Rivers and Sea 3.3% defended flood risk extents - present day
Summary
This dataset shows the extent of land at risk of flooding to a defined annual exceedance probability (AEP) or chance of flooding each year.
This dataset represents the following scenario:
● Defended: 3.3% AEP (1 in 30) Rivers/Sea
Defended products take into account the presence of flood defences and assume that they operate in the way they were intended (or designed) to function. This does not include any asset failure (or removal) scenarios.
This dataset is designed to only give an indication of flood risk to an area of land and are not suitable for showing whether an individual property is at risk of flooding. This is because we cannot know all the details about each property.
Information on flood depth, speed or volume of flow is not included.
Users of these datasets should always check they are suitable for the intended use.
Categories
Keywords
Use limitation statement
There are no public access constraints to this data. Use of this data is subject to the licence identified.
Licence
Open Government LicenceAttribution statement
© Environment Agency copyright and/or database right 2025. All rights reserved.
Technical information
- Update frequency
quarterly
- Lineage
- These flood outlines are created using local flood model outputs and national flood model information. These are combined by our new National Flood Risk Assessment (NaFRA2) system to generate extents of land at flood risk, with the aim of using the best available flood risk information in any one location.
Spatial information
Coordinate reference system
http://www.opengis.net/def/crs/EPSG/0/27700Geographic extent
- Latitude from: 49.943 to 55.816
- Longitude from: -6.236 to 2.072
Metadata information
Language
English
Metadata identifier
56fb30ae-f20d-490a-9149-a94f3e640261
Data and Supporting Information
| Data services and download by area of interest | Link | Action |
|---|---|---|
| Download data by area of interest and format | N/A | Open link |
| Rivers And Sea 1in30 Defended Flood Risk Extents Present Day - WMS | Copy link | Preview |
| Rivers And Sea 1in30 Defended Flood Risk Extents Present Day - WFS | Copy link | N/A |
| OGC API - Features service | Copy link | Open link |
| Full downloads and supporting documentation | Format | Action |
|---|---|---|
| Rivers and Sea Defended and Undefended Product Description.pdf | Download | |
| Rivers_1in30_Sea_1in30_defended_extents.lyr | LYR | Download |
| Rivers_and_Sea_3_3_defended_flood_risk_extents_present_day.gdb.zip | ZIP | Download |
| Rivers_and_Sea_3_3_defended_flood_risk_extents_present_day.geojson.zip | ZIP | Download |
| Rivers_and_Sea_3_3_defended_flood_risk_extents_present_day.gpkg.zip | ZIP | Download |
| Rivers_and_Sea_3_3_defended_flood_risk_extents_present_day.shp.zip | ZIP | Download |