Flood management and planning constraints
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
© Crown copyright and database rights 2024 AC0000851087 2024
Historic Flood Map
2024-09-11T00:00:00
Environment Agency
Environment Agency
DSPcustomerforum@environment-agency.gov.uk
Oxfordshire County Council
Historic Flood Map
Recorded Flood Outlines
flooding
environment
inlandWaters
flooding
flood
Open Government Licence, Crown copyright and database rights 2024 OS AC0000851087
Environment Agency
Version 6.2 (Build 9200) ; Esri ArcGIS 10.9.1.28388
1
-1.843002
-0.704124
52.226624
51.366912
GIS Data Team
Oxfordshire County Council
GISData@oxfordshire.gov.uk
Flood outlines are digitised in ArcGIS from a number of sources including surveyed flood events
EA_Historic_Flood_Map
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