The legacy of urban rivers can be the basis for new uses and landscapes as well as for addressing climate issues and inhabitants’ needs for nature.

In collaboration with the Seine-Saint-Denis Departmental Council (CD93) and Pleine Commune, two studies providing guidelines on how the Vieille-Mer can be uncovered and reinvented have been carried out: one presents the up river stretch in the George-Valbon Park (3km) and the other the down river section which reaches the confluence of the River Seine and the Saint-Denis Canal (3.5km).
These studies come within the framework of the Departmental Basin Investment Plan. This favours the presence of water in the city by uncovering the Vieille-Mer, integrating urban rainwater management pools and creating sites for bathing in the Georges-Valbon, Sausset and de la Bergère Parks.
The legacy of rainwater and river management systems can be the support for new uses and landscapes as well as reinforcing the links between key players and projects.
Over the course of its history, Seine-Saint-Denis has inherited a considerable amount of knowledge and hydraulic heritage. The Vieille-Mer offers an opportunity to bring together key players in charge of development levers (mobility, project sectors, social, cultural, economic and ecological development) and to reinforce the remarkable qualities of this heritage.
These ambitions aim to render the river visible and to enhance the water cycle, demonstrating the desire to take concrete action with an innovative and decompartmentalised, open minded approach. These studies propose program plans and actions to be contributed to operational studies.