How beavers are protecting West London from flooding

In West London, a family of beavers is making waves by protecting nearby streets and a Tube station from flooding. Five Eurasian beavers were reintroduced to the town of Greenford in October 2023, marking the first presence of the species in the area in nearly 400 years. The beavers live within a fenced site, accessible to the public, under the supervision of conservationists who aim to harness the animals' natural abilities to manage water.

Veterinarian and conservationist Dr. Sean McCormack explains that the beavers were brought in to perform a job: managing water around nearby Greenford Station, where repeated flooding had occurred during heavy rainfall. Instead of constructing expensive engineering works to hold back water, the beavers were tasked with building dams, felling trees, and creating ponds that help retain water and release it more slowly, preventing flooding downstream.

Within months, the beavers had constructed seven dams and created three ponds, effectively managing the flow of water and preventing flooding in the station's lobby and surrounding residential areas. The beavers' work has gone beyond flood protection, creating a lodge and increasing habitat for various wildlife, including beetles, woodpeckers, and bats.

The success of the beavers' efforts has been evident, with no flooding reported in the downstream area by the second winter after their arrival. The breeding success of the parents, Willow and Woody, with three consecutive years of kits, further demonstrates that the animals are settling well. Dr. McCormack emphasizes that the project serves as "nature's report card," showcasing the effectiveness of beavers in flood management and highlighting the potential benefits for communities facing climate change challenges.