Reservoir Flood Extents (Individual)
The data consists of separate packages of data for each large raised reservoir showing the flood extents for two scenarios; a “dry-day” and “wet-day”. The dry day scenario shows the flood extent in the event that the reservoir were to fail and release the water held on a “dry day” when local rivers are at normal levels. This wet day scenario shows the flood extent in the event that the reservoir were to fail and release the water held on a “wet day” when local rivers had already overflowed their banks. Each scenario represents a prediction of a credible worst case scenario, however it’s unlikely that any actual flood would be this large. The data gives no indication of the likelihood or probability of reservoir flooding. Flood extents are not included for smaller reservoirs or for reservoirs commissioned after the reservoir modelling programme began in October 2016. Attribution Statement: © Environment Agency copyright and/or database right 2021. All rights reserved.
dataset
https://environment.data.gov.uk/reservoir-flood-maps
protocol: http:
name: Reservoir Flood Map Search Facility
description: External version on Defra Data Services Platform
https://support.environment.data.gov.uk/hc/en-gb
protocol: http:
name: DSP_CUSTOMER_FORUM
description: DEFRA Data Services Platform Customer Forum
2c8553c9-aa45-4666-9824-8ce0c7faf6a9_resource
eng
http://www.opengis.net/def/crs/EPSG/0/27700
environment
OpenData
reservoir
modelling
mapping
flood
publication
2010-01-13
-6.236
2.072
55.816
49.943
http://data.ordnancesurvey.co.uk/doc/country/england
2021-09-02
creation
2021-09-02
revision
2023-01-11
asNeeded
In 2010 the Environment Agency published the National Reservoir Inundation Maps. The maps provided an indication of the flooding that would occur if a failure of a reservoir embankment or structure led to an uncontrolled release of water. The Environment Agency has reviewed, updated and improved the reservoir flood maps as part of the Reservoir Flood Mapping Project. These maps show the extent of flooding for 1865 large-raised reservoirs that were in operation in October 2016. New reservoirs after that date will be modelled under the next review of the flood maps, which is due in by 2025.
Open format | Shapefile (SHP)
Open Government Licence
There are no public access constraints to this data. Use of this data is subject to the licence identified.
Environment Agency
DSPcustomerforum@environment-agency.gov.uk
https://support.environment.data.gov.uk/hc/en-gb
description: Defra Data Services Forum
pointOfContact
Environment Agency
metadata@environment-agency.gov.uk
pointOfContact
2023-01-11