Old ideas can sometimes use new buildings. New ideas must come from old buildings.
(Jane Jacobs - "The Death and Life of Great American Cities")

recycling: (from the Greek "kyklos", a circle), a series of processes by which products and raw materials are recovered and reused in lieu of disposal as solid or liquid wastes

Buildings and structures can be "recycled", conserving their embodied energies and reinterpreting their heritage. This proposal is to recycle the abandoned railway bridge structure over the Lower Don River into a live/work environment, taking advantage of an unused asset and creating a new urban icon.