Residents walking the course of Hobson’s Brook will have noticed some changes. New deflectors, made from willow branches and coir, have been introduced to add meanders to the waterway, altering the pattern of water flow and improving the already rich habitat for the fauna that calls the stream home. The intervention is being carried out by the Greater Cambridge Chalk Stream Project and Cambridge City Council, using funds raised through penalties imposed on local water companies.
In the early 17th century, the Brook was straightened and diverted to bring potable water from the springs at Nine Wells into the centre of Cambridge. Today the Brook’s significance lies more in ecology than public health. It offers an outstanding example of a chalk stream, a rare geological feature almost unique to the UK.
The recent interventions seek to reinstate some of the natural properties of chalk streams, and further restore the Brook to optimal health.
Hobson’s Conduit Trust, the body charged with stewardship of the waterway, is grateful for the Council’s contribution and the support of all volunteers. Learn more about the history and ecology of the Brook, as well as the Trust’s work and how to take part, on their website: hobsonsconduittrust.org