Indicative Flood Risk Areas (shapefiles)

Published by:
Environment Agency
Last updated:
06 November 2023
Topic:
Not added
Licence:
Other Licence
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Summary

Set of shapefiles defining Indicative Flood Risk Areas for local risk. Indicative Flood Risk Areas are provided by the Environment Agency for use by Lead Local Flood Authorities in England in their review during 2017 of Preliminary Flood Risk Assessments and Flood Risk Areas under the Flood Risk Regulations.

The Indicative Flood Risk Areas are primarily based on an aggregated 1km square grid Updated Flood Map for Surface Water (1 in 100 and 1000 annual probability rainfall), informally referred to as the “blue square map”. These are 1km grids across England and consist of the following data layers:

• Surface Water Flood Risk Exposure Grid – 1km square grid that shows places above the flood risk threshold defined, using the 1 in 100 and 1000 annual probability (deep) Flood Map for Surface Water. • Flood risk thresholds used to generate the “blue Squares”: - Number of people > 200 - Number of critical services, including electricity and water > 1 - Number of non-residential properties > 20 • Cluster Maps – are aggregations of 3km by 3km squares that each contain at least 5 touching "blue squares" (i.e. 1km grid squares where one of the thresholds above is exceeded) • Communities at Risk by Lead Local Flooding Authority • People Sensitivity Map by Lead Local Flood Authority. Attribution statement: © Environment Agency copyright and/or database right 2016. All rights reserved. Contains public sector information licensed under the Open Government Licence

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Link to the data Format File added Data preview
IndicativeFloodRiskAreas-SHP.zip ZIP 06 November 2023 Not available

Additional information

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Added to data.gov.uk
2023-11-06
Access contraints
There are no public access constraints to this data. Use of this data is subject to the licence identified.
Harvest GUID
6a41cbab-6d8a-4af6-a622-bc0f6dcd8372
Extent
Latitude: 55.816° to 49.943°
Longitude: -6.236° to 2.072°
Spatial reference system
http://www.opengis.net/def/crs/EPSG/0/27700
Dataset reference date
2017-01-20 (creation)
2017-01-20 (revision)
Frequency of update
asNeeded
Responsible party
Environment Agency (pointOfContact)
ISO 19139 resource type
dataset
Metadata language
eng
Source Metadata
XML
HTML

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Licence information

Open Government Licence