The Environment Agency’s recent publication, the ‘Working with Natural Processes Evidence Directory‘, highlights the effectiveness of Natural Flood Management (NFM) strategies in enhancing flood resilience across the UK. These strategies not only mitigate flood risks but also offer benefits such as improved biodiversity and carbon sequestration.

 

In Cambridgeshire, the implementation of Sustainable Drainage Systems (SuDS) exemplifies the application of NFM principles. SuDS mimic natural drainage processes to manage surface water runoff, thereby reducing flood risks associated with urban development. Features such as permeable paving, swales and attenuation basins are designed to collect, store and treat surface water, effectively mitigating potential flooding.

 

Several developments in Cambridgeshire have successfully integrated SuDS into their planning:

• Alconbury Weald: This development incorporates green roofs and swales to manage surface water, enhancing both flood resilience and local biodiversity.
• Eddington, Cambridge: Designed with a comprehensive SuDS network, Eddington utilises features like permeable paving and attenuation ponds to control runoff and improve water quality.
• Northstowe: As a new town, Northstowe has embedded SuDS throughout its infrastructure, including the use of detention basins and wetlands to manage stormwater naturally.

 

These projects demonstrate how integrating natural processes into urban planning can effectively reduce flood risks while providing ecological and community benefits. The Environment Agency’s directory serves as a valuable resource, offering evidence-based guidance to further promote the adoption of NFM measures in regions like Cambridgeshire.