Fluvial Flooding
Fluvial flooding refers to flooding that occurs when a river or watercourse exceeds its capacity and overtops its banks, inundating adjacent land. If your site is near a river, speak with a consultant to understand the fluvial risk. The GOV.UK flood zone assessment guidance explains how fluvial flood zones are defined and used in planning decisions.
Case Example
Homes built near a river in Flood Zone 3 are at risk of fluvial flooding during prolonged rainfall, requiring a Flood Risk Assessment and mitigation measures before development is approved.