Environment Agency - River Centrelines

Alternative names
nat_centrelines_v8_0 (Environment Agency)
Main rivers are watercourses shown on the statutory main river maps held by the Environment Agency and the Department of environment, Food and Rural affairs, and can include any structure or appliance for controlling or regulating the flow of water into, in or out of the channel. The Environment Agency has permissive powers to carry out works of maintenance and improvement on these rivers. Their formal consent is required for works that affect a main river.
Published to the R drive
Topic Category
Inland Waters
Collection Period
from - to 2009-06
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
22nd October 2008
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
File Path


Change History


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