Sections of wetland habitat and open water have been created by dredging, but a major part of the council's task has been to provide alternative supplies of water, since the Eastwood section is cut off from the Langley Mill basin and the original water supply from Moorgreen Reservoir by an infilled section, and there is a 2 miles gap caused by open cast mining between Eastwood and Awsworth, which has destroyed the link with the water supply from Giltbrook.