4f4c4942-4343-5764-6473-313235343337 eng dataset Natural Resources Wales (NRW) 0300 065 3000 Maes-y-Ffynnon LL57 2DW enquiries@naturalresourceswales.gov.uk pointOfContact 2023-02-01 Gemini 2.2 urn:ogc:def:crs:EPSG::BNG OGP Internal Drainage Districts (IDD) 2023-01-17 publication 125437 https://naturalresources.wales 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 Natural Resources Wales (NRW) 0300 065 3000 Maes-y-Ffynnon LL57 2DW enquiries@naturalresourceswales.gov.uk owner Natural Resources Wales (NRW) 0300 065 3000 Maes-y-Ffynnon LL57 2DW enquiries@naturalresourceswales.gov.uk originator Environment Agency (EA) 08708 506 506 Millbank Tower, 25th Floor SW1P 4XL enquiries@environment-agency.gov.uk originator Environment Agency Wales 08708 506 506 Environment Agency Wales Cambria House CF24 0TP enquiries@environment-agency.gov.uk originator Internal Drainage Board (IDB) 0300 065 3000 Natural Resources Wales Maes y Ffynnon originator unknown Geographic Information System Hydrography GEMET - INSPIRE themes, version 1.0 2023-02-02 publication © 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. otherRestrictions There are no access restrictions on this data. NRW may release, publish or disseminate it freely. eng inlandWaters ISO3166 Countries 2023-02-02 publication Wales (WLS) -5.77774100 -2.60886500 51.24082900 53.51306700 2008-01-01 2014-01-31 Natural Resources Wales (NRW) 0300 065 3000 Maes-y-Ffynnon LL57 2DW enquiries@naturalresourceswales.gov.uk distributor https://datamap.gov.wales/layergroups/geonode:nrw_internal_drainage_district View and Download https://datamap.gov.wales/capabilities/layergroup/4185/?access_token=67k4GhAr91AqiAXnyngsm3l40RrZII&ows_service=wms View Service dataset North IDDs – Digitised from old paper maps dating back to the Gwynedd River Authority days South IDDs - Digitised from old paper maps