Internal Drainage Districts (IDD)
Drainage districts are typically found in low-Iying land where boundaries are determined by physical, not, political attributes. Districts vary in nature and size, from the mainly agricultural (such as Conwy, Llanfrothen and Towyn) to the semi-urban (such as the Gwent Levels). Drainage districts are at risk from various sources of flooding. Without flood risk and water level management, drainage districts would be unsuitable to live in and would not protect and provide for the variety of agricultural land, utilities and transport networks that have developed within their boundaries. This dataset shows the location of the boundaries of IDD's within Wales including the maintained watercourses, tidal flaps, pumping stations and for for Caldicot & Wentlooge Levels & Lower Wye and Powysland it also shows locations of sluices. Current Drainage Districts as of 2022: Afon Ganol Ardudwy Marsh Borth Bog Caldicot & Wentlooge Levels & Lower Wye (Gwent Levels) Dysynni Valley Glaslyn - Pensyflog Harlech & Maentwrog Llanfrothen Malltraeth Marsh Mawddach & Wnion Powysland River Conwy Towyn
- Identification
- Extent
- Distribution
- Quality
- Keywords
- Spatial Reference System
- Content
- Constraints
- Maintenance
- Metadata
Identification
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DynodyddIdentifier
- NRW_DS125437
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Laith MetadataMetadata Language
- English
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Lineage
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North IDDs – Digitised from old paper maps dating back to the Gwynedd River Authority days South IDDs - Digitised from old paper maps
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Dyddiad cyfeirnod y set ddata (Cyhoeddiad)Dataset Reference Date (Publication)
- 2023-01-17
Extent
Extent
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HydGeographic Extent
- Wales (WLS)
))
Vertical Extent
- Medin Extent Keyword
Distribution
Dosbarthiad
Distribution
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Fformat - Math a DisgrifiadFormat Type and Description
-
-
Geographic Information System
()
- Specification
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ESRI Feature Class
-
Geographic Information System
()
-
Lleolwr AdnoddauResource Locator
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View and Download
World Wide Web page
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Lleolwr AdnoddauResource Locator
-
View Service
World Wide Web page
Quality
Ansawdd Data
Data quality
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Cwmpas AnsawddQuality Scope
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DatasetDataset
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CydymffurfiadConformity
- Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services
- Explanation
- Degree
- false
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Lineage
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North IDDs – Digitised from old paper maps dating back to the Gwynedd River Authority days South IDDs - Digitised from old paper maps
Keywords
Allweddair
Keywords
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NRW Thesaurus
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- flood defence
- drainage
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MathType
-
ThemeTheme
Dyfyniad
Citation
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Dyddiad (Cyhoeddiad)Date (Publication)
- 2024-04-09
Spatial Reference System
Content
Gwybodaeth Cynnwys
Content Information
Proffil CNC
NRW Profile
Elfennau CNC
Custom Elements
Constraints
Constraints
Limitations on Public Access and Use
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Math o GyfyngiadRestriction type
-
Other restrictionsOther restrictions
Access Constraints Directive
- Limitations
- no limitations
Access Constraints Text
- Other constraints
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There are no access restrictions on this data. NRW may release, publish or disseminate it freely.
Use Constraints
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Cyfyngiadau DefnyddioUse constraints type
-
Other restrictionsOther restrictions
- Other constraints
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© CNC/NRW Data may be re-used under the terms of the Open Government Licence providing it is done so, acknowledging both the source and NRW's copyright. It is the recipient's responsibility to ensure the data is fit for intended purpose.
Attribution Statement
- Other constraints
- Open Government Licence (OGL)
Licence
- Other constraints
- Open Government Licence (OGL)
Metadata
Metadata
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Dynodydd FfeilFile Identifier
- 4f4c4942-4343-5764-6473-313235343337 XML
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Laith MetadataMetadata Language
- English
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Math o adnoddResource type
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DatasetDataset
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Dyddiad MetadataMetadata Date
- 2024-05-30T15:37:34.183Z
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Enw Safonol MetadataMetadata Standard Name
- NRW
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Fersiwn MetadataMetadata Standard Version
-
1.0