Urban infrastructures are essential for maintaining the vital functions of a society. The contraction of local authority budgets, the issues of risk management and aging are all major challenges. Each infrastructure is currently managed independently with little consideration of physical or functional interactions. The implementation of collaborative management strategies largely depends on the ability to deal with these interconnections, in physical and informational terms. In this context, the DIBIM project proposes a collaborative approach for the management of dykes interconnected with urban infrastructures (roads, water and sewer networks) and vegetation with respect to technical and economic risks via the structuring, the centralization and the sharing of data in BIM (Building Information Modelling) between managers. The proposed approach consists of formalizing the technical and economic indicators for monitoring and diagnosing dykes according to a systemic approach (WP1); to propose an efficient collaborative exchange process by collecting the needs of managers and analyzing current processes (WP2) and to structure the data, resulting from WP1&2, for their graphic modeling, their centralization and their sharing in order to plan and manage maintenance work costs (WP3). The collaborative approach, the purpose of this project, will also be a transversal work axis for the WPs. The project team brings together skills in technical and economic infrastructure expertise, vegetation expertise, systemic analysis, performance evaluation, governance and analysis of practices, collection of needs, cost management and structuring, modeling and data management. It relies on four local authorities and a professional association for the collection of needs and the experimentation of the proposed approach.