This month, our Project Officer joined the River Restoration Centre on a site visit to the Stroud Rural Sustainable Drainage Project along the River Frome. The Stroud RsuDs project is located in the catchment of the Stroud River Frome, which rises from the Cotswold escarpment in Gloucestershire.
Throughout the project, over 280 measures have been installed over 18km of stream/river. Key activities undertaken include tree-planting, creating bunds to block surface water run-off (see picture), introducing leaky dams, and reducing the speed of flow in erosion gullies by filling with logs and brash.
As pictured, leaky dams are made from felling and thinning out trees along side the stream/river. This allows more light to reach the water course to encourage vegetative growth. The logs are placed at a height that does not impede the low summer flows of the river, yet acts as a barrier to the high flood waters. The result is a healthy summer flow, and a slowing down of the winter floods.