CALTROPe started out as an experimental architectural project, but it has come much further than that.
CALTROPe works like a catalyst, provoking positive changes at the most critical shorelines while collecting the sediment transported by the river. The units are installed parallel to the shore, then mangrove saplings are planted into them. After 40 years the modules degrade and disappear. The system is tested with modelling and is currently under development for a pilot project.