Environment Agency - Areas Benefiting from Flood Defences

Alternative names
nat_areasbenefit_v1_19 (Environment Agency)
Land that may benefit from the presence of major defences during a 1% fluvial or 0.5% tidal flood event. These are the areas that would flood if the defences were not present, but may not flood because that defence is present. Areas befitting from flood storage areas may be remote from the flood defence structure.
Published to the R drive
Topic Category
Inland Waters
Collection Period
from - to 2009-11
Publication Date
Environment Agency
Bounding coordinates
West: 486000 East: 552000 North: 245000 South: 189000
Hertfordshire County
Spatial reference system
National Grid of Great Britain
ESRI/Shape file
GIS/Mapping Supervisor, Hertfordshire County Council, County Hall, Pegs Lane, Hertford, SG13 8DQ.
email gis@hertfordshire.gov.uk
Update frequency
Metadata update date
Use constraints
©Environment Agency Copyright and Database right 2008. All rights reserved.
Environment Agency Flood Map Licence
Additional information source
Flood Map Documentation
For queries relating to the use and interpretation of the data please call 08708 506 506 and ask for the Flood Map Advice Line
or email: floodmapping@environment-agency.gov.uk
ENG - English
Responsible officer
Steve Bayley
GIS Officer
Community Information Unit
Review date
Name Long Name Description
More Information
This data is indicative rather than specific and users will need to consult the Environment Agency for further information where appropriate. The Environment Agency will update this data as better information becomes available e.g. changes in hydrological river response, observations following flood events or improved modeling techniques. it should be noted that locations adjacent to rivers and streams that are not included at this stage of the survey may also be at some risk of flooding. When in doubt the Environment Agency should be consulted.
File Path


Change History


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