Deltaic landscapes will be less extensive globally by the end of the 21st century – there is insufficient sediment to keep pace with projected sea level rise. But deltaic communities have a degree of control over the environment that few other coastal communities enjoy. They can leverage the rivers that feed them to deliver sediment and water to areas that are most valuable, or most vulnerable. This leverage creates a rich target for Nature Based Solutions, Sedimentation Enhancing Strategies, Beneficial Use of Dredged Material, and other approaches that harness the endemic fluvio-deltaic transport system. It also has historically necessitated engineered interventions (levees, navigation dredging) that have profoundly altered the system. This session seeks contributions documenting deliberate interventions to deltaic transport systems that have had either positive or unintended deleterious consequences. It encompasses fieldwork or modeling, landscape-scale experimentation, and analysis that advances the understanding of transport and ecological processes of deltas.