2019 Toddbrook Reservoir emergency
E756768
The 2019 Toddbrook Reservoir emergency was a major dam safety crisis in Derbyshire, England, that led to the evacuation of thousands of residents from the nearby town of Whaley Bridge due to fears of catastrophic flooding.
All labels observed (1)
| Label | Occurrences |
|---|---|
| 2019 Toddbrook Reservoir emergency canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8781800 — 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: 2019 Toddbrook Reservoir emergency Context triple: [Whaley Bridge, notableEvent, 2019 Toddbrook Reservoir emergency]
-
A.
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.
-
B.
Green Lane Reservoir
Green Lane Reservoir is a man-made lake in Montgomery County, Pennsylvania, known for recreation, water supply, and wildlife habitat.
-
C.
East Park Reservoir
East Park Reservoir is a man-made lake in northern California used primarily for irrigation water storage and recreation.
-
D.
Watergrove Reservoir
Watergrove Reservoir is a man-made lake in Greater Manchester, England, known for supplying water to the region and for the remains of the submerged village of Watergrove visible at low water levels.
-
E.
Millbrook Reservoir
Millbrook Reservoir is a major water storage facility in South Australia that supplies drinking water to Adelaide and surrounding areas.
- 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: 2019 Toddbrook Reservoir emergency Target entity description: The 2019 Toddbrook Reservoir emergency was a major dam safety crisis in Derbyshire, England, that led to the evacuation of thousands of residents from the nearby town of Whaley Bridge due to fears of catastrophic flooding.
-
A.
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.
-
B.
Green Lane Reservoir
Green Lane Reservoir is a man-made lake in Montgomery County, Pennsylvania, known for recreation, water supply, and wildlife habitat.
-
C.
East Park Reservoir
East Park Reservoir is a man-made lake in northern California used primarily for irrigation water storage and recreation.
-
D.
Watergrove Reservoir
Watergrove Reservoir is a man-made lake in Greater Manchester, England, known for supplying water to the region and for the remains of the submerged village of Watergrove visible at low water levels.
-
E.
Millbrook Reservoir
Millbrook Reservoir is a major water storage facility in South Australia that supplies drinking water to Adelaide and surrounding areas.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
civil emergency
ⓘ
dam safety emergency ⓘ flood risk incident ⓘ |
| appliesToJurisdiction | England and Wales reservoir safety regime ⓘ |
| country | United Kingdom ⓘ |
| emergencyResponseAction |
placement of sandbags on dam spillway
ⓘ
pumping water out of Toddbrook Reservoir ⓘ use of RAF helicopters to drop aggregate onto dam ⓘ |
| followedBy | repair and reconstruction works at Toddbrook Reservoir ⓘ |
| hasAftermath |
assessment of spillway design and construction
ⓘ
recommendations for improvements to UK reservoir safety guidance ⓘ |
| hasCause | damage to spillway of Toddbrook Reservoir dam ⓘ |
| hasConsequence |
long-term closure of Toddbrook Reservoir for repairs
ⓘ
temporary displacement of Whaley Bridge residents ⓘ |
| hasEffect |
evacuation of residents from Whaley Bridge
ⓘ
risk of catastrophic flooding in Whaley Bridge ⓘ |
| hasEmergencyAlertLevel | severe flood warning ⓘ |
| hasMediaCoverage |
BBC News
ⓘ
linked to:
BBC World News
ITV News ⓘ The Guardian ⓘ |
| hasParticipant |
local authorities in High Peak
ⓘ
residents of Whaley Bridge ⓘ volunteer emergency services ⓘ |
| hasRisk |
major flooding downstream on River Goyt
ⓘ
potential collapse of Toddbrook Reservoir dam ⓘ |
| involves |
Toddbrook Reservoir dam spillway
ⓘ
linked to:
Toddbrook Reservoir
Whaley Bridge town centre ⓘ |
| ledTo |
public inquiry into dam safety
ⓘ
review of reservoir safety regulations in England ⓘ |
| locatedInAdministrativeTerritorialEntity | High Peak ⓘ |
| location |
Derbyshire
ⓘ
England ⓘ Toddbrook Reservoir ⓘ Whaley Bridge ⓘ |
| mainSubject | structural integrity of Toddbrook Reservoir dam ⓘ |
| managedBy |
Derbyshire Constabulary
ⓘ
Derbyshire Fire and Rescue Service ⓘ Environment Agency ⓘ
linked to:
Environment Agency (England)
Royal Air Force ⓘ |
| nearbyWatercourse | River Goyt ⓘ |
| numberOfEvacuatedPeople | approximately 1500 ⓘ |
| partOf | history of dam safety incidents in the United Kingdom ⓘ |
| pointInTime | August 2019 ⓘ |
| significantPlace |
Toddbrook Reservoir dam wall
ⓘ
linked to:
Toddbrook Reservoir
Whaley Bridge railway station ⓘ |
| startTime | 2019-08-01 ⓘ |
| uses | military helicopters for dam stabilisation ⓘ |
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: 2019 Toddbrook Reservoir emergency Description of subject: The 2019 Toddbrook Reservoir emergency was a major dam safety crisis in Derbyshire, England, that led to the evacuation of thousands of residents from the nearby town of Whaley Bridge due to fears of catastrophic flooding.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.