Flood management and planning constraints
This record is for Approval for Access product AfA055. Flood Alert Areas are geographical areas where it is possible for flooding of low-lying land and roads to occur from rivers, sea and in some locations groundwater. A single Flood Alert Area may cover the floodplain within the Flood Warning Service Limit of multiple catchments of similar characteristics. A Flood Alert Area may contain one or more Flood Warning Areas. In some coastal locations a Flood Alert may be issued for spray or overtopping and be defined by a stretch of coastline. A Flood Alert is issued to warn people of the possibility of flooding and encourage them to be alert, stay vigilant and make early / low impact preparations for flooding. Flood Alerts are issued earlier than Flood Warnings to provide advance notice of the possibility of flooding and may be issued when there is less confidence that flooding will occur in a Food Warning Area. Flood Warnings Areas (established to apply to discrete communities) are available in AfA054. INFORMATION WARNING: The groundwater flood alert areas are either at a community/local scale, or where this is not possible are more generalised and based on other factors, such as geology and counties. In general, specialists used the national groundwater dataset to make a comparison with historical maps and bedrock geology to create the groundwater flood alert areas. Additional data sources, including groundwater susceptibility maps, borehole data, local modelling and LiDAR may also have been used depending on the location of the area. Flood Alert Areas can be created, amended, or deleted at certain times in the year. This dataset was last updated on: June 5th 2024 The scheduled updates where changes may be introduced are: 21st February 2024 22nd May 2024 - Due to the ongoing flooding, this has been postponed until June 5th 14th August 2024 and 20th November 2024 Please note that these dates may change at short notice if there are system issues or a large-scale flood event. Attribution statement: © Environment Agency copyright and/or database right 2024. All rights reserved.
© Crown copyright and database rights 2024 AC0000851087 2024
Flood Alert Areas
2024-09-11T00:00:00
Environment Agency
Environment Agency
DSPcustomerforum@environment-agency.gov.uk
Oxfordshire County Council
Environment Agency
Flood
Flood Alerts
environment
inlandWaters
flooding
safety measure
Open Government Licence, Crown copyright and database rights 2024 OS AC0000851087
Environment Agency
Esri ArcGIS 12.9.7.32739
1
-1.862971
-0.703216
52.258425
51.366917
GIS Data Team
Oxfordshire County Council
GISData@oxfordshire.gov.uk
Greatest extent of flooding defined using Flood Zone which in turn is used to delineate the Flood Warning Service Limit which is then subdivided into Flood Alert Areas.
EA_FLOOD_ALERT_AREAS
409536.908400
488515.015800
163917.703000
262303.875200
1
Projected
GCS_OSGB_1936
Linear Unit: Meter (1.000000)
British_National_Grid
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13484100
20240911
13484100
Enterprise Geodatabase Feature Class
dataset
EPSG
6.3(3.0.1)
54
Simple
FALSE
54
TRUE
FALSE
EA_FLOOD_ALERT_AREAS
Feature Class
54
OBJECTID
OBJECTID
OID
4
10
0
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
DBO.EA_FLOOD_ALERT_AREAS.area
DBO.EA_FLOOD_ALERT_AREAS.area
String
100
0
0
fws_tacode
fws_tacode
String
50
0
0
ta_name
ta_name
String
100
0
0
descrip
descrip
String
254
0
0
la_name
la_name
String
254
0
0
qdial
qdial
String
50
0
0
river_sea
river_sea
String
254
0
0
st_area_sh
st_area_sh
Double
8
38
8
st_perimet
st_perimet
Double
8
38
8
Shape
Shape
Geometry
8
0
0
Feature geometry.
Esri
Coordinates defining the features.
Shape.STArea()
Shape.STArea()
Double
0
0
0
Shape.STLength()
Shape.STLength()
Double
0
0
0
20240911