Reservoir Flood Extents - Fluvial Contribution (National)

This data shows the extent of river flooding added to the reservoir model to determine the impacts of failure on a wet-day. It is not exactly the same as the flooding from rivers shown in the Flood Map for Planning from Rivers and Sea. The fluvial-only extent should only be used to see the impact the reservoir flooding has.

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 2025. All rights reserved.

Data and Resources

Additional Info

Field Value
Last Updated October 24, 2025, 14:46 (UTC)
Created November 9, 2021, 16:58 (UTC)