Home / Environment / Elizabeth Line Soil Builds Bird Paradise
Elizabeth Line Soil Builds Bird Paradise
3 Oct
Summary
- Millions of tonnes of excavated soil from Elizabeth line construction were used.
- The soil created new coastal wetlands on Wallasea Island, Essex.
- Nearly 40,000 birds now winter on the restored RSPB reserve.
Soil excavated during the construction of London's Elizabeth line has been repurposed to create thriving coastal wetlands on Wallasea Island in Essex. More than three million tonnes of this material were transported from London to the RSPB nature reserve. There, it was used to raise the ground and form new habitats, including Jubilee Marsh.
In 2015, seawall sections were removed, allowing seawater to return to the island for the first time in 400 years. This rewetting created lagoons, saltmarshes, and islands, providing vital feeding and nesting areas for birds. The wetlands also offer natural flood defence capabilities.
Ten years after the restoration began, the reserve records nearly 40,000 wintering birds, a significant increase from its past. This project exemplifies a successful collaboration between a major infrastructure project and habitat restoration, turning potential waste into a valuable ecological asset.
