New canoe pass is fish friendly
9 May 2010
The fish brushes are made of recycled plastic that is flexible enough to allow canoeists to glide over the top of them and yet rigid enough to ceate flows and eddies which allow fish to move upwards over the pass.
More than a 1,000 people used the pass at Porters Lock. The Environment Agency has recently completed a second combined canoe and fish pass at Eldridge's lock just upstream. Here, similar 'fish brushes' have been installed in an 80 metre concrete channel. One advantage of the way both structures are designed is that only need 300 litres of water per seconnd to operate.