Columbus Lock and Dam
E845017
Columbus Lock and Dam is a navigation and flood-control structure on the Tombigbee River in Mississippi that helps regulate water levels and support commercial river traffic.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Columbus Lock and Dam canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10151561 — 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: Columbus Lock and Dam Context triple: [Tombigbee River, hasLockAndDam, Columbus Lock and Dam]
-
A.
Franklin Lock and Dam
Franklin Lock and Dam is a water control structure on Florida’s Caloosahatchee River that manages river flow, navigation, and flood control as part of the region’s water management system.
-
B.
Murray Lock and Dam
Murray Lock and Dam is a navigation and flood-control structure on the Arkansas River near Little Rock, Arkansas, that helps regulate river flow and support commercial barge traffic.
-
C.
Dresden Island Lock and Dam
Dresden Island Lock and Dam is a navigation and flood-control structure on the Illinois Waterway that helps regulate river levels and facilitate barge traffic in northeastern Illinois.
-
D.
Wheeler Lock and Dam
Wheeler Lock and Dam is a major navigation and hydroelectric structure on the Tennessee River in northern Alabama, forming Wheeler Lake and facilitating river traffic and power generation.
-
E.
McNary Lock and Dam
McNary Lock and Dam is a navigation lock facility integrated into the McNary Dam complex on the Columbia River, enabling river traffic to bypass the dam.
- 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: Columbus Lock and Dam Target entity description: Columbus Lock and Dam is a navigation and flood-control structure on the Tombigbee River in Mississippi that helps regulate water levels and support commercial river traffic.
-
A.
Franklin Lock and Dam
Franklin Lock and Dam is a water control structure on Florida’s Caloosahatchee River that manages river flow, navigation, and flood control as part of the region’s water management system.
-
B.
Murray Lock and Dam
Murray Lock and Dam is a navigation and flood-control structure on the Arkansas River near Little Rock, Arkansas, that helps regulate river flow and support commercial barge traffic.
-
C.
Dresden Island Lock and Dam
Dresden Island Lock and Dam is a navigation and flood-control structure on the Illinois Waterway that helps regulate river levels and facilitate barge traffic in northeastern Illinois.
-
D.
Wheeler Lock and Dam
Wheeler Lock and Dam is a major navigation and hydroelectric structure on the Tennessee River in northern Alabama, forming Wheeler Lake and facilitating river traffic and power generation.
-
E.
McNary Lock and Dam
McNary Lock and Dam is a navigation lock facility integrated into the McNary Dam complex on the Columbia River, enabling river traffic to bypass the dam.
- F. None of above. chosen
Statements (32)
| Predicate | Object |
|---|---|
| instanceOf |
flood-control structure
ⓘ
lock and dam ⓘ navigation structure ⓘ |
| affects |
flood risk along the Tombigbee River
ⓘ
river traffic on the Tombigbee River ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| hasComponent |
dam
ⓘ
gates ⓘ navigation lock ⓘ spillway ⓘ |
| hasFunction |
allows vessels to bypass river elevation changes
ⓘ
improves navigability of the Tombigbee River ⓘ regulates downstream water levels ⓘ regulates upstream water levels ⓘ |
| isPartOfSystem | federal navigation projects in the southeastern United States ⓘ |
| locatedIn |
Mississippi
ⓘ
linked to:
Mississippi River
United States ⓘ
linked to:
United States of America
|
| locatedInBasin |
Tombigbee River basin
ⓘ
linked to:
Tombigbee River
|
| locatedOnWaterway | Tombigbee River ⓘ |
| managingAgency |
United States Army Corps of Engineers
ⓘ
linked to:
U.S. Army Corps of Engineers
|
| nearCity | Columbus, Mississippi ⓘ |
| operator |
United States Army Corps of Engineers
ⓘ
linked to:
U.S. Army Corps of Engineers
|
| partOf |
Tennessee–Tombigbee Waterway
ⓘ
linked to:
Tennessee-Tombigbee Waterway
|
| purpose |
flood control
ⓘ
navigation ⓘ support of commercial river traffic ⓘ water level regulation ⓘ |
| river | Tombigbee River ⓘ |
| state | Mississippi ⓘ |
| usedFor |
commercial barge traffic
ⓘ
recreational boating ⓘ |
| waterwayType | inland waterway infrastructure ⓘ |
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: Columbus Lock and Dam Description of subject: Columbus Lock and Dam is a navigation and flood-control structure on the Tombigbee River in Mississippi that helps regulate water levels and support commercial river traffic.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.