Floating structures made from a natural substrate on which vegetation grows.
Installing floating structures in front of dikes mitigates local waves and currents. That reduces the burden on the dike and improves flood prevention. Using natural substrates leads to the development of vegetation on the floating structures. Reducing waves and currents promotes sedimentation and helps to create an area with clearer water, and a fine location for underwater plants to grow, resulting in a habitat for fauna.
Traditional river banks and dikes in built-up areas are located on the water's edge and they must be able to withstand the waves and currents independently. There is little or no room for nature. The floating structures can take over from natural banks. They provide the natural conditions that a natural bank would also provide, both on top of the mats (for plants and birds) and below them (for fish). The floating structures can also be used to protect and restore vulnerable natural banks by creating sheltered areas.