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
- Dull adnabod
- Rhychwant
- Dosbarthiad
- Ansawdd
- Allweddeiriau
- System Cyfeirio Gofodol
- Cynnwys
- Cyfyngiadau
- Cynnal a chadw
- Metadata
Dull adnabod
- Dynodydd
- NRW_DS125437
- Laith Metadata
- English
- Datganiad
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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
- Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
- 2023-01-17
Rhychwant
Rhychwant
- Hyd
- Wales (WLS)
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Maint Fertigol
- Maint allweddair MEDIN
Dosbarthiad
Dosbarthiad
- Fformat - Math a Disgrifiad
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Geographic Information System
()
- Math
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ESRI Feature Class
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Geographic Information System
()
- Lleolwr Adnoddau
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View and Download
World Wide Web page
- Lleolwr Adnoddau
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View Service
World Wide Web page
Ansawdd
Ansawdd Data
- Cwmpas Ansawdd
- Dataset
- Datganiad
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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
Allweddeiriau
Allweddair
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NRW Thesaurus
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- flood defence
- drainage
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2024-04-09
System Cyfeirio Gofodol
Cynnwys
Gwybodaeth Cynnwys
Proffil CNC
Elfennau CNC
Cyfyngiadau
Cyfyngiadau
Cyfyngiadau ar Fynediad a Defnydd Cyhoeddus
- Math o Gyfyngiad
- Other restrictions
Cyfarwyddeb Cyfyngiadau Mynediad
- Cyfyngiadau
- no limitations
Testun cyfyngiadau mynediad
- Cyfyngiadau eraill
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There are no access restrictions on this data. NRW may release, publish or disseminate it freely.
Defnyddiwch gyfyngiadau
- Cyfyngiadau Defnyddio
- Other restrictions
- Cyfyngiadau eraill
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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.
Datganiad Priodoli
- Cyfyngiadau eraill
- Open Government Licence (OGL)
Math o Drwydded
- Cyfyngiadau eraill
- Open Government Licence (OGL)
Metadata
Metadata
- Dynodydd Ffeil
- 4f4c4942-4343-5764-6473-313235343337 XML
- Laith Metadata
- English
- Math o adnodd
- Dataset
- Dyddiad Metadata
- 2024-05-30T15:37:34.183Z
- Enw Safonol Metadata
- NRW
- Fersiwn Metadata
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1.0