Hollandse IJssel storm surge barrier
E467565
The Hollandse IJssel storm surge barrier is a major Dutch flood defense structure near Krimpen aan den IJssel that protects the low-lying Randstad region from high water levels during North Sea storms.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Hollandse IJssel storm surge barrier canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4754095 — 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: Hollandse IJssel storm surge barrier Context triple: [Stormvloedkering Hollandse IJssel, alsoKnownAs, Hollandse IJssel storm surge barrier]
-
A.
Oosterscheldekering storm surge barrier
The Oosterscheldekering storm surge barrier is a massive movable flood defense structure in the Netherlands, renowned as the largest and most complex component of the Delta Works coastal protection system.
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B.
Maeslantkering movable storm surge barrier
The Maeslantkering movable storm surge barrier is a massive, computer-controlled flood defense structure near Rotterdam that protects the Netherlands from North Sea storm surges as part of the Delta Works system.
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C.
Afsluitdijk
The Afsluitdijk is a major Dutch causeway and dam that closed off the Zuiderzee from the North Sea, creating the IJsselmeer and serving as a key flood defense and transport link.
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D.
Houtribdijk
Houtribdijk is a major Dutch dam and causeway that connects Lelystad and Enkhuizen, playing a key role in land reclamation and water management in the IJsselmeer region.
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E.
MOSE flood barrier system
The MOSE flood barrier system is a large-scale engineering project of movable gates designed to protect Venice and its lagoon from high tides and flooding.
- 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: Hollandse IJssel storm surge barrier Target entity description: The Hollandse IJssel storm surge barrier is a major Dutch flood defense structure near Krimpen aan den IJssel that protects the low-lying Randstad region from high water levels during North Sea storms.
-
A.
Oosterscheldekering storm surge barrier
The Oosterscheldekering storm surge barrier is a massive movable flood defense structure in the Netherlands, renowned as the largest and most complex component of the Delta Works coastal protection system.
-
B.
Maeslantkering movable storm surge barrier
The Maeslantkering movable storm surge barrier is a massive, computer-controlled flood defense structure near Rotterdam that protects the Netherlands from North Sea storm surges as part of the Delta Works system.
-
C.
Afsluitdijk
The Afsluitdijk is a major Dutch causeway and dam that closed off the Zuiderzee from the North Sea, creating the IJsselmeer and serving as a key flood defense and transport link.
-
D.
Houtribdijk
Houtribdijk is a major Dutch dam and causeway that connects Lelystad and Enkhuizen, playing a key role in land reclamation and water management in the IJsselmeer region.
-
E.
MOSE flood barrier system
The MOSE flood barrier system is a large-scale engineering project of movable gates designed to protect Venice and its lagoon from high tides and flooding.
- F. None of above. chosen
Statements (39)
| Predicate | Object |
|---|---|
| instanceOf |
flood defense structure
ⓘ
storm surge barrier ⓘ |
| constructionStart | 1958 ⓘ |
| controlledFrom | local control center ⓘ |
| country | Netherlands ⓘ |
| designedAfterEvent | North Sea flood of 1953 NERFINISHED ⓘ |
| designedFor | partial closure of the river ⓘ |
| designedToOperate | during North Sea storms ⓘ |
| designedToWithstand | North Sea storm surges ⓘ |
| engineeringDiscipline | hydraulic engineering ⓘ |
| function |
can be closed during high water levels
ⓘ
keeps tidal influence out of protected area when closed ⓘ |
| hasAlternativeName | Stormvloedkering Hollandse IJssel NERFINISHED ⓘ |
| hasComponent |
concrete piers
ⓘ
control building ⓘ two movable gates ⓘ |
| hasStatus | nationally important water management structure ⓘ |
| inaugurationDate | 1958 ⓘ |
| languageOfName | Dutch ⓘ |
| locatedIn | Hollandse IJssel NERFINISHED ⓘ |
| locatedInCountry | Netherlands NERFINISHED ⓘ |
| locatedInEstuarySystem | Rhine–Meuse–Scheldt delta NERFINISHED ⓘ |
| locatedInRegion | South Holland NERFINISHED ⓘ |
| locatedNear |
Capelle aan den IJssel
NERFINISHED
ⓘ
Krimpen aan den IJssel NERFINISHED ⓘ Rotterdam NERFINISHED ⓘ |
| material |
reinforced concrete
ⓘ
steel ⓘ |
| operatedBy | Rijkswaterstaat NERFINISHED ⓘ |
| partOf | Delta Works NERFINISHED ⓘ |
| protects |
Krimpenerwaard polder area
NERFINISHED
ⓘ
Rotterdam region NERFINISHED ⓘ |
| protectsArea | low-lying areas of the Randstad ⓘ |
| protectsRegion | Randstad NERFINISHED ⓘ |
| purpose |
flood protection
ⓘ
protection against storm surges ⓘ |
| significance |
first major structure of the Delta Works to be completed
ⓘ
key element in Dutch coastal defense system ⓘ |
| watercourseControlled | Hollandse IJssel 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: Hollandse IJssel storm surge barrier Description of subject: The Hollandse IJssel storm surge barrier is a major Dutch flood defense structure near Krimpen aan den IJssel that protects the low-lying Randstad region from high water levels during North Sea storms.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.