National Reservoir Flood Extents for Dry Day Failure Scenarios

Flood extents for all large raised reservoirs in Great Britain, modeling a worst-case failure scenario on a 'dry day' with normal river levels. The data, produced by the Environment Agency, represents a credible but unlikely maximum flood prediction and excludes smaller reservoirs and those commissioned after October 2016.

Use Cases

• Model flood risk assessment for infrastructure planning using the predicted flood extents.
• Analyze spatial patterns of potential flooding from large raised reservoirs for emergency preparedness.
• Integrate the flood extent polygons with other geospatial layers for environmental impact studies.

Strengths

• Covers all large raised reservoirs across Great Britain, providing national scope.
• Models a credible worst-case scenario based on reservoir failure on a 'dry day'.
• Maintained by the Environment Agency, a national authoritative body.

Limitations

• Excludes smaller reservoirs and those commissioned after the modeling program began in October 2016.
• Provides no data on the probability or likelihood of an actual reservoir flood event.
• The modeled extents represent an unlikely maximum scenario, not a probable flood.

Provenance

Source

Environment Agency

Collection Method

Modeling program for reservoir flood extents, initiated in October 2016.

Time Range

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Freshness

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Geography

Great Britain (National)