dataset · Wales

Flood Risk Assessment Wales (FRAW)

Flood Risk Assessment Wales provides a national assessment of risk flooding from Rivers, the Sea and Surface Water and Small Watercourses. The assessment takes into account flood defences and combines new, national-scale modelling with detailed local-scale models to categories risk into 3 bands, labelled ‘High’, ‘Medium’ and ‘Low’ risk.

Visit source ↗

Source details

Licence: ["There are no access restrictions on this data. NRW may release, publish or disseminate it freely.", "\u00a9 CNC/NRW and UKCEH. Data may be re-used under the terms of the Open Government Licence prov

Evidence quality: 50.4

Listed in data.gov.uk public catalogue API on 2026-10-16; relevance/value screened (haiku).

Metadata checked: 2026-10-14T13:20:00.000Z

What's in it

Data offered docs-verified: river flood risk banding (High/Medium/Low) · sea flood risk banding (High/Medium/Low) · surface water flood risk banding (High/Medium/Low) · small watercourse flood risk banding (High/Medium/Low) · web mapping service · data download and web service
Coverage llm-inferred: Wales
Update frequency docs-verified: biannually
Access docs-verified: Free and open, no access restrictions; may be re-used under the Open Government Licence (per entry licence field)

Useful for

Use cases llm-inferred: Flood risk screening of Welsh sites for FRA scoping using High/Medium/Low bands · Surface water and small watercourse flood context for drainage strategies in Wales · Flood risk constraints mapping for planning and site selection in Wales
Audience llm-inferred: flood consultants · drainage engineers · planners · GIS analysts

Limitations

Constraints llm-inferred: Categorical High/Medium/Low bands only; the docs describe no depth or probability values · Biannual update frequency, so recent changes may lag · Wales only; not applicable to England or Scotland · Download format and resolution are not stated in the docs

Evidence

Check upstream coverage, uncertainty and licence before use. Station observations are not forecasts or design levels.