Mississippi River system locks and dams
E433381
The Mississippi River system locks and dams are a network of engineered structures that regulate water levels and enable commercial navigation along the Mississippi and its connected inland waterways.
All labels observed (7)
How this entity was disambiguated
This entity first appeared as the object of triple T4347740 — 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: Mississippi River system locks and dams Context triple: [Inland Waterway System of the United States, hasPart, Mississippi River system locks and dams]
-
A.
McClellan–Kerr Arkansas River Navigation System
The McClellan–Kerr Arkansas River Navigation System is a major inland waterway project that transforms the Arkansas River and connected channels into a navigable route for commercial shipping between the Midwest and the Gulf of Mexico.
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B.
Inland Waterway System of the United States
The Inland Waterway System of the United States is an extensive network of interconnected rivers, canals, and coastal routes that supports commercial shipping, recreation, and transportation across much of the country.
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C.
Illinois Waterway system
The Illinois Waterway system is a network of rivers, canals, and locks in Illinois that provides a vital navigable link between the Great Lakes and the Mississippi River.
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D.
Dardanelle Lock and Dam
Dardanelle Lock and Dam is a major navigation and hydroelectric structure on the Arkansas River in Arkansas, forming part of the McClellan–Kerr Arkansas River Navigation System.
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E.
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.
- 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: Mississippi River system locks and dams Target entity description: The Mississippi River system locks and dams are a network of engineered structures that regulate water levels and enable commercial navigation along the Mississippi and its connected inland waterways.
-
A.
McClellan–Kerr Arkansas River Navigation System
The McClellan–Kerr Arkansas River Navigation System is a major inland waterway project that transforms the Arkansas River and connected channels into a navigable route for commercial shipping between the Midwest and the Gulf of Mexico.
-
B.
Inland Waterway System of the United States
The Inland Waterway System of the United States is an extensive network of interconnected rivers, canals, and coastal routes that supports commercial shipping, recreation, and transportation across much of the country.
-
C.
Illinois Waterway system
The Illinois Waterway system is a network of rivers, canals, and locks in Illinois that provides a vital navigable link between the Great Lakes and the Mississippi River.
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D.
Dardanelle Lock and Dam
Dardanelle Lock and Dam is a major navigation and hydroelectric structure on the Arkansas River in Arkansas, forming part of the McClellan–Kerr Arkansas River Navigation System.
-
E.
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.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
inland waterway infrastructure
ⓘ
lock and dam system ⓘ navigation infrastructure ⓘ |
| associatedWithAgency |
U.S. Army Corps of Engineers Louisville District
NERFINISHED
ⓘ
U.S. Army Corps of Engineers Mississippi Valley Division NERFINISHED ⓘ U.S. Army Corps of Engineers Rock Island District NERFINISHED ⓘ U.S. Army Corps of Engineers St. Louis District NERFINISHED ⓘ U.S. Army Corps of Engineers St. Paul District NERFINISHED ⓘ |
| associatedWithProgram | Inland Marine Transportation System NERFINISHED ⓘ |
| constructionMaterial |
concrete
ⓘ
steel ⓘ |
| country | United States of America ⓘ |
| designedForVesselType |
commercial freight vessels
ⓘ
towboats with barges ⓘ |
| hasPart |
Arkansas River navigation system locks and dams
NERFINISHED
ⓘ
Cumberland River lock and dam system NERFINISHED ⓘ Illinois Waterway lock and dam system NERFINISHED ⓘ Ohio River lock and dam system NERFINISHED ⓘ Tennessee River lock and dam system NERFINISHED ⓘ Upper Mississippi River lock and dam system NERFINISHED ⓘ |
| impact |
creation of navigation pools
ⓘ
facilitation of year-round navigation ⓘ fragmentation of aquatic habitats ⓘ modification of natural river flow regime ⓘ |
| locatedIn | Mississippi River basin NERFINISHED ⓘ |
| locatedOnWaterway |
Arkansas River
NERFINISHED
ⓘ
Cumberland River NERFINISHED ⓘ Illinois Waterway NERFINISHED ⓘ Lower Mississippi River NERFINISHED ⓘ Missouri River NERFINISHED ⓘ Ohio River NERFINISHED ⓘ Tennessee River NERFINISHED ⓘ Upper Mississippi River NERFINISHED ⓘ |
| managingOrganization | United States Army Corps of Engineers NERFINISHED ⓘ |
| primaryFunction |
flood control support
ⓘ
improvement of channel depth ⓘ regulation of water levels ⓘ support of commercial navigation ⓘ |
| regulates |
navigation channel depth
ⓘ
river stage levels ⓘ |
| typicalLockChamberLength |
1200 feet
ⓘ
600 feet ⓘ |
| typicalLockChamberWidth | 110 feet ⓘ |
| usedFor |
agricultural exports transport
ⓘ
barge transportation ⓘ bulk commodity transport ⓘ coal transport ⓘ industrial goods transport ⓘ petroleum products transport ⓘ |
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: Mississippi River system locks and dams Description of subject: The Mississippi River system locks and dams are a network of engineered structures that regulate water levels and enable commercial navigation along the Mississippi and its connected inland waterways.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Mississippi River levee system
this entity surface form:
Mississippi River navigation system
this entity surface form:
Mississippi River and Tributaries Project
this entity surface form:
Upper Mississippi River 9-Foot Channel Project
this entity surface form:
Mississippi River locks and dams
this entity surface form:
United States Army Corps of Engineers locks