Coombe Mill Fish Pass

The goal of the fish pass is to allow a wide range of species to pass such as eels, trout, salmons. These species have different characteristics and ways to migrate. In order to suit these species, the design has to consider depth, spacing, material and slope variation, to create different conditions in which the fish will progress.

The proposed fish pass design is a simple one-dimensional study and in order to quickly and cost effectively understand the velocity through the structure that will be necessary. The model used for the modelling work was the Flood Modeller hydraulic model, an industry standard software.