Today's economy doesn't answer today's needs. The world needs a transition to the circular economy. Waterweg aims to contribute to this transition by showing that things can be done differently. We research & design circular solutions, focussing on dredged sediments. Why dredged sediments? After a waterway is dredged, the dredged sediments are moved to a remote depot where it is dried for about a year. When the sediments are dry they are again moved, from the depot to applications on industrial areas. Every step in this process costs money, time and CO2 and no where in the chain value gets added to the dredged sediments. We interfere in this process, by developping circular business cases for dredged sediments, cutting both costs, time and CO2 emissions.