Toddbrook Reservoir
E758556
Toddbrook Reservoir is a man-made lake in Derbyshire, England, known for supplying water to the Peak Forest Canal and for the 2019 dam safety crisis that led to the evacuation of nearby Whaley Bridge.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Toddbrook Reservoir canonical | 3 |
| Toddbrook Reservoir dam spillway | 1 |
| Toddbrook Reservoir dam wall | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8781770 — 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: Toddbrook Reservoir Context triple: [Whaley Bridge, hasStructure, Toddbrook Reservoir]
-
A.
Gouthwaite Reservoir
Gouthwaite Reservoir is a large man-made lake in Nidderdale, North Yorkshire, England, known for its role in water supply, flood control, and as a wildlife-rich nature reserve.
-
B.
Tittesworth Reservoir
Tittesworth Reservoir is a scenic water reservoir and nature spot in Staffordshire, England, popular for walking, wildlife watching, and outdoor recreation.
-
C.
Woodhead Reservoir
Woodhead Reservoir is a major man-made lake in the Longdendale Valley in northern England, built to supply water and help regulate flows along the River Etherow.
-
D.
Bethany Reservoir
Bethany Reservoir is a man-made water storage facility in California that serves as a key forebay and regulating reservoir for the State Water Project’s South Bay Aqueduct.
-
E.
Greenbooth Reservoir
Greenbooth Reservoir is a man-made lake near Norden in Greater Manchester, England, known for its scenic walking routes and surrounding moorland landscapes.
- 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: Toddbrook Reservoir Target entity description: Toddbrook Reservoir is a man-made lake in Derbyshire, England, known for supplying water to the Peak Forest Canal and for the 2019 dam safety crisis that led to the evacuation of nearby Whaley Bridge.
-
A.
Gouthwaite Reservoir
Gouthwaite Reservoir is a large man-made lake in Nidderdale, North Yorkshire, England, known for its role in water supply, flood control, and as a wildlife-rich nature reserve.
-
B.
Tittesworth Reservoir
Tittesworth Reservoir is a scenic water reservoir and nature spot in Staffordshire, England, popular for walking, wildlife watching, and outdoor recreation.
-
C.
Woodhead Reservoir
Woodhead Reservoir is a major man-made lake in the Longdendale Valley in northern England, built to supply water and help regulate flows along the River Etherow.
-
D.
Bethany Reservoir
Bethany Reservoir is a man-made water storage facility in California that serves as a key forebay and regulating reservoir for the State Water Project’s South Bay Aqueduct.
-
E.
Greenbooth Reservoir
Greenbooth Reservoir is a man-made lake near Norden in Greater Manchester, England, known for its scenic walking routes and surrounding moorland landscapes.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf | reservoir ⓘ |
| basinCountry | United Kingdom ⓘ |
| causeOfEvent | damage to concrete spillway after heavy rainfall ⓘ |
| constructedFor | Peak Forest Canal ⓘ |
| constructionStartDate | 1837 ⓘ |
| country | England ⓘ |
| dateOfEvent |
August 2019
ⓘ
July 2019 ⓘ |
| emergencyResponse |
RAF Chinook helicopters dropped aggregate onto dam spillway in 2019
ⓘ
fire service pumped water out of reservoir in 2019 ⓘ |
| experienced | partial spillway failure in 2019 ⓘ |
| hasCapacity |
approximately 1.3 million cubic metres
ⓘ
approximately 300 million imperial gallons ⓘ |
| hasDamType | earthfill dam ⓘ |
| hasEvent | 2019 dam safety crisis ⓘ |
| hasOutflow | River Goyt ⓘ |
| hasRecreationFacility | Toddbrook Sailing Club ⓘ |
| hasSpillwayType | concrete auxiliary spillway ⓘ |
| hasStatus | temporarily drained after 2019 incident ⓘ |
| hasSurfaceArea |
approximately 0.2 square kilometres
ⓘ
approximately 50 acres ⓘ |
| inception | 1838 ⓘ |
| ledTo | evacuation of Whaley Bridge in 2019 ⓘ |
| locatedIn |
Derbyshire
ⓘ
High Peak ⓘ Peak District ⓘ Whaley Bridge ⓘ |
| locatedOnWatercourse | Toddbrook ⓘ |
| managedBy | Canal & River Trust ⓘ |
| near |
Goyt Valley
ⓘ
River Goyt ⓘ |
| nearbySettlement |
Chapel-en-le-Frith
ⓘ
Whaley Bridge ⓘ |
| opened | 1838 ⓘ |
| ownedBy | Canal & River Trust ⓘ |
| partOf |
Peak Forest Canal water supply system
ⓘ
linked to:
Peak Forest Canal
|
| purpose | water supply ⓘ |
| regulator |
Environment Agency
ⓘ
linked to:
Environment Agency (England)
|
| risk | potential dam collapse in 2019 ⓘ |
| significantEvent |
2019 Whaley Bridge evacuation
ⓘ
2019 dam safety crisis ⓘ |
| subjectTo | UK Reservoirs Act safety regulations ⓘ |
| suppliesWaterTo | Peak Forest Canal ⓘ |
| underwent | major repair and reconstruction works after 2019 ⓘ |
| usedFor |
recreational fishing
ⓘ
sailing ⓘ walking ⓘ |
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: Toddbrook Reservoir Description of subject: Toddbrook Reservoir is a man-made lake in Derbyshire, England, known for supplying water to the Peak Forest Canal and for the 2019 dam safety crisis that led to the evacuation of nearby Whaley Bridge.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Toddbrook Reservoir
linked to: Toddbrook Reservoir