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National Flood Hazard Maps

The National Flood Risk Maps are based on generalised modelling created as part of Flood Risk Assessment Wales (FRAW) and published as part of Cycle 2 of the Flood Risk Regulations (2009).

The National Flood Hazard Maps have been created for 3 sources of flooding, namely,

1. Flooding from Rivers
2. Flooding from the Sea
3. Flooding from Surface Water & Small Watercourse

National Flood Risk Maps

The National Flood Risk Maps are based on generalised modelling created as part of Flood Risk Assessment Wales (FRAW) and published as part of Cycle 2 of the Flood Risk Regulations (2009).

The National Flood Risk Maps have been created for 3 sources of flooding, namely,

1. Flooding from Rivers
2. Flooding from the Sea
3. Flooding from Surface Water & Small Watercourse

The

Risk of Flooding from Surface Water

This dataset has been superseded by the Surface Water & Small Watercourses component of the new “National Flood Hazard Maps” (2019) which can be found here (link to new products).

An archived version of the Risk of Flooding from Surface Water (2013) is available directly from Natural Resources Wales (opendata@cyfoethnaturiolcymru.gov.uk).