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dataset · England

AIMS Spatial Flood Defences (inc. standardised attributes)

This record is for Approval for Access product AfA345. The Environment Agency's (EA) Spatial Flood defences layer is the only comprehensive and up-to-date dataset in England that shows flood defences currently owned, managed or inspected by the EA. Flood defences can be structures, buildings or parts of buildings. Typically these are earth banks, stone and concrete walls, or sheet-piling that is used to prevent or control the extent of flooding. A defence is any asset that provides flood defence

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Source details

Licence: ["There are no public access constraints to this data. Use of this data is subject to the licence identified.", "There are no public access constraints to this data. Use of this data is subject to the

Evidence quality: 70

Listed in data.gov.uk public catalogue API on 2026-10-16; relevance/value screened (haiku).

Metadata checked: 2026-10-14T13:20:00.000Z

What's in it

Data offered docs-verified
flood defence assets owned, managed or inspected by the EA · standardised attributes
Coverage docs-verified
England
Update frequency docs-verified
daily
Formats docs-verified
Shapefile (SHP, zipped) · GeoPackage (GPKG, zipped) · GeoJSON (zipped) · File Geodatabase (GDB, zipped) · OGC API - Features · WFS · WMS
Access docs-verified
Free/open: no public access constraints; Open Government Licence v3.0

Useful for

Use cases llm-inferred
FRA baseline: locate EA-owned or managed defences relative to a site · Hydraulic model checks: confirm defence positions against model boundaries and crest lines · Planning constraints mapping: identify nearby flood defence assets for development screening
Audience llm-inferred
flood consultants · hydrologists · GIS analysts · planners

Limitations

Constraints llm-inferred
Covers only defences currently owned, managed or inspected by the EA, not all flood defences in England · Record is for Approval for Access product AfA345 · National download is large and may take 7-8 minutes depending on format

Evidence

Check upstream coverage, uncertainty and licence before use. Station observations are not forecasts or design levels.