Rideau Canal locks
E678154
The Rideau Canal locks at Merrickville are a historic series of manually operated canal locks that form part of the UNESCO-listed Rideau Canal waterway in Ontario, Canada.
All labels observed (6)
| Label | Occurrences |
|---|---|
| Rideau Canal locks canonical | 2 |
| Rideau Canal locks at Ottawa | 2 |
| Locks on the Rideau Canal | 1 |
| Rideau Canal locks system | 1 |
| Rideau Canal lockstation at Merrickville | 1 |
| Rideau Canal lockstations in Ontario | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7626721 — 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: Rideau Canal locks Context triple: [Merrickville, knownFor, Rideau Canal locks]
-
A.
Smiths Falls Locks
Smiths Falls Locks are a historic set of canal locks in Smiths Falls, Ontario, that form a key part of the Rideau Canal’s navigation and heritage infrastructure.
-
B.
Rideau Canal
The Rideau Canal is a historic waterway in Ontario and Quebec, Canada, renowned as a UNESCO World Heritage Site and one of the oldest continuously operated canals in North America.
-
C.
Lachine Canal
The Lachine Canal is a historic industrial waterway in Montreal, Canada, that once bypassed the Lachine Rapids to facilitate shipping and now serves as a popular recreational corridor.
-
D.
Ballard Locks
Ballard Locks, officially known as the Hiram M. Chittenden Locks, is a major lock system in Seattle that manages boat traffic and water levels between the freshwater lakes and the saltwater Puget Sound.
-
E.
Jones Falls Locks
Jones Falls Locks is a historic flight of canal locks on the Rideau Canal in Ontario, Canada, known for its impressive 19th-century engineering and scenic setting.
- 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: Rideau Canal locks Target entity description: The Rideau Canal locks at Merrickville are a historic series of manually operated canal locks that form part of the UNESCO-listed Rideau Canal waterway in Ontario, Canada.
-
A.
Smiths Falls Locks
Smiths Falls Locks are a historic set of canal locks in Smiths Falls, Ontario, that form a key part of the Rideau Canal’s navigation and heritage infrastructure.
-
B.
Rideau Canal
The Rideau Canal is a historic waterway in Ontario and Quebec, Canada, renowned as a UNESCO World Heritage Site and one of the oldest continuously operated canals in North America.
-
C.
Lachine Canal
The Lachine Canal is a historic industrial waterway in Montreal, Canada, that once bypassed the Lachine Rapids to facilitate shipping and now serves as a popular recreational corridor.
-
D.
Ballard Locks
Ballard Locks, officially known as the Hiram M. Chittenden Locks, is a major lock system in Seattle that manages boat traffic and water levels between the freshwater lakes and the saltwater Puget Sound.
-
E.
Jones Falls Locks
Jones Falls Locks is a historic flight of canal locks on the Rideau Canal in Ontario, Canada, known for its impressive 19th-century engineering and scenic setting.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
canal lock station
ⓘ
historic site ⓘ |
| connects |
sections of the Rideau River
ⓘ
upstream and downstream water levels at Merrickville ⓘ |
| constructionStartDate | 1827 ⓘ |
| country | Canada ⓘ |
| currentUse | civilian navigation ⓘ |
| designedFor | military supply route (originally) ⓘ |
| era | 19th century ⓘ |
| hasAdjacentCommunity |
Village of Merrickville
ⓘ
linked to:
Township of Merrickville–Wolford
|
| hasFeature |
hand-operated winches
ⓘ
manual wooden lock gates ⓘ stone lock chambers ⓘ |
| hasNearbyStructure |
Merrickville Blockhouse
ⓘ
stone lockstation buildings ⓘ |
| heritageDesignation |
National Historic Site of Canada
ⓘ
UNESCO World Heritage Site component ⓘ |
| heritageStatus | protected under Canadian federal heritage legislation ⓘ |
| inception | 1820s ⓘ |
| locatedIn |
Canada
ⓘ
Merrickville–Wolford ⓘ Ontario ⓘ |
| locatedInProtectedArea |
Rideau Canal National Historic Site
ⓘ
linked to:
Rideau Canal
|
| locatedNear | Merrickville ⓘ |
| locatedOnRiver | Rideau River ⓘ |
| lockType | manual lock ⓘ |
| managedBy | Parks Canada ⓘ |
| material |
stone
ⓘ
timber gates ⓘ |
| mechanism | manually operated ⓘ |
| numberOfLocks | 3 ⓘ |
| openingDate | 1832 ⓘ |
| openToPublic | yes ⓘ |
| operatedBy | Parks Canada ⓘ |
| partOf |
Ottawa–Kingston waterway route
ⓘ
Rideau Canal ⓘ Rideau Canal World Heritage Site ⓘ
linked to:
Rideau Canal
Rideau Canal lock system ⓘ
linked to:
Rideau Canal
historic Rideau Canal corridor ⓘ |
| province | Ontario ⓘ |
| region | Eastern Ontario ⓘ |
| seasonalOperation | summer navigation season ⓘ |
| touristAttraction | yes ⓘ |
| UNESCOWorldHeritageSiteSince | 2007 ⓘ |
| usedFor |
heritage tourism
ⓘ
navigation ⓘ recreational boating ⓘ |
| waterway | Rideau Canal ⓘ |
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: Rideau Canal locks Description of subject: The Rideau Canal locks at Merrickville are a historic series of manually operated canal locks that form part of the UNESCO-listed Rideau Canal waterway in Ontario, Canada.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Rideau Canal locks
linked to: Rideau Canal locks
linked to: Rideau Canal locks
linked to: Rideau Canal locks
linked to: Rideau Canal locks