The street and the water. Two key elements in many cities, one of these is our eternal city, Rome. Two elements that very often have seen their events influence each other. In river Tiber coexist the past, the present and the future and it evolves like a big creature. The radical cut brought by the edification of the embankments relieved the nightmare of the floods, but on the other hand swept away a fabric of events and social, economic and architectural interlaces which used to elevate and keep vital a very well delimited urban concept.The attempt (utopian) of this planning provocation, will be an imagine of an alternative scenery.