The restored site “Cölbe” which is part of the floodplains and tributaries of the rivers Lahn and Ohm. The restoration was realised in 2000 over a length of 200m. The main aim was morphological improvement. Bank fixations were removed to initiate bankside erosion and the river bed and banks were restructured to enhance habitat and biotic diversity. It serves as an important area for characteristic species, flood prevention and local recreation.