How we keep the UK’s longest river flowing to protect water supply, business and habitats
![](https://environmentagency.blog.gov.uk/wp-content/uploads/sites/84/2015/09/Clwedog-Reservoir-620x410.jpg)
From its source in mid Wales to its mouth at the Severn Estuary, the River Severn might be the UK’s longest river at 354km, however, occasionally it still needs a helping hand. The River Severn forms part of a large …