These maps show the areas at risk from flooding (rivers). The data can be used to assess expected flood levels and includes the modelled increase due to climate change.
Risk of Flooding from Rivers and the Sea (RoFRS) shows the chance of flooding from rivers and the sea taking into account the presence and condition of flood defences. It is our main way of communicating flood risk from rivers and sea to the public through our ‘Check Your Long Term Flood Risk’ service on gov.uk. While flood defences reduce the level of risk they do not completely remove it. For example, water can flow over the top of the defence, or they can fail in extreme weather conditions or if they are in poor condition. As a result, the RoFRS maps may show that there is risk to areas behind some flood defences. RoFRS is a probabilistic product, meaning that it shows the overall risk, rather than the risk associated with a specific event or scenario. This risk is displayed as one of four likelihood bandings: High - greater than or equal to 3.3% chance in any given year (1 in 30) Medium - less than 3.3% (1 in 30) but greater than or equal to 1% (1 in 100) chance in any given year Low - less than 1% (1 in 100) but greater than or equal to 0.1% (1 in 1,000) chance in any given year Very Low - less than 0.1% chance in any given year (1 in 1,000) This data also presents the likelihood of flooding for the following depths: 0.2m 0.3m 0.6m 0.9m 1.2m NB. This is a complex dataset, with preview available only on certain zoom levels.
Environment Agency copyright and/or database right 2025. All rights reserved.
Risk of Flooding from Rivers and Sea (ROFRS)
2024-09-09T00:00:00
2025-01-27T00:00:00
GIS Team
GIS Team
Not known
GIS Team
gisdata@oxfordshire.gov.uk
Oxfordshire County Council
Flood Risk Management
Planning
Rivers
Environment
Natural risk zones
There are no public access constraints to this data. Use of this data is subject to the licence identified - Open Government Licence.
GIS Team
GIS Team
Not known
Version 6.2 (Build 9200) ; Esri ArcGIS 10.6.1.9273
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GIS Data Team
Oxfordshire County Council
GISData@oxfordshire.gov.uk
RoFRS is created using a combination of local flood model information and national flood modelling. These are used to generate the probabilities of flood risk for each 2m grid square of land, with the aim of using the best available flood risk information in any one location. For particular areas, sections of a previous (50m resolution) RoFRS dataset have been retained and used. These are due to be replaced with new data in the future.
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