Historic Flood Map
The Historic Flood Map is a GIS layer showing the maximum extent of individual Recorded Flood Outlines from river, the sea and groundwater springs that meet a set criteria. It shows areas of land that have previously been subject to flooding in England. This excludes flooding from surface water, except in areas where it is impossible to determine whether the source is fluvial or surface water but the dominant source is fluvial. The majority of records began in 1946 when predecessor bodies to the Environment Agency started collecting detailed information about flooding incidents, although we hold limited details about flooding incidents prior to this date. If an area is not covered by the Historic Flood Map it does not mean that the area has never flooded, only that we do not currently have records of flooding in this area that meet the criteria for inclusion. It is also possible that the pattern of flooding in this area has changed and that this area would now flood or not flood under different circumstances. Outlines that don’t meet this criteria are stored in the Recorded Flood Outlines dataset. The Historic Flood Map takes into account the presence of defences, structures, and other infrastructure where they existed at the time of flooding. It will include flood extents that may have been affected by overtopping, breaches or blockages. Flooding is shown to the land and does not necessarily indicate that properties were flooded internally. Attribution statement: © Environment Agency copyright and/or database right 2023. All rights reserved
dataset
protocol: http
name: Data Version.txt
description: Data Version.txt download on Defra Data Services Platform
protocol: http
name: Guidance_Historic Flood Map_v6_1.pdf
description: Guidance_Historic Flood Map_v6_1.pdf download on Defra Data Services Platform
protocol: http
name: HISTORIC_FLOOD_MAP.lyr
description: HISTORIC_FLOOD_MAP.lyr download on Defra Data Services Platform
https://environment.data.gov.uk/explore/889885c0-d465-11e4-9507-f0def148f590?download=true
protocol: http
name: HistoricFloodMap_Download
description: Download data by area of interest
https://environment.data.gov.uk/spatialdata/historic-flood-map/wms
protocol: http
name: HistoricFloodMap_WMS
description: Historic Flood Map - WMS
https://environment.data.gov.uk/spatialdata/historic-flood-map/wfs
protocol: http
name: HistoricFloodMap_WFS
description: Historic Flood Map - WFS
https://environment.data.gov.uk/spatialdata/historic-flood-map/ogc/features/v1
protocol: http
name: OGC API - Features service
description: OGC API - Features service
DSTR03169
eng
http://www.opengis.net/def/crs/EPSG/0/27700
environment
imageryBaseMapsEarthCover
inlandWaters
Historic Flood Map
Recorded Flood Outlines
flooding
environment
imageryBaseMapsEarthCover
inlandWaters
flooding
publication
2010-01-13
flood
publication
2010-01-13
-6.236
2.072
55.816
49.943
1946-01-01
2099-12-31
creation
2004-01-01
revision
2025-02-06
quarterly
Flood outlines are digitised in ArcGIS from a number of sources including surveyed flood events
Open format | Shapefile (SHP)
Not Applicable
Open Government 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 licence identified.
Environment Agency
DSPcustomerforum@environment-agency.gov.uk
https://environment.data.gov.uk/support
description: Defra Data Services Forum
pointOfContact
Environment Agency
DSPcustomerforum@environment-agency.gov.uk
pointOfContact
2025-02-13