Fournier, MarieBonnefond, Mathieu2023-08-022023-08-022019978-88-99243-93-7https://hdl.handle.net/20.500.14235/494Our presentation focuses on two recent projects of blue-green infrastructures located in the very heart of French middle-size cities in the Western part of France, in the Loire river basin (the Ile aux Planches in Le Mans and the Parc Balzac in Angers). They constitute good illustrations of recent and innovative approaches in the design of blue-green infrastructures. In the two cases, it is interesting to point out the major challenges that planners had to face. First, innovative solutions have been found to overcome technical difficulties (flood-prone areas, brownfield sites, heavy pollution and so on). Second, planners also had to address local conflicts during the definition and implementation of those projects. At last, we point out how those various constraints have been mainly turned into assets and synergies to design multifunctional blue-green infrastructures.enmultifunctionalityblue-green infrastructuresLoire river basin (France)middle-size citiesArticle3741-3748