The Council's Waterway Enhancement Programme is an example of an innovative strategy based on sustainable practices already initiated. Another initiative has been the oxidation ponds at the Bromley sewage treatment plant, which provide an important habitat for birds while playing a key role in the disposal of city effluent. As well as providing opportunities for recreation, cycleways and pedestrian linkages the green corridor encourages the flow of plants and wildlife. The strategy is aimed at encouraging the management of the city's natural and physical resources in a way that contributes to the health of life support systems rather than degrading them. To Protect Our Waterways Members of the Waterways enhancement team reviewing a landscape plan at Corsers Stream.
Space is needed along streams, creeks and channels for a waterway to function effectively.
If fences are required they should be built away from streams and be of open construction to allow movement of water, riverside birds and insect life. 20 and 30 metres from the edge of the bank, depending on the type of waterway. Anyone planning a building, filling or other development near a river, stream or estuary needs to check which setback width applies to them. When development intrudes in the waterway setback, a resource consent application to the Christchurch City Council is required. If consent is granted, conditions may include a requirement to plant local native species along the waterway.