Identification

Title

Statutory Main River Map Variations

Alternative title(s)

Sealed Main River Variations

Statutory (Sealed) Main Rivers Variations

Abstract

The Statutory Main River Map Variations dataset defines changes to the Statutory Main River Map. Statutory Main Rivers Map defines statutory watercourses in England designated as Main Rivers by Environment Agency. Watercourses designated as ‘main’ are generally the larger arterial watercourses. The Environment Agency has permissive powers, but not a duty, to carry out maintenance, improvement or construction work on designated main rivers. All other open water courses in England are determined by statute as an ‘ordinary watercourse’. On these watercourses the Lead Local flood Authority or, if within an Internal Drainage District, the Internal Drainage Board have similar permissive powers to maintain and improve. The Environment Agency notifies the public and interested parties of our intentions to make a change to the statutory main river map and decides which watercourses are designated as Main Rivers following a legal process to determine and publish changes. The change, or variation, to the Statutory Main River Map is either a deletion (also known as a demainment) or an addition (also known as an admainment). There are two reasons for a change to the Statutory Main River Map - Designation and Factual. Designation changes are required when we make a decision to lengthen or shorten the section of a river designated as a statutory main river. These changes will determine which risk management authority may carry out maintenance, improvement or construction work on the watercourse. These changes result also in differing legislation applying to the riparian owner and others with an interest. Factual changes may be required to update the map to represent the real position of the watercourse. They do not involve any changes of authority or management. Typical examples of factual changes are when: a watercourse has changed course naturally, a watercourse has been diverted or a survey of a culvert shows a different alignment. A change to the Statutory Main River Map goes through the following stages (identified as Status within the data): Draft Consultation Pending Determination Determination Appeals Pending Appeals Pending Implementation Implemented (Month and Year) Attribution statement: © Environment Agency copyright and/or database right. © Crown copyright and database rights Ordnance Survey 100024198

Resource type

dataset

Resource locator

https://services1.arcgis.com/JZM7qJpmv7vJ0Hzx/arcgis/rest/services/Statutory_Main_River_Map_Variations/FeatureServer/0

protocol: FILE:GEO

name: ESRI REST Service Feature Layer

description: Published ESRI REST Service Feature Layer from Environment Agency ArcGIS Online account

https://support.environment.data.gov.uk/hc/en-gb

protocol: http:

name: DSP_CUSTOMER_FORUM

description: DEFRA Data Services Platform Customer Forum

Unique resource identifier

code

25dde009-ba7d-40de-8380-c5c3bb32ccdc

codeSpace

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

http://www.opengis.net/def/crs/EPSG/0/27700

Classification of spatial data and services

Topic category

environment

inlandWaters

Keywords

Keyword set

keyword value

OpenData

Keyword set

keyword value

watercourse

river

statutory declaration

consultation

river management

originating controlled vocabulary

title

reference date

date type

publication

effective date

2010-01-13

Geographic location

West bounding longitude

-6.236

East bounding longitude

2.072

North bounding latitude

55.816

South bounding latitude

49.943

Extent

Extent group

authority code

code identifying the extent

http://data.ordnancesurvey.co.uk/doc/country/england

Temporal reference

Temporal extent

Begin position

2015-05-01

End position

2019-07-31

Dataset reference date

date type

revision

effective date

2019-08-07

Frequency of update

biannually

Quality and validity

Lineage

Ordnance Survey 1:10,000 Raster Ordnance Survey MasterMap Water Network layer (for factual changes since 2015)

Conformity

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

Open Government Licence

Constraint set

Limitations on public access

There are no public access constraints to this data. Use of this data is subject to the licence identified.

Responsible organisations

Responsible party

organisation name

Environment Agency

email address

DSPcustomerforum@environment-agency.gov.uk

web address

https://support.environment.data.gov.uk/hc/en-gb

description: Defra Data Services Forum

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact

organisation name

Environment Agency

email address

metadata@environment-agency.gov.uk

responsible party role

pointOfContact

Metadata date

2021-04-29

Metadata language