial water supply ⓘ municipal water supply ⓘ recreation support ⓘ |
| regionServed | Greater Houston area NERFINISHED ⓘ |
| relatedReservoir | Lake Houston NERFINISHED ⓘ |
| servesCity | Houston, Texas NERFINISHED ⓘ |
| state | Texas ⓘ |
| suppliesWaterTo |
City of Houston water system
NERFINISHED
ⓘ
suburban municipalities in Greater Houston ⓘ |
| supportsUse |
drinking water
ⓘ
fishing on Lake Houston ⓘ industrial processing ⓘ recreational boating on Lake Houston ⓘ |
| waterBodyControlled | Lake Houston NERFINISHED ⓘ |
| waterBodyDownstream | San Jacinto River 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: Lake Houston Dam Description of subject: Lake Houston Dam is a flood-control and water-supply structure on the San Jacinto River that creates Lake Houston, a major reservoir serving the Houston, Texas area.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.