To mark World Wetlands Day, we want to celebrate Broomfield Park Wetland project in Enfield, North London.
The 3000m2 wetland, completed in 2019, was supported by the partnership between the Coca-Cola Foundation, WWF-UK and The Rivers Trust. Managed by Enfield Council and led by Thames21, it was primarily created to improve water quality in the nearby Pymmes Brook, a tributary of the Lower Lea - one of the most polluted rivers in the UK.
A surface water sewer running through Broomfield Park drains an urban area of 34 hectares and carries a range of pollutants, including metals, nutrients and hydrocarbons. Flow from the sewer pipe has been diverted into the newly constructed wetland, thereby mitigating the pollution before it reaches the nearby brook.
The project also realises a reduction in local flood risk as some of the surface runoff discharging across the park and the wider catchment during heavy and prolonged rainfall can be stored in the wetland and released slowly over time. The wetland continues to engage the local community, providing access to and enjoyment of a feature of high aesthetic and biodiversity value.
Since it was constructed in early 2019, the wetland has already delivered multiple benefits, including:
- Improved Water Quality: With the flow from the sewer pipe now diverted through the wetland, it is estimated that approximately 200,000 m3 of water per year is now being cleaned through this natural, restorative approach.
The project has been highly commended in the Susdrain SuDs Awards, making it one of the top 4 initiatives of its kind in the country, whilst also being shortlisted for the 2020 Food and Drink Federation Awards and Edie Sustainability Leaders Awards.
Listen to this two-part podcast episode of