The Environment Agency submitted a planning application for the Portreath Flood Alleviation Scheme, according to a report published on 24 September 2026. The agency said Portreath faces some of the highest flood risk in Cornwall and is one of only three communities identified as high risk in the South West Flood Risk Management Plan.

The proposed plans included increasing the capacity and resilience of the historic stream channel, replacing restrictive footbridges, improving maintenance access, protecting structures from erosion and adding a new flow control structure. Nature measures included managing invasive species and planting native trees, shrubs and streamside vegetation while retaining almost all existing high-quality trees. The agency said the scheme would have no impact on bathing water quality and would support continued operation of the Portreath Tunnel, a flood defence asset it said has helped protect the village for nearly 100 years.

Ben Johnstone, the agency's Area Flood and Coastal Risk Manager for Devon, Cornwall and the Isles of Scilly, said flood risk in the village is serious and increasing, with water levels able to rise within minutes during intense rainfall.