The chalk stream habitat had been degraded by historical management practices
Cain Bio-Engineering in partnership with the Norfolk Rivers Trust, Norfolk Rivers Internal Drainage Board and Acorn Tree Services completed a large scale restoration (comprising a 3km length) of the River Nar in Norfolk. The chalkstream habitat of the River Nar had been degraded by historical management practices including dredging, over abstraction and impounding of water (reducing channel gradient) through installation of weirs.
Cain Bio-Engineering was appointed to undertake an assessment of the fluvial geomorphology of the river, provide a restoration design and supervise the installation of the works. The restoration comprised channel narrowing and habitat improvement using large woody debris (LWD) and coarse woody debris (CWD) sourced from the banks of the river. The project provides an excellent demonstration of the positive habitat improvements that can be achieved with partnership working.
Site visit from Brazil showcasing the West Acre project organised by the Environment Agency.
Read more about the history of Cain Bio-Engineering and its introduction to river restoration projects, across an impressive array of the UK’s most prestigious chalk streams and their tributaries.