Marseilles Lock and Dam
E368609
Marseilles Lock and Dam is a navigation and flood-control structure on the Illinois River that helps regulate water levels and vessel traffic as part of the Illinois Waterway.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Marseilles Lock and Dam canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3499139 — 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: Marseilles Lock and Dam Context triple: [Illinois Waterway system, hasPart, Marseilles Lock and Dam]
-
A.
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.
-
B.
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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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.
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D.
Fonserannes Locks
Fonserannes Locks is a historic multi-chamber lock staircase on the Canal du Midi near Béziers in southern France, renowned as one of the canal’s most impressive engineering works.
-
E.
Lockport Lock and Dam
Lockport Lock and Dam is a major lock and dam complex on the Chicago Sanitary and Ship Canal that controls water levels, aids navigation, and helps manage flood and wastewater flows between the Chicago area and the Des Plaines 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: Marseilles Lock and Dam Target entity description: Marseilles Lock and Dam is a navigation and flood-control structure on the Illinois River that helps regulate water levels and vessel traffic as part of the Illinois Waterway.
-
A.
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.
-
B.
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.
-
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.
Fonserannes Locks
Fonserannes Locks is a historic multi-chamber lock staircase on the Canal du Midi near Béziers in southern France, renowned as one of the canal’s most impressive engineering works.
-
E.
Lockport Lock and Dam
Lockport Lock and Dam is a major lock and dam complex on the Chicago Sanitary and Ship Canal that controls water levels, aids navigation, and helps manage flood and wastewater flows between the Chicago area and the Des Plaines River.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
flood-control structure
ⓘ
infrastructure on the Illinois River ⓘ lock and dam ⓘ navigation structure ⓘ |
| alsoUsedBy | recreational vessels ⓘ |
| basin |
Illinois River
ⓘ
surface form:
Illinois River basin
|
| classification | federal navigation project ⓘ |
| connectedTo |
downstream Starved Rock Lock and Dam
ⓘ
upstream Dresden Island Lock and Dam ⓘ |
| constructionCompleted | 1930s ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| function |
regulate vessel traffic
ⓘ
regulate water levels ⓘ |
| hasComponent |
control house
ⓘ
lock chamber ⓘ spillway ⓘ |
| locatedIn | LaSalle County, Illinois NERFINISHED ⓘ |
| locatedNear | Marseilles, Illinois ⓘ |
| locatedOnWaterway | Illinois River ⓘ |
| lockChamberLength | 600 feet ⓘ |
| lockChamberWidth | 110 feet ⓘ |
| maintenanceResponsibility |
U.S. Army Corps of Engineers
ⓘ
surface form:
United States Army Corps of Engineers
|
| navigationPool | Marseilles Pool ⓘ |
| navigationSeason | year-round, subject to river conditions ⓘ |
| navigationSystem |
Upper Mississippi River–Illinois Waterway navigation system
ⓘ
surface form:
Mississippi River inland waterway system
|
| nearbyCity |
Marseille
ⓘ
surface form:
Marseilles
|
| numberOfDamGates | multiple tainter gates ⓘ |
| numberOfLocks | 1 ⓘ |
| operator |
U.S. Army Corps of Engineers
ⓘ
surface form:
United States Army Corps of Engineers
|
| owner | United States government ⓘ |
| partOf |
Illinois Waterway system
ⓘ
surface form:
Illinois Waterway
|
| primaryTraffic | commercial barge traffic ⓘ |
| purpose |
flood control
ⓘ
navigation ⓘ |
| regionServed | northern Illinois ⓘ |
| riverMileOnIllinoisRiver | approximately 247 ⓘ |
| safetyFunction | helps reduce flood risk along the Illinois River ⓘ |
| state | Illinois ⓘ |
| structureType | concrete dam with gated spillway ⓘ |
| supports |
Midwestern agricultural exports
ⓘ
bulk commodity transport ⓘ |
| supportsActivity | commercial navigation on the Illinois Waterway ⓘ |
| supportsIndustry | inland barge industry ⓘ |
| systemRole |
helps manage river stages during high flows
ⓘ
maintains a navigable channel on the Illinois River ⓘ |
| USACEDistrict | Rock Island District ⓘ |
| watercourse | Illinois River ⓘ |
| waterwaySystem |
Illinois Waterway system
ⓘ
surface form:
Illinois Waterway
|
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: Marseilles Lock and Dam Description of subject: Marseilles Lock and Dam is a navigation and flood-control structure on the Illinois River that helps regulate water levels and vessel traffic as part of the Illinois Waterway.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.